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25414 Commits

Author SHA1 Message Date
Devang Patel
19c874638d Now Attributes are divided in three groups 
- return attributes - inreg, zext and sext
- parameter attributes
- function attributes - nounwind, readonly, readnone, noreturn

Return attributes use 0 as the index.
Function attributes use ~0U as the index.

This patch requires corresponding changes in llvm-gcc and clang.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56704 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 22:53:05 +00:00
Bill Wendling
d5d8191b20 Temporarily reverting r56683. This is causing a failure during the build of llvm-gcc: 
/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -mmacosx-version-min=10.4 -O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Gir/devel/llvm/clean/llvm.obj/include -I/Volumes/Gir/devel/llvm/clean/llvm.src/include -fexceptions -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc.src/gcc/unwind-dw2-fde-darwin.c -o libgcc/./unwind-dw2-fde-darwin.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) && TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical register live information"), function runOnMachineFunction, file /Volumes/Gir/devel/llvm/clean/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp, line 311.
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
{standard input}:3521:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
{standard input}:3521:symbol: "_dwarf_reg_size_table" can't be undefined in a subtraction expression
{standard input}:3520:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56703 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 22:10:44 +00:00
Dan Gohman
533d3b3f37 Fix missing whitespace in the printing of function notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56702 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 22:02:59 +00:00
Dan Gohman
7810bfed55 Rename ConstantSDNode's getSignExtended to getSExtValue, for 
consistancy with ConstantInt, and re-implement it in terms
of ConstantInt's getSExtValue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56700 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 21:54:37 +00:00
Dan Gohman
83ccd14228 Mark lea fi# as being really rematerializable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56698 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 21:30:20 +00:00
Evan Cheng
c739489c19 unpckhps requires sse1, punpckhdq requires sse2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56697 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 21:26:30 +00:00
Dan Gohman
09aae469ce Fix X86FastISel's address folding to check displacement 
values for overflow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56686 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 20:04:15 +00:00
Evan Cheng
36a55023c1 Fix @llvm.frameaddress codegen. FP elimination optimization should be disabled when frame address is desired. Also add support for depth > 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56683 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:48:35 +00:00
Oscar Fuentes
dbc2e856fc CMake: Builds all examples. Corrected name of CBackend target. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56682 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:48:03 +00:00
Dale Johannesen
dfe8c84e1e Generated files for previous patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56679 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:32:34 +00:00
Dale Johannesen
7fefc6b4fe Another file I forgot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56678 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:31:53 +00:00
Dale Johannesen
86098bd6a6 Add "inreg" field to CallSDNode (doesn't increase 
its size).  Adjust various lowering functions to
pass this info through from CallInst.  Use it to
implement sseregparm returns on X86.  Remove
X86_ssecall calling convention.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56677 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:31:26 +00:00
Dan Gohman
97135e1ee5 Factor out the code for determining when symblic addresses 
require RIP-relative addressing and use it to fix a bug
in X86FastISel in x86-64 PIC mode, where it was trying to
use base/index registers with RIP-relative addresses. This
fixes a bunch of x86-64 testsuite failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56676 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:15:30 +00:00
Evan Cheng
a67f32abb5 Avoid spilling EBP / RBP twice in the prologue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56675 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:14:21 +00:00
Owen Anderson
082d351361 We don't need to insert copies for implicit_def's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56674 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 18:50:46 +00:00
Evan Cheng
4367ff7aff X86 address displacement field must be interpreted as a 32-bit value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56665 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 16:58:16 +00:00
Oscar Fuentes
e1ad087fcb CMake: Builds all targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56641 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 04:40:32 +00:00
Dan Gohman
5af29c2e57 Disable support for x86_f80 in X86FastISel. Supporting it would 
require more work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56637 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 01:39:32 +00:00
Bill Wendling
d751c64a67 If we have a function with an unreachable statement such that the ending debug 
information is in an unreachable block, then it's possible that the high/low pc
values won't be set for the dwarf information. E.g., this function:

void abort(void) __attribute__((__noreturn__));
void dead_beef(void) __attribute__ ((noreturn));

int *b;

void dead_beef(void) {
  *b=0xdeadbeef;
  abort();
}

has a call to "@llvm.dbg.region.end" only in the unreachable block:

define void @dead_beef() noreturn nounwind  {
entry:
	call void @llvm.dbg.func.start(...)
	call void @llvm.dbg.stoppoint(...)
...
	call void @abort( ) noreturn nounwind 
	unreachable

return:		; No predecessors!
	call void @llvm.dbg.stoppoint(...)
	call void @llvm.dbg.region.end(...)
	ret void
}

The dwarf information emitted is something like:

0x00000084:     TAG_subprogram [5]  
                 AT_name( "dead_beef" )
                 AT_external( 0x01 )
                 AT_prototyped( 0x01 )
                 AT_decl_file( 0x01 )
                 AT_decl_line( 0x08 )

Note that this is *not* the best fix for this problem, but a band-aid for an
gaping wound. This code needs to be changed when we revamp our debugging
information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56628 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 00:28:12 +00:00
Evan Cheng
4dcc8a373d Prefer movlhps over punpcklqdq, etc. in more cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56627 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 23:35:16 +00:00
Dan Gohman
789ce77c6a Fix a bug in which address displacements were being added to the 
load from the stub, instead of the result of the load from the stub.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56626 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 23:34:02 +00:00
Bill Wendling
c4f72dd6e7 Make pointer parameter const for isUsedInBasicBlock. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56625 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 22:42:01 +00:00
Devang Patel
0598866c05 Large mechanical patch. 
s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g

This sets the stage 
- to implement function notes as function attributes and 
- to distinguish between function attributes and return value attributes.

This requires corresponding changes in llvm-gcc and clang.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56622 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 21:00:45 +00:00
Anton Korobeynikov
32b952a2a6 Reapply 56585:56589 with proper fix for some gcc versions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56621 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 21:00:33 +00:00
Evan Cheng
0b457f0c3a With sse3 and when the source is a load or has multiple uses, favors movddup over shuffp*, pshufd, etc. Without sse3 or when the source is from a register, make use of movlhps 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56620 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 20:50:48 +00:00
Dale Johannesen
c9c6da61ac Accept 'inreg' attribute on x86 functions as 
meaning sse_regparm (i.e. float/double values go
in XMM0 instead of ST0).  Update documentation
to reflect reality.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56619 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 20:47:45 +00:00
Dan Gohman
0c8927efed Avoid a spurious extra space character when printing empty structs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56616 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:37:20 +00:00
Dan Gohman
5dd9c2e9ae Support for i1 XOR in FastISel. It is actually safe because 
i1 operands are assumed to already by zero-extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56615 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:22:52 +00:00
Dan Gohman
77ca41e5c3 Don't print fast-isel debug messages by default. Thanks Chris! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56614 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:21:42 +00:00
Dan Gohman
2c442eda74 Don't forget the newline in debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56613 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:17:27 +00:00
Dan Gohman
33134c4a75 FastISel support for debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56610 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:05:24 +00:00
Richard Pennington
4b052dc63d bug 2812: Segmentation fault on a big emdiam processor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56609 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 16:15:10 +00:00
Dan Gohman
2cc3aa4459 PIC support in X86FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56608 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 15:24:26 +00:00
Evan Cheng
688535e005 Temporarily backing out 56585:56589 to unbreak the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56607 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 07:38:08 +00:00
Dan Gohman
dceffe66b9 Fix a recent fast-isel coverage regression - don't bail out before 
giving the target a chance to materialize constants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56605 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 01:28:51 +00:00
Dan Gohman
2c4bf119be Enable DeadMachineInstructionElim when Fast-ISel is enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56604 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 01:14:49 +00:00
Dan Gohman
723ac3720f Add debug output to this pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56602 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 01:06:50 +00:00
Evan Cheng
89d4a2848d pmovsxbq etc. requires sse4.1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56600 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 00:49:51 +00:00
Dan Gohman
02dae4ba06 Refactor the code that adds standard LLVM codegen passes into 
a separate function, eliminating duplication between the
add-passes-for-file and add-passes-for-machine-code code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56599 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 00:37:07 +00:00
Evan Cheng
aa765b8c35 <rdar://problem/6234798> Assertion failed: (!OpInfo.AssignedRegs.Regs.empty() && "Couldn't allocate input reg!") 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56597 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 00:14:04 +00:00
Dan Gohman
bd0f144cc2 Give LowerSubregs.cpp a top-level description. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56596 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 23:44:12 +00:00
Evan Cheng
ca57f78332 Fix patterns for SSE4.1 move and sign extend instructions. Also add instructions which fold VZEXT_MOVL and VZEXT_LOAD. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56594 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 23:27:55 +00:00
Evan Cheng
8a186ae4aa X86ISD::VZEXT_LOAD should produce and fold a chain. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56593 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 23:26:36 +00:00
Dale Johannesen
8e3455ba17 Remove SelectionDag early allocation of registers 
for earlyclobbers.  Teach Local RA about earlyclobber,
and add some tests for it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56592 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 23:13:09 +00:00
Anton Korobeynikov
742fd195a6 Minor cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56588 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:22:54 +00:00
Anton Korobeynikov
621cdf0057 Get rid of virtual inheritance for ARM TAI 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56587 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:22:27 +00:00
Anton Korobeynikov
93ed1029ec Get rid of virtual inheritance for PPC TAI 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56586 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:22:03 +00:00
Anton Korobeynikov
8490322fa9 Use crazy template-based inheritance instead of virtual one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56585 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:21:39 +00:00
Anton Korobeynikov
541af7f769 Use helper 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56584 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:21:04 +00:00
Anton Korobeynikov
4cad98a0bb SmallPtrSet will be better 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56583 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:20:46 +00:00
Anton Korobeynikov
00181a33d8 Get rid of ReadOnlySection duplicate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56582 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:20:27 +00:00
Anton Korobeynikov
d79cda9232 Use named sections, where they should be 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56581 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:19:13 +00:00
Anton Korobeynikov
6481873dc0 Get rid of now unused {Four,Eight,Sixteen}ByteConstantSection 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56580 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:18:54 +00:00
Anton Korobeynikov
088ae8393f Use generic section-handling stuff to emit constant pool entries 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56579 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:17:59 +00:00
Anton Korobeynikov
dbab2d2272 Cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56578 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:17:27 +00:00
Anton Korobeynikov
36133dd324 Get rid of duplicate char*/Section* stuff for TLS sections 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56577 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:17:06 +00:00
Anton Korobeynikov
0b501d157e Cleanup, no functionality change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56576 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:16:33 +00:00
Anton Korobeynikov
315690ec2a Get rid of duplicate char*/Section* DataSection 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56575 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:16:16 +00:00
Anton Korobeynikov
d7ca416d6c Get rid of duplicate char*/Section* TextSection 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56574 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:15:21 +00:00
Anton Korobeynikov
c25e1ea5e9 Move actual section printing stuff to AsmPrinter from TAI reducing heap traffic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56573 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:14:23 +00:00
Anton Korobeynikov
0c8e80607b Drop obsolete hook and change all usage to new interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56572 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:13:07 +00:00
Anton Korobeynikov
b5a32e2e8c Provide direct function to switch to Section 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56571 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:12:10 +00:00
Anton Korobeynikov
90a7b88c5b SPU section handling is really huge mess. Replace remaining TAI calls for sections with explicit names in order not to block existing backends during section handling migration. SPU folks! Please consider using new section handling facility someday. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56570 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:11:42 +00:00
Anton Korobeynikov
6ec7cf00f0 Remove dead code for PIC16 (preparation to switch to new section handling stuff) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56569 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:11:26 +00:00
Anton Korobeynikov
5979d7192c XMM6-XMM15 are callee-saved on Win64. Patch by Nicolas Capens! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56568 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:03:04 +00:00
Owen Anderson
f835f84071 Fix off-by-one error when updating live intervals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56567 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 21:30:38 +00:00
Evan Cheng
446531e7bb Add DisableGVCompilation which forces the JIT to assert when it tries to allocate space for a GlobalVariable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56557 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 16:25:55 +00:00
Bill Wendling
f3cbca279d Reapplying r56550 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56553 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 10:25:02 +00:00
Bill Wendling
688d1c4ccf Forgot this part with my last patch. Sorry about the breakage. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56552 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 10:16:24 +00:00
Eric Christopher
83e05c48de Temporarily revert r56550 until missing commit can be added. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56551 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 08:30:44 +00:00
Bill Wendling
df0c7bc52d Refactor the constant folding code into it's own function. And call it from both 
the SelectionDAG and DAGCombiner code. The only functionality change is that now
the DAG combiner is performing the constant folding for these operations instead
of being a no-op.

This is *not* in response to a bug, so there isn't a testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56550 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 07:11:26 +00:00
Evan Cheng
a7e6146688 Commit CodeGenPrepare.cpp changes which was accidentially left out of 56526. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56549 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 06:48:55 +00:00
Eric Christopher
692bf6b85e Fix fallout in CodeGenPrepare from 56526. Will likely need more work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56546 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 05:32:41 +00:00
Eric Christopher
2a5196fe67 Fix fallout from revision r56535. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56545 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 04:55:49 +00:00
Oscar Fuentes
5f1f2aef7d CMake: Lists of source files updated. Removed bogus dependency from 
lib/VMCore/CMakeLists.txt


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56541 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 01:58:12 +00:00
Dale Johannesen
86b49f8e2d Next round of earlyclobber handling. Approach the 
RA problem by expanding the live interval of an
earlyclobber def back one slot.  Remove
overlap-earlyclobber throughout.  Remove 
earlyclobber bits and their handling from
live internals.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56539 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 01:07:17 +00:00
Devang Patel
e3d76d37e9 s/ParamAttrsWithIndex/FnAttributeWithIndex/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56535 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 00:55:02 +00:00
Devang Patel
1e48000966 s/ParamAttributeListImpl/AttributeListImpl/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56532 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 00:29:49 +00:00
Dan Gohman
3d84a76917 Refactor the logic for testing if an instruction is dead into a 
separate method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56531 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 00:27:38 +00:00
Dan Gohman
035268eaf7 Set SetStore to false, to allow this pass to delete 
dead loads.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56529 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 00:07:08 +00:00
Dan Gohman
3e4fb70c6a Add a method to MachineInstr for testing whether it makes 
any volatile memory references.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56528 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 00:06:15 +00:00
Devang Patel
20bcaff6a7 Put FN_NOTE_AlwaysInline and others in FnAttr namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56527 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 00:06:15 +00:00
Evan Cheng
da43bcf624 Properly handle 'm' inline asm constraints. If a GV is being selected for the addressing mode, it requires the same logic for PIC relative addressing, etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56526 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 00:05:32 +00:00
Devang Patel
dd4924c564 Move FN_NOTE_AlwaysInline and other out of ParamAttrs namespace. 
Do not check isDeclaration() in hasNote(). It is clients' responsibility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56524 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 23:52:03 +00:00
Devang Patel
06117b6598 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56521 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 23:32:15 +00:00
Devang Patel
2d2255d2d9 s/ParameterAttributes/Attributes/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56520 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 23:25:44 +00:00
Devang Patel
eaf42abab6 s/ParameterAttributes/Attributes/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56513 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 23:03:40 +00:00
Devang Patel
d9b4a5f859 Use parameter attribute store (soon to be renamed) for 
Function Notes also. Function notes are stored at index ~0.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56511 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 22:35:17 +00:00
Dan Gohman
b2c3e3fdd9 Now that DeadMachineInstructionElim is basically working 
correctly, it's not necessary to explicitly remove registers
from their use-def lists.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56509 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 22:04:18 +00:00
Dan Gohman
d57dd5f4e6 Arrange for FastISel code to have access to the MachineModuleInfo 
object. This will be needed to support debug info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56508 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 21:53:34 +00:00
Dan Gohman
8468d1a845 Track local physical register liveness. This is not the most 
efficient implementation possible, but it's pretty simple and
good enough for the time being.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56504 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 21:40:44 +00:00
Chris Lattner
ccef6b5d76 regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56502 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 21:18:31 +00:00
Chris Lattner
013766707b allow inreg on the result of a function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56501 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 21:18:08 +00:00
Dan Gohman
086ec9976f Replace the LiveRegs SmallSet with a simple counter that keeps 
track of the number of live registers, which is all the set was
being used for.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56498 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 18:50:48 +00:00
Dan Gohman
0ba2bcfcc3 Fix these enums' starting values to reflect the way that 
instruction opcodes are now numbered. No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56497 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 18:42:32 +00:00
Dan Gohman
fe29e770e6 Delete an unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56495 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 18:26:47 +00:00
Dan Gohman
8b746969ba Move the code for initializing the global base reg out of 
X86ISelDAGToDAG.cpp and into X86InstrInfo.cpp. This will allow
it to be reused by FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56494 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 18:22:58 +00:00
Duncan Sands
3ee8fc9649 Rationalize the names of passes that print information: 
-callgraph => print-callgraph
    -callscc   => print-callgraph-sccs
    -cfgscc    => print-cfg-sccs
    -externalfnconstants => print-externalfnconstants
    -print               => print-function
    -print-alias-sets (no change)
    -print-callgraph     => dot-callgraph
    -print-cfg           => dot-cfg
    -print-cfg-only      => dot-cfg-only
    -print-dom-info (no change)
    -printm              => print-module
    -printusedtypes      => print-used-types


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56487 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 12:47:39 +00:00
Matthijs Kooijman
1de42e8374 Fix indendation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56486 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 08:54:41 +00:00
Owen Anderson
fae86eddeb Add initial support for inserting last minute copies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56485 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 04:37:10 +00:00
Evan Cheng
364091e090 Support x86 specific inline asm modifier 'J'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56483 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 23:57:37 +00:00
Dan Gohman
87a0f10dc7 Fix the alignment of loads from constant pool entries when the 
load address has an offset from the base of the constant pool
entry.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56479 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 22:40:08 +00:00
Devang Patel
f3ba70861c Add hasNote() to check note associated with a function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56477 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 22:32:29 +00:00
Evan Cheng
ef901c5756 Livestacks really does preserve everything. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56476 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 22:26:15 +00:00
Evan Cheng
8b56a90bec Instead of setPreservesAll, just mark them preseving machine loop info and machine dominators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56475 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 22:21:38 +00:00
Owen Anderson
e04cec0ecf Significant improvements to the logic for merging live intervals. This code can't 
just use LI::MergeValueAsValue, as its behavior in the presence of overlapping ranges
isn't what StrongPHIElimination wants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56472 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 21:58:58 +00:00
Dale Johannesen
0bb41608e9 Make log, log2, log10, exp, exp2 use Expand by 
default.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56471 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 21:57:32 +00:00
Evan Cheng
bbeeb2a61e Mark several codegen passes as preserving all analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56469 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 20:58:04 +00:00
Dale Johannesen
f74185b80e More refactoring. Yawn. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56468 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 20:51:30 +00:00
Dale Johannesen
c4342eab9b Refactor FP intrinisic setup. Per review feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56456 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 19:51:58 +00:00
Oscar Fuentes
1d8e4cfdb7 CMake build system: support for parallel builds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56453 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 18:21:51 +00:00
Evan Cheng
242ebd145d Per review feedback: Only perform 
(srl x, (trunc (and y, c))) -> (srl x, (and (trunc y), c))
etc. when both "trunc" and "and" have single uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56452 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 18:19:24 +00:00
Arnold Schwaighofer
290ae0398e Change the calling convention used when tail call optimization is enabled from CC_X86_32_TailCall to CC_X86_32_FastCC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56436 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 14:50:07 +00:00
Oscar Fuentes
3d01fc7de8 Initial support for the CMake build system. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56419 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 01:08:49 +00:00
Bill Wendling
cd4c73aa70 Add helper function to get a 32-bit floating point constant. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56418 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-22 00:44:35 +00:00
Chris Lattner
743922ea75 Fold immediates into X86 shifts with fast isel. This generates: 
sarl    $3, %ecx

instead of:

movl    $3, %ecx
sarl    %cl, %edx

This shrinks fast isel 176.gcc by about 2000 instructions (.3%)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56413 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-21 21:44:29 +00:00
Dan Gohman
3bdf5fe71a Factor out code into HandleVirtRegDef, for consistency with 
Handle{Virt,Phys}Reg{Def,Use}. Remove a redundant check
for register zero, and redundant checks for isPhysicalRegister.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56412 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-21 21:11:41 +00:00
Dan Gohman
4893c067b7 Instead of building a list and sorting it just to find a maximum element, 
compute the maximum element directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56411 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-21 21:01:49 +00:00
Owen Anderson
134eb73fc3 Fetch the starting index of the block when assigning intervals. This gets live-in indices 
correct in the presence of things like EH labels.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56410 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-21 20:43:24 +00:00
Chris Lattner
ca19a3fd11 don't print GlobalAddressSDNode's with an offset of zero as "foo0". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56399 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-21 18:38:31 +00:00
Chris Lattner
e306b3d0d9 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56391 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-20 19:17:53 +00:00
Duncan Sands
f95f945fb0 Implement review feedback from Devang: make use 
of mayReadFromMemory and mayWriteToMemory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56387 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-20 16:45:58 +00:00
Dale Johannesen
34d8f7559c Teach coalescer about earlyclobber bits. 
Check bits for preferred register.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56384 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-20 02:03:04 +00:00
Evan Cheng
5e8d9def77 Fix PR2808. When regalloc runs out of register, it spill a physical register around the live interval being allocated. Do not continue to try to spill another register, just grab the physical register and move on. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56381 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-20 01:28:05 +00:00
Evan Cheng
91a23c8233 No need to print function stubs for Mac OS X 10.5 and up. Linker will handle it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56378 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-20 00:13:45 +00:00
Evan Cheng
0333920a05 80 column violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56377 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-20 00:13:08 +00:00
Dan Gohman
7e8ef60e3c Fix a FastISel GlobalVariable CSE bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56376 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 23:42:04 +00:00
Evan Cheng
fee2d6937c Continue after removing the current MI. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56372 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 22:49:39 +00:00
Dan Gohman
2ff7fd1461 Refactor X86SelectConstAddr, folding it into X86SelectAddress. This 
results in better code for globals. Also, unbreak the local CSE for
GlobalValue stub loads.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56371 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 22:16:54 +00:00
Dale Johannesen
d6bd733534 Make earlyclobber stuff work when virtual regs 
have previously been assigned conflicting physreg.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56364 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 18:52:31 +00:00
Evan Cheng
20580a1cf6 Re-materalized definition instructions may be dead. Whack them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56352 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 17:38:47 +00:00
Gabor Greif
6f4266506b backing out my last commit, it was not intended to go on the trunk 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56349 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 15:13:20 +00:00
Gabor Greif
6c2c95d0ac first shot at removing Use::Val 
untested, Use::swap() is definitely not done yet

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56348 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 15:03:57 +00:00
Duncan Sands
acdb2eeb45 Remove the MarkModRef pass (use AddReadAttrs instead). 
Unfortunately this means removing one regression test
of GlobalsModRef because I couldn't work out how to
perform it without MarkModRef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56342 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 08:23:44 +00:00
Duncan Sands
9f07a290b9 Add a new pass AddReadAttrs which works out which functions 
can get the readnone/readonly attributes, and gives them it.
The plan is to remove markmodref (which did the same thing
by querying GlobalsModRef) and delete the analogous
functionality from GlobalsModRef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56341 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 08:17:05 +00:00
Dale Johannesen
fa48f94130 Remove AsmThatEarlyClobber etc. from LiveIntervalAnalysis 
and redo as linked list walk.  Logic moved into RA.
Per review feedback.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56326 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 01:02:35 +00:00
Devang Patel
4fe0fe8b49 splitLoop does not handle split condition EQ. 
Fixes PR 2805


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56321 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-18 23:45:14 +00:00
Dan Gohman
3589308f37 Address-mode folding for X86FastISel. It's pretty basic, but it 
catches a fair number of common cases. Note that this currently
causes Fast-ISel to leave behind lots of dead instructions.
Those will be dealt with in subsequent commits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56320 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-18 23:23:44 +00:00
Bill Wendling
670ed09238 Decrementing the iterator here could be wrong if the worklist is empty after the "erase". 
Thanks to Ji Young Park for the patch!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56316 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-18 23:04:18 +00:00
Devang Patel
3d0a9a371c Try to place hoisted instructions befoe icmp instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56315 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-18 22:50:42 +00:00
Evan Cheng
841ee1a12b Somehow RegAllocLinearScan is keeping two pointers to MachineRegisterInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56314 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-18 22:38:47 +00:00
Dan Gohman
1fbc3cd674 Simplify this code. The FastISel class has its own TD member. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56311 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-18 18:26:43 +00:00
Dan Gohman
e251b1529f Don't consider instructions with implicit physical register 
defs to be necessarily live.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56310 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-18 18:22:32 +00:00
Dan Gohman
ee2e403545 Add a new "fast" scheduler. This is currently basically just a 
copy of the BURRList scheduler, but with several parts ripped
out, such as backtracking, online topological sort maintenance
(needed by backtracking), the priority queue, and Sethi-Ullman
number computation and maintenance (needed by the priority
queue). As a result of all this, it generates somewhat lower
quality code, but that's its tradeoff for running about 30%
faster than list-burr in -fast mode in many cases.

This is somewhat experimental. Moving forward, major pieces of
this can be refactored with pieces in common with
ScheduleDAGRRList.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56307 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-18 16:26:26 +00:00
Evan Cheng
bc4707a255 Preliminary support for systems which require changing JIT memory regions privilege from read / write to read / executable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56303 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-18 07:54:21 +00:00
Evan Cheng
057d0c3535 Duh. Default to ARMCC::AL (always). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56301 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-18 07:28:19 +00:00
Evan Cheng
6d63a72858 Clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56300 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-18 07:27:23 +00:00
Evan Cheng
3f7eb8eba0 Cosmetic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56299 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-18 07:24:33 +00:00
Dan Gohman
b5b6ec6488 FastISel: For calls, prefer using the callee's address as a constant 
over having it in a register. And wait until after checking type
legality before requesting that the callee address be placed in a
register. Also, fix support for calls with void return type.

This speeds up fast-isel isel time by about 15% and reduces
instruction counts by about 3% overall on certain testcases. It also
changes many indirect calls to direct calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56292 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-17 21:18:49 +00:00
Dale Johannesen
91aac1015e Add a bit to mark operands of asm's that conflict 
with an earlyclobber operand elsewhere.  Propagate
this bit and the earlyclobber bit through SDISel.
Change linear-scan RA not to allocate regs in a way 
that conflicts with an earlyclobber.  See also comments.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56290 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-17 21:13:11 +00:00
Evan Cheng
870e4bef41 Unallocatable registers do not have live intervals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56287 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-17 18:36:25 +00:00
Devang Patel
48fbc2d39b Do not hoist instruction above branch condition. The instruction may use branch condition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56286 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-17 18:21:49 +00:00
Devang Patel
00622952ce Do not ignore iv uses outside the loop. 
This one slipped through cracks very well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56284 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-17 17:53:47 +00:00
Dan Gohman
59932584a8 Don't worry about clobbering physical register defs that aren't used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56281 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-17 15:25:49 +00:00
Evan Cheng
7fd7ca4e7f Fix addrmode1 instruction encodings; fix bx_ret encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56277 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-17 07:53:38 +00:00
Evan Cheng
29c57c34ef Specify instruction encoding using range list to avoid endianess issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56276 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-17 07:16:21 +00:00
Dan Gohman
682d5a8834 Simplify and generalize X86DAGToDAGISel::CanBeFoldedBy, and draw 
up some new ascii art to illustrate what it does. This change
currently has no effect on generated code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56270 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-17 01:39:10 +00:00
Dan Gohman
d3ead4329e Add a new MachineInstr-level DCE pass. It is very simple, and is intended to 
be used with fast-isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56268 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-17 00:43:24 +00:00
Bill Wendling
7795932d41 Add trampoline support to PPC. GCC simply calls the "__trampoline_setup" 
function with appropriate parameters. This allows us to support blocks on PPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56267 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-17 00:30:57 +00:00
Evan Cheng
1cd332725f When converting a CopyFromReg to a copy instruction, use the register class of its uses to determine the right destination register class of the copy. This is important for targets where a physical register may belong to multiple register classes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56258 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-16 23:12:11 +00:00
Dan Gohman
50284d81f8 Change SelectionDAG::getConstantPool to always set the alignment of the 
ConstantPoolSDNode, using the target's preferred alignment for the
constant type.

In LegalizeDAG, when performing loads from the constant pool, the
ConstantPoolSDNode's alignment is used in the calls to getLoad and
getExtLoad.

This change prevents SelectionDAG::getLoad/getExtLoad from incorrectly
choosing the ABI alignment for constant pool loads when Alignment == 0.
The incorrect alignment is only a performance issue when ABI alignment
does not equal preferred alignment (i.e., on x86 it was generating
MOVUPS instead of MOVAPS for v4f32 constant loads when the default ABI
alignment for 128bit vectors is forced to 1 byte.)

Patch by Paul Redmond!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56253 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-16 22:05:41 +00:00
Bill Wendling
056292fd73 Reverting r56249. On further investigation, this functionality isn't needed. 
Apologies for the thrashing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56251 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-16 21:48:12 +00:00
Dan Gohman
aed48bfee8 Include the alignment value when displaying ConstantPoolSDNodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56250 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-16 21:18:22 +00:00
Bill Wendling
9468a9b6be - Change "ExternalSymbolSDNode" to "SymbolSDNode". 
- Add linkage to SymbolSDNode (default to external).
- Change ISD::ExternalSymbol to ISD::Symbol.
- Change ISD::TargetExternalSymbol to ISD::TargetSymbol

These changes pave the way to allowing SymbolSDNodes with non-external linkage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56249 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-16 21:12:30 +00:00
Dan Gohman
05ae98346a Fix these comments to reflect current reality. Surprisingly, 
MachineConstantPool::getConstantPoolIndex actually expects
a log2-encoded alignment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56248 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-16 20:45:53 +00:00
Dan Gohman
70ff4cf1ba Finally re-apply r46959. This is made feasible by the combination 
of r56230, r56232, and r56246.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56247 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-16 18:52:57 +00:00
Dan Gohman
81b28ceab6 Improve instcombine's handling of integer min and max in two ways: 
- Recognize expressions like "x > -1 ? x : 0" as min/max and turn them
   into expressions like "x < 0 ? 0 : x", which is easily recognizable
   as a min/max operation.
 - Refrain from folding expression like "y/2 < 1" to "y < 2" when the
   comparison is being used as part of a min or max idiom, like
   "y/2 < 1 ? 1 : y/2". In that case, the division has another use, so
   folding doesn't eliminate it, and obfuscates the min/max, making it
   harder to recognize as a min/max operation.

These benefit ScalarEvolution, CodeGen, and anything else that wants to
recognize integer min and max.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56246 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-16 18:46:06 +00:00
Evan Cheng
19a341acb8 AllocateRWXMemory -> AllocateRWX. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56244 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-16 17:28:18 +00:00
Dan Gohman
1937e2f6ca Don't take the time to CheckDAGForTailCallsAndFixThem when tail calls 
are not enabled. Instead just omit the tail call flag when calls are
created.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56235 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-16 01:42:28 +00:00
Dan Gohman
fb2bbbe786 Re-enables the new vector select in the bitcode reader, by modifying the 
bitcode reader/writer as follows:

- add and use new bitcode FUNC_CODE_INST_VSELECT to handle the llvm
select opcode using either i1 or [N x i1] as the selector.
- retain old BITCODE FUNC_CODE_INST_SELECT in the bitcode reader to
handle select on i1 for backwards compatibility with existing bitcode
files.
- re-enable the vector-select.ll test program.

Also, rename the recently added bitcode opcode FUNC_CODE_INST_VCMP to
FUNC_CODE_INST_CMP2 and make the bitcode writer use it to handle
fcmp/icmp on scalars or vectors. In the bitcode writer, use
FUNC_CODE_INST_CMP for vfcmp/vicmp only. In the bitcode reader, have
FUNC_CODE_INST_CMP handle icmp/fcmp returning bool, for backwards
compatibility with existing bitcode files.

Patch by Preston Gurd!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56233 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-16 01:01:33 +00:00
Dan Gohman
fd6edef87b Teach ScalarEvolution to consider loop preheaders in the search for 
an if statement that guards a loop, to allow indvars to avoid smax
operations in more situations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56232 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-15 22:18:04 +00:00
Owen Anderson
99500aeb7c Live intervals for live-in registers should begin at the beginning of a basic block, not at the first 
instruction.  Also, their valno's should have an unknown def.  This has no effect currently, but was
causing issues when StrongPHIElimination was enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56231 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-15 22:00:38 +00:00
Dan Gohman
ad7321f58a Teach LSR to optimize away SMAX operations for tripcounts in common 
cases.  See the comment above OptimizeSMax for the full story, and
the testcase for an example. This cancels out a pessimization
commonly attributed to indvars, and will allow us to lift some of
the artificial throttles in indvars, rather than add new ones.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56230 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-15 21:22:06 +00:00
Bruno Cardoso Lopes
b3d7299694 Fixed Bug 2751 
http://llvm.org/bugs/show_bug.cgi?id=2751

Abicall was enabled even when static code model was provided 
in the command line.
The correct behavior is to disable abicall when static is
specified.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56228 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-15 21:06:55 +00:00
Dan Gohman
5eb0cecbc5 Re-enable SelectionDAG CSE for calls. It matters in the case of 
libcalls, as in this testcase on ARM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56226 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-15 19:46:03 +00:00
Evan Cheng
25f34a30d6 Correctly update kill infos after extending a live range and merge 2 val#'s; fix 56165 - do not mark val# copy field if the copy does not define the val#. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56199 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-15 06:28:41 +00:00
Dan Gohman
8dae138d06 Fix WriteAsOperand to not emit a leading space character. Adjust 
its callers to emit a space character before calling it when a
space is needed.

This fixes several spurious whitespace issues in
ScalarEvolution's debug dumps. See the test changes for
examples.

This also fixes odd space-after-tab indentation in the output
for switch statements, and changes calls from being printed like
this:
  call void @foo( i32 %x )
to this:
  call void @foo(i32 %x)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56196 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-14 17:21:12 +00:00
Dale Johannesen
e009180f2b adjust last patch per review feedback 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56194 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-14 01:44:36 +00:00
Dan Gohman
014278e6a1 Remove isImm(), isReg(), and friends, in favor of 
isImmediate(), isRegister(), and friends, to avoid confusion
about having two different names with the same meaning. I'm
not attached to the longer names, and would be ok with
changing to the shorter names if others prefer it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56189 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 17:58:21 +00:00
Duncan Sands
b8ca4ff643 Fix PR2792: treat volatile loads as writing memory somewhere. 
Treat stores as reading memory, just to play safe.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56188 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 12:45:50 +00:00
Evan Cheng
2aa0e649bf Fix random abort. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56184 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 01:55:59 +00:00
Dan Gohman
095cc29f32 Define CallSDNode, an SDNode subclass for use with ISD::CALL. 
Currently it just holds the calling convention and flags
for isVarArgs and isTailCall.

And it has several utility methods, which eliminate magic
5+2*i and similar index computations in several places.

CallSDNodes are not CSE'd. Teach UpdateNodeOperands to handle
nodes that are not CSE'd gracefully.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56183 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 01:54:27 +00:00
Evan Cheng
e7de7e3574 Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56182 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 01:44:01 +00:00
Evan Cheng
be3034c288 Rely on instruction format to determine so_reg operand for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56181 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 01:38:29 +00:00
Evan Cheng
05fc966401 Revert 56176. All those instruction formats are still needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56180 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 01:35:33 +00:00
Evan Cheng
55375a44f9 Accidentially flipped the condition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56179 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 01:29:57 +00:00
Evan Cheng
42d5ee062a Add debug dumps. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56178 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 01:15:21 +00:00
Evan Cheng
a964b7dffe Eliminate unnecessary instruction formats. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56176 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-12 23:15:39 +00:00
Evan Cheng
49a9f2958d Addrmode 1 S bit can be dynamically set. Look for CPSR def. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56172 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-12 22:45:55 +00:00
Evan Cheng
5f1db7bf31 Rewrite address mode 1 code emission routines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56171 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-12 22:01:15 +00:00
Evan Cheng
ee9e1b0a85 On some targets, non-move instructions can become move instructions because of coalescing. e.g. 
vr2 = OR vr0, vr1
=>
vr2 = OR vr1, vr1   // after coalescing vr0 with vr1

Update the value# of the destination register with the copy instruction if that happens.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56165 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-12 18:13:14 +00:00
Dan Gohman
4fbd796a12 Change ConstantSDNode and ConstantFPSDNode to use ConstantInt* and 
ConstantFP* instead of APInt and APFloat directly.

This reduces the amount of time to create ConstantSDNode
and ConstantFPSDNode nodes when ConstantInt* and ConstantFP*
respectively are already available, as is the case in
SelectionDAGBuild.cpp. Also, it reduces the amount of time
to legalize constants into constant pools, and the amount of
time to add ConstantFP operands to MachineInstrs, due to
eliminating ConstantInt::get and ConstantFP::get calls.

It increases the amount of work needed to create new constants
in cases where the client doesn't already have a ConstantInt*
or ConstantFP*, such as legalize expanding 64-bit integer constants
to 32-bit constants. And it adds a layer of indirection for the
accessor methods. But these appear to be outweight by the benefits
in most cases.

It will also make it easier to make ConstantSDNode and
ConstantFPNode more consistent with ConstantInt and ConstantFP.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56162 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-12 18:08:03 +00:00
Dale Johannesen
913d3dfac4 Pass "earlyclobber" bit through to machine 
representation; coalescer and RA need to know
about it.  No functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56161 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-12 17:49:03 +00:00
Dan Gohman
f5aeb1a8e4 Rename ConstantSDNode::getValue to getZExtValue, for consistency 
with ConstantInt. This led to fixing a bug in TargetLowering.cpp
using getValue instead of getAPIntValue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56159 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-12 16:56:44 +00:00
Duncan Sands
2bb4a4d315 Rather than marking all internal globals "Ref" 
when a readonly declaration is called, set a
flag.  This is faster and uses less memory.
In theory it is less accurate, because before
only those internal globals that were read
by someone were being marked "Ref", but now
all are.  But in practice, thanks to other
passes, all internal globals of the kind
considered here will be both read and stored
to: those only read will have been turned
into constants, and those only stored to will
have been deleted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56143 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-12 07:29:58 +00:00
Dale Johannesen
e2f2083f9c The sequence for ppcf128 compares was not IEEE 
safe in the presence of NaNs.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56136 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-12 00:30:56 +00:00
Dan Gohman
4f833d4351 On 64-bit targets, change 32-bit getelementptr indices to be 64-bit 
getelementptr indices, inserting an explicit cast if necessary.
This helps expose the sign-extension operation to other optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56133 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 23:06:38 +00:00
Dan Gohman
3139ff8f7b Fix a vectorshuffle instcombine bug introduced by r55995. 
Patch by Nicolas Capens!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56129 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 22:47:57 +00:00
Jim Grosbach
e5d20f947a udpate header comment: s/VP/VFP/ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56126 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 21:41:29 +00:00
Arnold Schwaighofer
1fdc40f062 When tailcallopt is enabled all fastcc calls must have an aligned argument stack size. Add a test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56119 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 20:28:43 +00:00
Evan Cheng
8db866808c Fix PR2748. Avoid coalescing physical register with virtual register which would create illegal extract_subreg. e.g. 
vr1024 = extract_subreg vr1025, 1
...
vr1024 = mov8rr AH
If vr1024 is coalesced with AH, the extract_subreg is now illegal since AH does not have a super-reg whose sub-register 1 is AH.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56118 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 20:07:10 +00:00
Owen Anderson
ac34a00fe0 Fix a bug in ANY_EXTEND handling that was breaking 403.gcc on X86-64 in fast isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56117 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 19:44:55 +00:00
Duncan Sands
af8bc26449 Fix comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56116 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 19:41:10 +00:00
Duncan Sands
892b84007c Intrinsics don't touch internal global variables 
(unless passed one via a parameter), even if they
are IntrWriteMem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56115 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 19:35:55 +00:00
Dan Gohman
bcb37fd22f Fix a copy+paste bug that Duncan spotted. For several 
cases it was still getting lucky and detecting overflow
but it was clearly incorrect.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56113 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 18:53:02 +00:00
Evan Cheng
4086906a0f Fix PR2783 - coalescer bug. Missing a TargetRegisterInfo::isVirtualRegister check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56112 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 18:40:32 +00:00
Duncan Sands
1abe60b9be Intrinsics don't read these kinds of global 
variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56105 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 15:43:12 +00:00
Evan Cheng
3885578a36 Fix a 80 column violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56097 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 05:58:06 +00:00
Dale Johannesen
d18a462bdd The version of AtomicSDNode::AtomicSDNode used (only) for 
cmp-and-swap reversed the Cmp and Swap arguments; comments
make it clear this is unintentional.  Unfortunately, the
x86 BE had a compensating reversal, which is removed here.
PPC is OK.

From inspection of the Alpha code I think it is OK, but
if somebody has that platform please check it out.  I
cannot test on that platform.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56091 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 03:12:59 +00:00
Owen Anderson
b63691350d If ISD::ANY_EXTEND fails, try ISD::ZERO_EXTEND and ISD::SIGN_EXTEND before giving up. This fixes 445.gobmk on 
X86-64 in fast isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56088 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 02:41:37 +00:00
Dale Johannesen
209a4099f9 Succumb utterly to compatibility and implement 
__sync_fetch_and_nand as ANDC, even though that's
not what nand means.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56087 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 02:15:03 +00:00
Evan Cheng
d9c553f262 Propagate subreg index when promoting a load to a copy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56085 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 01:02:12 +00:00
Dan Gohman
7f85fbd9de In my analysis for r56076 I missed the case where the original 
multiplication overflows.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56082 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-11 00:25:00 +00:00
Dan Gohman
1df3fd6683 Fix an icmp+sdiv optimization to check for and handle an overflow 
condition. This fixes PR2740.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56076 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 23:30:57 +00:00
Dan Gohman
78efce6155 X86FastISel support for double->float and float->double casts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56070 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 21:02:08 +00:00
Dan Gohman
74321abb4f FastISel support for i1 PHI nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56069 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 21:01:31 +00:00
Dan Gohman
8211648757 FastISel support for i1 constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56068 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 21:01:08 +00:00
Owen Anderson
369e98760b Fix a bug in the coalescer where it didn't check if a live interval existed before trying to manipulate it. This 
was exposed by fast isel's handling of shifts on X86-64.  With this, FreeBench/pcompress2 passes on X86-64 in fast isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56067 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 20:41:13 +00:00
Dan Gohman
0586d91bb3 Add X86FastISel support for static allocas, and refences 
to static allocas. As part of this change, refactor the
address mode code for laods and stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56066 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 20:11:02 +00:00
Evan Cheng
014264b70f Fix PR2664 - spiller GetRegForReload wasn't respecting sub-register indices on machine operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56065 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 20:08:45 +00:00
Evan Cheng
b188dd9c5b Fix a fastcc + sret bug. If fastcc and sret, callee doesn't need to pop the hidden struct ptr; Re-enable fastcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56061 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 18:25:29 +00:00
Dale Johannesen
fb0e1323e2 Handle new intrinsics with vector arguments. 
Patch by Paul Redmond.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56059 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 17:31:40 +00:00
Dan Gohman
3ee25dca5b Add a break statement that I accidentally deleted when 
I shuffled the fast-isel command-line options around. This fixes
a bunch of fast-isel failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56057 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 15:52:34 +00:00
Devang Patel
36a5bf8fd8 fix white spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56056 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 14:49:55 +00:00
Duncan Sands
bf53c2952d Fix name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56055 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 13:22:10 +00:00
Duncan Sands
3ed7d37cbf Add trampoline support for the new FastCC calling 
convention (not related to recent Ada testsuite
failures).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56054 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 13:11:09 +00:00
Duncan Sands
06d77dd945 Turn off the new FastCC for the moment. It causes 
a slew of Ada testsuite failures on x86-32 linux.
Seems to be related to the use of float.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56053 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 13:09:24 +00:00
Bill Wendling
fc2508eb78 Remove unnecessary bit-wise AND from the limited precision work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56049 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 06:26:10 +00:00
Daniel Dunbar
c0c3b9a3d0 Fix 80 col violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56048 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 04:16:29 +00:00
Dan Gohman
cb89309399 Fix a warning about comparing signed and unsigned values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56040 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 01:09:32 +00:00
Evan Cheng
8ec3389aaf Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56037 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 00:30:50 +00:00
Bill Wendling
277fc24a7c Check that both operands are f32 before attempting to lower. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56036 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 00:24:59 +00:00
Bill Wendling
aeb5c7b353 Implement "visitPow". This is mainly used to see if we have a pow() call of this 
form:

          powf(10.0f, x);

If this is the case, and also we want limited precision floating-point
calculations, then lower to do the limited-precision stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56035 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 00:20:20 +00:00
Evan Cheng
9d24ac56e1 A few more places where FPOW is being ignored. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56032 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 23:35:53 +00:00
Dan Gohman
4344a5d0d7 Change -fast-isel-no-abort to -fast-isel-abort, which now defaults 
to being off by default. Also, add assertion checks to check that
the various fast-isel-related command-line options are only used
when -fast-isel itself is enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56029 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 23:05:00 +00:00
Evan Cheng
4b88702ac3 Legalizer was missing code that expand fpow to a libcall. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56028 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 23:02:14 +00:00
Bill Wendling
e10c814c52 Adding 6-, 12-, and 18-bit limited-precision floating-point support for exp2 
function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56025 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 22:39:21 +00:00
Dale Johannesen
d2e51af035 Move the uglier parts of deciding not to emit a 
UsedDirective for some symbols in llvm.used into
Darwin-specific code.  I've decided LessPrivateGlobal
is potentially a useful abstraction and left it in
the target-independent area, with improved comment.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56024 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 22:29:13 +00:00
Bill Wendling
b4ec283049 Add support for 6-, 12-, and 18-bit limited precision calculations of exp for 
floating-point numbers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56023 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 22:13:54 +00:00
Dan Gohman
293d5f8bc0 Add a new option, -fast-isel-verbose, that can be used with 
-fast-isel-no-abort to get a dump of all unhandled instructions,
without an abort.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56021 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 22:06:46 +00:00
Evan Cheng
3ef2d60e95 Clear preference when it no longer makes sense. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56019 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 21:44:23 +00:00
Devang Patel
d22a849282 if loop induction variable is always sign or zero extended then 
extend the type of induction variable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56017 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 21:41:07 +00:00
Devang Patel
bd6dc7a086 Add assertion check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56016 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 21:38:40 +00:00
Devang Patel
4b3f08bac7 fix overflow check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56011 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 20:54:34 +00:00
Owen Anderson
0d95267e49 Clean this up, based on Evan's suggestions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56009 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 20:47:17 +00:00
Bill Wendling
3915025a4f - Add support for 6-, 12-, and 18-bit limited precision floating-point "log" 
values.
- Refactored some of the code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56008 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 20:39:27 +00:00
Evan Cheng
5530216989 Fix PR2757. Ignore liveinterval register allocation preference if the preference register is not in the right register class. This can happen due to sub-register coalescing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56006 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 20:22:01 +00:00
Anton Korobeynikov
19e861a4ff Make safer variant of alias resolution routine to be default 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56005 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 20:05:04 +00:00
Duncan Sands
7ca9d81bce Simplify this some more. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56003 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 19:56:34 +00:00
Anton Korobeynikov
e4c6b61ebd Resolve aliases, when possible 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56001 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 19:04:59 +00:00
Bill Wendling
bd297bcd4a Add limited precision floating-point conversions of log10 for 6- and 18-bit 
precisions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56000 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 18:42:23 +00:00
Dan Gohman
e3b4c0e176 Mark IMPLICIT_DEF as being rematerializable and cheap-as-a-move. 
It's already special-cased and treated as rematerializable within
LiveIntervals; this allows it to be handled by other passes
such as TwoAddressInstrctionPass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55999 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 18:25:28 +00:00
Anton Korobeynikov
820c83bf6c Fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55998 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 18:24:07 +00:00
Anton Korobeynikov
832b2a9cd8 Fix incorrect linker behaviour: we shouldn't resolve weak aliases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55997 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 18:23:48 +00:00
Anton Korobeynikov
bff66b0c6c Replace explicit pointer-size constants to TargetData query. 
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55996 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 18:22:57 +00:00
Dan Gohman
488fbfc69e Make SimplifyDemandedVectorElts simplify vectors with multiple 
users, and teach it about shufflevector instructions.

Also, fix a subtle bug in SimplifyDemandedVectorElts'
insertelement code.

This is a patch that was originally written by Eli Friedman,
with some fixes and cleanup by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55995 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 18:11:14 +00:00
Devang Patel
0938f74242 Simplify. 
Fix outdated comment.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55993 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 17:56:50 +00:00
Duncan Sands
24a052124b Optimization suggested by Matthijs Kooijman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55988 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 13:44:24 +00:00
Duncan Sands
99c1a7c9e1 Correct callgraph construction. It has two problems: 
(1) code left over from the days of ConstantPointerRef:
if a use of a function is a GlobalValue then that is
not considered a reason to add an edge from the external
node, even though the use may be as an initializer for
an externally visible global!  There might be some point
to this behaviour when the use is by an alias (though the
code predated aliases by some centuries), but I think
PR2782 is a better way of handling that.  (2) If function
F calls function G, and also G is a parameter to the
call, then an F->G edge is not added to the callgraph.
While this doesn't seem to matter much, adding such an
edge makes the callgraph more regular.
In addition, the new code should be faster as well as
simpler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55987 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 12:40:47 +00:00
Owen Anderson
baf37cd556 Check for type legality before materializing integer constants in fast isel. With this change, 
all of MultiSource/Applications passes on Darwin/X86 under FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55982 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 06:32:02 +00:00
Dan Gohman
cf01f7a78c Remove the code that protected FastISel from aborting in 
the case of loads, stores, and conditional branches. It can
handle those now, so any that aren't handled should trigger
the abort.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55977 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 02:40:04 +00:00
Dan Gohman
be919409cc Temporarily disable vector select in the bitcode reader. The 
way it handles the type of the condition is breaking plain
scalar select in the case that the value is a
forward-reference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55976 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 02:08:49 +00:00
Evan Cheng
59fbc80f6b Fix a constant lowering bug. Now we can do load and store instructions with funky getelementptr embedded in the address operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55975 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 01:26:59 +00:00
Dale Johannesen
b2dfb89e0e Fix logic for not emitting no-dead-strip for some 
objects in llvm.used (thanks Anton).  Makes visible
the magic 'l' prefix for symbols on Darwin which are
to be passed through the assembler, then removed at
linktime (previously all references to this had been
hidden in the ObjC FE code, oh well).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55973 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 01:21:22 +00:00
Dan Gohman
d8ee59b0ca Update generated files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55972 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 01:13:24 +00:00
Devang Patel
e435a5d937 Fix simplifycfg crash in handing block merge. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55971 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 01:06:56 +00:00
Dan Gohman
f72fb679ef Extend the vcmp/fcmp LLVM IR instructions to take vectors as arguments 
and, if so, to return a vector of boolean as a result;

Extend the select LLVM IR instruction to allow you to specify a result
type which is a vector of boolean, in which case the result will be an
element-wise selection instead of choosing one vector or the other; and

Update LangRef.html to describe these changes.

This patch was contributed by Preston Gurd!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55969 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 01:02:47 +00:00
Bill Wendling
3eb594013f Add support for floating-point calculations of log2 with limited precisions of 6 
and 18.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55968 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 00:28:24 +00:00
Devang Patel
2379089a6e s/RemoveUnreachableBlocks/RemoveUnreachableBlocksFromFn/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55965 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 22:14:17 +00:00
Dale Johannesen
14b0a2b137 Don't suppress no-dead-strip for used static functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55962 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 21:21:49 +00:00
Anton Korobeynikov
a0e8a1e5d3 Reapply 55904: Unbreak and fix indentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55958 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 21:13:56 +00:00
Anton Korobeynikov
a177871c8a Reapply 55901: Drop unused variable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55957 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 21:13:33 +00:00
Anton Korobeynikov
c4da15a5e6 Reapply 55900: We do support EH on x86-64! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55956 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 21:13:08 +00:00
Anton Korobeynikov
b84c1676f1 Reapply 55899: First draft of EH support on x86/64-linux 
Now with fix, which prevents subtle codegen bug to trigger on darwin.
No fix for bug though, it's still there.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55955 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 21:12:47 +00:00
Anton Korobeynikov
260a6b8f85 Reapply blindly reverted 55898: Implement FRAME_TO_ARGS_OFFSET for x86-64 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55954 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 21:12:11 +00:00
Dan Gohman
a8657e3587 Fix a few I's that were meant to be renamed to BI's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55942 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 20:37:59 +00:00
Bill Wendling
1b0123c3cd Reverting r55898 as well. This wasn't reverted in the original revert... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55938 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 19:42:32 +00:00
Bill Wendling
1ed49fb74b Accidental commit of partial 'stack canaries' code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55937 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 18:12:00 +00:00
Dale Johannesen
07cabb9432 Redo the 3 existing low-precision expansions to 
use float constants.  An oversight by the numerics
people who supplied this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55930 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 18:00:26 +00:00
Bill Wendling
a425e0073d Reverting r55898 to r55909. One of these patches was causing an ICE during the full bootstrap on Darwin: 
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/bin/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/lib/
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/include
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/sys-include
-O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc.src/gcc
-I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include
-I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include
-I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include
-DSHARED -m64 -DL_negdi2 -c ../../llvm-gcc.src/gcc/libgcc2.c -o
libgcc/x86_64/_negdi2_s.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) &&
TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical
register live information"), function runOnMachineFunction, file
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp,
line 311.
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/bin/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/lib/
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/include
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/sys-include
-O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc.src/gcc
-I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include
-I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include
-I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include
-DSHARED -m64 -DL_lshrdi3 -c ../../llvm-gcc.src/gcc/libgcc2.c -o
libgcc/x86_64/_lshrdi3_s.o
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
{standard input}:unknown:Undefined local symbol LBB21_11
{standard input}:unknown:Undefined local symbol LBB21_12
{standard input}:unknown:Undefined local symbol LBB21_13
{standard input}:unknown:Undefined local symbol LBB21_8


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55928 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 17:59:12 +00:00
Evan Cheng
debdea0a66 Handle calls which produce i1 results: promote to i8 but and it with 1 to get the low bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55925 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 17:15:42 +00:00
Devang Patel
245d0ab166 Remove unused counter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55924 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 17:14:54 +00:00
Dan Gohman
942ca7f808 In visitUREM, arrange for the temporary UDIV node to be 
revisited, consistent with the code in visitSREM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55923 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 16:59:01 +00:00
Daniel Dunbar
1e0e04caac Add VISIBILITY_HIDDEN on SDISelAsmOperandInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55922 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 16:56:08 +00:00
Dan Gohman
500233aef9 Bitcasting two or from aggregate types is not permitted. Update 
LangRef.html, and teach the verifier to check bitcast instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55921 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 16:45:59 +00:00
Dan Gohman
f91570c264 i128 and f80 are implemented for x86-64 now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55920 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 16:42:56 +00:00
Dan Gohman
82f94f1ad9 Add AsmPrinter support for i128 and larger static initializer data. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55919 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 16:40:13 +00:00
Dan Gohman
863890e2fa Fix copy+pastos in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55918 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 16:31:35 +00:00
Dan Gohman
a47916d379 Fix the string for ISD::UDIVREM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55917 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 16:30:29 +00:00
Dan Gohman
8106b0a995 Delete an unused variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55915 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 16:28:17 +00:00
Devang Patel
175f9d94db Remove OptimizeIVType() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55913 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 16:13:27 +00:00
Duncan Sands
28f02128ae Didn't mean to commit this change to how the 
callgraph is printed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55912 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 16:04:03 +00:00
Evan Cheng
9f1185076d Avoid redefinition and nnbreak windows build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55911 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 16:01:27 +00:00
Anton Korobeynikov
d4fde0b11c Unbreak and fix indentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55904 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 14:23:34 +00:00
Anton Korobeynikov
9bf41effc4 Drop unused variable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55901 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 14:22:38 +00:00
Anton Korobeynikov
28b1deac2c We do support EH on x86-64! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55900 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 14:22:16 +00:00
Anton Korobeynikov
302affbc53 First draft of EH support on x86/64-linux 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55899 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 14:21:53 +00:00
Anton Korobeynikov
559189e0ac Implement FRAME_TO_ARGS_OFFSET for x86-64 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55898 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 14:21:10 +00:00
Duncan Sands
a9c3251e6b Update the callgraph correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55896 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 11:08:09 +00:00
Duncan Sands
34c8847b2d Update the callgraph correctly in ArgumentPromotion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55895 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 11:07:35 +00:00
Duncan Sands
d7b9851c4e Reapply 55859. This doesn't change anything as 
long as the callgraph is correct.  It checks
for wrong callgraphs more strictly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55894 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 11:05:51 +00:00
Evan Cheng
5960e4eb68 Add fast isel physical register definition support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55892 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 08:38:20 +00:00
Evan Cheng
24e3a90904 Add support to extend call operands when needed. Enable x86 fastisel call support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55891 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 06:35:17 +00:00
Bill Wendling
9a0d1ba051 Revert my previous change -- the subtraction of two constants was a no-op 
before. This is taken care of in the selection DAG pass. In my opinion, this
should be in one place or the other. I.e., it should probably be removed from
the DAG combiner (along with the other arithmetic transformations on constants
that are essentially no-ops).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55889 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 01:56:32 +00:00
Bill Wendling
ca460d5a39 Convert 
// fold (sub c1, c2) -> c1-c2

from a no-op into an actual transformation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55886 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-07 11:34:47 +00:00
Duncan Sands
4cddaf77c4 Correct a comment and strip trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55883 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-07 09:54:09 +00:00
Evan Cheng
f3d4efe30c Initial fastisel call support for C, Fast, and X86_FastCall calling conventions. It's meant to handle "simple" calls, i.e. no byval, structret, etc. It doesn't support multi-result returns either. 
Not yet turned on, it needs to support sext / zext of arguments and result.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55882 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-07 09:09:33 +00:00
Evan Cheng
e9ac9e6b7d Some code clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55881 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-07 09:07:23 +00:00
Evan Cheng
f09917847b Indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55880 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-07 09:04:52 +00:00
Evan Cheng
c7fcfa07d9 - Doh. Pass vector by value is bad. 
- Add a AnalyzeCallResult specialized for calls which produce a single value. This is used by fastisel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55879 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-07 09:02:18 +00:00
Evan Cheng
10a8d9c737 Handle x86 truncate to i8 with target hook for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55877 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-07 08:47:42 +00:00
Nuno Lopes
b9baf31679 fix crash when the malloc/free function is defined or is a declaration with 0 parameters. 
this pass doesnt seem to be used, but still it's now a little more correct

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55873 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-06 17:44:06 +00:00
Duncan Sands
fec2c2bf5e When PruneEH turned an invoke into an ordinary 
call (thus changing the call site) it didn't
inform the callgraph about this.  But the
call site does matter - as shown by the testcase,
the callgraph become invalid after the inliner
ran (with an edge between two functions simply
missing), resulting in wrong deductions by
GlobalsModRef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55872 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-06 17:19:29 +00:00
Owen Anderson
3b217c6f5c Fix constant pool loads, and remove broken versions of addConstantPoolReference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55868 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-06 01:11:01 +00:00
Owen Anderson
99d6dca2f8 Fix the X86 addConstantPoolReference, which had the operands in the wrong order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55867 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-06 00:50:00 +00:00
Dale Johannesen
853244f8a6 Next limited float precision expansion (log2 12 bits) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55866 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 23:49:37 +00:00
Owen Anderson
6e6074508c Revert r55859. This is breaking the build in the abscence of its companion commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55865 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 23:36:01 +00:00
Eli Friedman
d0c0fae63b Fix for PR2687: Add patterns to match sint_to_fp and fp_to_sint for <2 x 
i32>.  This is a little messy, but it works.

We should really get rid of the intrinsics, though, since they map
perfectly well to standard LLVM instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55864 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 23:07:03 +00:00
Dan Gohman
8a11053f3c Move the code that inserts copies for function livein registers 
out of ScheduleDAGEmit.cpp and into SelectionDAGISel.cpp. This
allows it to be run exactly once per function, even if multiple
SelectionDAG iterations happen in the entry block, as may happen
with FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55863 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 22:59:21 +00:00
Devang Patel
bcc11d2a71 Remove unused map. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55861 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 21:55:33 +00:00
Duncan Sands
c94fe21a56 Delete the removeCallEdgeTo callgraph method, 
because it does not maintain a correct list
of callsites.  I discovered (see following
commit) that the inliner will create a wrong
callgraph if it is fed a callgraph with
correct edges but incorrect callsites.  These
were created by Prune-EH, and while it wasn't
done via removeCallEdgeTo, it could have been
done via removeCallEdgeTo, which is an accident
waiting to happen.  Use removeCallEdgeFor
instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55859 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 21:43:04 +00:00
Dan Gohman
f58cb6d224 Fix X86FastISel's shift and select code to reject illegal types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55857 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 21:27:34 +00:00
Dale Johannesen
852680a8fa Add the next limited-precision expansion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55856 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 21:27:19 +00:00
Dan Gohman
31d26912cc Fix the opcodes used by X86FastISel for shifts and conditional moves. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55855 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 21:13:04 +00:00
Evan Cheng
0de588fd89 Factor out code that emits load and store instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55854 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 21:00:03 +00:00
Owen Anderson
9c7216f984 Rename method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55853 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 20:49:33 +00:00
Dan Gohman
638c6830c6 FastISel support for AND and OR with type i1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55846 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 18:44:22 +00:00
Dale Johannesen
59e577f73c Add hooks for other intrinsics to get low-precision expansions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55845 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 18:38:42 +00:00
Dan Gohman
c39f4dba1c X86FastISel support for shifts and conditional moves. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55844 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 18:30:08 +00:00
Dan Gohman
40b189e4e2 FastISel support for ConstantExprs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55843 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 18:18:20 +00:00
Dan Gohman
be0034e3c2 Revert r55817. It broke PIC. FastISel will need to find a different 
approach here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55842 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 18:13:01 +00:00
Evan Cheng
e2471a9169 If SSE2 is available, x86 should pass first 3 f32/f64 arguments in XMM registers for fastcc calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55840 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 17:24:07 +00:00
Evan Cheng
c89d2feb35 Add a variant of AnalyzeCallOperands that can be used by fast isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55838 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 16:59:26 +00:00
Duncan Sands
6f0a7687ab Use removeAllCalledFunctions rather than removing 
edges one by one by hand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55836 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 14:56:53 +00:00
Duncan Sands
a7212e5826 Remove trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55835 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 12:37:12 +00:00
Duncan Sands
cae62e3498 Make this pass return that it made a change if 
it modifies a functions attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55831 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 09:08:37 +00:00
Duncan Sands
1c11debc94 "Fix" PR2762. The testcase now crashes codegen 
elsewhere due to a missing pattern for
v2f64 = sint_to_fp v2i32.  That is PR2687.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55828 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 08:13:35 +00:00
Dan Gohman
3dd168d445 Fix a search+replace-o. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55824 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 01:58:21 +00:00
Dale Johannesen
601d3c0145 Add -flimit-float-precision to enable some faster, 
but less accurate (non-IEEE) code sequences for
certain math library functions.  Add the first of
several such expansions.  Don't worry, if you don't
turn it on it won't affect you.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55823 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 01:48:15 +00:00
Dan Gohman
4f22bb0676 Check a comparion's operand type for legality before 
expanding its operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55820 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 01:33:56 +00:00
Dan Gohman
f52550b50e Fix X86FastISel code for comparisons and conditional branches 
to check the result of getRegForValue before using it, and
to check for illegal operand types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55819 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 01:15:35 +00:00
Dan Gohman
087c8507e5 FastISel support for unreachable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55818 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 01:08:41 +00:00
Dan Gohman
c7f4a8a80c In FastISel mode, the scheduler may be invoked multiple times 
in the same block. Fix the entry-block handling to only run at
at the beginning of the entry block, and not any other times.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55817 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 01:07:48 +00:00
Dan Gohman
d89ae99ec8 X86FastISel support for conditional branches. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55816 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 01:06:14 +00:00
Owen Anderson
95267a1e67 Add initial support for selecting constant materializations that require constant 
pool loads on X86 in fast isel.  This isn't actually used yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55814 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 00:06:23 +00:00
Dan Gohman
6e3f05f5ce X86FastISel support for ICmpInst and FCmpInst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55811 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 23:26:51 +00:00
Evan Cheng
4a03775777 For whatever the reason, x86 CallingConv::Fast (i.e. fastcc) was not passing scalar arguments in registers. This patch defines a new fastcc CC which is slightly different from the FastCall CC. In addition to passing integer arguments in ECX and EDX, it also specify doubles are passed in 8-byte slots which are 8-byte aligned (instead of 4-byte aligned). This avoids a potential performance hazard where doubles span cacheline boundaries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55807 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 22:59:58 +00:00
Devang Patel
deafefabae A loop may be unswitched multiple times. Reconstruct dom info. at the end. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55806 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 22:43:59 +00:00
Devang Patel
db10033d7c If function notes say optimize for size, then adjust alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55794 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 21:03:41 +00:00
Dan Gohman
5b2298005d Add an include of SmallSet.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55793 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 20:49:27 +00:00
Devang Patel
027bb92541 Initialize loop data first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55792 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 20:36:36 +00:00
Duncan Sands
f423abc289 Neaten this up a bit. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55789 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 19:16:20 +00:00
Devang Patel
10b359ccb6 Do not unswitch if the function notes say we're optimizing this function for size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55786 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 18:55:13 +00:00
Andrew Lenharth
eb50479714 try to seperate the mechanism into something others can use 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55785 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 18:51:26 +00:00
Dale Johannesen
53bfbbccbf Add intrinsic forms of pow and exp2. The non-intrinsic 
forms remain to handle older IR files, but will go away soon.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55781 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 18:30:46 +00:00
Dan Gohman
ae73dc1448 Tidy up several unbeseeming casts from pointer to intptr_t. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55779 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 17:05:41 +00:00
Owen Anderson
79924eb6f5 Fix the ordering of operands to the store (inverted relative to LLVM IR), and fix the testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55777 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 16:48:33 +00:00
Dan Gohman
6448d91ad1 Clean up uses of TargetLowering::getTargetMachine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55769 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 15:39:15 +00:00
Andrew Lenharth
ef7803217a cleanup as per Duncan's review 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55766 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 14:34:22 +00:00
Owen Anderson
a3971dfbfe Add a first attempt at implementing stores for X86 fast isel using target hooks. 
Dan or Evan, please review.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55764 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 07:08:58 +00:00
Evan Cheng
373d50af1d Load from GV stub should be locally CSE'd. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55763 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 06:18:33 +00:00
Evan Cheng
90960280ee Fix an overly strict assertion. Source register of a copy may not be killed, it may be killed by an implicit super-register use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55762 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 05:43:55 +00:00
Evan Cheng
c2feb5c262 Remove code that pad number of bytes to pop for X86_FastCall CC. The code doesn't do the "aligning" for Cygwin, Mingw, and Windows. But aligning it on Darwin and Linux breaks gcc compatibility. That ruled out all the platforms we support! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55756 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 01:04:15 +00:00
Dale Johannesen
7794f2a3a7 Add intrinsics for log, log2, log10, exp, exp2. 
No functional change (and no FE change to generate them).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55753 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 00:47:13 +00:00
Dan Gohman
104e4ce162 Do trivial local CSE for constants and other non-Instruction values 
in FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55748 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:32:19 +00:00
Dan Gohman
2a7c671e2e Put RegsForValue in the llvm namespace to avoid warnings about 
classes in the llvm namespace having members with types from
anonymous namespaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55747 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:18:39 +00:00
Dan Gohman
3df24e667f Create HandlePHINodesInSuccessorBlocksFast, a version of 
HandlePHINodesInSuccessorBlocks that works FastISel-style. This
allows PHI nodes to be updated correctly while using FastISel.

This also involves some code reorganization; ValueMap and
MBBMap are now members of the FastISel class, so they needn't
be passed around explicitly anymore. Also, SelectInstructions
is changed to SelectInstruction, and only does one instruction
at a time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55746 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:12:08 +00:00
Devang Patel
7bbb4339f9 Update inline threshold for current function if the notes say, optimize for size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55745 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:06:09 +00:00
Owen Anderson
0c7f91cf84 Fix a bug that prevented PRE from applying in some cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55744 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:06:07 +00:00
Devang Patel
72ab076e67 Avoid extra comma. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55742 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 22:55:40 +00:00
Devang Patel
52e89dd4e2 Parse and print opt_size note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55740 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 22:10:21 +00:00
Andrew Lenharth
cf996d4b56 Initial version of a Partial Specialization IPO pass. It triggers a couple hundred times on 176.gcc. I don't know the performance impact yet, the heuristic is quite simple still. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55734 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 21:00:28 +00:00
Dale Johannesen
61e6093dc8 Do not emit a UsedDirective for things in the llvm.used 
list that have internal linkage; the linker doesn't need
or want this.  (These objects must still be preserved
at compile time, so just removing them from the llvm.used
list doesn't work.)  Should affect only Darwin.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55722 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 20:34:58 +00:00
Devang Patel
7946e7b8a4 Fix typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55720 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 20:25:40 +00:00
Devang Patel
79cca4f49f Add parentheses to make code more readable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55717 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 19:57:15 +00:00
Devang Patel
3fb68373c4 Fix comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55716 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 19:52:17 +00:00
Duncan Sands
34f2a0ca17 If a SCC has a node without a function, then the SCC 
analysis would bail out without removing function
records for other members of the SCC (which may exist
if those functions read or wrote global variables).
Since these are initialized to "readnone", this
resulted in incorrect alias analysis results.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55714 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 19:37:16 +00:00
Devang Patel
22ec199fa0 Add custom inliner that handles only functions that are marked as always_inline. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55713 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 18:50:53 +00:00
Devang Patel
67243399dd Handle "always inline" note during inline cost analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55712 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 18:47:45 +00:00
Devang Patel
5e06010462 Check noinline note and ignore other notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55711 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 18:46:35 +00:00
Devang Patel
910c120a7c Handle "noinline" note inside the simple inliner. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55708 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 18:10:21 +00:00
Owen Anderson
d5d81a457b Oops, I accidentally broke the fallback case with my last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55704 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 17:51:57 +00:00
Owen Anderson
99aaf108cd Fix an issue where we were reusing materializations of constants in blocks not dominated by the materialization. This is 
the simple fix, materializing the constant before every use.  It might be better to either track domination of uses or
to materialize all constants and the beginning of the function and let remat sort when to do materialization at uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55703 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 17:37:03 +00:00
Dan Gohman
f0cbcd4880 Split the SelectionDAG-building code, including the FunctionLoweringInfo 
and SelectionDAGLowering classes, out of SelectionDAGISel.cpp and put
it in a separate file, SelectionDAGBuild.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55701 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 16:12:24 +00:00
Duncan Sands
b070beee77 Fix maxo bado thinko. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55700 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 16:10:55 +00:00
Dan Gohman
94b8d7ea63 Separate MachineInstr-emitting routines from actual scheduling 
routines and move them into a separate file, ScheduleDAGEmit.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55699 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 16:01:59 +00:00
Dan Gohman
3f62940561 Fix addRegisterDead and addRegisterKilled to be more thorough 
when searching for redundant subregister dead/kill bits.

Previously it was common to see instructions marked like this:
  "RET %EAX<imp-use,kill>, %AX<imp-use,kill>"

With this change, addRegisterKilled continues scanning after
finding the %EAX operand, so it proceeds to discover the
redundant %AX kill and eliminates it, producing this:
  "RET %EAX<imp-use,kill>"

This currently has no effect on the generated code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55698 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 15:56:16 +00:00
Duncan Sands
d0ac373660 Since onlyReadsMemory returns true if in fact 
doesNotAccessMemory, check doesNotAccessMemory
first, since otherwise functions may be
marked readonly rather than readnone.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55697 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 15:31:24 +00:00
Duncan Sands
9a036b945c Cleanup GlobalsModRef a bit. When analysing the 
callgraph, when one member of a SCC calls another
then the analysis would drop to mod-ref because
there is (usually) no function info for the callee
yet; fix this.  Teach the analysis about function
attributes, in particular the readonly attribute
(which requires being careful about globals).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55696 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 12:55:42 +00:00
Nick Lewycky
8373d38afd Try to fold each element of a vector. This is needed to maintain structural 
equivalence.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55694 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 06:48:55 +00:00
Evan Cheng
8b19e56051 Add X86 target hook to implement load (even from GlobalAddress). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55693 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 06:44:39 +00:00
Evan Cheng
f45261fb9b If TargetSelectInstruction returns true, move to next instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55692 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 06:43:41 +00:00
Nick Lewycky
23c04309fb Don't apply this transform to vectors. Fixes PR2756. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55690 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 06:24:21 +00:00
Nick Lewycky
83c05e5d30 Don't crash when trying to constant fold a vector with some elements that can't 
be folded. Instead, fail to fold the entire vector.

We could also return a vector with some elements folded and some not. If anyone
thinks that's a better approach, please speak up!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55689 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 05:54:33 +00:00
Ted Kremenek
b388eb82fb Fix capitalization in #include of FastISel.h. This unbreaks the build on case-sensitive filesystems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55687 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 02:54:11 +00:00
Evan Cheng
88e3041ca6 Unbreak fast isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55685 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 01:04:47 +00:00
Devang Patel
e925ccc553 Add additional check to ensure that iv is canonicalized. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55682 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 00:29:13 +00:00
Devang Patel
a9348dc7ac Check iteration count. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55680 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 00:10:56 +00:00
Evan Cheng
c3f44b0d63 Let tblgen only generate fastisel routines, not the class definition. This makes it easier for targets to define its own fastisel class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55679 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 00:03:49 +00:00
Devang Patel
c72139134c While removing PHI, use basicblock to identify incoming value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55678 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 00:02:42 +00:00