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3782 Commits

Author SHA1 Message Date
Bill Wendling
6e08738d4b Just don't transform this memset into "bzero" if no-builtin is specified. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56888 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 22:05:33 +00:00
Bill Wendling
6f287b22d2 Add the new `-no-builtin' flag. This flag is meant to mimic the GCC 
`-fno-builtin' flag. Currently, it's used to replace "memset" with "_bzero"
instead of "__bzero" on Darwin10+. This arguably violates the meaning of this
flag, but is currently sufficient. The meaning of this flag should become more
specific over time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56885 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 21:22:07 +00:00
Dan Gohman
f06c835f76 Optimize SelectionDAG's AssignTopologicalOrder even further. 
Completely eliminate the TopOrder std::vector. Instead, sort
the AllNodes list in place. This also eliminates the need to
call AllNodes.size(), a linear-time operation, before
performing the sort.

Also, eliminate the Sources temporary std::vector, since it
essentially duplicates the sorted result as it is being
built.

This also changes the direction of the topological sort
from bottom-up to top-down. The AllNodes list starts out in
roughly top-down order, so this reduces the amount of
reordering needed. Top-down is also more convenient for
Legalize, and ISel needed only minor adjustments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56867 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 18:30:35 +00:00
Dan Gohman
5396c99baa Fix X86FastISel's output for x86-32 PIC constant pool addresses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56829 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 01:21:32 +00:00
Dan Gohman
57c3dac0df Move the GlobalBaseReg field out of X86ISelDAGToDAG.cpp 
and X86FastISel.cpp into X86MachineFunction.h, so that it
can be shared, instead of having each selector keep track
of its own.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56825 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 00:58:23 +00:00
Dan Gohman
9b66d73bb1 Disable all x87 usage, including f32 and f64 when the subtarget 
doesn't have SSE(2), with X86FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56823 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 00:48:39 +00:00
Dale Johannesen
71d1bf55a2 Remove misuse of ReplaceNodeResults for atomics with 
valid types.  No functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56808 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 22:25:26 +00:00
Dan Gohman
7962e856d1 Fix an over-pessimization about GlobalVariable addresses in X86FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56802 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 21:13:15 +00:00
Evan Cheng
d47e0b664f Fix PR2835. Do not change the width of a volatile load. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56792 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 17:26:18 +00:00
Duncan Sands
5df3186f59 Rename isWeakForLinker to mayBeOverridden. Use it 
instead of hasWeakLinkage in a bunch of optimization
passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56782 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 11:25:42 +00:00
Evan Cheng
184793fc8a Re-apply 56683 with fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56748 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-27 01:56:22 +00:00
Daniel Dunbar
02a4da2c22 Unbreak build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56727 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-27 00:22:09 +00:00
Devang Patel
2c9c3e7368 Implement function notes as function attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56716 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 23:51:19 +00:00
Evan Cheng
b7a75a5a54 Implement "punpckldq %xmm0, $xmm0" as "pshufd $0x50, %xmm0, %xmm" unless optimizing for code size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56711 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 23:41:32 +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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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