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26800 Commits

Author SHA1 Message Date
Owen Anderson
d3be46214c I accidentally removed this check in an earlier commit, which cause breakage in the pre alloc splitter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62678 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-21 08:18:03 +00:00
Sanjiv Gupta
08b9b05218 Implement LowerOperationWrapper for legalizer. 
Also a few signed comparison fixes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62665 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-21 05:44:05 +00:00
Scott Michel
d1e8d9c0a5 CellSPU: 
- Ensure that (operation) legalization emits proper FDIV libcall when needed.
- Fix various bugs encountered during llvm-spu-gcc build, along with various
  cleanups.
- Start supporting double precision comparisons for remaining libgcc2 build.
  Discovered interesting DAGCombiner feature, which is currently solved via
  custom lowering (64-bit constants are not legal on CellSPU, but DAGCombiner
  insists on inserting one anyway.)
- Update README.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62664 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-21 04:58:48 +00:00
Sanjiv Gupta
bb326bbe88 Allow targets to legalize operations (with illegal operands) that produces multiple values. For example, a load with an illegal operand (a load produces two values, a value and chain). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62663 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-21 04:48:39 +00:00
Evan Cheng
aaf414c92c Favors generating "not" over "xor -1". For example. 
unsigned test(unsigned a) {
  return ~a;
}
llvm used to generate:
movl    $4294967295, %eax
xorl    4(%esp), %eax

Now it generates:
movl      4(%esp), %eax
notl      %eax

It's 3 bytes shorter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62661 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-21 02:09:05 +00:00
Dale Johannesen
ed6af24e14 Make special cases (0 inf nan) work for frem. 
Besides APFloat, this involved removing code
from two places that thought they knew the
result of frem(0., x) but were wrong.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62645 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-21 00:35:19 +00:00
Owen Anderson
6cf7c390ec Be more aggressive about renumbering vregs after splitting them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62639 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-21 00:13:28 +00:00
Devang Patel
476615934a Encode member accessibility. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62638 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-21 00:08:04 +00:00
Devang Patel
2a574669f3 Appropriately mark fowrad decls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62625 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 22:27:02 +00:00
Evan Cheng
a894ae130b Fix PR3243: a LiveVariables bug. When HandlePhysRegKill is checking whether the last reference is also the last def (i.e. dead def), it should also check if last reference is the current machine instruction being processed. This can happen when it is processing a physical register use and setting the current machine instruction as sub-register's last ref. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62617 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 21:25:12 +00:00
Duncan Sands
9c70819da0 Fix typo. Patch by Alexei Svitkine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62616 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 21:20:23 +00:00
Bill Wendling
e9a7286087 Use "SINT_TO_FP" instead of "UINT_TO_FP" when getting the exponent. This was 
causing the limited precision stuff to produce the wrong result for values in
the range [0, 1).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62615 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 21:17:57 +00:00
Devang Patel
2be5893a04 Fix struct member's debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62610 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 21:02:02 +00:00
Devang Patel
6906ba52f0 Need only one set of debug info versions enum. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62602 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 19:22:03 +00:00
Evan Cheng
04ee5a1d92 Change TargetInstrInfo::isMoveInstr to return source and destination sub-register indices as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62600 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 19:12:24 +00:00
Devang Patel
9ec50ab3f8 Fix global variable's address in a DIE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62596 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 18:55:39 +00:00
Devang Patel
eab4a2e8ac Enable debug info for enums. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62594 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 18:35:14 +00:00
Dale Johannesen
24b66a83ca Add an IEEE remainder function, which is not 
fully implemented yet and not used.  This is
mainly to clarify that APFloat::mod implements
C fmod, not remainder.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62593 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 18:35:05 +00:00
Chris Lattner
ccb3ab46f6 improve compatibility with various versions of graphviz, patch by 
Patrick Boettcher!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62592 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 18:25:03 +00:00
Chris Lattner
79abedb83a Eliminate use of uint32_t to improve compatibility with cygwin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62590 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 18:22:57 +00:00
Devang Patel
ce31b027e7 Enable debug info for composite types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62589 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 18:13:03 +00:00
Evan Cheng
e08eb9ca1d Refactor code. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62573 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 06:44:16 +00:00
Bill Wendling
6c53334b90 Shift types need to match. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62571 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 06:10:42 +00:00
Chris Lattner
63bf29b5b1 another fix for PR3354 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62561 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 01:15:41 +00:00
Dan Gohman
8289b05c4c Add a README entry noticed while investigating PR3216. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62558 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 01:07:33 +00:00
Dan Gohman
f5add58549 Fix a dagcombine to not generate loads of non-round integer types, 
as its comment says, even in the case where it will be generating
extending loads. This fixes PR3216.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62557 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 01:06:45 +00:00
Devang Patel
c2997f4a34 Do not use DenseMap because the iterator is invalidated while constructing types. After all there was a reason why std::map was used initially! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62555 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 00:58:55 +00:00
Nick Lewycky
f514e2d28f Make the Interpreter use libffi if it's available. Patch from Alexei Svitkine! 
This requires a rebuild of 'configure' itself. I will be committing that next, but
built with the wrong version of autoconf. Somebody who has the right one, please update
it.

As a side-note, because of the way autoconf works, all built tools will link against
libffi, not just lli. If you know how to fix this, please let me know ...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62553 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 00:51:40 +00:00
Evan Cheng
d0deec20f6 Make linear scan's trivial coalescer slightly more aggressive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62547 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 00:16:18 +00:00
Bill Wendling
5049fa6bbc Doxygen-ify comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62546 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 23:43:56 +00:00
Devang Patel
b79b5359fb Verify debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62545 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 23:21:49 +00:00
Chris Lattner
6ff645bf0f Fix a problem exposed by PR3354: simplifycfg was making a potentially 
trapping instruction be executed unconditionally.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62541 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 23:03:13 +00:00
Dan Gohman
c533612949 Remove SDNode's virtual destructor. This makes it impossible for 
SDNode subclasses to keep state that requires non-trivial
destructors, however it was already effectively impossible,
since the destructor isn't actually ever called. There currently
aren't any SDNode subclasses affected by this, and in general
it's desireable to keep SDNode objects light-weight.

This eliminates the last virtual member function in the SDNode
class, so it eliminates the need for a vtable pointer, making
SDNode smaller.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62539 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 22:39:36 +00:00
Chris Lattner
2f39b29170 improve compatibility with cygwin, patch by Jay Foad! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62535 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 22:00:18 +00:00
Chris Lattner
c9a005807a div/rem by zero and div/rem overflow are both undefined according to 
langref.  Constant fold them to undef instead of trying to preserve
the trap.  This fixes PR3354.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62534 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 21:55:26 +00:00
Dan Gohman
dbe664adcd Fix SelectionDAG::ReplaceAllUsesWith to behave correctly when 
uses are added to the From node while it is processing From's
use list, because of automatic local CSE. The fix is to avoid
visiting any new uses.

Fix a few places in the DAGCombiner that assumed that after
a RAUW call, the From node has no users and may be deleted.

This fixes PR3018.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62533 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 21:44:21 +00:00
Chris Lattner
2c7ed11d93 Fix PR3353, infinitely jump threading an infinite loop make from switches. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62529 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 21:20:34 +00:00
Dale Johannesen
1f54f58e64 compile-time fmod was done incorrectly. PR 3316. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62528 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 21:17:05 +00:00
Devang Patel
0153308abf Verify Intrinsic::dbg_declare. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62526 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 21:00:48 +00:00
Evan Cheng
2722e7b139 DIVREM isel deficiency: If sign bit is known zero, zero out DX/EDX/RDX instead of sign extending the low part (in AX/EAX/RAX) into it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62519 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 19:06:11 +00:00
Evan Cheng
c1a168a0fc Fix 80 col violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62518 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 18:57:29 +00:00
Evan Cheng
5fc742d5b2 Handle ISD::DECLARE with PIC relocation model. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62516 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 18:31:51 +00:00
Nick Lewycky
4bd4787785 Fix typo, sentence fragment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62512 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 17:42:33 +00:00
Bill Wendling
13524bfd00 Temporarily revert r62487. It's causing this error during a release bootstrap of 
llvm-gcc. Most likely, it's miscompiling one of the "gen*" programs:

/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./prev-gcc/xgcc -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./prev-gcc/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.6.0/bin/ -c -g -O2 -mdynamic-no-pic -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -mdynamic-no-pic -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/build -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 -DENABLE_LLVM -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/../llvm.src/include  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS   -o build/gencondmd.o build/gencondmd.c
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: error: expected '}' before ')' token
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: warning: excess elements in struct initializer
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: warning: (near initialization for 'insn_conditions[4]')
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: error: expected '}' before ')' token
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: error: expected ',' or ';' before ')' token
../../llvm-gcc.src/gcc/config/i386/mmx.md:927: error: expected identifier or '(' before ',' token
../../llvm-gcc.src/gcc/config/i386/sse.md:3458: error: expected identifier or '(' before ',' token
...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62506 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 08:46:20 +00:00
Evan Cheng
50c3dfefd9 Minor tweak to LowerUINT_TO_FP_i32. Bias (after scalar_to_vector) has two uses so we should make it the second source operand of ISD::OR so 2-address pass won't have to be smart about commuting. 
%reg1024<def> = MOVSDrm %reg0, 1, %reg0, <cp#0>, Mem:LD(8,8) [ConstantPool + 0]
%reg1025<def> = MOVSD2PDrr %reg1024
%reg1026<def> = MOVDI2PDIrm <fi#-1>, 1, %reg0, 0, Mem:LD(4,16) [FixedStack-1 + 0]
%reg1027<def> = ORPSrr %reg1025<kill>, %reg1026<kill>
%reg1028<def> = MOVPD2SDrr %reg1027<kill>
%reg1029<def> = SUBSDrr %reg1028<kill>, %reg1024<kill>
%reg1030<def> = CVTSD2SSrr %reg1029<kill>
MOVSSmr <fi#0>, 1, %reg0, 0, %reg1030<kill>, Mem:ST(4,4) [FixedStack0 + 0]
%reg1031<def> = LD_Fp32m80 <fi#0>, 1, %reg0, 0, Mem:LD(4,16) [FixedStack0 + 0]
RET %reg1031<kill>, %ST0<imp-use,kill>

The reason 2-addr pass isn't smart enough to commute the ORPSrr is because it can't look pass the MOVSD2PDrr instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62505 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 08:19:57 +00:00
Evan Cheng
a06ec9efe1 Now not UINT_TO_FP is legal (it's marked custom), dag combiner won't 
optimize it to a SINT_TO_FP when the sign bit is known zero. X86 isel should perform the optimization itself.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62504 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 08:08:22 +00:00
Chris Lattner
c4f85dd708 Fix PR3016, a bug which can occur do to an invalid assumption: 
we assumed a CFG structure that would be valid when all code in 
the function is reachable, but not all code is necessarily 
reachable.  Do a simple, but horrible, CFG walk to check for this
case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62487 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 02:46:28 +00:00
Chris Lattner
9e0dad4f41 reduce indentation by using 'continue', no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62477 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 02:07:32 +00:00
Chris Lattner
6fe73bbcf3 Fix some problems in SpeculativelyExecuteBB. Basically, 
because of dead code, a phi could use the speculated instruction
that was not in "BB2".  Make this check explicit and tighten up 
some other corners.  This fixes PR3292.  No testcase becauase this
depends entirely on visitation order of blocks and requires a 
sequence of 8 passes to repro.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62476 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 00:36:37 +00:00
Chris Lattner
9dd3b610dc Make this a bit more explicit about which cases need the 
check.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62474 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-18 23:22:07 +00:00