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47442 Commits

Author SHA1 Message Date
Chandler Carruth
b29c1d731a Fix warning about || and && without explicit grouping. 
This looks like it flagged an actual bug. Devang, please review. I added
the parentheses that change behavior, but make the behavior more closely
match commit log's intent.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132165 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 23:37:58 +00:00
Devang Patel
77ba0164fe Do not insert anything after terminator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132164 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 23:16:48 +00:00
Chad Rosier
62660310d9 Renamed llvm.x86.sse42.crc32 intrinsics; crc64 doesn't exist. 
crc32.[8|16|32] have been renamed to .crc32.32.[8|16|32] and
crc64.[8|16|32] have been renamed to .crc32.64.[8|64].




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132163 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 23:13:19 +00:00
Devang Patel
9dd19667fb Do not move DBG_VALUE in middle of PHI nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132161 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 22:43:14 +00:00
Devang Patel
97de92c08d If llvm.dbg.value and the value instruction it refers to are far apart then iSel may not be able to find corresponding Node for llvm.dbg.value during DAG construction. Make iSel's life easier by removing this distance between llvm.dbg.value and its value instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132151 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 21:51:06 +00:00
Devang Patel
95ba669e09 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132149 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 21:49:28 +00:00
Devang Patel
785badb83e During branch folding avoid inserting redundant DBG_VALUE machine instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132148 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 21:47:59 +00:00
Akira Hatanaka
33458fedb6 Use MachineFrameInfo::hasCalls instead of MipsFunctionInfo::hasCall to check if 
a function has any function calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132140 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 20:30:31 +00:00
Rafael Espindola
a5e62019d7 Fix some dwarf register numbers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132136 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 19:25:47 +00:00
Rafael Espindola
c9687b32fa Fix LTO builds with xcode 4. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132132 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 18:59:54 +00:00
Akira Hatanaka
cf0cd8005c Add support for C++ exception handling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132131 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 18:59:03 +00:00
Eric Christopher
32bfb2c513 Reorganize these slightly according to operand type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132128 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 18:22:26 +00:00
Akira Hatanaka
78e72d60ec Set HasSetDirective to true. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132127 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 18:16:18 +00:00
Charles Davis
cfb2bbba73 Revert r132111. I built Release (without Asserts), so I didn't know about the 
assert that prevented setting alignment on section creation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132113 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 05:35:55 +00:00
Charles Davis
fad99ae6e7 Align Win64 EH Table sections to 4 bytes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132111 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 05:19:54 +00:00
Stuart Hastings
2aa0f23e1c Reverting 132105: it broke some LLVM-GCC DejaGNU tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132108 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 04:09:49 +00:00
Cameron Zwarich
421b106872 Mark tBX as an indirect branch rather than a return. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132107 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 03:41:12 +00:00
Charles Davis
ca93138e11 Test .seh_startchained and .seh_endchained parsing. 
Rework how the MCWin64EHUnwindInfo instances are stored. Fix issues with
chained unwind areas exposed by the test that were related to this.

The ChainedParent field had the wrong address, because when the chained unwind
info was added, the addresses shifted around. Now we store the pointers to the
structures, which are now allocated from the MC heap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132106 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 02:45:47 +00:00
Stuart Hastings
aa4e6afc9b Correctly handle a one-word struct passed byval on x86_64. 
rdar://problem/6920088


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132105 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 02:44:56 +00:00
Andrew Trick
fcdc9a44e5 indvars: incremental fixes for -disable-iv-rewrite and testcases. 
Use a proper worklist for use-def traversal without holding onto an
iterator. Now that we process all IV uses, we need complete logic for
resusing existing derived IV defs. See HoistStep.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132103 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 00:46:11 +00:00
Jakob Stoklund Olesen
b8d936bc17 Add a RAGreedy::canEvict function. 
This doesn't change functionality (much), but it allows for a more fine-grained
eviction policy. The current policy only compares spill weights, and that is not
always the best thing to do.  Spill weights are designed to serve linear scan,
and they don't consider live range splitting.

Add a mechanism so canEvict() can request that a live range be evicted and
split/spilled. This is to avoid infinite eviction loops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132101 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 23:58:36 +00:00
Eli Friedman
76927d7303 Rewrite fast-isel integer cast handling to handle more cases, and to be simpler and more consistent. 
The practical effects here are that x86-64 fast-isel can now handle trunc from i8 to i1, and ARM fast-isel can handle many more constructs involving integers narrower than 32 bits (including loads, stores, and many integer casts).

rdar://9437928 .



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132099 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 23:49:02 +00:00
Akira Hatanaka
37d22d92df Define WeakRefDirective. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132098 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 23:30:30 +00:00
Eli Friedman
a831a9b972 PR9998: ashr exact %x, 31 is not equivalent to sdiv exact %x, -2147483648. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132097 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 23:26:20 +00:00
Devang Patel
8a115d5bf4 Remove unused statistical counter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132087 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 21:55:40 +00:00
Cameron Zwarich
ad70f6d2b1 Convert tBX_CALL / tBXr9_CALL to actual pseudoinstructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132086 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 21:53:50 +00:00
Charles Davis
410ef2b263 Add tests for .seh_setframe and .seh_handlerdata parsing. Fix issues with 
them.

I had to add a special SwitchSectionNoChange method to MCStreamer just for
.seh_handlerdata. If this isn't OK, please let me know, and I'll find some
other way to fix .seh_handlerdata streaming.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132084 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 21:43:45 +00:00
Eric Christopher
7bb1c40549 Clean up comment a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132083 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 21:19:19 +00:00
Eric Christopher
8f89463894 Implement the 'm' modifier. Note that it only works for memory operands. 
Part of rdar://9119939


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132081 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 20:51:58 +00:00
Akira Hatanaka
d85b3ecbb3 Remove MipsTargetLowering::LowerFP_TO_SINT. Patterns for fp_to_sint have already 
been defined in MipsInstrFPU.td.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132076 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 20:08:05 +00:00
Akira Hatanaka
9c3d57c45e Custom-lower FCOPYSIGN nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132074 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 19:32:07 +00:00
Eli Friedman
783c66414a Prepare ARMFastISel::SelectSIToFP for getRegForValue returning registers for i8 and i16 values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132073 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 19:09:45 +00:00
Evan Cheng
237d10db8c Simplify r132022 based on Cameron's feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132071 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 18:17:13 +00:00
Akira Hatanaka
4c62f765a3 Update MaxCallFrameSize regardless of the relocation model selected. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132070 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 18:08:32 +00:00
Akira Hatanaka
f15f498507 Change initial value of MaxCallFrameSize. MipsFI::getMaxCallFrameSize() should 
return 0 if there are no function calls made. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132065 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 17:52:48 +00:00
Akira Hatanaka
edacba83dc Coding style fixes. Added comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132063 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 17:32:06 +00:00
Francois Pichet
1b47720391 Remove unused OpcodeMask enumerator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132062 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 17:02:53 +00:00
Francois Pichet
d9e57c146d Fix MSVC warning: "is out of range for enum constant" 
MSVC doesn't support 64 bit enum. 
OpcodeMask is not used anywhere in the code base.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132057 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 15:58:10 +00:00
Charles Davis
575630ccb8 Add tests for .seh_savereg and .seh_savexmm parsing. Once again, fix the 
buggy methods that parse these directives.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132045 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:51:25 +00:00
Cameron Zwarich
da86a08284 Restore an accidentally removed comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132044 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:48:17 +00:00
Cameron Zwarich
8e9bace414 Move some code to a more logical place. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132043 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:45:29 +00:00
Cameron Zwarich
106acd4158 Make tTAILJMPr/tTAILJMPrND emit a tBX without a preceding MOV of PC to LR. This 
fixes <rdar://problem/9495913>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132042 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:45:27 +00:00
Cameron Zwarich
328634598f Change the order of tBX's operands so that the predicate operands come after the 
target register, matching BX. I filed this bug because I was confused at first:

PR10007 - ARM branch instructions have inconsistent predicate operand placement
<http://llvm.org/bugs/show_bug.cgi?id=10007>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132041 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:45:23 +00:00
Cameron Zwarich
8f161c3a95 Rename tBX_Rm to tBX. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132040 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:45:20 +00:00
Cameron Zwarich
b36c1ae6d5 Rename the existing tBX/tBXr9 instructions to tBX_CALL/tBXr9_CALL to better 
reflect their actual meaning and match the ARM instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132039 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:45:14 +00:00
Andrew Trick
03d3d3b361 indvars: fixed IV cloning in -disable-iv-rewrite mode with associated 
cleanup and overdue test cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132038 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:42:22 +00:00
Charles Davis
47268164f3 Add a test for .seh_pushframe parsing. Fix the bug exposed by it (and another 
one I found by inspection).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132037 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:08:15 +00:00
Rafael Espindola
fc2bb8c444 Replace the -unwind-tables option with a per function flag. This is more 
LTO friendly as we can now correctly merge files compiled with or without
-fasynchronous-unwind-tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132033 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 03:44:17 +00:00
Akira Hatanaka
053546c31e Fix lowering of DYNAMIC_STACKALLOC nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132030 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 02:20:00 +00:00
Charles Davis
309213279e Add a test for the .seh_handler directive. Fix problems with the parsing 
method exposed by the test. While we're at it, simplify the .seh_proc
parsing method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132028 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 01:33:42 +00:00
Bruno Cardoso Lopes
56926a3961 Fix PR9762 
Enable the parsing of the operand "cpsr_all" for the ARM msr instruction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132026 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 00:35:03 +00:00
Evan Cheng
21d378d735 Forgot dyn_cast check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132025 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 23:47:50 +00:00
Eric Christopher
4db7dec70b Implement the arm 'L' asm modifier. 
Part of rdar://9119939


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132024 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 23:27:13 +00:00
Eric Christopher
e1739d598d Implement the immediate part of the 'B' modifier. 
Part of rdar://9119939


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132023 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 23:15:43 +00:00
Evan Cheng
424641ef83 Fix LoopUnswitch bug. RewriteLoopBodyWithConditionConstant can delete a dead 
case of a switch instruction. Back off this optimization when this would
eliminate all of the predecessors to the latch.

Sorry, I am unable to reduce a reasonably sized test case.

rdar://9486843


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132022 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 23:12:57 +00:00
Eric Christopher
fef50062ea Add more unimplemented asm modifiers and some documentation of what they 
do.

Part of rdar://9119939.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132015 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 22:27:43 +00:00
Eric Christopher
0628d38085 Add support for the arm 'y' asm modifier. 
Fixes part of rdar://9444657


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132011 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 22:10:34 +00:00
Charles Davis
40de0e013a Test basic SEH directive-parsing functionality. Fix a latent bug exposed by 
this test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132004 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 21:22:53 +00:00
Akira Hatanaka
ce98deb9f5 Enable printing of immediates that do not fit in 16-bit. .cprestore can have 
offsets that are larger than 0x10000.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132003 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 21:22:21 +00:00
Eli Friedman
b176399339 Change condition for determining whether a function is small for inlining metrics so that very long functions 
with few basic blocks are not re-analyzed.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131994 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 20:22:24 +00:00
Charles Davis
3b32d0240c Implement the rest of the SEH directive-parsing methods in the COFFAsmParser. 
Add a size alignment check to the .seh_stackalloc directive parser. Add a
more descriptive error message to the .seh_handler directive parser.

Add methods to the TargetAsmInfo struct in support of all this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131992 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 20:06:30 +00:00
Akira Hatanaka
4231c7ea6d Implement byval structure argument passing. The following limitations or 
deficiencies exist:

- Works only if ABI is o32.
- Zero-sized structures cannot be passed.
- There is a lot of redundancy in generated code.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131986 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 19:18:33 +00:00
Eli Friedman
a4d4aeb387 Make instcombine O(N) instead of O(N^2) in code where the same simplifiable constant is used many times. 
Part of rdar://9471075.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131979 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 18:52:07 +00:00
Devang Patel
8ec0c1c07b Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131974 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 18:27:52 +00:00
Dan Gohman
9adf151b3d Make DecomposeGEPExpression check SimplifyInstruction only 
after checking for a GEP, so that it matches what GetUnderlyingObject
does. This fixes an obscure bug turned up by bugpoint in the testcase
for PR9931.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131971 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 18:24:08 +00:00
Charles Davis
6b918b8466 Add a method to TargetRegisterInfo to get the register number that the Win64 EH 
scheme uses internally. Implement it for x86 (the only architecture that LLVM
supports for which this matters right now).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131969 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 16:57:53 +00:00
Cameron Zwarich
13a16083ab Clean up the lazy initialization of DIBuilder a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131956 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 06:00:08 +00:00
Cameron Zwarich
c827939046 Make LoadAndStorePromoter preserve debug info and create llvm.dbg.values when 
promoting allocas to SSA variables. Fixes <rdar://problem/9479036>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131953 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 03:10:43 +00:00
Rafael Espindola
e665798097 Explain FIXME. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131952 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 03:10:31 +00:00
Rafael Espindola
10c3e128ef Fix the defaults for .eh_frame. We were marking it as writable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131951 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 02:50:20 +00:00
Evan Cheng
b5a55d979c - Teach SelectionDAG::isKnownNeverZero to return true (op x, c) when c is 
non-zero.
- Teach X86 cmov optimization to eliminate the cmov from ctlz, cttz extension
  when the source of X86ISD::BSR / X86ISD::BSF is proven to be non-zero.

rdar://9490949


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131948 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 01:48:22 +00:00
Akira Hatanaka
b4d8d31e59 Simplify offset calculation of stack frame objects for $gp restore location and 
variable arguments in LowerCall and LowerFormalArguments. This should also fix
the bug in which handling of variable arguments is incorrect when the front-end
optimizes away unused fixed arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131942 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 00:23:52 +00:00
Devang Patel
a9b324be9c Fix debug info for blocks' variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131940 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 00:22:25 +00:00
Devang Patel
c481b70a6a Remove unnecessary comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131936 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 23:16:14 +00:00
Akira Hatanaka
46da136ec7 Expand f64 FPOW. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131928 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 22:23:58 +00:00
Akira Hatanaka
f89532f8f6 Add pattern for double-to-integer conversion. Patch by Sasa Stankovic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131927 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 22:16:43 +00:00
Devang Patel
9728ea2447 Revert 121907 (it causes llc crash) and apply original patch from PR9817. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131926 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 22:04:42 +00:00
Akira Hatanaka
bdd2ce9741 Fixes related to coding style. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131922 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 21:13:59 +00:00
Dan Gohman
1b58d4536a When checking for signed multiplication overflow, watch out for INT_MIN and -1. 
This fixes PR9845.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131919 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 21:07:39 +00:00
Jim Grosbach
95ae09afde Propagate error correctly in the MC Asm parser for leading '$' expressions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131918 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 20:36:04 +00:00
Akira Hatanaka
f8928c07e7 Fix MipsAsmPrinter::printSavedRegsBitmaskChange. Remove functions and variables 
in MipsFunctionInfo that are no longer used.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131917 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 20:34:30 +00:00
Chris Lattner
32232fc2b5 clarify this, apparently it is confusing :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131916 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 20:17:44 +00:00
Akira Hatanaka
69c19f7316 Change StackDirection from StackGrowsUp to StackGrowsDown. 
The following improvements are accomplished as a result of applying this patch:
- Fixed frame objects' offsets (relative to either the virtual frame pointer or
  the stack pointer) are set before instruction selection is completed. There is
  no need to wait until Prologue/Epilogue Insertion is run to set them.
- Calculation of final offsets of fixed frame objects is straightforward. It is
  no longer necessary to assign negative offsets to fixed objects for incoming
  arguments in order to distinguish them from the others.
- Since a fixed object has its relative offset set during instruction
  selection, there is no need to conservatively set its alignment to 4.
- It is no longer necessary to reorder non-fixed frame objects in 
  MipsFrameLowering::adjustMipsStackFrame.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131915 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 20:16:59 +00:00
Devang Patel
233857537f Preserve debug info during iSel by keeping DanglingDebugInfoMap live until end of function. 
Patch by Micah Villmow


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131908 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 17:44:13 +00:00
Devang Patel
35b6994608 While replacing all uses of a SDValue with another value, do not forget to transfer SDDbgValue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131907 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 17:35:08 +00:00
Devang Patel
88c62fc1b4 Clear list of instructions without DebugLoc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131906 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 17:34:18 +00:00
Charles Davis
16e1b3fcf6 Implement .seh_stackalloc and .seh_pushframe parsing. 
I haven't implemented any of the ones that take registers yet. The problem is
that for x86-64 the streamer methods expect a native x86 register number (note:
%r8-%r15 want 8-15 instead of 0-7; same for %xmm8-%xmm15). I haven't figured
out exactly how I want to do that yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131899 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 16:43:09 +00:00
Chris Lattner
c10ecd8f23 fix a really nasty basicaa mod/ref calculation bug that was causing miscompilation of 
UnitTests/ObjC/messages-2.m with the recent optimizer improvements.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131897 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 05:15:43 +00:00
Cameron Zwarich
d34d429401 Fix <rdar://problem/9476260> by having tail calls always generate 32-bit branches 
in Darwin Thumb2 code. Tail calls are already disabled on Thumb1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131894 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 01:57:17 +00:00
Chris Lattner
613f1a3994 rearrange two transforms, since one subsumes the other. Make the shift-exactness 
xform recurse.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131888 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 00:32:19 +00:00
Chris Lattner
05cd886561 Transform any logical shift of a power of two into an exact/NUW shift when 
in a known-non-zero context.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131887 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 00:21:50 +00:00
Chris Lattner
6083bb9353 use the valuetracking isPowerOfTwo function, which is more powerful than checking 
for a constant directly.  Thanks to Duncan for pointing this out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131885 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 00:09:55 +00:00
Chris Lattner
b3f0673d52 Teach valuetracking that byval arguments with a specified alignment are 
aligned.

Teach memcpyopt to not give up all hope when confonted with an underaligned
memcpy feeding an overaligned byval.  If the *source* of the memcpy can be
determined to be adequeately aligned, or if it can be forced to be, we can
eliminate the memcpy.

This addresses PR9794.  We now compile the example into:

define i32 @f(%struct.p* nocapture byval align 8 %q) nounwind ssp {
entry:
  %call = call i32 @g(%struct.p* byval align 8 %q) nounwind
  ret i32 %call
}

in both x86-64 and x86-32 mode.  We still don't get a tailcall though,
because tailcalls apparently can't handle byval.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131884 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 00:03:39 +00:00
Chris Lattner
ae441cc33c add a helper method to get the byval alignment of an argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131883 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 23:57:23 +00:00
Chris Lattner
9db20f3bd8 Eliminate some temporary variables, and don't call getByValTypeAlignment 
when we're just going to throw the result away.  No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131880 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 23:23:02 +00:00
Chris Lattner
92f920c109 add a missing alias to make us more bug compatible with gcc, PR9378 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131874 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 22:31:57 +00:00
Chris Lattner
805fa97a0f implement PR9315, constant folding exp2 in terms of pow (since hosts without 
C99 runtimes don't have exp2).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131872 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 22:22:35 +00:00
Renato Golin
1ec11fb8b5 RTABI chapter 4.3.4 specifies __eabi_mem* calls. Specifically, __eabi_memset accepts parameters (ptr, size, value) in a different order than GNU's memset (ptr, value, size), therefore the special lowering in AAPCS mode. Implementation by Evzen Muller. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131868 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 21:41:23 +00:00
Charles Davis
fbc539ff37 Add methods to parse the SEH directives to the COFFAsmParser. Implement some 
of them, particularly the ones that don't take arguments. Also implement
.seh_proc and .seh_handler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131866 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 21:12:15 +00:00
Chris Lattner
87943e3698 add a note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131863 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 18:28:46 +00:00