oota-llvm.git
13 years agoAdd tests for .seh_savereg and .seh_savexmm parsing. Once again, fix the
Charles Davis [Wed, 25 May 2011 04:51:25 +0000 (04:51 +0000)]
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

13 years agoRestore an accidentally removed comment.
Cameron Zwarich [Wed, 25 May 2011 04:48:17 +0000 (04:48 +0000)]
Restore an accidentally removed comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132044 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoMove some code to a more logical place.
Cameron Zwarich [Wed, 25 May 2011 04:45:29 +0000 (04:45 +0000)]
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

13 years agoMake tTAILJMPr/tTAILJMPrND emit a tBX without a preceding MOV of PC to LR. This
Cameron Zwarich [Wed, 25 May 2011 04:45:27 +0000 (04:45 +0000)]
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

13 years agoChange the order of tBX's operands so that the predicate operands come after the
Cameron Zwarich [Wed, 25 May 2011 04:45:23 +0000 (04:45 +0000)]
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

13 years agoRename tBX_Rm to tBX.
Cameron Zwarich [Wed, 25 May 2011 04:45:20 +0000 (04:45 +0000)]
Rename tBX_Rm to tBX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132040 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoRename the existing tBX/tBXr9 instructions to tBX_CALL/tBXr9_CALL to better
Cameron Zwarich [Wed, 25 May 2011 04:45:14 +0000 (04:45 +0000)]
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

13 years agoindvars: fixed IV cloning in -disable-iv-rewrite mode with associated
Andrew Trick [Wed, 25 May 2011 04:42:22 +0000 (04:42 +0000)]
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

13 years agoAdd a test for .seh_pushframe parsing. Fix the bug exposed by it (and another
Charles Davis [Wed, 25 May 2011 04:08:15 +0000 (04:08 +0000)]
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

13 years agoReplace the -unwind-tables option with a per function flag. This is more
Rafael Espindola [Wed, 25 May 2011 03:44:17 +0000 (03:44 +0000)]
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

13 years agoFix lowering of DYNAMIC_STACKALLOC nodes.
Akira Hatanaka [Wed, 25 May 2011 02:20:00 +0000 (02:20 +0000)]
Fix lowering of DYNAMIC_STACKALLOC nodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132030 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoAdd a test for the .seh_handler directive. Fix problems with the parsing
Charles Davis [Wed, 25 May 2011 01:33:42 +0000 (01:33 +0000)]
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

13 years agoFix PR9762
Bruno Cardoso Lopes [Wed, 25 May 2011 00:35:03 +0000 (00:35 +0000)]
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

13 years agoForgot dyn_cast check.
Evan Cheng [Tue, 24 May 2011 23:47:50 +0000 (23:47 +0000)]
Forgot dyn_cast check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132025 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoImplement the arm 'L' asm modifier.
Eric Christopher [Tue, 24 May 2011 23:27:13 +0000 (23:27 +0000)]
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

13 years agoImplement the immediate part of the 'B' modifier.
Eric Christopher [Tue, 24 May 2011 23:15:43 +0000 (23:15 +0000)]
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

13 years agoFix LoopUnswitch bug. RewriteLoopBodyWithConditionConstant can delete a dead
Evan Cheng [Tue, 24 May 2011 23:12:57 +0000 (23:12 +0000)]
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

13 years agoAdd more unimplemented asm modifiers and some documentation of what they
Eric Christopher [Tue, 24 May 2011 22:27:43 +0000 (22:27 +0000)]
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

13 years agoAdd support for the arm 'y' asm modifier.
Eric Christopher [Tue, 24 May 2011 22:10:34 +0000 (22:10 +0000)]
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

13 years agoUpdate documentation: -basicaa does chaining these days.
Dan Gohman [Tue, 24 May 2011 22:01:32 +0000 (22:01 +0000)]
Update documentation: -basicaa does chaining these days.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132010 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoTest case for r132003.
Akira Hatanaka [Tue, 24 May 2011 21:28:18 +0000 (21:28 +0000)]
Test case for r132003.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132005 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoTest basic SEH directive-parsing functionality. Fix a latent bug exposed by
Charles Davis [Tue, 24 May 2011 21:22:53 +0000 (21:22 +0000)]
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

13 years agoEnable printing of immediates that do not fit in 16-bit. .cprestore can have
Akira Hatanaka [Tue, 24 May 2011 21:22:21 +0000 (21:22 +0000)]
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

13 years agoChange condition for determining whether a function is small for inlining metrics...
Eli Friedman [Tue, 24 May 2011 20:22:24 +0000 (20:22 +0000)]
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

13 years agoImplement the rest of the SEH directive-parsing methods in the COFFAsmParser.
Charles Davis [Tue, 24 May 2011 20:06:30 +0000 (20:06 +0000)]
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

13 years agoFix test case.
Akira Hatanaka [Tue, 24 May 2011 19:37:15 +0000 (19:37 +0000)]
Fix test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131988 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoRevision 131986 test case.
Akira Hatanaka [Tue, 24 May 2011 19:29:37 +0000 (19:29 +0000)]
Revision 131986 test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131987 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoImplement byval structure argument passing. The following limitations or
Akira Hatanaka [Tue, 24 May 2011 19:18:33 +0000 (19:18 +0000)]
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

13 years agoMake instcombine O(N) instead of O(N^2) in code where the same simplifiable constant...
Eli Friedman [Tue, 24 May 2011 18:52:07 +0000 (18:52 +0000)]
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

13 years agoRemove dead code.
Devang Patel [Tue, 24 May 2011 18:27:52 +0000 (18:27 +0000)]
Remove dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131974 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoFix "make check" in Release by removing debug-only options from an 'opt' invocation.
Cameron Zwarich [Tue, 24 May 2011 18:26:09 +0000 (18:26 +0000)]
Fix "make check" in Release by removing debug-only options from an 'opt' invocation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131972 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoMake DecomposeGEPExpression check SimplifyInstruction only
Dan Gohman [Tue, 24 May 2011 18:24:08 +0000 (18:24 +0000)]
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

13 years agoAdd a method to TargetRegisterInfo to get the register number that the Win64 EH
Charles Davis [Tue, 24 May 2011 16:57:53 +0000 (16:57 +0000)]
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

13 years agoClean up the lazy initialization of DIBuilder a bit.
Cameron Zwarich [Tue, 24 May 2011 06:00:08 +0000 (06:00 +0000)]
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

13 years agoWork around code generation bug in Visual Studio 2010.
Jakob Stoklund Olesen [Tue, 24 May 2011 03:20:56 +0000 (03:20 +0000)]
Work around code generation bug in Visual Studio 2010.

See http://llvm.org/pr9976 for details.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131954 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoMake LoadAndStorePromoter preserve debug info and create llvm.dbg.values when
Cameron Zwarich [Tue, 24 May 2011 03:10:43 +0000 (03:10 +0000)]
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

13 years agoExplain FIXME.
Rafael Espindola [Tue, 24 May 2011 03:10:31 +0000 (03:10 +0000)]
Explain FIXME.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131952 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoFix the defaults for .eh_frame. We were marking it as writable.
Rafael Espindola [Tue, 24 May 2011 02:50:20 +0000 (02:50 +0000)]
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

13 years ago- Teach SelectionDAG::isKnownNeverZero to return true (op x, c) when c is
Evan Cheng [Tue, 24 May 2011 01:48:22 +0000 (01:48 +0000)]
- 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

13 years agoRemove dead option.
Evan Cheng [Tue, 24 May 2011 01:43:38 +0000 (01:43 +0000)]
Remove dead option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131947 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoFileCheck-ize a couple of IV unit tests.
Andrew Trick [Tue, 24 May 2011 01:02:49 +0000 (01:02 +0000)]
FileCheck-ize a couple of IV unit tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131946 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoFix cmake dependencies.
Rafael Espindola [Tue, 24 May 2011 00:58:06 +0000 (00:58 +0000)]
Fix cmake dependencies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131943 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoSimplify offset calculation of stack frame objects for $gp restore location and
Akira Hatanaka [Tue, 24 May 2011 00:23:52 +0000 (00:23 +0000)]
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

13 years agoFix debug info for blocks' variable.
Devang Patel [Tue, 24 May 2011 00:22:25 +0000 (00:22 +0000)]
Fix debug info for blocks' variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131940 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoTest case for r130799 - indvars: Added canExpandBackEdgeTakenCount.
Andrew Trick [Tue, 24 May 2011 00:17:53 +0000 (00:17 +0000)]
Test case for r130799 - indvars: Added canExpandBackEdgeTakenCount.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131939 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoRemove unnecessary comment.
Devang Patel [Mon, 23 May 2011 23:16:14 +0000 (23:16 +0000)]
Remove unnecessary comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131936 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoExpand f64 FPOW.
Akira Hatanaka [Mon, 23 May 2011 22:23:58 +0000 (22:23 +0000)]
Expand f64 FPOW.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131928 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoAdd pattern for double-to-integer conversion. Patch by Sasa Stankovic.
Akira Hatanaka [Mon, 23 May 2011 22:16:43 +0000 (22:16 +0000)]
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

13 years agoRevert 121907 (it causes llc crash) and apply original patch from PR9817.
Devang Patel [Mon, 23 May 2011 22:04:42 +0000 (22:04 +0000)]
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

13 years agoFixes related to coding style.
Akira Hatanaka [Mon, 23 May 2011 21:13:59 +0000 (21:13 +0000)]
Fixes related to coding style.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131922 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoDocument llvm.exp and llvm.pow.
Dan Gohman [Mon, 23 May 2011 21:13:03 +0000 (21:13 +0000)]
Document llvm.exp and llvm.pow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131921 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoWhen checking for signed multiplication overflow, watch out for INT_MIN and -1.
Dan Gohman [Mon, 23 May 2011 21:07:39 +0000 (21:07 +0000)]
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

13 years agoPropagate error correctly in the MC Asm parser for leading '$' expressions.
Jim Grosbach [Mon, 23 May 2011 20:36:04 +0000 (20:36 +0000)]
Propagate error correctly in the MC Asm parser for leading '$' expressions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131918 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoFix MipsAsmPrinter::printSavedRegsBitmaskChange. Remove functions and variables
Akira Hatanaka [Mon, 23 May 2011 20:34:30 +0000 (20:34 +0000)]
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

13 years agoclarify this, apparently it is confusing :)
Chris Lattner [Mon, 23 May 2011 20:17:44 +0000 (20:17 +0000)]
clarify this, apparently it is confusing :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131916 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoChange StackDirection from StackGrowsUp to StackGrowsDown.
Akira Hatanaka [Mon, 23 May 2011 20:16:59 +0000 (20:16 +0000)]
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

13 years agoTest case for r131908.
Devang Patel [Mon, 23 May 2011 17:49:29 +0000 (17:49 +0000)]
Test case for r131908.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131909 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoPreserve debug info during iSel by keeping DanglingDebugInfoMap live until end of...
Devang Patel [Mon, 23 May 2011 17:44:13 +0000 (17:44 +0000)]
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

13 years agoWhile replacing all uses of a SDValue with another value, do not forget to transfer...
Devang Patel [Mon, 23 May 2011 17:35:08 +0000 (17:35 +0000)]
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

13 years agoClear list of instructions without DebugLoc.
Devang Patel [Mon, 23 May 2011 17:34:18 +0000 (17:34 +0000)]
Clear list of instructions without DebugLoc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131906 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoThe dragonegg option to disable LLVM optimizations changed.
Duncan Sands [Mon, 23 May 2011 16:50:29 +0000 (16:50 +0000)]
The dragonegg option to disable LLVM optimizations changed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131903 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoImplement .seh_stackalloc and .seh_pushframe parsing.
Charles Davis [Mon, 23 May 2011 16:43:09 +0000 (16:43 +0000)]
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

13 years agofix a really nasty basicaa mod/ref calculation bug that was causing miscompilation of
Chris Lattner [Mon, 23 May 2011 05:15:43 +0000 (05:15 +0000)]
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

13 years agoFix <rdar://problem/9476260> by having tail calls always generate 32-bit branches
Cameron Zwarich [Mon, 23 May 2011 01:57:17 +0000 (01:57 +0000)]
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

13 years agorearrange two transforms, since one subsumes the other. Make the shift-exactness
Chris Lattner [Mon, 23 May 2011 00:32:19 +0000 (00:32 +0000)]
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

13 years agoTransform any logical shift of a power of two into an exact/NUW shift when
Chris Lattner [Mon, 23 May 2011 00:21:50 +0000 (00:21 +0000)]
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

13 years agoUse a more efficient data structure for the "operand map". The number of
Bill Wendling [Mon, 23 May 2011 00:18:33 +0000 (00:18 +0000)]
Use a more efficient data structure for the "operand map". The number of
operands to an instruction aren't great, so an iterative search is fairly quick
and doesn't have the overhead of std::map.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131886 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agouse the valuetracking isPowerOfTwo function, which is more powerful than checking
Chris Lattner [Mon, 23 May 2011 00:09:55 +0000 (00:09 +0000)]
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

13 years agoTeach valuetracking that byval arguments with a specified alignment are
Chris Lattner [Mon, 23 May 2011 00:03:39 +0000 (00:03 +0000)]
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

13 years agoadd a helper method to get the byval alignment of an argument.
Chris Lattner [Sun, 22 May 2011 23:57:23 +0000 (23:57 +0000)]
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

13 years agoEliminate some temporary variables, and don't call getByValTypeAlignment
Chris Lattner [Sun, 22 May 2011 23:23:02 +0000 (23:23 +0000)]
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

13 years agoadd test from PR9164
Chris Lattner [Sun, 22 May 2011 22:35:34 +0000 (22:35 +0000)]
add test from PR9164

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131876 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agotestcase for PR9378
Chris Lattner [Sun, 22 May 2011 22:32:53 +0000 (22:32 +0000)]
testcase for PR9378

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131875 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoadd a missing alias to make us more bug compatible with gcc, PR9378
Chris Lattner [Sun, 22 May 2011 22:31:57 +0000 (22:31 +0000)]
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

13 years agodocument thiscall, PR9101
Chris Lattner [Sun, 22 May 2011 22:28:47 +0000 (22:28 +0000)]
document thiscall, PR9101

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131873 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoimplement PR9315, constant folding exp2 in terms of pow (since hosts without
Chris Lattner [Sun, 22 May 2011 22:22:35 +0000 (22:22 +0000)]
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

13 years agoRTABI chapter 4.3.4 specifies __eabi_mem* calls. Specifically, __eabi_memset accepts...
Renato Golin [Sun, 22 May 2011 21:41:23 +0000 (21:41 +0000)]
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

13 years agoAdd methods to parse the SEH directives to the COFFAsmParser. Implement some
Charles Davis [Sun, 22 May 2011 21:12:15 +0000 (21:12 +0000)]
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

13 years agoadd a note.
Chris Lattner [Sun, 22 May 2011 18:28:46 +0000 (18:28 +0000)]
add a note.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131863 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoadd some random notes.
Chris Lattner [Sun, 22 May 2011 18:26:48 +0000 (18:26 +0000)]
add some random notes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131862 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoTeach ValueTracking about x86 crc32 intrinsics.
Evan Cheng [Sun, 22 May 2011 18:25:30 +0000 (18:25 +0000)]
Teach ValueTracking about x86 crc32 intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131861 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoCarve out a place in instcombine to put transformations which work knowing that their
Chris Lattner [Sun, 22 May 2011 18:18:41 +0000 (18:18 +0000)]
Carve out a place in instcombine to put transformations which work knowing that their
result is non-zero.  Implement an example optimization (PR9814), which allows us to
transform:
  A / ((1 << B) >>u 2)
into:
  A >>u (B-2)

which we compile into:

_divu3:                                 ## @divu3
leal -2(%rsi), %ecx
shrl %cl, %edi
movl %edi, %eax
ret

instead of:

_divu3:                                 ## @divu3
movb %sil, %cl
movl $1, %esi
shll %cl, %esi
shrl $2, %esi
movl %edi, %eax
xorl %edx, %edx
divl %esi, %eax
ret

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131860 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoFix Bug 9386 - ARM disassembler failed to disassemble conditional bx
Johnny Chen [Sun, 22 May 2011 17:51:04 +0000 (17:51 +0000)]
Fix Bug 9386 - ARM disassembler failed to disassemble conditional bx

Modified the patch to .td file supplied by Jyun-Yan You.  Add a test case and
modified ARMDisassemblerCore.cpp a little bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131859 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoFix PR9815: I was trying to get out of "generating code and then
Chris Lattner [Sun, 22 May 2011 17:39:56 +0000 (17:39 +0000)]
Fix PR9815: I was trying to get out of "generating code and then
failing to form a memset, then having to delete it" but my approximation
isn't safe for self recurrent loops.  Instead of doign a hack, just
do it the right way.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131858 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoAdd a parameter to ConstantFoldTerminator() that callers can use to ask it to also...
Frits van Bommel [Sun, 22 May 2011 16:24:18 +0000 (16:24 +0000)]
Add a parameter to ConstantFoldTerminator() that callers can use to ask it to also clean up the condition of any conditional terminator it folds to be unconditional, if that turns the condition into dead code. This just means it calls RecursivelyDeleteTriviallyDeadInstructions() in strategic spots. It defaults to the old behavior.

I also changed -simplifycfg, -jump-threading and -codegenprepare to use this to produce slightly better code without any extra cleanup passes (AFAICT this was the only place in -simplifycfg where now-dead conditions of replaced terminators weren't being cleaned up). The only other user of this function is -sccp, but I didn't read that thoroughly enough to figure out whether it might be holding pointers to instructions that could be deleted by this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131855 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoanother typo
Chris Lattner [Sun, 22 May 2011 15:44:02 +0000 (15:44 +0000)]
another typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131854 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agofix comment typo
Chris Lattner [Sun, 22 May 2011 15:34:37 +0000 (15:34 +0000)]
fix comment typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131853 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoI missed a checking with my GVN change.
Chris Lattner [Sun, 22 May 2011 07:20:02 +0000 (07:20 +0000)]
I missed a checking with my GVN change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131851 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoinsertvalue takes a variable number of arguments, document this, fixing PR9935.
Chris Lattner [Sun, 22 May 2011 07:18:08 +0000 (07:18 +0000)]
insertvalue takes a variable number of arguments, document this, fixing PR9935.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131850 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agofix PR9856, an incorrectly conservative assertion: a global can be
Chris Lattner [Sun, 22 May 2011 07:15:13 +0000 (07:15 +0000)]
fix PR9856, an incorrectly conservative assertion: a global can be
"stored once" even if its address is compared.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131849 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agofix PR9841 by having GVN not process dead loads. This was
Chris Lattner [Sun, 22 May 2011 07:03:34 +0000 (07:03 +0000)]
fix PR9841 by having GVN not process dead loads.  This was
causing it to get into infinite loops when it would widen a
load (which can necessarily leave around dead loads).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131847 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoremove a trivial test, make some other tests less trivial.
Chris Lattner [Sun, 22 May 2011 07:02:43 +0000 (07:02 +0000)]
remove a trivial test, make some other tests less trivial.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131846 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agomake this test less trivial.
Chris Lattner [Sun, 22 May 2011 06:59:33 +0000 (06:59 +0000)]
make this test less trivial.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131845 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoinitialize and finalize function passes, pointed out by Cameron.
Chris Lattner [Sun, 22 May 2011 06:44:19 +0000 (06:44 +0000)]
initialize and finalize function passes, pointed out by Cameron.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131843 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agofix a bug for hosts without round, PR8893.
Chris Lattner [Sun, 22 May 2011 06:03:53 +0000 (06:03 +0000)]
fix a bug for hosts without round, PR8893.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131842 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agomove PR9408 here.
Chris Lattner [Sun, 22 May 2011 05:45:06 +0000 (05:45 +0000)]
move PR9408 here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131841 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoCommit test change, forgotten as part of r131838.
Nick Lewycky [Sun, 22 May 2011 05:31:47 +0000 (05:31 +0000)]
Commit test change, forgotten as part of r131838.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131839 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoTeach the inliner to emit llvm.lifetime.start/end, to scope the local variables
Nick Lewycky [Sun, 22 May 2011 05:22:10 +0000 (05:22 +0000)]
Teach the inliner to emit llvm.lifetime.start/end, to scope the local variables
of the inlinee to the code representing the original function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131838 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agoswitch to using a smallvector to avoid allocations for most normal size instructions.
Chris Lattner [Sun, 22 May 2011 04:53:24 +0000 (04:53 +0000)]
switch to using a smallvector to avoid allocations for most normal size instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131837 91177308-0d34-0410-b5e6-96231b3b80d8

13 years agotidy some things up.
Chris Lattner [Sun, 22 May 2011 04:52:24 +0000 (04:52 +0000)]
tidy some things up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131836 91177308-0d34-0410-b5e6-96231b3b80d8