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335fcad6bc
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47283 Commits

Author SHA1 Message Date
Evan Cheng
335fcad6bc Simplify r132022 based on Cameron's feedback. 
llvm-svn: 132071
 2011-05-25 18:17:13 +00:00
Akira Hatanaka
ae2e2d557a Update MaxCallFrameSize regardless of the relocation model selected. 
llvm-svn: 132070
 2011-05-25 18:08:32 +00:00
Akira Hatanaka
953e0a3c45 Change initial value of MaxCallFrameSize. MipsFI::getMaxCallFrameSize() should 
return 0 if there are no function calls made. 

llvm-svn: 132065
 2011-05-25 17:52:48 +00:00
Akira Hatanaka
33415b8179 Coding style fixes. Added comments. 
llvm-svn: 132063
 2011-05-25 17:32:06 +00:00
Francois Pichet
b2042fbfe2 Remove unused OpcodeMask enumerator. 
llvm-svn: 132062
 2011-05-25 17:02:53 +00:00
Francois Pichet
fab3c58733 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.

llvm-svn: 132057
 2011-05-25 15:58:10 +00:00
Charles Davis
6b67ee5130 Add tests for .seh_savereg and .seh_savexmm parsing. Once again, fix the 
buggy methods that parse these directives.

llvm-svn: 132045
 2011-05-25 04:51:25 +00:00
Cameron Zwarich
5c410bd5f6 Restore an accidentally removed comment. 
llvm-svn: 132044
 2011-05-25 04:48:17 +00:00
Cameron Zwarich
4f47b296d8 Move some code to a more logical place. 
llvm-svn: 132043
 2011-05-25 04:45:29 +00:00
Cameron Zwarich
beae5f20e8 Make tTAILJMPr/tTAILJMPrND emit a tBX without a preceding MOV of PC to LR. This 
fixes <rdar://problem/9495913>

llvm-svn: 132042
 2011-05-25 04:45:27 +00:00
Cameron Zwarich
5a32e53e3f 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>

llvm-svn: 132041
 2011-05-25 04:45:23 +00:00
Cameron Zwarich
08753a605b Rename tBX_Rm to tBX. 
llvm-svn: 132040
 2011-05-25 04:45:20 +00:00
Cameron Zwarich
d9707488bb Rename the existing tBX/tBXr9 instructions to tBX_CALL/tBXr9_CALL to better 
reflect their actual meaning and match the ARM instructions.

llvm-svn: 132039
 2011-05-25 04:45:14 +00:00
Andrew Trick
0aa40b2f8f indvars: fixed IV cloning in -disable-iv-rewrite mode with associated 
cleanup and overdue test cases.

llvm-svn: 132038
 2011-05-25 04:42:22 +00:00
Charles Davis
14a32a9608 Add a test for .seh_pushframe parsing. Fix the bug exposed by it (and another 
one I found by inspection).

llvm-svn: 132037
 2011-05-25 04:08:15 +00:00
Rafael Espindola
70213c7c5f 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.

llvm-svn: 132033
 2011-05-25 03:44:17 +00:00
Akira Hatanaka
a5b11ee449 Fix lowering of DYNAMIC_STACKALLOC nodes. 
llvm-svn: 132030
 2011-05-25 02:20:00 +00:00
Charles Davis
967ee6a30b 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.

llvm-svn: 132028
 2011-05-25 01:33:42 +00:00
Bruno Cardoso Lopes
3a4aae57f4 Fix PR9762 
Enable the parsing of the operand "cpsr_all" for the ARM msr instruction

llvm-svn: 132026
 2011-05-25 00:35:03 +00:00
Evan Cheng
d359a7cab3 Forgot dyn_cast check. 
llvm-svn: 132025
 2011-05-24 23:47:50 +00:00
Eric Christopher
4f193f9555 Implement the arm 'L' asm modifier. 
Part of rdar://9119939

llvm-svn: 132024
 2011-05-24 23:27:13 +00:00
Eric Christopher
a6d7ccb170 Implement the immediate part of the 'B' modifier. 
Part of rdar://9119939

llvm-svn: 132023
 2011-05-24 23:15:43 +00:00
Evan Cheng
9466b36c02 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

llvm-svn: 132022
 2011-05-24 23:12:57 +00:00
Eric Christopher
4783e5e316 Add more unimplemented asm modifiers and some documentation of what they 
do.

Part of rdar://9119939.

llvm-svn: 132015
 2011-05-24 22:27:43 +00:00
Eric Christopher
03965fa3b6 Add support for the arm 'y' asm modifier. 
Fixes part of rdar://9444657

llvm-svn: 132011
 2011-05-24 22:10:34 +00:00
Charles Davis
d943eb05ed Test basic SEH directive-parsing functionality. Fix a latent bug exposed by 
this test.

llvm-svn: 132004
 2011-05-24 21:22:53 +00:00
Akira Hatanaka
161f211628 Enable printing of immediates that do not fit in 16-bit. .cprestore can have 
offsets that are larger than 0x10000.

llvm-svn: 132003
 2011-05-24 21:22:21 +00:00
Eli Friedman
654dd382bc 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.

llvm-svn: 131994
 2011-05-24 20:22:24 +00:00
Charles Davis
1084ac5bb1 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.

llvm-svn: 131992
 2011-05-24 20:06:30 +00:00
Akira Hatanaka
f4c853e3e4 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.

llvm-svn: 131986
 2011-05-24 19:18:33 +00:00
Eli Friedman
5ae1b40f55 Make instcombine O(N) instead of O(N^2) in code where the same simplifiable constant is used many times. 
Part of rdar://9471075.

llvm-svn: 131979
 2011-05-24 18:52:07 +00:00
Devang Patel
0b44360610 Remove dead code. 
llvm-svn: 131974
 2011-05-24 18:27:52 +00:00
Dan Gohman
5b2ad67709 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.

llvm-svn: 131971
 2011-05-24 18:24:08 +00:00
Charles Davis
3ac82d9bb2 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).

llvm-svn: 131969
 2011-05-24 16:57:53 +00:00
Cameron Zwarich
e425894eaf Clean up the lazy initialization of DIBuilder a bit. 
llvm-svn: 131956
 2011-05-24 06:00:08 +00:00
Cameron Zwarich
462b5db500 Make LoadAndStorePromoter preserve debug info and create llvm.dbg.values when 
promoting allocas to SSA variables. Fixes <rdar://problem/9479036>.

llvm-svn: 131953
 2011-05-24 03:10:43 +00:00
Rafael Espindola
8e44a53856 Explain FIXME. 
llvm-svn: 131952
 2011-05-24 03:10:31 +00:00
Rafael Espindola
176fe6a0e0 Fix the defaults for .eh_frame. We were marking it as writable. 
llvm-svn: 131951
 2011-05-24 02:50:20 +00:00
Evan Cheng
b5950697e8 - 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

llvm-svn: 131948
 2011-05-24 01:48:22 +00:00
Akira Hatanaka
d0694fb652 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.

llvm-svn: 131942
 2011-05-24 00:23:52 +00:00
Devang Patel
5bce258c3d Fix debug info for blocks' variable. 
llvm-svn: 131940
 2011-05-24 00:22:25 +00:00
Devang Patel
8a90970a54 Remove unnecessary comment. 
llvm-svn: 131936
 2011-05-23 23:16:14 +00:00
Akira Hatanaka
e2e584df0e Expand f64 FPOW. 
llvm-svn: 131928
 2011-05-23 22:23:58 +00:00
Akira Hatanaka
5b696387f7 Add pattern for double-to-integer conversion. Patch by Sasa Stankovic. 
llvm-svn: 131927
 2011-05-23 22:16:43 +00:00
Devang Patel
e829168e05 Revert 121907 (it causes llc crash) and apply original patch from PR9817. 
llvm-svn: 131926
 2011-05-23 22:04:42 +00:00
Akira Hatanaka
daa4afec69 Fixes related to coding style. 
llvm-svn: 131922
 2011-05-23 21:13:59 +00:00
Dan Gohman
e6a4a2aa6f When checking for signed multiplication overflow, watch out for INT_MIN and -1. 
This fixes PR9845.

llvm-svn: 131919
 2011-05-23 21:07:39 +00:00
Jim Grosbach
76f8f3d479 Propagate error correctly in the MC Asm parser for leading '$' expressions. 
llvm-svn: 131918
 2011-05-23 20:36:04 +00:00
Akira Hatanaka
123ee4388c Fix MipsAsmPrinter::printSavedRegsBitmaskChange. Remove functions and variables 
in MipsFunctionInfo that are no longer used.

llvm-svn: 131917
 2011-05-23 20:34:30 +00:00
Chris Lattner
f58c2c02b5 clarify this, apparently it is confusing :) 
llvm-svn: 131916
 2011-05-23 20:17:44 +00:00