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Author SHA1 Message Date
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
Dan Gohman
f2c4a47575 Update documentation: -basicaa does chaining these days. 
llvm-svn: 132010
 2011-05-24 22:01:32 +00:00
Akira Hatanaka
4ef318f1e1 Test case for r132003. 
llvm-svn: 132005
 2011-05-24 21:28:18 +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
21f003a8d4 Fix test case. 
llvm-svn: 131988
 2011-05-24 19:37:15 +00:00
Akira Hatanaka
98951fd8b5 Revision 131986 test case. 
llvm-svn: 131987
 2011-05-24 19:29:37 +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
Cameron Zwarich
4b2cea31e8 Fix "make check" in Release by removing debug-only options from an 'opt' invocation. 
llvm-svn: 131972
 2011-05-24 18:26:09 +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
Jakob Stoklund Olesen
222e83f44b Work around code generation bug in Visual Studio 2010. 
See http://llvm.org/pr9976 for details.

llvm-svn: 131954
 2011-05-24 03:20:56 +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
Evan Cheng
e6e324363e Remove dead option. 
llvm-svn: 131947
 2011-05-24 01:43:38 +00:00
Andrew Trick
f3efa64b97 FileCheck-ize a couple of IV unit tests. 
llvm-svn: 131946
 2011-05-24 01:02:49 +00:00
Rafael Espindola
4e20425b24 Fix cmake dependencies. 
llvm-svn: 131943
 2011-05-24 00:58:06 +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
Andrew Trick
f346cb419d Test case for r130799 - indvars: Added canExpandBackEdgeTakenCount. 
llvm-svn: 131939
 2011-05-24 00:17:53 +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
3dd68e8eca Document llvm.exp and llvm.pow. 
llvm-svn: 131921
 2011-05-23 21:13:03 +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
Akira Hatanaka
6ddbe02441 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.

llvm-svn: 131915
 2011-05-23 20:16:59 +00:00
Devang Patel
ac809854cc Test case for r131908. 
llvm-svn: 131909
 2011-05-23 17:49:29 +00:00
Devang Patel
37ab34a49f Preserve debug info during iSel by keeping DanglingDebugInfoMap live until end of function. 
Patch by Micah Villmow

llvm-svn: 131908
 2011-05-23 17:44:13 +00:00
Devang Patel
5920de5c8c While replacing all uses of a SDValue with another value, do not forget to transfer SDDbgValue. 
llvm-svn: 131907
 2011-05-23 17:35:08 +00:00
Devang Patel
791327d23b Clear list of instructions without DebugLoc. 
llvm-svn: 131906
 2011-05-23 17:34:18 +00:00
Duncan Sands
9f313fa916 The dragonegg option to disable LLVM optimizations changed. 
llvm-svn: 131903
 2011-05-23 16:50:29 +00:00
Charles Davis
b38506e3a7 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.

llvm-svn: 131899
 2011-05-23 16:43:09 +00:00
Chris Lattner
c64a4d1170 fix a really nasty basicaa mod/ref calculation bug that was causing miscompilation of 
UnitTests/ObjC/messages-2.m with the recent optimizer improvements.

llvm-svn: 131897
 2011-05-23 05:15:43 +00:00
Cameron Zwarich
5a416bda73 Fix <rdar://problem/9476260> by having tail calls always generate 32-bit branches 
in Darwin Thumb2 code. Tail calls are already disabled on Thumb1.

llvm-svn: 131894
 2011-05-23 01:57:17 +00:00
Chris Lattner
bee56202ba rearrange two transforms, since one subsumes the other. Make the shift-exactness 
xform recurse.

llvm-svn: 131888
 2011-05-23 00:32:19 +00:00
Chris Lattner
ec35f49b3e Transform any logical shift of a power of two into an exact/NUW shift when 
in a known-non-zero context.

llvm-svn: 131887
 2011-05-23 00:21:50 +00:00
Bill Wendling
6f30676150 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.

llvm-svn: 131886
 2011-05-23 00:18:33 +00:00
Chris Lattner
498f516575 use the valuetracking isPowerOfTwo function, which is more powerful than checking 
for a constant directly.  Thanks to Duncan for pointing this out.

llvm-svn: 131885
 2011-05-23 00:09:55 +00:00