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Author SHA1 Message Date
Dan Gohman
49590bf7cd Fix whitespace to be more consistent with AsmPrinter's style. 
llvm-svn: 104962
 2010-05-28 17:07:41 +00:00
Jakob Stoklund Olesen
f58cd7c838 Fix more tests that depended on the default register allocator choice. 
llvm-svn: 104961
 2010-05-28 17:06:30 +00:00
Dan Gohman
6e97d8955f Minor code simplification. 
llvm-svn: 104959
 2010-05-28 16:50:23 +00:00
Dan Gohman
1c7843bad9 Fix a redundant-return warning. 
llvm-svn: 104958
 2010-05-28 16:50:01 +00:00
Dan Gohman
9a50a9215c Detect self-referential values. 
llvm-svn: 104957
 2010-05-28 16:45:33 +00:00
Dan Gohman
0108e13d6c Remove this va_arg test, which is no longer applicable. 
llvm-svn: 104956
 2010-05-28 16:44:04 +00:00
Stuart Hastings
369d3391d8 Revert 104841, 104842, 104876 due to buildbot failures. Radar 7424645. 
llvm-svn: 104953
 2010-05-28 16:41:07 +00:00
Dan Gohman
8570c1a249 Eli pointed out that va_arg instruction result values don't 
reference the stack.

llvm-svn: 104951
 2010-05-28 16:34:49 +00:00
Dan Gohman
7981165281 Teach lint how to look through simple store+load pairs and other 
effective no-op constructs, to make it more effective on
unoptimized IR.

llvm-svn: 104950
 2010-05-28 16:21:24 +00:00
Dan Gohman
0d7d3faf8e Move FindAvailableLoadedValue isSafeToLoadUnconditionally out of 
lib/Transforms/Utils and into lib/Analysis so that Analysis passes
can use them.

llvm-svn: 104949
 2010-05-28 16:19:17 +00:00
Dan Gohman
5ba21692e6 ConstantFoldConstantExpression can theoretically return null. 
llvm-svn: 104948
 2010-05-28 16:12:08 +00:00
Dan Gohman
f7bbeb021a Fix a comment. 
llvm-svn: 104947
 2010-05-28 16:06:09 +00:00
Dan Gohman
22d22caaed Teach instcombine to promote alloca array sizes. 
llvm-svn: 104945
 2010-05-28 15:09:00 +00:00
Dan Gohman
bab79afa29 Add a testcase for getelementptr index promotion. 
llvm-svn: 104944
 2010-05-28 15:07:59 +00:00
Dan Gohman
a6c568fa77 Add a lint check for returning the address of stack memory. 
llvm-svn: 104936
 2010-05-28 04:33:42 +00:00
Dan Gohman
082d391a46 Fix instcombine's handling of alloca to accept non-i32 types. 
llvm-svn: 104935
 2010-05-28 04:33:04 +00:00
Nate Begeman
eb1028094c Comment out some code in prep for actual .td file checkpoint. 
llvm-svn: 104927
 2010-05-28 02:19:08 +00:00
Dan Gohman
598aa87ff1 Bitcode support for allocas with arbitrary array size types. 
llvm-svn: 104915
 2010-05-28 01:38:28 +00:00
Devang Patel
46e30f80bf Fix typo. 
llvm-svn: 104914
 2010-05-28 01:29:50 +00:00
Devang Patel
d7be13168c Fix typo. 
llvm-svn: 104913
 2010-05-28 01:17:51 +00:00
Eli Friedman
f73aa6f0dc Fix build breakage. 
llvm-svn: 104912
 2010-05-28 01:15:28 +00:00
Dan Gohman
bcee12027f Eliminate the restriction that the array size in an alloca must be i32. 
This will help reduce the amount of casting required on 64-bit targets.

llvm-svn: 104911
 2010-05-28 01:14:11 +00:00
Nate Begeman
afef35118d Add support to tablegen for auto-generating arm_neon.h from a tablegen description 
of the intrinsics.  The goal is to auto-generate both support for GCC-style (vector)
and ARM-style (struct of vector) intrinsics.

This is work in progress, but will be completed soon.

llvm-svn: 104910
 2010-05-28 01:08:32 +00:00
Bob Wilson
e2ff075e4c Add the cc_out operand for t2RSBrs instructions. I missed this when I changed 
the instruction class for t2RSB to add that operand in svn r104582.
Radar 8033757.

llvm-svn: 104907
 2010-05-28 00:27:15 +00:00
Jakob Stoklund Olesen
d76041cf58 Add a -regalloc=default option that chooses a register allocator based on the -O 
optimization level.

This only really affects llc for now because both the llvm-gcc and clang front
ends override the default register allocator. I intend to remove that code later.

llvm-svn: 104904
 2010-05-27 23:57:25 +00:00
Jakob Stoklund Olesen
9f9fed5a7c Remove ancient prototype. 
llvm-svn: 104903
 2010-05-27 23:57:19 +00:00
Jim Grosbach
b004e2cf0f Update the saved stack pointer in the sjlj function context following either 
an alloca() or an llvm.stackrestore(). rdar://8031573

llvm-svn: 104900
 2010-05-27 23:49:24 +00:00
Evan Cheng
e6fe0bc9cc Use report_fatal_error, not llvm_unreachable. 
llvm-svn: 104899
 2010-05-27 23:45:31 +00:00
Jim Grosbach
d788f9b580 back out 104862/104869. Can reuse stacksave after all. Very cool. 
llvm-svn: 104897
 2010-05-27 23:11:57 +00:00
Dan Gohman
b049874698 Factor out the handler work from SignalHandler into a helper function, 
and change llvm::sys::RunInterruptHandlers to call that function directly
instead of calling SignalHandler, because the rest of SignalHandler
invokes side effects which aren't appropriate, including raising the
signal.

llvm-svn: 104896
 2010-05-27 23:11:55 +00:00
Evan Cheng
68be5ab54e llvm can't correctly support 'H', 'Q' and 'R' modifiers. Just mark it an error. 
llvm-svn: 104891
 2010-05-27 22:08:38 +00:00
Kevin Enderby
999057d413 MC/X86: Add aliases for Jcc variants. 
llvm-svn: 104890
 2010-05-27 21:33:19 +00:00
Dan Gohman
6163340daf Eliminate some unnessary Path::exists() calls. 
llvm-svn: 104888
 2010-05-27 20:51:54 +00:00
Dan Gohman
92ee877dcd Make ParseIRFile and getLazyIRFileModule incoporate the underlying 
error message string into their own error message string, so that
the information isn't lost.

llvm-svn: 104887
 2010-05-27 20:47:38 +00:00
Dan Gohman
3acc676fcd Don't flush the raw_ostream in llvm::WriteBitcodeToFile; it's at 
the wrong level. Clients which need to leave the stream open but
which still require the bitcode bits to be on disk should call
flush themselves.

llvm-svn: 104885
 2010-05-27 20:26:51 +00:00
Devang Patel
8d4eb26f24 Do not drop location info for inlined function args. 
llvm-svn: 104884
 2010-05-27 20:25:04 +00:00
Bob Wilson
3424b5dab3 Fix some bad fall-throughs in a switch statement. Both the 'Q' and 'R' cases 
should fall through to the 'H' case, but instead 'Q' was falling through to 'R'
so that it would do the wrong thing for a big-endian ARM target.

llvm-svn: 104883
 2010-05-27 20:23:42 +00:00
Dan Gohman
35206e98e6 When handling raw_ostream errors manually, use clear_error() so that 
raw_ostream doesn't try to do its own error handling.

Also, close the raw_ostream before checking for errors so that any
errors that occur during closing are caught by the manual check.

llvm-svn: 104882
 2010-05-27 20:19:47 +00:00
Dan Gohman
dae85a0de0 When handling raw_ostream errors manually, use clear_error() so that 
raw_ostream doesn't try to do its own error handling.

llvm-svn: 104881
 2010-05-27 20:17:28 +00:00
Dale Johannesen
b5a636f86e Mark some math lib intrinsic nodes Legal on SSE4.1. 
No functional effect as these nodes are not generated yet.

llvm-svn: 104879
 2010-05-27 20:12:41 +00:00
Dan Gohman
d13e45d0ec Don't special-case stdout in llvm::WriteBitcodeToFile; just consider 
it to be the caller's responsibility to provide a stream in binary
mode. This fixes a layering violation and avoids an outs() call.

llvm-svn: 104878
 2010-05-27 20:06:51 +00:00
Stuart Hastings
be773f9253 Adjust test case for lexical block pruning. Follow-on to r104842 and Radar 7424645. 
llvm-svn: 104876
 2010-05-27 19:57:51 +00:00
Dan Gohman
5dc7fed6ab Don't create an output stream when output is disabled. 
llvm-svn: 104875
 2010-05-27 19:52:20 +00:00
Dan Gohman
bf1e648394 Simplify raw_ostream usage. 
llvm-svn: 104874
 2010-05-27 19:48:08 +00:00
Dan Gohman
bf0dac1735 Avoid calling outs() and fouts() when the stream isn't really needed. 
llvm-svn: 104873
 2010-05-27 19:47:36 +00:00
Devang Patel
79c9e03097 Let's try one more time to match patterns. 
The goal is to match following 3 lines. In otherwords, a temp. label between to DEBUG_VALUE comments.
        ;DEBUG_VALUE: bar:x <- undef   ## 2010-01-18-Inlined-Debug.c:7
Ltmp1:
        ;DEBUG_VALUE: foo:__x <- undef ## 2010-01-18-Inlined-Debug.c:5

llvm-svn: 104872
 2010-05-27 19:46:38 +00:00
Duncan Sands
32d3986765 Teach instCombine to remove malloc+free if malloc's only uses are comparisons 
to null.  Patch by Matti Niemenmaa.

llvm-svn: 104871
 2010-05-27 19:09:06 +00:00
Jim Grosbach
0ff473d68a hook ISD::STACKADDR to an intrinsic 
llvm-svn: 104869
 2010-05-27 18:52:11 +00:00
Dan Gohman
ba64544096 FastISel doesn't yet handle callee-pop functions. 
To support this, move IsCalleePop from X86ISelLowering to X86Subtarget.

llvm-svn: 104866
 2010-05-27 18:43:40 +00:00
Jim Grosbach
c2c7753f15 add ISD::STACKADDR to get the current stack pointer. Will be used by sjlj EH 
to update the jmpbuf in the presence of VLAs.

llvm-svn: 104862
 2010-05-27 18:23:48 +00:00