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27425 Commits

Author SHA1 Message Date
Devang Patel
9abfbc2e14 Skip DbgInfoIntrinsic. 
llvm-svn: 66244
 2009-03-06 02:59:27 +00:00
Dan Gohman
42049dafd7 Fix ScheduleDAGRRList::CopyAndMoveSuccessors' handling of nodes 
with multiple chain operands. This can occur when the scheduler
has added chain operands to a node that already has a chain
operand, in order to handle physical register dependencies.

This fixes an llvm-gcc bootstrap failure on x86-64 introduced
in r66058.

llvm-svn: 66240
 2009-03-06 02:23:01 +00:00
Dale Johannesen
e07f7b0e3d Don't assign rank numbers to debug intrinsic "calls". 
This is needed so debug info doesn't change codegen.

llvm-svn: 66235
 2009-03-06 01:41:59 +00:00
Bill Wendling
5ddde1a24c When we split a basic block, there's a default branch to the newly created BB. 
Delete this default branch, because we're going to generate our own.

llvm-svn: 66234
 2009-03-06 01:41:15 +00:00
Devang Patel
c751e83e2b Revert 66224. 
llvm-svn: 66233
 2009-03-06 01:39:36 +00:00
Devang Patel
205f80b2f3 Revert rev. 66167. 
We are still not out of woods yet.

llvm-svn: 66232
 2009-03-06 01:37:41 +00:00
Evan Cheng
918955bbc4 SRThreshold is meant to be inclusive. 
llvm-svn: 66227
 2009-03-06 00:56:43 +00:00
Dale Johannesen
83c13c2ace Tweak the check for promotable alloca's to handle 
debug intrinsics correctly.

llvm-svn: 66225
 2009-03-06 00:42:50 +00:00
Devang Patel
f815005dfb Do not let debug info prevert globalopt from shriking a global vars to boolean. 
llvm-svn: 66224
 2009-03-06 00:21:00 +00:00
Devang Patel
28a28a2588 Add "check/remove dbg var" helper routines. 
llvm-svn: 66223
 2009-03-06 00:19:37 +00:00
Dan Gohman
f9599e6c5f Don't use plain INC32 and DEC32 on x86-64; it needs 
INC64_32r and INC64_16r, because these instructions are encoded
differently on x86-64. This fixes JIT regressions on x86-64 in
kimwitu++ and others.

llvm-svn: 66207
 2009-03-05 21:32:23 +00:00
Dan Gohman
1e9db7c1a1 When creating X86ISD::INC and X86ISD::DEC nodes, only add one operand. 
The extra operand didn't appear to cause any trouble, but it was
erroneous regardless.

llvm-svn: 66206
 2009-03-05 21:29:28 +00:00
Dan Gohman
f6f684b206 Fix the "test" optimization to recognize "dec" as an add of 
negative one, as subtracts of immediates are canonicalized
to adds.

llvm-svn: 66180
 2009-03-05 19:32:48 +00:00
Chris Lattner
0743280d7a move some code to gracefully handle the case when a handler crashes. 
llvm-svn: 66171
 2009-03-05 18:22:14 +00:00
Devang Patel
34889f5bed GlobalOpt only process non constant local GVs while optimizing global vars. 
If non constant local GV named A is used by a constant local GV named B (e.g. llvm.dbg.variable) and B is not used by anyone else then eliminate A as well as B.

In other words, debug info should not interfere in removal of unused GV.
--This life, and those below, will be ignored--

M    test/Transforms/GlobalOpt/2009-03-03-dbg.ll
M    lib/Transforms/IPO/GlobalOpt.cpp

llvm-svn: 66167
 2009-03-05 18:12:02 +00:00
Duncan Sands
e53256c66c Add missing file. 
llvm-svn: 66160
 2009-03-05 09:19:13 +00:00
Owen Anderson
39e5f053c4 (Hopefully) silence a warning. 
llvm-svn: 66158
 2009-03-05 08:23:20 +00:00
Owen Anderson
744e33c12b Be more careful about choosing restore points when doing restore folding. This fixes some subtle miscompilations. 
llvm-svn: 66147
 2009-03-05 07:19:18 +00:00
Chris Lattner
c4f40d1f53 Daniel wanted the stack printed upside down. Perhaps he 
feels a kinship to machine stacks that grow down.  Now we get
stuff like this:

Stack dump:
0.	Program arguments: clang clang_crash_Iw2Osj.mi 
1.	/Developer/SDKs/MacOSX10.5.sdk/usr/lib/gcc/i686-apple-darwin9/4.0.1/include/xmmintrin.h:624:1: parsing function body '_mm_cvtpi16_ps'
2.	/Developer/SDKs/MacOSX10.5.sdk/usr/lib/gcc/i686-apple-darwin9/4.0.1/include/xmmintrin.h:624:1: in compound statement ('{}')
Abort

llvm-svn: 66145
 2009-03-05 07:03:49 +00:00
Chris Lattner
982c3491ff indicate what the program args line is. 
llvm-svn: 66144
 2009-03-05 06:51:42 +00:00
Chris Lattner
7e98d87d98 switch this message back to only being in -debug mode. 
llvm-svn: 66143
 2009-03-05 06:48:16 +00:00
Nate Begeman
ec80b49533 When allocating stubs, keep track of which Functions are referencing the stub. 
This invalidates the stubs in the resolver map when they are no longer referenced,
and should the JIT memory manager ever pick up a deallocateStub interface, the
JIT could reclaim the memory for unused stubs as well.

llvm-svn: 66141
 2009-03-05 06:34:37 +00:00
Evan Cheng
24c138a1cd Do not split edges to EH landing pads. It will cause code size explosion. 
llvm-svn: 66140
 2009-03-05 06:31:26 +00:00
Evan Cheng
90d25a92c2 Fix how livein live intervals are handled. Previously it could end at MBB start. Sorry, no small test case possible. 
llvm-svn: 66129
 2009-03-05 03:34:26 +00:00
Dale Johannesen
a73a4ee680 Fix another case where debug info was affecting 
codegen.  I convinced myself it was OK to skip all
pointer bitcasts here too.

llvm-svn: 66122
 2009-03-05 02:06:48 +00:00
Zhou Sheng
cfe68231e7 Ignore the debug info intrinsics when looking for dependency through basic block. 
llvm-svn: 66119
 2009-03-05 01:45:43 +00:00
Bill Wendling
edc936acb4 Add comment to emphasize that the while body is empty. 
llvm-svn: 66115
 2009-03-05 01:08:35 +00:00
Dale Johannesen
428972ecad Fix another case where a dbg.declare meant something 
had 2 uses instead of 1.

llvm-svn: 66112
 2009-03-05 00:39:02 +00:00
Bill Wendling
2eef9340a8 Temporarily revert r65994. It was causing rdar://6646455. 
llvm-svn: 66083
 2009-03-04 22:02:09 +00:00
Chris Lattner
84424b02bb add some helper classes for building light-weight symbolic stack traces 
that get printed when a program crashes.  This is the first step of many.

llvm-svn: 66076
 2009-03-04 21:40:23 +00:00
Dale Johannesen
448293322b Re-commit 65975 and a fix for the problem that 
was causing llvm-gcc to fail to build.  I've
verified it bootstraps now; good enough for me.

llvm-svn: 66073
 2009-03-04 21:24:04 +00:00
Chris Lattner
faf39c40d4 Add a new 'AddSignalHandler' function to Signals.h that allows 
arbitrary functions to be run when a crash happens.  Delete 
RemoveDirectoryOnSignal as it is dead and has never had clients.

Change PrintStackTraceOnErrorSignal to be implemented in terms of
AddSignalHandler.

I updated the Win32 versions of these APIs, but can't test them.
If there are any problems, I'd be happy to fix them as well.

llvm-svn: 66072
 2009-03-04 21:21:36 +00:00
Dan Gohman
5eb18fa0bf Fix this comment. 
llvm-svn: 66065
 2009-03-04 20:50:23 +00:00
Dan Gohman
70fd52251c Add an assertion for a condition that's always true, and not 
immediately obvious.

llvm-svn: 66062
 2009-03-04 20:49:01 +00:00
Dan Gohman
31fb085c2e Re-apply 66008, now that the unfoldMemoryOperand bug is fixed. 
llvm-svn: 66058
 2009-03-04 19:44:21 +00:00
Dan Gohman
f41e54c5af Correct this comment. 
llvm-svn: 66057
 2009-03-04 19:24:25 +00:00
Dan Gohman
04453ca36c When using MachineInstr operand indices on SDNodes, the number 
of MachineInstr def operands must be subtracted out. This bug
was uncovered by the recent x86 EFLAGS optimization. Before
that, the only instructions that ever needed unfolding were
things like CMP32rm, where NumDefs is zero.

llvm-svn: 66056
 2009-03-04 19:23:38 +00:00
Chris Lattner
9cfff838eb complete comment. 
llvm-svn: 66055
 2009-03-04 19:23:25 +00:00
Chris Lattner
a0d9cc96fe this wasn't intended to be committed. 
llvm-svn: 66054
 2009-03-04 19:22:30 +00:00
Chris Lattner
5051e7afde Fix PR3720 by properly propagating alignment information from memcpy/memmove 
onto element accesses.

llvm-svn: 66053
 2009-03-04 19:20:50 +00:00
Nate Begeman
511a668cd1 Fix a thinko in the JIT where the address of a GV was only recorded in the map 
on failure to resolve it.
Do not abort on failure to resolve an external symbol when using dlsym stubs,
  since the symbol may not be in the JIT's address space.  Just use 0.
Allow dlsym stubs to differentiate between GlobalVars and Functions.

llvm-svn: 66050
 2009-03-04 19:10:38 +00:00
Bob Wilson
b75225556d Fix BuildVectorSDNode::isConstantSplat to handle one-element vectors. 
It is an error to call APInt::zext with a size that is equal to the value's
current size, so use zextOrTrunc instead.

llvm-svn: 66039
 2009-03-04 17:47:01 +00:00
Owen Anderson
fb7f64ea0d Add a restore folder, which shaves a dozen or so machineinstrs off oggenc. Update a testcase to check this. 
llvm-svn: 66029
 2009-03-04 08:52:31 +00:00
Evan Cheng
7d9019d0f3 Fix PR3666: isel calls to constant addresses. 
llvm-svn: 66024
 2009-03-04 06:48:53 +00:00
Eli Friedman
1bed40b86a PR3686: make the legalizer handle bitcast from i80 to x86 long double. 
llvm-svn: 66021
 2009-03-04 06:23:34 +00:00
Dan Gohman
6831e2c2a6 Revert r66004 for now; it's causing a variety of test failures. 
llvm-svn: 66008
 2009-03-04 03:54:19 +00:00
Dan Gohman
c6c669cc1e Teach the x86 backend to eliminate "test" instructions by using the EFLAGS 
result from add, sub, inc, and dec instructions in simple cases.

llvm-svn: 66004
 2009-03-04 02:33:24 +00:00
Dale Johannesen
8ca4d24371 Revert unintended commmit. 
llvm-svn: 66001
 2009-03-04 02:09:48 +00:00
Dale Johannesen
c6bfdb8253 Skip ptr-to-ptr bitcasts when counting in another case. 
llvm-svn: 66000
 2009-03-04 02:06:53 +00:00
Dale Johannesen
e184480072 Always skip ptr-to-ptr bitcasts when counting, 
per Chris' suggestion.  Slightly faster.

llvm-svn: 65999
 2009-03-04 01:53:05 +00:00