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26869 Commits

Author SHA1 Message Date
Bill Wendling
4d923185fc Propagate debug loc info in SimplifyNodeWithTwoResults. 
llvm-svn: 63376
 2009-01-30 03:08:40 +00:00
Bill Wendling
7067a571ce Propagate debug loc info for MULHS. 
llvm-svn: 63375
 2009-01-30 03:00:18 +00:00
Bill Wendling
031d7dcfe2 Propagate debug loc info for SREM and UREM. 
llvm-svn: 63374
 2009-01-30 02:57:00 +00:00
Bill Wendling
f4506379ae Propagate debug loc info for UDIV. 
llvm-svn: 63373
 2009-01-30 02:55:25 +00:00
Bill Wendling
532bb33a10 Propagate debug loc info for SDIV. 
llvm-svn: 63372
 2009-01-30 02:52:17 +00:00
Bill Wendling
577589aa4a Forgot to propagate debug loc info here. 
llvm-svn: 63371
 2009-01-30 02:49:26 +00:00
Dan Gohman
50283ce80b Fix a post-RA scheduling dependency bug. 
If a MachineInstr doesn't have a memoperand but has an opcode that
is known to load or store, assume its memory reference may alias
*anything*, including stack slots which the compiler completely
controls.

To partially compensate for this, teach the ScheduleDAG building
code to do basic getUnderlyingValue analysis. This greatly
reduces the number of instructions that require restrictive
dependencies. This code will need to be revisited when we start
doing real alias analysis, but it should suffice for now.

llvm-svn: 63370
 2009-01-30 02:49:14 +00:00
Bill Wendling
ff10c16660 Propagate debug loc info for MUL. 
llvm-svn: 63369
 2009-01-30 02:45:56 +00:00
Bill Wendling
a7791b0e4e Propagate debug loc info in SUB. 
llvm-svn: 63368
 2009-01-30 02:42:10 +00:00
Bill Wendling
665afce822 Propagate debug loc info in ADDC and ADDE. 
llvm-svn: 63367
 2009-01-30 02:38:00 +00:00
Bill Wendling
1ad9d3d9d1 Propagate debug loc info in DAG combine's "ADD". 
llvm-svn: 63366
 2009-01-30 02:31:17 +00:00
Bill Wendling
030f0fced8 - Propagate debug loc info in combineSelectAndUse(). 
- Modify ReassociateOps so that the resulting SDValue is what the comment claims
  it is.

llvm-svn: 63365
 2009-01-30 02:23:43 +00:00
Dale Johannesen
4855b2e85d Propagate debug info when building SelectionDAG. 
llvm-svn: 63359
 2009-01-30 01:34:22 +00:00
Devang Patel
270009c8ab Remove dead code, again. 
llvm-svn: 63358
 2009-01-30 01:27:49 +00:00
Devang Patel
180d237792 Remove dead code. 
llvm-svn: 63357
 2009-01-30 01:25:47 +00:00
Devang Patel
779653b60e Add DW_AT_declaration for class methods. 
llvm-svn: 63356
 2009-01-30 01:21:46 +00:00
Bill Wendling
31986c393f Propagate debug location info for the token factor. 
llvm-svn: 63355
 2009-01-30 01:13:16 +00:00
Devang Patel
65885d7f73 Add dump() routines to help debug debug info :) 
llvm-svn: 63353
 2009-01-30 01:03:10 +00:00
Bill Wendling
8165903969 Add DebugLoc propagation to some of the methods in DAG combiner. 
llvm-svn: 63350
 2009-01-30 00:45:56 +00:00
Owen Anderson
658fb62263 Correct the algorithms for choosing spill and restore points so that we don't try to insert loads/stores between call frame setup and the actual call. 
This fixes the last known failure for the pre-alloc-splitter.

llvm-svn: 63339
 2009-01-29 22:13:06 +00:00
Dan Gohman
ad5e59783b Explicitly add PseudoSourceValue information when lowering 
BUILD_VECTOR and conversions to stack operations.

llvm-svn: 63333
 2009-01-29 21:02:43 +00:00
Dan Gohman
cfbb66cf90 Make a few things const, fix some comments, and simplify 
some assertions.

llvm-svn: 63328
 2009-01-29 19:49:27 +00:00
Chris Lattner
0478798632 Fix windows build, patch by Marius Wachtler! 
llvm-svn: 63325
 2009-01-29 18:53:28 +00:00
Evan Cheng
1ffb8d20e8 Local register allocator shouldn't assume only the entry and landing pad basic blocks have live-ins. 
llvm-svn: 63323
 2009-01-29 18:37:30 +00:00
Dan Gohman
d04298a684 Fix two typos that Duncan spotted in a comment. 
llvm-svn: 63312
 2009-01-29 16:18:12 +00:00
Dan Gohman
14959cba72 In the case of an extractelement on an insertelement value, 
the element indices may be equal if either one is not a
constant.

llvm-svn: 63311
 2009-01-29 16:10:46 +00:00
Bill Wendling
fc00dc63dc Revert r63273. This was already implemented by Dale. There's no need for my 
change.

llvm-svn: 63301
 2009-01-29 09:01:55 +00:00
Owen Anderson
4dfa70d703 Fix an issue where restores could be inserted after a terminator instruction, 
and an iterator invalidation issue.

FreeBench/pifft no longer miscompiles with these fixes!

llvm-svn: 63293
 2009-01-29 08:22:06 +00:00
Owen Anderson
ad49be6552 Comments are good. :-) 
llvm-svn: 63276
 2009-01-29 05:41:02 +00:00
Owen Anderson
607c1ea284 Add support for aggressive load-use-store folding. This takes care of the 
vast majority of code size regressions introduced by pre-alloc-splitting.

llvm-svn: 63274
 2009-01-29 05:28:55 +00:00
Bill Wendling
c65110ba7e - Add DebugLoc to getTargetNode(). 
- Modify TableGen to add the DebugLoc when calling getTargetNode.

(The light-weight wrappers are only temporary. The non-DebugLoc version will be
removed once the whole debug info stuff is finished with.)

llvm-svn: 63273
 2009-01-29 05:27:31 +00:00
Chris Lattner
d5591247d1 Fix PR3424, a static constructor ordering issue. Patch by Robert Schuster! 
llvm-svn: 63269
 2009-01-29 04:43:42 +00:00
Evan Cheng
1346d22223 Exit with nice warnings when register allocator run out of registers. 
llvm-svn: 63267
 2009-01-29 02:20:59 +00:00
Dan Gohman
9d120d6d8f Make x86's BT instruction matching more thorough, and add some 
dagcombines that help it match in several more cases. Add
several more cases to test/CodeGen/X86/bt.ll. This doesn't
yet include matching for BT with an immediate operand, it
just covers more register+register cases.

llvm-svn: 63266
 2009-01-29 01:59:02 +00:00
Evan Cheng
71bbbe44d8 A slight compile time optimization. If the caller knows there isn't a free register getReg() should not call getFreeReg(). 
llvm-svn: 63263
 2009-01-29 01:13:00 +00:00
Dale Johannesen
9d1e40ac34 Add DebugLoc-sensitive versions of many node creation 
functions.  Currently omitted:  memcpy, memmove, memset.

llvm-svn: 63259
 2009-01-29 00:47:48 +00:00
Evan Cheng
da5915379c Fix comment about removeRange. 
llvm-svn: 63255
 2009-01-29 00:06:09 +00:00
Mon P Wang
8abb07a527 Fixed lowering of v816 shuffles. 
llvm-svn: 63252
 2009-01-28 23:11:14 +00:00
Bill Wendling
03582504e0 Add DebugLoc to the getNode() methods. 
llvm-svn: 63245
 2009-01-28 22:17:52 +00:00
Dale Johannesen
48b6d8aea9 Add DebugLoc-aware constructors for SDNode derived 
classes (those that reasonably have a DebugLoc
associated with them).

llvm-svn: 63236
 2009-01-28 21:18:29 +00:00
Devang Patel
be2267211f Do not forget to derived type while constructing an array type. 
llvm-svn: 63233
 2009-01-28 21:08:20 +00:00
Chris Lattner
f9dd07a3c3 Fix some issues with volatility, move "CanConvertToScalar" check 
after the others.

llvm-svn: 63227
 2009-01-28 20:16:43 +00:00
Mon P Wang
881e7e990a Fixed extract element when the result needs to be promoted and the input widened. 
llvm-svn: 63217
 2009-01-28 18:53:39 +00:00
Dan Gohman
bc43253a91 Make isOperationLegal do what its name suggests, and introduce a 
new isOperationLegalOrCustom, which does what isOperationLegal
previously did.

Update a bunch of callers to use isOperationLegalOrCustom
instead of isOperationLegal. In some case it wasn't obvious
which behavior is desired; when in doubt I changed then to
isOperationLegalOrCustom as that preserves their previous
behavior.

This is for the second half of PR3376.

llvm-svn: 63212
 2009-01-28 17:46:25 +00:00
Duncan Sands
7c360defc8 Formatting. 
llvm-svn: 63199
 2009-01-28 14:42:54 +00:00
Duncan Sands
aee16d4916 Rename getAnalysisToUpdate to getAnalysisIfAvailable. 
llvm-svn: 63198
 2009-01-28 13:14:17 +00:00
Duncan Sands
3350448d05 Fix PR3415 (infinite loop in EscapeAnalysis) by 
deleting the escape analysis pass.

llvm-svn: 63197
 2009-01-28 11:33:59 +00:00
Evan Cheng
2a965124b7 The memory alignment requirement on some of the mov{h|l}p{d|s} patterns are 16-byte. That is overly strict. These instructions read / write f64 memory locations without alignment requirement. 
llvm-svn: 63195
 2009-01-28 08:35:02 +00:00
Mon P Wang
e1c886f775 Add shuffle splat pattern for x86 sse shifts. 
llvm-svn: 63193
 2009-01-28 08:12:05 +00:00
Mikhail Glushenkov
2b0004bd39 Clarify comment. 
llvm-svn: 63171
 2009-01-28 03:46:22 +00:00