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32798 Commits

Author SHA1 Message Date
Nick Lewycky df543f4b84 Optimize this test. Firstly, only Instructions may use other Instructions. 
Secondly, checking whether removal succeeded tells you whether it was in
the map to begin with.

llvm-svn: 37469
 2007-06-06 11:26:20 +00:00
Evan Cheng e8c3cbf971 Mark these instructions clobbersPred. They modify the condition code register. 
llvm-svn: 37468
 2007-06-06 10:17:05 +00:00
Evan Cheng 9030b98aca Lots of bug fixes. 
llvm-svn: 37467
 2007-06-06 10:16:17 +00:00
Evan Cheng d04409154f Added clobbersPred. 
llvm-svn: 37466
 2007-06-06 10:15:28 +00:00
Evan Cheng 452a818c6a Add clobbersPred - instruction that clobbers condition code / register which are used to predicate instructions. 
llvm-svn: 37465
 2007-06-06 10:14:55 +00:00
Evan Cheng fcde8e52b3 Add a machine instruction flag indicating the instruction can clobber condition code / register(s) used to predicate instructions. 
llvm-svn: 37464
 2007-06-06 10:13:55 +00:00
Duncan Sands 61166501a1 Additional fix for PR1422: make sure the landing pad label is placed in the 
correct machine basic block - do not rely on the eh.exception intrinsic
being in the landing pad: the loop optimizers can move it out.

llvm-svn: 37463
 2007-06-06 10:05:18 +00:00
Duncan Sands fe940d8d74 "Simplified" testcase for PR1422. 
llvm-svn: 37462
 2007-06-06 09:59:53 +00:00
Bruno Cardoso Lopes 35e43c49b0 Initial Mips support, here we go! =) 
- Modifications from the last patch included
  (issues pointed by Evan Cheng are now fixed).
- Added more MipsI instructions.
- Added more patterns to match branch instructions.

llvm-svn: 37461
 2007-06-06 07:42:06 +00:00
Tanya Lattner 277bbbc1be Ignore llvm.noinline 
llvm-svn: 37460
 2007-06-06 05:53:50 +00:00
Nick Lewycky 3e84212897 Fix PR1487 and Transforms/IndVar/2007-06-06-DeleteDanglesPtr.ll 
llvm-svn: 37459
 2007-06-06 04:12:20 +00:00
Nick Lewycky 3b70bb2778 new testcase for PR1487 
llvm-svn: 37458
 2007-06-06 04:11:21 +00:00
Nick Lewycky 91ed6efc24 Inform ScalarEvolutions that we're deleting Values. 
This is the obviously correct part of the fix for PR1487.

llvm-svn: 37457
 2007-06-06 03:51:56 +00:00
Evan Cheng e4ec918be0 If a unconditional branch is added to branch to the false path during ifcvt, the predicated block cannot be iteratively ifcvted. 
llvm-svn: 37456
 2007-06-06 02:08:52 +00:00
Owen Anderson 634a063c1d Add simple full redundancy elimination. 
llvm-svn: 37455
 2007-06-06 01:27:49 +00:00
Chris Lattner 1b7b6e76ec Fix PR1495 and CodeGen/X86/2007-06-05-LSR-Dominator.ll 
llvm-svn: 37454
 2007-06-06 01:23:55 +00:00
Chris Lattner 6b79636532 add accessor 
llvm-svn: 37453
 2007-06-06 01:22:09 +00:00
Chris Lattner af56be7f2c new testcase for PR1495 
llvm-svn: 37452
 2007-06-06 01:21:46 +00:00
Evan Cheng b30a89457c Minor statistics counting bug. 
llvm-svn: 37451
 2007-06-06 01:12:44 +00:00
Devang Patel 5aced6a54a Break friendship. 
llvm-svn: 37450
 2007-06-06 00:59:48 +00:00
Evan Cheng 30565998bb Fix a couple of typos and be smarter about order of blocks when ifcvt a diamond. 
llvm-svn: 37449
 2007-06-06 00:57:55 +00:00
Devang Patel 3c6ab49051 Rename. 
llvm-svn: 37448
 2007-06-06 00:49:02 +00:00
Devang Patel d7d3d71c7a Simplify class hierarchy. 
llvm-svn: 37447
 2007-06-06 00:46:36 +00:00
Devang Patel 506310d3dd Avoid non-trivial loop unswitching while optimizing for size. 
llvm-svn: 37446
 2007-06-06 00:21:03 +00:00
Chris Lattner 31f82dff21 Fix a user-reported error building with GCC 3.4.4 on Cygwin. 
llvm-svn: 37445
 2007-06-05 23:49:06 +00:00
Evan Cheng 7948422b78 Fix diamond shape ifcvt bugs. 
llvm-svn: 37444
 2007-06-05 23:46:14 +00:00
Owen Anderson ddbe430732 Fix a misunderstanding of the algorithm. Really, we should be tracking values 
and expression separately.  We can get around this, however, by only keeping
opaque values in TMP_GEN.

llvm-svn: 37443
 2007-06-05 23:46:12 +00:00
Owen Anderson c84720913a Don't leak memory. 
llvm-svn: 37442
 2007-06-05 22:11:49 +00:00
Evan Cheng c1a0b8ce1d ReplaceUsesOfBlockWith() can modify the predecessors list. 
llvm-svn: 37441
 2007-06-05 22:03:53 +00:00
Evan Cheng 3e5bf0827c Do not ifcvt if either true / false path is a backedge. Not profitable in almost all cases. 
llvm-svn: 37440
 2007-06-05 20:38:42 +00:00
Devang Patel 3e6519e9fa Fix PR 1497 
Use separate pass id for CFGOnlyPrinter.

llvm-svn: 37439
 2007-06-05 20:24:36 +00:00
Devang Patel 753b63cb5b New test. 
llvm-svn: 37438
 2007-06-05 20:23:20 +00:00
Evan Cheng 5c48958a61 Print predicate of the second instruction of the two-piece constant MI. 
llvm-svn: 37437
 2007-06-05 18:55:18 +00:00
Owen Anderson 9b89e4b561 Fix a small bug, some 80 cols violations, and add some more debugging output. 
llvm-svn: 37436
 2007-06-05 17:31:23 +00:00
Dan Gohman 151169df1e Allow insertelement, extractelement, and shufflevector to be hoisted/sunk 
by LICM.

llvm-svn: 37435
 2007-06-05 16:05:55 +00:00
Evan Cheng 252695f0f6 PIC label asm printing cosmetic changes. 
llvm-svn: 37434
 2007-06-05 07:36:38 +00:00
Evan Cheng 2c1acd6d9e I had a senior moment. 
llvm-svn: 37433
 2007-06-05 07:05:25 +00:00
Zhou Sheng 2444a9adeb Commit first round work of PR1373. "noalias" is now fully supported in 
VMCore, BitCode, and Assembly. Documentation and test case paramattrs.ll
updated also.

llvm-svn: 37432
 2007-06-05 05:28:26 +00:00
Evan Cheng 59754300a8 New test. 
llvm-svn: 37431
 2007-06-05 01:45:08 +00:00
Evan Cheng 6e4babe8cc If the predicated block requires an early exit, end the block there and add a unconditional branch to false block. AnalyzeBranch() does not understand early exits. 
llvm-svn: 37430
 2007-06-05 01:31:40 +00:00
Evan Cheng 17aad8164e Fix some subtle bugs: bug during succeessor copying; incorrectly updating states of ifcvted blocks. 
llvm-svn: 37429
 2007-06-05 00:07:37 +00:00
Bill Wendling 6357bf20fa Patches by Chuck Rose to unbreak V Studio builds. 
Thanks Chuck!

llvm-svn: 37428
 2007-06-04 23:52:59 +00:00
Dale Johannesen 0558dda319 Tail merging wasn't working for predecessors of landing pads. PR 1496. 
llvm-svn: 37427
 2007-06-04 23:52:54 +00:00
Devang Patel b3adb9876a s/ETNode::getChildren/ETNode::getETNodeChildren/g 
llvm-svn: 37426
 2007-06-04 23:45:02 +00:00
Owen Anderson 3c9d8eef21 Don't use std::set_difference when the two sets are sorted differently. Compute 
the difference manually instead.

This allows GVNPRE to produce correct analysis for the example in the GVNPRE
paper.

llvm-svn: 37425
 2007-06-04 23:34:56 +00:00
Owen Anderson 3df5299f94 Fix a bunch of small bugs, and improve the debugging output significantly. 
llvm-svn: 37424
 2007-06-04 23:28:33 +00:00
Chris Lattner d7897d40b6 When rebuilding constant structs, make sure to honor the isPacked bit. 
This fixes PR1491 and GlobalOpt/2007-06-04-PackedStruct.ll

llvm-svn: 37423
 2007-06-04 22:23:42 +00:00
Chris Lattner 084c20fcc0 new testcase for PR1491 
llvm-svn: 37422
 2007-06-04 22:23:17 +00:00
Evan Cheng 53ce7de03b Global ctors / dtors alignment shouldn't be hard-coded at 4. e.g. It could be 8 for 64-bit targets. 
llvm-svn: 37421
 2007-06-04 20:39:18 +00:00
Evan Cheng 91233153bf Forgot to check for if iterator reached the end. 
llvm-svn: 37420
 2007-06-04 20:33:36 +00:00