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7970 Commits

Author SHA1 Message Date
Devang Patel 7de6c4bf75 Use IRBuilder while simplifying branch. 
llvm-svn: 131598
 2011-05-18 23:18:47 +00:00
Eli Friedman 1754a25977 More instcombine simplifications towards better debug locations. 
llvm-svn: 131596
 2011-05-18 23:11:30 +00:00
Devang Patel dd14e0f7fa Use IRBuilder while simplifying return instruction. 
llvm-svn: 131580
 2011-05-18 21:33:11 +00:00
Dan Gohman 3268e4d692 When forming an ICmpZero LSRUse, normalize the non-IV operand 
of the comparison, so that the resulting expression is fully
normalized. This fixes PR9939.

llvm-svn: 131576
 2011-05-18 21:02:18 +00:00
Devang Patel 583805530c Spread use of IRBuilder even more. 
llvm-svn: 131571
 2011-05-18 20:53:17 +00:00
Devang Patel a7ec47d23c Use IRBuilder while simplifying switch instruction. 
llvm-svn: 131566
 2011-05-18 20:35:38 +00:00
Devang Patel 0b373dca1f Use IRBuilder while simplifying unwind. 
llvm-svn: 131561
 2011-05-18 20:01:18 +00:00
Eli Friedman 49346010f8 More instcombine cleanup aimed towards improving debug line info. 
llvm-svn: 131559
 2011-05-18 19:57:14 +00:00
Devang Patel 2c2ea226b7 Use IRBuilder while simplifying terminator. 
llvm-svn: 131552
 2011-05-18 18:43:31 +00:00
Devang Patel 767f6930bc Use IRBuilder while simplifying unconditional branch. 
llvm-svn: 131551
 2011-05-18 18:28:48 +00:00
Devang Patel 5c810ce4a3 Use IRBuilder while folding two entry PHINode. 
llvm-svn: 131548
 2011-05-18 18:16:44 +00:00
Eli Friedman 2fd66441c6 Switch more inst insertion in instcombine to IRBuilder. 
llvm-svn: 131547
 2011-05-18 18:10:28 +00:00
Devang Patel 15ad6761da Set up IRBuilder for use during simplification. 
llvm-svn: 131545
 2011-05-18 18:01:27 +00:00
Eli Friedman 0b43b9ee98 Switch more inst insertion in instcombine to IRBuilder. 
llvm-svn: 131544
 2011-05-18 17:58:37 +00:00
Matt Beaumont-Gay 8fa6ebf975 fix typo 
llvm-svn: 131543
 2011-05-18 17:37:10 +00:00
Eli Friedman cde9c1628c Switch inst insertion in instcombine transform to IRBuilder. 
llvm-svn: 131542
 2011-05-18 17:31:55 +00:00
Devang Patel 1fabbe921b Use IRBuiler while constant folding terminator. 
llvm-svn: 131541
 2011-05-18 17:26:46 +00:00
Stuart Hastings 728f6260b9 Fix inelegant initialization. 
llvm-svn: 131538
 2011-05-18 15:54:26 +00:00
Duncan Sands 3d9407f4eb Revert commit 131534 since it seems to have broken several buildbots. 
Original log entry:
Refactor getActionType and getTypeToTransformTo ; place all of the 'decision'
code in one place.

llvm-svn: 131536
 2011-05-18 14:57:56 +00:00
Nadav Rotem c5c27ede55 Refactor getActionType and getTypeToTransformTo ; place all of the 'decision' 
code in one place.

llvm-svn: 131534
 2011-05-18 12:26:38 +00:00
Eli Friedman 96254a0d53 Start trying to make InstCombine preserve more debug info. The idea here is to set the debug location on the IRBuilder, which will be then right location in most cases. This should magically give many transformations debug locations, and fixing places which are missing a debug location will usually just means changing the code creating it to use the IRBuilder. 
As an example, the change to InstCombineCalls catches a common case where a call to a bitcast of a function is rewritten.

Chris, does this approach look reasonable?

llvm-svn: 131516
 2011-05-18 01:28:27 +00:00
Eli Friedman b9ed18f2cb Use ReplaceInstUsesWith instead of replaceAllUsesWith where appropriate in instcombine. 
llvm-svn: 131512
 2011-05-18 00:32:01 +00:00
Devang Patel b849cd511b Preseve line numbers while simplifying CFG. 
llvm-svn: 131508
 2011-05-17 23:29:05 +00:00
Bill Wendling 0671ba8448 Conditionalize the format of the GCOV files by target type. Darwin uses the 4.2 
format.

llvm-svn: 131503
 2011-05-17 23:05:13 +00:00
Stuart Hastings 5bd18b6638 X86 pmovsx/pmovzx ignore the upper half of their inputs. 
rdar://problem/6945110

llvm-svn: 131493
 2011-05-17 22:13:31 +00:00
Devang Patel 341b38c22a Preserve line number information. 
llvm-svn: 131482
 2011-05-17 20:00:02 +00:00
Devang Patel c5933f2418 Set debug loc for new load instruction. 
llvm-svn: 131481
 2011-05-17 19:43:38 +00:00
Devang Patel c23bcbc498 Preserve line number information. 
llvm-svn: 131480
 2011-05-17 19:43:06 +00:00
Devang Patel a0b682db62 There is no need to force DebugLoc on a PHI at this point. 
llvm-svn: 131427
 2011-05-16 22:05:03 +00:00
Devang Patel 8e60ff11db Preserve debug info for unused zero extended boolean argument. 
Radar 9422775.

llvm-svn: 131422
 2011-05-16 21:24:05 +00:00
Rafael Espindola 2050af838d Don't do tail calls in a function that call setjmp. The stack might be 
corrupted when setjmp returns again.

llvm-svn: 131399
 2011-05-16 03:05:33 +00:00
Benjamin Kramer d96205c4e5 SimplifyCFG: Use ComputeMaskedBits to prune dead cases from switch instructions. 
llvm-svn: 131345
 2011-05-14 15:57:25 +00:00
Stuart Hastings 66a82b966e Avoid combining GEPs that might overflow at runtime. 
rdar://problem/9267970

Patch by Julien Lerouge!

llvm-svn: 131339
 2011-05-14 05:55:10 +00:00
Julien Lerouge 7e11f9e26d Fix a source of non determinism in FindUsedTypes, use a SetVector instead of a 
set.

rdar://9423996

llvm-svn: 131283
 2011-05-13 05:20:42 +00:00
Andrew Trick 03957dfeb1 Convert SimplifyIVUsers into a worklist instead of a single pass over 
the users.

llvm-svn: 131277
 2011-05-13 01:12:21 +00:00
Andrew Trick 81683ed232 indvars: Added SimplifyIVUsers. 
Interleave IV simplifications. Currently involves EliminateComparison
and EliminateRemainder. Next I'll add EliminateExtend.

llvm-svn: 131210
 2011-05-12 00:04:28 +00:00
Devang Patel 3fd06f760b Preserve line number information. 
llvm-svn: 131112
 2011-05-10 00:03:11 +00:00
Duncan Sands a071c82900 Fix PR9820: a read-only call differs from a load in that a load doesn't 
return the pointer being dereferenced, it returns the pointee, but a call
might return the pointer itself.

llvm-svn: 130979
 2011-05-06 10:30:37 +00:00
Nick Lewycky a7028848a1 The computation of string length is not that complicated. Fix it, again. :) 
llvm-svn: 130967
 2011-05-05 23:52:18 +00:00
Eli Friedman 8a20e66926 PR9838: Fix transform introduced in r127064 to not trigger when only one side of the icmp is an exact shift. 
llvm-svn: 130954
 2011-05-05 21:59:18 +00:00
Nick Lewycky 4f9c367f0b Update the gcov version used slightly, to make it stop causing modern gcov's to 
crash.

llvm-svn: 130911
 2011-05-05 02:46:38 +00:00
Nick Lewycky baa878ce4a Remove dead function. 
llvm-svn: 130903
 2011-05-05 00:17:34 +00:00
Nick Lewycky a3d5d167a8 When the path wasn't emitted by the frontend, discard any path on the source 
filename.

llvm-svn: 130897
 2011-05-05 00:03:30 +00:00
Devang Patel ffb798c1c6 Set debug loc for new instructions. 
llvm-svn: 130895
 2011-05-04 23:58:50 +00:00
Devang Patel ac794d46bf Set debug location for new PHI nodes created in exit block. 
llvm-svn: 130894
 2011-05-04 23:58:22 +00:00
Devang Patel 306f8db721 Preserve line number information while threading jumps. 
llvm-svn: 130880
 2011-05-04 22:48:19 +00:00
Devang Patel c7e4fa7c19 Preserve line number info. 
llvm-svn: 130876
 2011-05-04 21:58:58 +00:00
Devang Patel 0daa07eb90 preserve line number info. 
llvm-svn: 130869
 2011-05-04 21:37:05 +00:00
Nick Lewycky 6d9f061a6b Emit gcov data files to the directory specified in the metadata produced by the 
frontend, if applicable.

llvm-svn: 130835
 2011-05-04 04:03:04 +00:00
Andrew Trick 1abe296cfd indvars: Added DisableIVRewrite and WidenIVs. 
This adds functionality to remove size/zero extension during indvars
without generating a canonical IV and rewriting all IV users. It's
disabled by default so should have no effect on codegen. Work in progress.

llvm-svn: 130829
 2011-05-04 02:10:13 +00:00