Andrea Di Biagio a466d9dd9e When GVN removes a redundant load, it should not modify the debug location of the dominating load. ...

In the case of a fully redundant load LI dominated by an equivalent load V, GVN
should always preserve the original debug location of V. Otherwise, we risk to
introduce an incorrect stepping.
If V has debug info, then clearly it should not be modified. If V has a null
debugloc, then it is still potentially incorrect to propagate LI's debugloc
because LI may not post-dominate V.

Differential Revision: https://reviews.llvm.org/D27468

llvm-svn: 288903

2016-12-07 12:31:36 +00:00

..

PRE

Revert "[GVN/PRE] Hoist global values outside of loops."

2016-10-21 01:37:02 +00:00

2007-07-25-DominatedLoop.ll

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2007-07-25-InfiniteLoop.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

2007-07-25-Loop.ll

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2007-07-25-NestedLoop.ll

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2007-07-25-SinglePredecessor.ll

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2007-07-26-InterlockingLoops.ll

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2007-07-26-NonRedundant.ll

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2007-07-26-PhiErasure.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

2007-07-30-PredIDom.ll

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2007-07-31-NoDomInherit.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

2007-07-31-RedundantPhi.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

2008-02-12-UndefLoad.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

2008-02-13-NewPHI.ll

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2008-07-02-Unreachable.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

2008-12-09-SelfRemove.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

2008-12-12-RLE-Crash.ll

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2008-12-14-rle-reanalyze.ll

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2008-12-15-CacheVisited.ll

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2009-01-21-SortInvalidation.ll

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2009-01-22-SortInvalidation.ll

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2009-03-10-PREOnVoid.ll

[opaque pointer type] Add textual IR support for explicit type parameter for global aliases

2015-09-11 03:22:04 +00:00

2009-07-13-MemDepSortFail.ll

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2009-11-12-MemDepMallocBitCast.ll

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2010-03-31-RedundantPHIs.ll

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2010-05-08-OneBit.ll

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2010-11-13-Simplify.ll

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2011-04-27-phioperands.ll

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2011-07-07-MatchIntrinsicExtract.ll

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2011-09-07-TypeIdFor.ll

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2012-05-22-PreCrash.ll

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2016-08-30-MaskedScatterGather.ll

IntrArgMemOnly is only defined (and current AA machinery only sanely supports) pointer arguments, and these intrinsics have vector of pointer arguments. Remove ArgMemOnly until we either have the machinery, define a new attribute, or something similar

2016-08-30 19:58:48 +00:00

assume-equal.ll

Fix for two constant propagation problems in GVN with the assume intrinsic

2016-01-21 21:32:35 +00:00

basic-undef-test.ll

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basic.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

big-endian.ll

Do not widen load for different variable in GVN.

2016-09-09 18:42:35 +00:00

bitcast-of-call.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

br-identical.ll

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calloc-load-removal.ll

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calls-nonlocal.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

calls-readonly.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

commute.ll

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cond_br2.ll

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cond_br.ll

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condprop.ll

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crash-no-aa.ll

[PM/AA] Rebuild LLVM's alias analysis infrastructure in a way compatible

2015-09-09 17:55:00 +00:00

crash.ll

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dbg-redundant-load.ll

When GVN removes a redundant load, it should not modify the debug location of the dominating load.

2016-12-07 12:31:36 +00:00

edge.ll

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fence.ll

Allow value forwarding past release fences in GVN

2016-03-25 22:40:35 +00:00

flags.ll

[GVN] Respect fast-math-flags on fcmps

2016-04-22 06:37:51 +00:00

fold-const-expr.ll

[GVN] Fold constant expression in GVN.

2016-07-14 22:02:25 +00:00

fpmath.ll

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funclet.ll

[IR] Reformulate LLVM's EH funclet IR

2015-12-12 05:38:55 +00:00

invariant.group.ll

inariant.group handling in GVN

2015-10-02 22:12:22 +00:00

invariant.start.ll

[AliasAnalysis] Treat invariant.start as read-memory

2016-08-09 17:18:05 +00:00

lifetime-simple.ll

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load-constant-mem.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

load-from-unreachable-predecessor.ll

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malloc-load-removal.ll

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MemdepMiscompile.ll

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no_speculative_loads_with_asan.ll

Do not widen load for different variable in GVN.

2016-09-09 18:42:35 +00:00

noalias.ll

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non-local-offset.ll

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nonescaping-malloc.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

null-aliases-nothing.ll

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opt-remarks.ll

[GVN, OptDiag] Print the interesting instructions involved in missed load-elimination

2016-12-01 17:34:50 +00:00

phi-translate-partial-alias.ll

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pr10820.ll

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pr12979.ll

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pr14166.ll

[InstSimplify] Cast folding can be made more generic

2016-07-26 17:58:05 +00:00

pr17732.ll

Revert "Change memcpy/memset/memmove to have dest and source alignments."

2015-11-19 05:56:52 +00:00

pr17852.ll

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pr24397.ll

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pr24426.ll

Preserve CFG in MergedLoadStoreMotion. This fixes PR24426.

2015-10-18 19:34:10 +00:00

pr25440.ll

Do not widen load for different variable in GVN.

2016-09-09 18:42:35 +00:00

pr28562.ll

[IR] andIRFlags and copyIRFlags needs to handle GEP

2016-07-15 05:02:31 +00:00

pre-compare.ll

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pre-new-inst.ll

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propagate-ir-flags.ll

Fixed the lost FastMathFlags in GVN(Global Value Numbering).

2016-11-22 20:52:53 +00:00

range.ll

[GVN] Make a test case more robust

2015-10-28 03:20:05 +00:00

readattrs.ll

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rle-must-alias.ll

[GVN] Use FileCheck instead of grep for tests.

2016-07-17 23:21:26 +00:00

rle-no-phi-translate.ll

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rle-nonlocal.ll

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stale-loop-info.ll

[GVN] When merging blocks update LoopInfo if it's available

2016-12-01 03:56:43 +00:00

tbaa.ll

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unreachable_block_infinite_loop.ll

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volatile-nonvolatile.ll

More detailed dependence test between volatile and non-volatile accesses

2016-02-22 23:07:43 +00:00