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revert r317812 [BasicAA] fix build break by converting the previously introduced...
author
Nuno Lopes
<nunoplopes@sapo.pt>
Thu, 9 Nov 2017 17:35:36 +0000
(17:35 +0000)
committer
Nuno Lopes
<nunoplopes@sapo.pt>
Thu, 9 Nov 2017 17:35:36 +0000
(17:35 +0000)
The code has a bug, but some tests regress.
I'll discuss this further on the mailing list.
llvm-svn: 317815
llvm/lib/Analysis/BasicAliasAnalysis.cpp
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diff --git
a/llvm/lib/Analysis/BasicAliasAnalysis.cpp
b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
index
528806a
..
fb9ece2
100644
(file)
--- a/
llvm/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/
llvm/lib/Analysis/BasicAliasAnalysis.cpp
@@
-1289,8
+1289,7
@@
AliasResult BasicAAResult::aliasGEP(const GEPOperator *GEP1, uint64_t V1Size,
// greater, we know they do not overlap.
if (GEP1BaseOffset != 0 && DecompGEP1.VarIndices.empty()) {
if (GEP1BaseOffset >= 0) {
- if (V1Size != MemoryLocation::UnknownSize &&
- V2Size != MemoryLocation::UnknownSize) {
+ if (V2Size != MemoryLocation::UnknownSize) {
if ((uint64_t)GEP1BaseOffset < V2Size)
return PartialAlias;
return NoAlias;