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| author | Peter Collingbourne <peter@pcc.me.uk> | 2015-09-09 22:30:32 +0000 |
|---|---|---|
| committer | Peter Collingbourne <peter@pcc.me.uk> | 2015-09-09 22:30:32 +0000 |
| commit | 1cbc91eccfed7c6777a03a1f9979aff083d786e6 (patch) | |
| tree | 791a8215c3cfe863b50644c8ae4e5033dc5930fb /llvm/test | |
| parent | ac49453b58779dbc2f9949d797aa422249023432 (diff) | |
| download | bcm5719-llvm-1cbc91eccfed7c6777a03a1f9979aff083d786e6.tar.gz bcm5719-llvm-1cbc91eccfed7c6777a03a1f9979aff083d786e6.zip | |
LowerBitSets: Fix non-determinism bug.
Visit disjoint sets in a deterministic order based on the maximum BitSetNM
index, otherwise the order in which we visit them will depend on pointer
comparisons. This was being exposed by MSan.
llvm-svn: 247201
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Transforms/LowerBitSets/nonstring.ll | 2 | ||||
| -rw-r--r-- | llvm/test/Transforms/LowerBitSets/simple.ll | 12 |
2 files changed, 7 insertions, 7 deletions
diff --git a/llvm/test/Transforms/LowerBitSets/nonstring.ll b/llvm/test/Transforms/LowerBitSets/nonstring.ll index 0d655da3bb0..e61c9123e08 100644 --- a/llvm/test/Transforms/LowerBitSets/nonstring.ll +++ b/llvm/test/Transforms/LowerBitSets/nonstring.ll @@ -4,8 +4,8 @@ target datalayout = "e-p:32:32" -; CHECK: @[[BNAME:.*]] = private constant { [2 x i32] } ; CHECK: @[[ANAME:.*]] = private constant { i32 } +; CHECK: @[[BNAME:.*]] = private constant { [2 x i32] } @a = constant i32 1 @b = constant [2 x i32] [i32 2, i32 3] diff --git a/llvm/test/Transforms/LowerBitSets/simple.ll b/llvm/test/Transforms/LowerBitSets/simple.ll index df2ccf98786..6c9d66ae2bd 100644 --- a/llvm/test/Transforms/LowerBitSets/simple.ll +++ b/llvm/test/Transforms/LowerBitSets/simple.ll @@ -26,16 +26,16 @@ target datalayout = "e-p:32:32" !4 = !{!"bitset2", i32* @c, i32 0} ; CHECK-NODISCARD-DAG: !{!"bitset2", i32* @c, i32 0} +; Entries whose second operand is null (the result of a global being DCE'd) +; should be ignored. +!5 = !{!"bitset2", null, i32 0} + ; Offset 0, 4 byte alignment -!5 = !{!"bitset3", i32* @a, i32 0} +!6 = !{!"bitset3", i32* @a, i32 0} ; CHECK-NODISCARD-DAG: !{!"bitset3", i32* @a, i32 0} -!6 = !{!"bitset3", i32* @c, i32 0} +!7 = !{!"bitset3", i32* @c, i32 0} ; CHECK-NODISCARD-DAG: !{!"bitset3", i32* @c, i32 0} -; Entries whose second operand is null (the result of a global being DCE'd) -; should be ignored. -!7 = !{!"bitset2", null, i32 0} - !llvm.bitsets = !{ !0, !1, !2, !3, !4, !5, !6, !7 } ; CHECK: @bits_use{{[0-9]*}} = private alias i8* @bits{{[0-9]*}} |
