diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp | 4 | ||||
| -rw-r--r-- | llvm/test/Transforms/InstCombine/logical-select.ll | 9 |
2 files changed, 6 insertions, 7 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp index 3865572e816..01a5152131b 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp @@ -1619,8 +1619,8 @@ static Value *matchSelectFromAndOr(Value *A, Value *C, Value *B, Value *D, // through its bitcast and the corresponding bitcast of the 'not' condition. Type *OrigType = A->getType(); Value *SrcA, *SrcB; - if (match(A, m_BitCast(m_Value(SrcA))) && - match(B, m_BitCast(m_Value(SrcB)))) { + if (match(A, m_OneUse(m_BitCast(m_Value(SrcA)))) && + match(B, m_OneUse(m_BitCast(m_Value(SrcB))))) { A = SrcA; B = SrcB; } diff --git a/llvm/test/Transforms/InstCombine/logical-select.ll b/llvm/test/Transforms/InstCombine/logical-select.ll index d24a9cbd4aa..8fcf9c95888 100644 --- a/llvm/test/Transforms/InstCombine/logical-select.ll +++ b/llvm/test/Transforms/InstCombine/logical-select.ll @@ -265,15 +265,14 @@ define <2 x i64> @bitcast_select_swap7(<4 x i1> %cmp, <2 x double> %a, <2 x doub define <2 x i64> @bitcast_select_multi_uses(<4 x i1> %cmp, <2 x i64> %a, <2 x i64> %b) { ; CHECK-LABEL: @bitcast_select_multi_uses( ; CHECK-NEXT: [[SEXT:%.*]] = sext <4 x i1> %cmp to <4 x i32> +; CHECK-NEXT: [[BC1:%.*]] = bitcast <4 x i32> [[SEXT]] to <2 x i64> +; CHECK-NEXT: [[AND1:%.*]] = and <2 x i64> [[BC1]], %a ; CHECK-NEXT: [[NEG:%.*]] = xor <4 x i32> [[SEXT]], <i32 -1, i32 -1, i32 -1, i32 -1> ; CHECK-NEXT: [[BC2:%.*]] = bitcast <4 x i32> [[NEG]] to <2 x i64> ; CHECK-NEXT: [[AND2:%.*]] = and <2 x i64> [[BC2]], %b -; CHECK-NEXT: [[TMP1:%.*]] = bitcast <2 x i64> %a to <4 x i32> -; CHECK-NEXT: [[TMP2:%.*]] = bitcast <2 x i64> %b to <4 x i32> -; CHECK-NEXT: [[TMP3:%.*]] = select <4 x i1> %cmp, <4 x i32> [[TMP1]], <4 x i32> [[TMP2]] -; CHECK-NEXT: [[TMP4:%.*]] = bitcast <4 x i32> [[TMP3]] to <2 x i64> +; CHECK-NEXT: [[OR:%.*]] = or <2 x i64> [[AND2]], [[AND1]] ; CHECK-NEXT: [[ADD:%.*]] = add <2 x i64> [[AND2]], [[BC2]] -; CHECK-NEXT: [[SUB:%.*]] = sub <2 x i64> [[TMP4]], [[ADD]] +; CHECK-NEXT: [[SUB:%.*]] = sub <2 x i64> [[OR]], [[ADD]] ; CHECK-NEXT: ret <2 x i64> [[SUB]] ; %sext = sext <4 x i1> %cmp to <4 x i32> |
