diff options
Diffstat (limited to 'test/CodeGen/AArch64/arm64-fastisel-gep-promote-before-add.ll')
| -rw-r--r-- | test/CodeGen/AArch64/arm64-fastisel-gep-promote-before-add.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/arm64-fastisel-gep-promote-before-add.ll b/test/CodeGen/AArch64/arm64-fastisel-gep-promote-before-add.ll new file mode 100644 index 0000000..af9fe05 --- /dev/null +++ b/test/CodeGen/AArch64/arm64-fastisel-gep-promote-before-add.ll @@ -0,0 +1,18 @@ +; fastisel should not fold add with non-pointer bitwidth +; sext(a) + sext(b) != sext(a + b) +; RUN: llc -mtriple=arm64-apple-darwin %s -O0 -o - | FileCheck %s + +define zeroext i8 @gep_promotion(i8* %ptr) nounwind uwtable ssp { +entry: + %ptr.addr = alloca i8*, align 8 + %add = add i8 64, 64 ; 0x40 + 0x40 + %0 = load i8** %ptr.addr, align 8 + + ; CHECK-LABEL: _gep_promotion: + ; CHECK: ldrb {{[a-z][0-9]+}}, {{\[[a-z][0-9]+\]}} + %arrayidx = getelementptr inbounds i8* %0, i8 %add + + %1 = load i8* %arrayidx, align 1 + ret i8 %1 +} + |