diff options
Diffstat (limited to 'llvm/test/Analysis/MemorySSA/optimize-use.ll')
| -rw-r--r-- | llvm/test/Analysis/MemorySSA/optimize-use.ll | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/llvm/test/Analysis/MemorySSA/optimize-use.ll b/llvm/test/Analysis/MemorySSA/optimize-use.ll new file mode 100644 index 00000000000..8a8f2dd5095 --- /dev/null +++ b/llvm/test/Analysis/MemorySSA/optimize-use.ll @@ -0,0 +1,37 @@ +; RUN: opt -basicaa -print-memoryssa -verify-memoryssa -analyze < %s 2>&1 | FileCheck %s +; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>,verify<memoryssa>' -disable-output < %s 2>&1 | FileCheck %s + +; Function Attrs: ssp uwtable +define i32 @main() { +entry: +; CHECK: 1 = MemoryDef(liveOnEntry) +; CHECK-NEXT: %call = call noalias i8* @_Znwm(i64 4) + %call = call noalias i8* @_Znwm(i64 4) + %0 = bitcast i8* %call to i32* +; CHECK: 2 = MemoryDef(1) +; CHECK-NEXT: %call1 = call noalias i8* @_Znwm(i64 4) + %call1 = call noalias i8* @_Znwm(i64 4) + %1 = bitcast i8* %call1 to i32* +; CHECK: 3 = MemoryDef(2) +; CHECK-NEXT: store i32 5, i32* %0, align 4 + store i32 5, i32* %0, align 4 +; CHECK: 4 = MemoryDef(3) +; CHECK-NEXT: store i32 7, i32* %1, align 4 + store i32 7, i32* %1, align 4 +; CHECK: MemoryUse(3) +; CHECK-NEXT: %2 = load i32, i32* %0, align 4 + %2 = load i32, i32* %0, align 4 +; CHECK: MemoryUse(4) +; CHECK-NEXT: %3 = load i32, i32* %1, align 4 + %3 = load i32, i32* %1, align 4 +; CHECK: MemoryUse(3) +; CHECK-NEXT: %4 = load i32, i32* %0, align 4 + %4 = load i32, i32* %0, align 4 +; CHECK: MemoryUse(4) +; CHECK-NEXT: %5 = load i32, i32* %1, align 4 + %5 = load i32, i32* %1, align 4 + %add = add nsw i32 %3, %5 + ret i32 %add +} + +declare noalias i8* @_Znwm(i64) |
