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| -rw-r--r-- | llvm/test/Transforms/Util/MemorySSA/multiple-locations.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/llvm/test/Transforms/Util/MemorySSA/multiple-locations.ll b/llvm/test/Transforms/Util/MemorySSA/multiple-locations.ll new file mode 100644 index 00000000000..f4fe1d1a0b5 --- /dev/null +++ b/llvm/test/Transforms/Util/MemorySSA/multiple-locations.ll @@ -0,0 +1,24 @@ +; RUN: opt -basicaa -print-memoryssa -verify-memoryssa -analyze < %s 2>&1 | FileCheck %s +; +; Checks that basicAA is doing some amount of disambiguation for us + +define i32 @foo(i1 %cond) { + %a = alloca i32, align 4 + %b = alloca i32, align 4 +; CHECK: 1 = MemoryDef(liveOnEntry) +; CHECK-NEXT: store i32 0 + store i32 0, i32* %a, align 4 +; CHECK: 2 = MemoryDef(1) +; CHECK-NEXT: store i32 1 + store i32 1, i32* %b, align 4 + +; CHECK: MemoryUse(1) +; CHECK-NEXT: %1 = load i32 + %1 = load i32, i32* %a, align 4 +; CHECK: MemoryUse(2) +; CHECK-NEXT: %2 = load i32 + %2 = load i32, i32* %b, align 4 + + %3 = add i32 %1, %2 + ret i32 %3 +} |
