From 8114867d8b2202ab17bee2f0885da09918e0be2a Mon Sep 17 00:00:00 2001 From: George Burgess IV Date: Fri, 5 Feb 2016 00:42:02 +0000 Subject: [PATCH] Add a test for MemorySSA. NFC. We don't currently have many tests that deal with operations on multiple local MemoryLocations. This new test helps out a bit in that regard. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259854 91177308-0d34-0410-b5e6-96231b3b80d8 --- .../Util/MemorySSA/multiple-locations.ll | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 test/Transforms/Util/MemorySSA/multiple-locations.ll diff --git a/test/Transforms/Util/MemorySSA/multiple-locations.ll b/test/Transforms/Util/MemorySSA/multiple-locations.ll new file mode 100644 index 00000000000..f4fe1d1a0b5 --- /dev/null +++ b/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 +} -- 2.11.0