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Diffstat (limited to 'test/Transforms/Util/MemorySSA/load-invariant.ll')
-rw-r--r-- | test/Transforms/Util/MemorySSA/load-invariant.ll | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/test/Transforms/Util/MemorySSA/load-invariant.ll b/test/Transforms/Util/MemorySSA/load-invariant.ll deleted file mode 100644 index 3c55db11597b..000000000000 --- a/test/Transforms/Util/MemorySSA/load-invariant.ll +++ /dev/null @@ -1,41 +0,0 @@ -; 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 -; -; Invariant loads should be considered live on entry, because, once the -; location is known to be dereferenceable, the value can never change. -; -; Currently XFAILed because this optimization was held back from the initial -; commit. - -@g = external global i32 - -declare void @clobberAllTheThings() - -; CHECK-LABEL: define i32 @foo -define i32 @foo() { -; CHECK: 1 = MemoryDef(liveOnEntry) -; CHECK-NEXT: call void @clobberAllTheThings() - call void @clobberAllTheThings() -; CHECK: MemoryUse(liveOnEntry) -; CHECK-NEXT: %1 = load i32 - %1 = load i32, i32* @g, align 4, !invariant.load !0 - ret i32 %1 -} - -; CHECK-LABEL: define i32 @bar -define i32 @bar(i32* %a) { -; CHECK: 1 = MemoryDef(liveOnEntry) -; CHECK-NEXT: call void @clobberAllTheThings() - call void @clobberAllTheThings() - -; CHECK: 2 = MemoryDef(1) -; CHECK-NEXT: %1 = load atomic i32 - %1 = load atomic i32, i32* %a acquire, align 4, !invariant.load !0 - -; CHECK: MemoryUse(2) -; CHECK-NEXT: %2 = load i32 - %2 = load i32, i32* %a, align 4 - ret i32 %2 -} - -!0 = !{} |