diff options
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Transforms/GVN/invariant.group.ll | 52 | ||||
| -rw-r--r-- | llvm/test/Transforms/NewGVN/invariant.group.ll | 52 |
2 files changed, 104 insertions, 0 deletions
diff --git a/llvm/test/Transforms/GVN/invariant.group.ll b/llvm/test/Transforms/GVN/invariant.group.ll index 026671a5bdf..d0b32d7f3dd 100644 --- a/llvm/test/Transforms/GVN/invariant.group.ll +++ b/llvm/test/Transforms/GVN/invariant.group.ll @@ -344,11 +344,63 @@ _Z1gR1A.exit: ; preds = %0, %5 ret void } +; Check if no optimizations are performed with global pointers. +; FIXME: we could do the optimizations if we would check if dependency comes +; from the same function. +; CHECK-LABEL: define void @testGlobal() { +define void @testGlobal() { +; CHECK: %a = load i8, i8* @unknownPtr, !invariant.group !0 + %a = load i8, i8* @unknownPtr, !invariant.group !0 + call void @foo2(i8* @unknownPtr, i8 %a) +; CHECK: %1 = load i8, i8* @unknownPtr, !invariant.group !0 + %1 = load i8, i8* @unknownPtr, !invariant.group !0 + call void @bar(i8 %1) + + %b0 = bitcast i8* @unknownPtr to i1* + call void @fooBit(i1* %b0, i1 1) +; Adding regex because of canonicalization of bitcasts +; CHECK: %2 = load i1, i1* {{.*}}, !invariant.group !0 + %2 = load i1, i1* %b0, !invariant.group !0 + call void @fooBit(i1* %b0, i1 %2) +; CHECK: %3 = load i1, i1* {{.*}}, !invariant.group !0 + %3 = load i1, i1* %b0, !invariant.group !0 + call void @fooBit(i1* %b0, i1 %3) + ret void +} +; And in the case it is not global +; CHECK-LABEL: define void @testNotGlobal() { +define void @testNotGlobal() { + %a = alloca i8 + call void @foo(i8* %a) +; CHECK: %b = load i8, i8* %a, !invariant.group !0 + %b = load i8, i8* %a, !invariant.group !0 + call void @foo2(i8* %a, i8 %b) + + %1 = load i8, i8* %a, !invariant.group !0 +; CHECK: call void @bar(i8 %b) + call void @bar(i8 %1) + + %b0 = bitcast i8* %a to i1* + call void @fooBit(i1* %b0, i1 1) +; CHECK: %trunc = trunc i8 %b to i1 + %2 = load i1, i1* %b0, !invariant.group !0 +; CHECK-NEXT: call void @fooBit(i1* %b0, i1 %trunc) + call void @fooBit(i1* %b0, i1 %2) + %3 = load i1, i1* %b0, !invariant.group !0 +; CHECK-NEXT: call void @fooBit(i1* %b0, i1 %trunc) + call void @fooBit(i1* %b0, i1 %3) + ret void +} + + declare void @foo(i8*) +declare void @foo2(i8*, i8) declare void @bar(i8) declare i8* @getPointer(i8*) declare void @_ZN1A3fooEv(%struct.A*) declare void @_ZN1AC1Ev(%struct.A*) +declare void @fooBit(i1*, i1) + declare i8* @llvm.invariant.group.barrier(i8*) ; Function Attrs: nounwind diff --git a/llvm/test/Transforms/NewGVN/invariant.group.ll b/llvm/test/Transforms/NewGVN/invariant.group.ll index 2bddc99c8b8..80c6e05a8e2 100644 --- a/llvm/test/Transforms/NewGVN/invariant.group.ll +++ b/llvm/test/Transforms/NewGVN/invariant.group.ll @@ -345,11 +345,63 @@ _Z1gR1A.exit: ; preds = %0, %5 ret void } +; Check if no optimizations are performed with global pointers. +; FIXME: we could do the optimizations if we would check if dependency comes +; from the same function. +; CHECK-LABEL: define void @testGlobal() { +define void @testGlobal() { +; CHECK: %a = load i8, i8* @unknownPtr, !invariant.group !0 + %a = load i8, i8* @unknownPtr, !invariant.group !0 + call void @foo2(i8* @unknownPtr, i8 %a) +; CHECK: %1 = load i8, i8* @unknownPtr, !invariant.group !0 + %1 = load i8, i8* @unknownPtr, !invariant.group !0 + call void @bar(i8 %1) + + %b0 = bitcast i8* @unknownPtr to i1* + call void @fooBit(i1* %b0, i1 1) +; Adding regex because of canonicalization of bitcasts +; CHECK: %2 = load i1, i1* {{.*}}, !invariant.group !0 + %2 = load i1, i1* %b0, !invariant.group !0 + call void @fooBit(i1* %b0, i1 %2) +; CHECK: %3 = load i1, i1* {{.*}}, !invariant.group !0 + %3 = load i1, i1* %b0, !invariant.group !0 + call void @fooBit(i1* %b0, i1 %3) + ret void +} +; And in the case it is not global +; CHECK-LABEL: define void @testNotGlobal() { +define void @testNotGlobal() { + %a = alloca i8 + call void @foo(i8* %a) +; CHECK: %b = load i8, i8* %a, !invariant.group !0 + %b = load i8, i8* %a, !invariant.group !0 + call void @foo2(i8* %a, i8 %b) + + %1 = load i8, i8* %a, !invariant.group !0 +; CHECK: call void @bar(i8 %b) + call void @bar(i8 %1) + + %b0 = bitcast i8* %a to i1* + call void @fooBit(i1* %b0, i1 1) +; CHECK: %trunc = trunc i8 %b to i1 + %2 = load i1, i1* %b0, !invariant.group !0 +; CHECK-NEXT: call void @fooBit(i1* %b0, i1 %trunc) + call void @fooBit(i1* %b0, i1 %2) + %3 = load i1, i1* %b0, !invariant.group !0 +; CHECK-NEXT: call void @fooBit(i1* %b0, i1 %trunc) + call void @fooBit(i1* %b0, i1 %3) + ret void +} + + declare void @foo(i8*) +declare void @foo2(i8*, i8) declare void @bar(i8) declare i8* @getPointer(i8*) declare void @_ZN1A3fooEv(%struct.A*) declare void @_ZN1AC1Ev(%struct.A*) +declare void @fooBit(i1*, i1) + declare i8* @llvm.invariant.group.barrier(i8*) ; Function Attrs: nounwind |
