diff options
Diffstat (limited to 'llvm/test/Transforms/Util')
| -rw-r--r-- | llvm/test/Transforms/Util/MemorySSA/invariant-groups.ll | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/llvm/test/Transforms/Util/MemorySSA/invariant-groups.ll b/llvm/test/Transforms/Util/MemorySSA/invariant-groups.ll index 6bb55d519ce..06797e64545 100644 --- a/llvm/test/Transforms/Util/MemorySSA/invariant-groups.ll +++ b/llvm/test/Transforms/Util/MemorySSA/invariant-groups.ll @@ -98,6 +98,188 @@ define i32 @handleInvariantGroups(i32* %a) { ret i32 %add } +define i32 @loop(i1 %a) { +entry: + %0 = alloca i32, align 4 +; CHECK: 1 = MemoryDef(liveOnEntry) +; CHECK-NEXT: store i32 4 + store i32 4, i32* %0, !invariant.group !0 +; CHECK: 2 = MemoryDef(1) +; CHECK-NEXT: call void @clobber + call void @clobber(i32* %0) + br i1 %a, label %Loop.Body, label %Loop.End + +Loop.Body: +; FIXME: MemoryUse(1) +; CHECK: MemoryUse(2) +; CHECK-NEXT: %1 = load i32 + %1 = load i32, i32* %0, !invariant.group !0 + br i1 %a, label %Loop.End, label %Loop.Body + +Loop.End: +; FIXME: MemoryUse(1) +; CHECK: MemoryUse(2) +; CHECK-NEXT: %2 = load + %2 = load i32, i32* %0, align 4, !invariant.group !0 + br i1 %a, label %Ret, label %Loop.Body + +Ret: + ret i32 %2 +} + +define i8 @loop2(i8* %p) { +entry: +; CHECK: 1 = MemoryDef(liveOnEntry) +; CHECK-NEXT: store i8 + store i8 4, i8* %p, !invariant.group !0 +; CHECK: 2 = MemoryDef(1) +; CHECK-NEXT: call void @clobber + call void @clobber8(i8* %p) + %after = call i8* @llvm.invariant.group.barrier(i8* %p) + br i1 undef, label %Loop.Body, label %Loop.End + +Loop.Body: +; 4 = MemoryPhi({entry,2},{Loop.Body,3},{Loop.End,5}) +; CHECK: MemoryUse(4) +; CHECK-NEXT: %0 = load i8 + %0 = load i8, i8* %after, !invariant.group !0 + +; FIXME: MemoryUse(1) +; CHECK: MemoryUse(4) +; CHECK-NEXT: %1 = load i8 + %1 = load i8, i8* %p, !invariant.group !0 + +; CHECK: 3 = MemoryDef(4) + store i8 4, i8* %after, !invariant.group !0 + + br i1 undef, label %Loop.End, label %Loop.Body + +Loop.End: +; 5 = MemoryPhi({entry,2},{Loop.Body,3}) +; CHECK: MemoryUse(5) +; CHECK-NEXT: %2 = load + %2 = load i8, i8* %after, align 4, !invariant.group !0 + +; FIXME: MemoryUse(1) +; CHECK: MemoryUse(5) +; CHECK-NEXT: %3 = load + %3 = load i8, i8* %p, align 4, !invariant.group !0 + br i1 undef, label %Ret, label %Loop.Body + +Ret: + ret i8 %3 +} + + +define i8 @loop3(i8* %p) { +entry: +; CHECK: 1 = MemoryDef(liveOnEntry) +; CHECK-NEXT: store i8 + store i8 4, i8* %p, !invariant.group !0 +; CHECK: 2 = MemoryDef(1) +; CHECK-NEXT: call void @clobber + call void @clobber8(i8* %p) + %after = call i8* @llvm.invariant.group.barrier(i8* %p) + br i1 undef, label %Loop.Body, label %Loop.End + +Loop.Body: +; CHECK: 6 = MemoryPhi({entry,2},{Loop.Body,3},{Loop.next,4},{Loop.End,5}) +; CHECK: MemoryUse(6) +; CHECK-NEXT: %0 = load i8 + %0 = load i8, i8* %after, !invariant.group !0 + +; CHECK: 3 = MemoryDef(6) +; CHECK-NEXT: call void @clobber8 + call void @clobber8(i8* %after) + +; FIXME: MemoryUse(6) +; CHECK: MemoryUse(3) +; CHECK-NEXT: %1 = load i8 + %1 = load i8, i8* %after, !invariant.group !0 + + br i1 undef, label %Loop.next, label %Loop.Body +Loop.next: +; CHECK: 4 = MemoryDef(3) +; CHECK-NEXT: call void @clobber8 + call void @clobber8(i8* %after) + +; FIXME: MemoryUse(6) +; CHECK: MemoryUse(4) +; CHECK-NEXT: %2 = load i8 + %2 = load i8, i8* %after, !invariant.group !0 + + br i1 undef, label %Loop.End, label %Loop.Body + +Loop.End: +; CHECK: 7 = MemoryPhi({entry,2},{Loop.next,4}) +; CHECK: MemoryUse(7) +; CHECK-NEXT: %3 = load + %3 = load i8, i8* %after, align 4, !invariant.group !0 + +; CHECK: 5 = MemoryDef(7) +; CHECK-NEXT: call void @clobber8 + call void @clobber8(i8* %after) + +; FIXME: MemoryUse(7) +; CHECK: MemoryUse(5) +; CHECK-NEXT: %4 = load + %4 = load i8, i8* %after, align 4, !invariant.group !0 + br i1 undef, label %Ret, label %Loop.Body + +Ret: + ret i8 %3 +} + +define i8 @loop4(i8* %p) { +entry: +; CHECK: 1 = MemoryDef(liveOnEntry) +; CHECK-NEXT: store i8 + store i8 4, i8* %p, !invariant.group !0 +; CHECK: 2 = MemoryDef(1) +; CHECK-NEXT: call void @clobber + call void @clobber8(i8* %p) + %after = call i8* @llvm.invariant.group.barrier(i8* %p) + br i1 undef, label %Loop.Pre, label %Loop.End + +Loop.Pre: +; CHECK: MemoryUse(2) +; CHECK-NEXT: %0 = load i8 + %0 = load i8, i8* %after, !invariant.group !0 + br label %Loop.Body +Loop.Body: +; CHECK: 4 = MemoryPhi({Loop.Pre,2},{Loop.Body,3},{Loop.End,5}) +; CHECK-NEXT: MemoryUse(4) +; CHECK-NEXT: %1 = load i8 + %1 = load i8, i8* %after, !invariant.group !0 + +; FIXME: MemoryUse(2) +; CHECK: MemoryUse(4) +; CHECK-NEXT: %2 = load i8 + %2 = load i8, i8* %p, !invariant.group !0 + +; CHECK: 3 = MemoryDef(4) + store i8 4, i8* %after, !invariant.group !0 + br i1 undef, label %Loop.End, label %Loop.Body + +Loop.End: +; CHECK: 5 = MemoryPhi({entry,2},{Loop.Body,3}) +; CHECK-NEXT: MemoryUse(5) +; CHECK-NEXT: %3 = load + %3 = load i8, i8* %after, align 4, !invariant.group !0 + +; FIXME: MemoryUse(2) +; CHECK: MemoryUse(5) +; CHECK-NEXT: %4 = load + %4 = load i8, i8* %p, align 4, !invariant.group !0 + br i1 undef, label %Ret, label %Loop.Body + +Ret: + ret i8 %3 +} + declare i8* @llvm.invariant.group.barrier(i8*) +declare void @clobber(i32*) +declare void @clobber8(i8*) + !0 = !{!"group1"} |
