| ; RUN: opt -disable-output -licm -enable-new-pm=0 -print-memoryssa -enable-mssa-loop-dependency=true < %s 2>&1 | FileCheck %s |
| ; RUN: opt -disable-output -aa-pipeline=basic-aa -passes='loop-mssa(licm),print<memoryssa>' < %s 2>&1 | FileCheck %s |
| |
| ; CHECK-LABEL: @f() |
| |
| ; CHECK: lbl1: |
| ; CHECK-NEXT: ; [[NO4:.*]] = MemoryPhi({entry,liveOnEntry},{lbl1.backedge,[[NO9:.*]]}) |
| ; CHECK-NEXT: ; [[NO2:.*]] = MemoryDef([[NO4]]) |
| ; CHECK-NEXT: call void @g() |
| ; CHECK-NEXT: br i1 undef, label %for.end, label %if.else |
| |
| ; CHECK: for.end: |
| ; CHECK-NEXT: br i1 undef, label %lbl3, label %lbl2 |
| |
| ; CHECK: lbl2: |
| ; CHECK-NEXT: ; [[NO8:.*]] = MemoryPhi({lbl3,[[NO7:.*]]},{for.end,[[NO2]]}) |
| ; CHECK-NEXT: br label %lbl3 |
| |
| ; CHECK: lbl3: |
| ; CHECK-NEXT: [[NO7]] = MemoryPhi({lbl2,[[NO8]]},{for.end,2}) |
| |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: MemoryUse([[NO7]]) |
| ; CHECK-NEXT: %cleanup.dest = load i32, i32* undef, align 1 |
| |
| ; CHECK: lbl1.backedge: |
| ; CHECK-NEXT: [[NO9]] = MemoryPhi({cleanup,[[NO7]]},{if.else,2}) |
| ; CHECK-NEXT: br label %lbl1 |
| |
| ; CHECK: cleanup.cont: |
| ; CHECK-NEXT: ; [[NO6:.*]] = MemoryDef([[NO7]]) |
| ; CHECK-NEXT: store i16 undef, i16* %e, align 1 |
| ; CHECK-NEXT: 3 = MemoryDef([[NO6]]) |
| ; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* null) |
| |
| define void @f() { |
| entry: |
| %e = alloca i16, align 1 |
| br label %lbl1 |
| |
| lbl1: ; preds = %if.else, %cleanup, %entry |
| store i16 undef, i16* %e, align 1 |
| call void @g() |
| br i1 undef, label %for.end, label %if.else |
| |
| for.end: ; preds = %lbl1 |
| br i1 undef, label %lbl3, label %lbl2 |
| |
| lbl2: ; preds = %lbl3, %for.end |
| br label %lbl3 |
| |
| lbl3: ; preds = %lbl2, %for.end |
| br i1 undef, label %lbl2, label %cleanup |
| |
| cleanup: ; preds = %lbl3 |
| %cleanup.dest = load i32, i32* undef, align 1 |
| %switch = icmp ult i32 %cleanup.dest, 1 |
| br i1 %switch, label %cleanup.cont, label %lbl1 |
| |
| cleanup.cont: ; preds = %cleanup |
| call void @llvm.lifetime.end.p0i8(i64 1, i8* null) |
| ret void |
| |
| if.else: ; preds = %lbl1 |
| br label %lbl1 |
| } |
| |
| declare void @g() |
| |
| ; Function Attrs: argmemonly nounwind willreturn |
| declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) |
