; RUN: opt -disable-output -aa-pipeline=basic-aa -passes='loop-mssa(licm),print<memoryssa>' < %s 2>&1 | FileCheck %s target triple = "x86_64-unknown-linux-gnu" ; CHECK-LABEL: @main() ; CHECK: 5 = MemoryPhi( ; CHECK-NOT: 7 = MemoryPhi( @v_67 = external dso_local global i32, align 1 @v_76 = external dso_local global i16, align 1 @v_86 = external dso_local global i16 *, align 1 define dso_local void @main() { entry: %v_59 = alloca i16, align 2 br label %for.cond for.cond: ; preds = %for.body, %entry br i1 undef, label %for.body, label %for.end for.body: ; preds = %for.cond store i16 undef, i16* %v_59, align 2 br label %for.cond for.end: ; preds = %for.cond br i1 undef, label %if.else568, label %cond.end82 cond.false69: ; No predecessors! br label %cond.end82 cond.end82: ; preds = %cond.false69, %cond.true55 br i1 undef, label %if.else568, label %land.lhs.true87 land.lhs.true87: ; preds = %cond.end82 br i1 undef, label %if.then88, label %if.else568 if.then88: ; preds = %land.lhs.true87 store i16 * @v_76, i16 ** @v_86, align 1 br label %if.end569 if.else568: ; preds = %land.lhs.true87, %cond.end82, %for.end store volatile i32 undef, i32 * @v_67, align 1 br label %if.end569 if.end569: ; preds = %if.else568, %if.then88 ret void } ; CHECK-LABEL: @f() ; CHECK: 7 = MemoryPhi( ; CHECK: 6 = MemoryPhi( ; CHECK: 10 = MemoryPhi( ; CHECK: 9 = MemoryPhi( ; CHECK: 8 = MemoryPhi( define void @f() { entry: %e = alloca i16, align 1 br label %lbl1 lbl1: ; preds = %if.else, %for.end5, %entry store i16 undef, i16* %e, align 1 %0 = load i16, i16* %e, align 1 %call = call i16 @g(i16 %0) br i1 undef, label %for.end, label %if.else for.end: ; preds = %if.then br i1 true, label %for.cond2, label %lbl2 lbl2: ; preds = %for.body4, %if.end br label %for.cond2 for.cond2: ; preds = %lbl3 br i1 undef, label %for.body4, label %for.end5 for.body4: ; preds = %for.cond2 br label %lbl2 for.end5: ; preds = %for.cond2 switch i32 undef, label %unreachable [ i32 0, label %if.end12 i32 2, label %lbl1 ] if.else: ; preds = %lbl1 switch i32 undef, label %unreachable [ i32 0, label %if.end12 i32 2, label %lbl1 ] if.end12: ; preds = %cleanup.cont11s, %cleanup.cont call void @llvm.lifetime.end.p0i8(i64 1, i8* undef) ret void unreachable: ; preds = %if.else, %for.end5 unreachable } declare i16 @g(i16) ; Function Attrs: argmemonly nounwind willreturn declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture)