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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -passes=gvn -dom-tree-reachability-max-bbs-to-explore=1 -S < %s | FileCheck %s
define i8 @f(i1 %arg0, i1 %arg1, i1 %arg2) {
; CHECK-LABEL: define i8 @f(
; CHECK-SAME: i1 [[ARG0:%.*]], i1 [[ARG1:%.*]], i1 [[ARG2:%.*]]) {
; CHECK-NEXT: [[BB:.*:]]
; CHECK-NEXT: br i1 [[ARG2]], label %[[BB2:.*]], label %[[BB11:.*]]
; CHECK: [[BB11]]:
; CHECK-NEXT: br label %[[BB3:.*]]
; CHECK: [[BB2]]:
; CHECK-NEXT: br label %[[BB3]]
; CHECK: [[BB3]]:
; CHECK-NEXT: [[CALL:%.*]] = tail call noalias ptr @_Znwm(i64 2)
; CHECK-NEXT: br label %[[BB4:.*]]
; CHECK: [[BB4]]:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ null, %[[BB4]] ], [ [[CALL]], %[[BB3]] ]
; CHECK-NEXT: store i8 2, ptr [[PHI]], align 4
; CHECK-NEXT: br i1 [[ARG0]], label %[[BB5:.*]], label %[[BB4]]
; CHECK: [[BB5]]:
; CHECK-NEXT: br i1 [[ARG1]], label %[[BB7:.*]], label %[[BB6:.*]]
; CHECK: [[BB6]]:
; CHECK-NEXT: call void @use(i64 undef)
; CHECK-NEXT: br label %[[BB9:.*]]
; CHECK: [[BB7]]:
; CHECK-NEXT: [[LOAD8:%.*]] = load i8, ptr [[CALL]], align 4
; CHECK-NEXT: br label %[[BB9]]
; CHECK: [[BB9]]:
; CHECK-NEXT: [[PHI10:%.*]] = phi i8 [ [[LOAD8]], %[[BB7]] ], [ 4, %[[BB6]] ]
; CHECK-NEXT: ret i8 [[PHI10]]
;
bb:
br i1 %arg2, label %bb2, label %bb11
bb11:
br label %bb3
bb2:
br label %bb3
bb3:
%call = tail call noalias ptr @_Znwm(i64 2)
br label %bb4
bb4:
%phi = phi ptr [ null, %bb4 ], [ %call, %bb3 ]
store i8 2, ptr %phi, align 4
br i1 %arg0, label %bb5, label %bb4
bb5:
br i1 %arg1, label %bb7, label %bb6
bb6:
%load = load i64, ptr %call, align 4
call void @use(i64 %load)
br label %bb9
bb7:
%load8 = load i8, ptr %call, align 4
br label %bb9
bb9:
%phi10 = phi i8 [ %load8, %bb7 ], [ 4, %bb6 ]
ret i8 %phi10
}
declare ptr @_Znwm(i64)
declare void @use(i64)
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