1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 2; RUN: opt < %s -S | FileCheck %s 3 4define i32 @phi_after_label(i1 %cc) { 5; CHECK-LABEL: define i32 @phi_after_label( 6; CHECK-SAME: i1 [[CC:%.*]]) { 7; CHECK-NEXT: [[ENTRY:.*]]: 8; CHECK-NEXT: br i1 [[CC]], label %[[THEN:.*]], label %[[END:.*]] 9; CHECK: [[THEN]]: 10; CHECK-NEXT: br label %[[END]] 11; CHECK: [[END]]: 12; CHECK-NEXT: [[R:%.*]] = phi i32 [ 0, %[[ENTRY]] ], [ 1, %[[THEN]] ] 13; CHECK-NEXT: ret i32 [[R]] 14; 15entry: 16 br i1 %cc, label %then, label %end 17 18then: 19 br label %end 20 21end: 22 %r = phi i32 [ 0, %entry ], [ 1, %then ] 23 ret i32 %r 24} 25 26define void @phi_before_label(i32 %bound) { 27; CHECK-LABEL: define void @phi_before_label( 28; CHECK-SAME: i32 [[BOUND:%.*]]) { 29; CHECK-NEXT: [[ENTRY:.*]]: 30; CHECK-NEXT: br label %[[LOOP:.*]] 31; CHECK: [[LOOP]]: 32; CHECK-NEXT: [[CTR:%.*]] = phi i32 [ 0, %[[ENTRY]] ], [ [[CTR_NEXT:%.*]], %[[LOOP]] ] 33; CHECK-NEXT: [[CTR_NEXT]] = add i32 [[CTR]], 1 34; CHECK-NEXT: [[CC:%.*]] = icmp ult i32 [[CTR_NEXT]], [[BOUND]] 35; CHECK-NEXT: br i1 [[CC]], label %[[LOOP]], label %[[END:.*]] 36; CHECK: [[END]]: 37; CHECK-NEXT: ret void 38; 39entry: 40 br label %loop 41 42loop: 43 %ctr = phi i32 [ 0, %entry ], [ %ctr.next, %loop ] 44 %ctr.next = add i32 %ctr, 1 45 %cc = icmp ult i32 %ctr.next, %bound 46 br i1 %cc, label %loop, label %end 47 48end: 49 ret void 50} 51 52define i32 @phi_after_label_unnamed(i1 %cc) { 53; CHECK-LABEL: define i32 @phi_after_label_unnamed( 54; CHECK-SAME: i1 [[CC:%.*]]) { 55; CHECK-NEXT: br i1 [[CC]], label %[[BB1:.*]], label %[[BB2:.*]] 56; CHECK: [[BB1]]: 57; CHECK-NEXT: br label %[[BB2]] 58; CHECK: [[BB2]]: 59; CHECK-NEXT: [[R:%.*]] = phi i32 [ 0, [[TMP0:%.*]] ], [ 1, %[[BB1]] ] 60; CHECK-NEXT: ret i32 [[R]] 61; 620: 63 br i1 %cc, label %1, label %2 64 651: 66 br label %2 67 682: 69 %r = phi i32 [ 0, %0 ], [ 1, %1 ] 70 ret i32 %r 71} 72