1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -S -simplifycfg -debug-pass=Details -enable-new-pm=0 2>&1 | FileCheck %s 3 4;; Check the report from the pass manager, telling us whether simplifycfg 5;; reported the "changed" status correctly: 6; CHECK: Made Modification 'Simplify the CFG' on Function 'wibble'... 7 8declare i32 @blam(i8*, i32) 9 10define i32 @wibble(i8* %arg, i8** %arg1) { 11; CHECK-LABEL: @wibble( 12; CHECK-NEXT: bb: 13; CHECK-NEXT: br label [[BB2:%.*]] 14; CHECK: bb2: 15; CHECK-NEXT: [[BORG:%.*]] = phi i32 [ 0, [[BB:%.*]] ], [ [[BORG]], [[BB8:%.*]] ] 16; CHECK-NEXT: [[BORG3:%.*]] = phi i32 [ 8, [[BB]] ], [ [[BORG10:%.*]], [[BB8]] ] 17; CHECK-NEXT: [[BORG4:%.*]] = tail call i32 @blam(i8* [[ARG:%.*]], i32 [[BORG]]) 18; CHECK-NEXT: [[BORG5:%.*]] = icmp eq i32 [[BORG4]], 0 19; CHECK-NEXT: br i1 [[BORG5]], label [[BB8]], label [[BB6:%.*]] 20; CHECK: bb6: 21; CHECK-NEXT: [[BORG7:%.*]] = load i8*, i8** [[ARG1:%.*]], align 4 22; CHECK-NEXT: br label [[BB8]] 23; CHECK: bb8: 24; CHECK-NEXT: [[BORG10]] = phi i32 [ [[BORG4]], [[BB6]] ], [ [[BORG3]], [[BB2]] ] 25; CHECK-NEXT: [[BORG11:%.*]] = icmp ult i32 [[BORG]], 2 26; CHECK-NEXT: br i1 [[BORG11]], label [[BB2]], label [[BB12:%.*]] 27; CHECK: bb12: 28; CHECK-NEXT: ret i32 1 29; 30bb: 31 br label %bb2 32 33bb2: ; preds = %bb8, %bb 34 %borg = phi i32 [ 0, %bb ], [ %borg9, %bb8 ] 35 %borg3 = phi i32 [ 8, %bb ], [ %borg10, %bb8 ] 36 %borg4 = tail call i32 @blam(i8* %arg, i32 %borg) 37 %borg5 = icmp eq i32 %borg4, 0 38 br i1 %borg5, label %bb8, label %bb6 39 40bb6: ; preds = %bb2 41 %borg7 = load i8*, i8** %arg1, align 4 42 br label %bb8 43 44bb8: ; preds = %bb6, %bb2 45 %borg9 = phi i32 [ %borg, %bb6 ], [ %borg, %bb2 ] 46 %borg10 = phi i32 [ %borg4, %bb6 ], [ %borg3, %bb2 ] 47 %borg11 = icmp ult i32 %borg9, 2 48 br i1 %borg11, label %bb2, label %bb12 49 50bb12: ; preds = %bb8 51 ret i32 1 52} 53