1 ; RUN: opt < %s -simplifycfg -S | FileCheck %s 2 3 ; Use a select to make this a single BB. 4 ; Also, make sure the profile metadata is propagated to the select (PR26636). 5 6 define i32 @FoldTwoEntryPHINode(i1 %C, i32 %V1, i32 %V2, i16 %V3) { 7 entry: 8 br i1 %C, label %then, label %else, !prof !0, !unpredictable !1 9 then: 10 %V4 = or i32 %V2, %V1 11 br label %Cont 12 else: 13 %V5 = sext i16 %V3 to i32 14 br label %Cont 15 Cont: 16 %V6 = phi i32 [ %V5, %else ], [ %V4, %then ] 17 call i32 @FoldTwoEntryPHINode( i1 false, i32 0, i32 0, i16 0 ) 18 ret i32 %V1 19 20 ; CHECK-LABEL: @FoldTwoEntryPHINode( 21 ; CHECK-NEXT: entry: 22 ; CHECK-NEXT: %V5 = sext i16 %V3 to i32 23 ; CHECK-NEXT: %V4 = or i32 %V2, %V1 24 ; CHECK-NEXT: %V6 = select i1 %C, i32 %V4, i32 %V5, !prof !0, !unpredictable !1 25 ; CHECK-NEXT: %0 = call i32 @FoldTwoEntryPHINode(i1 false, i32 0, i32 0, i16 0) 26 ; CHECK-NEXT: ret i32 %V1 27 } 28 29 !0 = !{!"branch_weights", i32 3, i32 5} 30 !1 = !{} 31 32 ; CHECK: !0 = !{!"branch_weights", i32 3, i32 5} 33 ; CHECK: !1 = !{} 34 35
