1; RUN: opt < %s -jump-threading -mem2reg -instcombine -simplifycfg -S | FileCheck %s 2 3declare i32 @f1() 4declare i32 @f2() 5declare void @f3() 6 7define i32 @test(i1 %cond, i1 %cond2, i1 %cond3) { 8; CHECK: test 9 br i1 %cond, label %T1, label %F1 10 11; CHECK-NOT: T1: 12T1: 13 %v1 = call i32 @f1() 14 br label %Merge 15 16F1: 17 %v2 = call i32 @f2() 18 br label %Merge 19 20Merge: 21; CHECK: Merge: 22; CHECK: %v1 = call i32 @f1() 23; CHECK-NEXT: %D = and i1 %cond2, %cond3 24; CHECK-NEXT: br i1 %D 25 %A = phi i1 [true, %T1], [false, %F1] 26 %B = phi i32 [%v1, %T1], [%v2, %F1] 27 %C = and i1 %A, %cond2 28 %D = and i1 %C, %cond3 29 br i1 %D, label %T2, label %F2 30 31T2: 32 call void @f3() 33 ret i32 %B 34 35F2: 36 ret i32 %B 37} 38