90 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=jump-threading -S < %s | FileCheck %s3 4declare i32 @f1()5declare i32 @f2()6declare void @f3()7 8; trunc(and) should be simplified9define i32 @test(i1 %cond0) {10; CHECK-LABEL: @test(11; CHECK-NEXT: br i1 [[COND0:%.*]], label [[T1:%.*]], label [[F1:%.*]]12; CHECK: T1:13; CHECK-NEXT: [[V1:%.*]] = call i32 @f1()14; CHECK-NEXT: br label [[F2:%.*]]15; CHECK: F1:16; CHECK-NEXT: [[V2:%.*]] = call i32 @f2()17; CHECK-NEXT: br label [[F2]]18; CHECK: F2:19; CHECK-NEXT: [[A:%.*]] = phi i32 [ 10, [[T1]] ], [ 0, [[F1]] ]20; CHECK-NEXT: [[B:%.*]] = phi i32 [ [[V1]], [[T1]] ], [ [[V2]], [[F1]] ]21; CHECK-NEXT: [[AND:%.*]] = and i32 [[A]], 122; CHECK-NEXT: ret i32 [[B]]23;24 br i1 %cond0, label %T1, label %F125T1:26 %v1 = call i32 @f1()27 br label %Merge28 29F1:30 %v2 = call i32 @f2()31 br label %Merge32 33Merge:34 %A = phi i32 [10, %T1], [0, %F1]35 %B = phi i32 [%v1, %T1], [%v2, %F1]36 %And = and i32 %A, 137 %cond = trunc i32 %And to i138 br i1 %cond, label %T2, label %F239 40T2:41 call void @f3()42 ret i32 %B43 44F2:45 ret i32 %B46}47 48; trunc(select) should be simplified49define i32 @test2(i1 %cond0) {50; CHECK-LABEL: @test2(51; CHECK-NEXT: br i1 [[COND0:%.*]], label [[T1:%.*]], label [[F1:%.*]]52; CHECK: T1:53; CHECK-NEXT: [[V1:%.*]] = call i32 @f1()54; CHECK-NEXT: br label [[F2:%.*]]55; CHECK: F1:56; CHECK-NEXT: [[V2:%.*]] = call i32 @f2()57; CHECK-NEXT: br label [[F2]]58; CHECK: F2:59; CHECK-NEXT: [[A:%.*]] = phi i1 [ true, [[T1]] ], [ false, [[F1]] ]60; CHECK-NEXT: [[B:%.*]] = phi i32 [ [[V1]], [[T1]] ], [ [[V2]], [[F1]] ]61; CHECK-NEXT: [[A2:%.*]] = xor i1 [[A]], true62; CHECK-NEXT: [[SEL:%.*]] = select i1 [[A2]], i32 10, i32 063; CHECK-NEXT: ret i32 [[B]]64;65 br i1 %cond0, label %T1, label %F166T1:67 %v1 = call i32 @f1()68 br label %Merge69 70F1:71 %v2 = call i32 @f2()72 br label %Merge73 74Merge:75 %A = phi i1 [1, %T1], [0, %F1]76 %B = phi i32 [%v1, %T1], [%v2, %F1]77 %A2 = xor i1 %A, 178 %sel = select i1 %A2, i32 10, i32 079 %cond = trunc i32 %sel to i180 br i1 %cond, label %T2, label %F281 82T2:83 call void @f3()84 ret i32 %B85 86F2:87 ret i32 %B88}89 90