; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -jump-threading -S < %s | FileCheck %s declare i32 @f1() declare i32 @f2() declare void @f3() ; trunc(and) should be simplified define i32 @test(i1 %cond0) { ; CHECK-LABEL: @test( ; CHECK-NEXT: br i1 [[COND0:%.*]], label [[T1:%.*]], label [[F1:%.*]] ; CHECK: T1: ; CHECK-NEXT: [[V1:%.*]] = call i32 @f1() ; CHECK-NEXT: br label [[F2:%.*]] ; CHECK: F1: ; CHECK-NEXT: [[V2:%.*]] = call i32 @f2() ; CHECK-NEXT: br label [[F2]] ; CHECK: F2: ; CHECK-NEXT: [[A:%.*]] = phi i32 [ 10, [[T1]] ], [ 0, [[F1]] ] ; CHECK-NEXT: [[B:%.*]] = phi i32 [ [[V1]], [[T1]] ], [ [[V2]], [[F1]] ] ; CHECK-NEXT: [[AND:%.*]] = and i32 [[A]], 1 ; CHECK-NEXT: ret i32 [[B]] ; br i1 %cond0, label %T1, label %F1 T1: %v1 = call i32 @f1() br label %Merge F1: %v2 = call i32 @f2() br label %Merge Merge: %A = phi i32 [10, %T1], [0, %F1] %B = phi i32 [%v1, %T1], [%v2, %F1] %And = and i32 %A, 1 %cond = trunc i32 %And to i1 br i1 %cond, label %T2, label %F2 T2: call void @f3() ret i32 %B F2: ret i32 %B } ; trunc(select) should be simplified define i32 @test2(i1 %cond0) { ; CHECK-LABEL: @test2( ; CHECK-NEXT: br i1 [[COND0:%.*]], label [[T1:%.*]], label [[F1:%.*]] ; CHECK: T1: ; CHECK-NEXT: [[V1:%.*]] = call i32 @f1() ; CHECK-NEXT: br label [[F2:%.*]] ; CHECK: F1: ; CHECK-NEXT: [[V2:%.*]] = call i32 @f2() ; CHECK-NEXT: br label [[F2]] ; CHECK: F2: ; CHECK-NEXT: [[A:%.*]] = phi i1 [ true, [[T1]] ], [ false, [[F1]] ] ; CHECK-NEXT: [[B:%.*]] = phi i32 [ [[V1]], [[T1]] ], [ [[V2]], [[F1]] ] ; CHECK-NEXT: [[A2:%.*]] = xor i1 [[A]], true ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[A2]], i32 10, i32 0 ; CHECK-NEXT: ret i32 [[B]] ; br i1 %cond0, label %T1, label %F1 T1: %v1 = call i32 @f1() br label %Merge F1: %v2 = call i32 @f2() br label %Merge Merge: %A = phi i1 [1, %T1], [0, %F1] %B = phi i32 [%v1, %T1], [%v2, %F1] %A2 = xor i1 %A, 1 %sel = select i1 %A2, i32 10, i32 0 %cond = trunc i32 %sel to i1 br i1 %cond, label %T2, label %F2 T2: call void @f3() ret i32 %B F2: ret i32 %B }