| ; RUN: opt < %s -passes=ipsccp -S | FileCheck %s |
| |
| ; CHECK-LABEL: @testf( |
| ; CHECK: ret i32 undef |
| ; |
| define internal i32 @testf(i1 %c) { |
| entry: |
| br i1 %c, label %if.cond, label %if.end |
| |
| if.cond: |
| br i1 undef, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry, %if.then |
| ret i32 11 |
| |
| if.end: ; preds = %if.then1, %entry |
| ret i32 10 |
| } |
| |
| ; CHECK-LABEL: @test1( |
| ; CHECK: ret i32 undef |
| ; |
| define internal i32 @test1(i1 %c) { |
| entry: |
| br label %if.then |
| |
| if.then: ; preds = %entry, %if.then |
| %call = call i32 @testf(i1 %c) |
| %res = icmp eq i32 %call, 10 |
| br i1 %res, label %ret1, label %ret2 |
| |
| ret1: ; preds = %if.then, %entry |
| ret i32 99 |
| |
| ret2: ; preds = %if.then, %entry |
| ret i32 0 |
| } |
| |
| ; CHECK-LABEL: @main( |
| ; CHECK-NEXT: %res = call i32 @test1( |
| ; CHECK-NEXT: ret i32 99 |
| ; |
| define i32 @main(i1 %c) { |
| %res = call i32 @test1(i1 %c) |
| ret i32 %res |
| } |
