| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -ipsccp -S | FileCheck %s |
| 2 | |
| 3 | ; CHECK-LABEL: @testf( |
| 4 | ; CHECK: ret i32 undef |
| 5 | ; |
| 6 | define internal i32 @testf() { |
| 7 | entry: |
| 8 | br i1 undef, label %if.then, label %if.end |
| 9 | |
| 10 | if.then: ; preds = %entry, %if.then |
| 11 | br label %if.end |
| 12 | |
| 13 | if.end: ; preds = %if.then1, %entry |
| 14 | ret i32 10 |
| 15 | } |
| 16 | |
| 17 | ; CHECK-LABEL: @test1( |
| 18 | ; CHECK: ret i32 undef |
| 19 | ; |
| 20 | define internal i32 @test1() { |
| 21 | entry: |
| 22 | br label %if.then |
| 23 | |
| 24 | if.then: ; preds = %entry, %if.then |
| 25 | %call = call i32 @testf() |
| 26 | %res = icmp eq i32 %call, 10 |
| 27 | br i1 %res, label %ret1, label %ret2 |
| 28 | |
| 29 | ret1: ; preds = %if.then, %entry |
| 30 | ret i32 99 |
| 31 | |
| 32 | ret2: ; preds = %if.then, %entry |
| 33 | ret i32 0 |
| 34 | } |
| 35 | |
| 36 | ; CHECK-LABEL: @main( |
| 37 | ; CHECK-NEXT: %res = call i32 @test1() |
| 38 | ; CHECK-NEXT: ret i32 99 |
| 39 | ; |
| 40 | define i32 @main() { |
| 41 | %res = call i32 @test1() |
| 42 | ret i32 %res |
| 43 | } |