| Benjamin Kramer | 272f2b0 | 2011-03-29 22:06:41 +0000 | [diff] [blame] | 1 | ; RUN: opt -S -instcombine < %s | FileCheck %s |
| 2 | |
| 3 | declare void @foo() |
| 4 | |
| 5 | define void @test1(i32 %a, i32 %b) nounwind { |
| 6 | %1 = icmp slt i32 %a, 0 |
| 7 | %2 = icmp slt i32 %b, 0 |
| 8 | %or.cond = or i1 %1, %2 |
| 9 | br i1 %or.cond, label %if.then, label %if.end |
| 10 | |
| 11 | ; CHECK: @test1 |
| 12 | ; CHECK-NEXT: %1 = or i32 %a, %b |
| 13 | ; CHECK-NEXT: %2 = icmp slt i32 %1, 0 |
| 14 | ; CHECK-NEXT: br |
| 15 | |
| 16 | if.then: |
| 17 | tail call void @foo() nounwind |
| 18 | ret void |
| 19 | |
| 20 | if.end: |
| 21 | ret void |
| 22 | } |
| 23 | |
| 24 | define void @test2(i32 %a, i32 %b) nounwind { |
| 25 | %1 = icmp sgt i32 %a, -1 |
| 26 | %2 = icmp sgt i32 %b, -1 |
| 27 | %or.cond = or i1 %1, %2 |
| 28 | br i1 %or.cond, label %if.then, label %if.end |
| 29 | |
| 30 | ; CHECK: @test2 |
| 31 | ; CHECK-NEXT: %1 = and i32 %a, %b |
| 32 | ; CHECK-NEXT: %2 = icmp sgt i32 %1, -1 |
| 33 | ; CHECK-NEXT: br |
| 34 | |
| 35 | if.then: |
| 36 | tail call void @foo() nounwind |
| 37 | ret void |
| 38 | |
| 39 | if.end: |
| 40 | ret void |
| 41 | } |
| 42 | |
| 43 | define void @test3(i32 %a, i32 %b) nounwind { |
| 44 | %1 = icmp slt i32 %a, 0 |
| 45 | %2 = icmp slt i32 %b, 0 |
| 46 | %or.cond = and i1 %1, %2 |
| 47 | br i1 %or.cond, label %if.then, label %if.end |
| 48 | |
| 49 | ; CHECK: @test3 |
| 50 | ; CHECK-NEXT: %1 = and i32 %a, %b |
| 51 | ; CHECK-NEXT: %2 = icmp slt i32 %1, 0 |
| 52 | ; CHECK-NEXT: br |
| 53 | |
| 54 | if.then: |
| 55 | tail call void @foo() nounwind |
| 56 | ret void |
| 57 | |
| 58 | if.end: |
| 59 | ret void |
| 60 | } |
| 61 | |
| 62 | define void @test4(i32 %a, i32 %b) nounwind { |
| 63 | %1 = icmp sgt i32 %a, -1 |
| 64 | %2 = icmp sgt i32 %b, -1 |
| 65 | %or.cond = and i1 %1, %2 |
| 66 | br i1 %or.cond, label %if.then, label %if.end |
| 67 | |
| 68 | ; CHECK: @test4 |
| 69 | ; CHECK-NEXT: %1 = or i32 %a, %b |
| 70 | ; CHECK-NEXT: %2 = icmp sgt i32 %1, -1 |
| 71 | ; CHECK-NEXT: br |
| 72 | |
| 73 | if.then: |
| 74 | tail call void @foo() nounwind |
| 75 | ret void |
| 76 | |
| 77 | if.end: |
| 78 | ret void |
| 79 | } |