| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame] | 1 | ; RUN: opt -jump-threading -S < %s | FileCheck %s |
| 2 | ; RUN: opt -passes=jump-threading -S < %s | FileCheck %s |
| 3 | |
| 4 | define void @test() { |
| 5 | ; CHECK-LABEL: @test() |
| 6 | bb: |
| 7 | %tmp = call i32 @a() |
| 8 | %tmp1 = icmp eq i32 %tmp, 1 |
| 9 | br i1 %tmp1, label %bb5, label %bb2 |
| 10 | ; CHECK: br i1 %tmp1,{{.*}} !prof ![[PROF1:[0-9]+]] |
| 11 | |
| 12 | bb2: ; preds = %bb |
| 13 | %tmp3 = call i32 @b() |
| 14 | %tmp4 = icmp ne i32 %tmp3, 1 |
| 15 | br label %bb5 |
| 16 | ; CHECK: br i1 %tmp4, {{.*}} !prof ![[PROF2:[0-9]+]] |
| 17 | |
| 18 | bb5: ; preds = %bb2, %bb |
| 19 | %tmp6 = phi i1 [ false, %bb ], [ %tmp4, %bb2 ] |
| 20 | br i1 %tmp6, label %bb8, label %bb7, !prof !0 |
| 21 | |
| 22 | bb7: ; preds = %bb5 |
| 23 | call void @bar() |
| 24 | br label %bb8 |
| 25 | |
| 26 | bb8: ; preds = %bb7, %bb5 |
| 27 | ret void |
| 28 | } |
| 29 | |
| 30 | define void @test_single_pred1() { |
| 31 | ; CHECK-LABEL: @test_single_pred1() |
| 32 | bb: |
| 33 | %tmp = call i32 @a() |
| 34 | %tmp1 = icmp eq i32 %tmp, 1 |
| 35 | br i1 %tmp1, label %bb5_1, label %bb2 |
| 36 | ; CHECK: br i1 %tmp1,{{.*}} !prof ![[PROF1:[0-9]+]] |
| 37 | |
| 38 | bb5_1: |
| 39 | br label %bb5; |
| 40 | |
| 41 | bb2: |
| 42 | %tmp3 = call i32 @b() |
| 43 | %tmp4 = icmp ne i32 %tmp3, 1 |
| 44 | br label %bb5 |
| 45 | ; CHECK: br i1 %tmp4, {{.*}} !prof ![[PROF2:[0-9]+]] |
| 46 | |
| 47 | bb5: |
| 48 | %tmp6 = phi i1 [ false, %bb5_1 ], [ %tmp4, %bb2 ] |
| 49 | br i1 %tmp6, label %bb8, label %bb7, !prof !0 |
| 50 | |
| 51 | bb7: |
| 52 | call void @bar() |
| 53 | br label %bb8 |
| 54 | |
| 55 | bb8: |
| 56 | ret void |
| 57 | } |
| 58 | |
| 59 | define void @test_single_pred2() { |
| 60 | ; CHECK-LABEL: @test_single_pred2() |
| 61 | bb: |
| 62 | %tmp = call i32 @a() |
| 63 | %tmp1 = icmp eq i32 %tmp, 1 |
| 64 | br i1 %tmp1, label %bb5_1, label %bb2 |
| 65 | ; CHECK: br i1 %tmp1,{{.*}} !prof ![[PROF1:[0-9]+]] |
| 66 | |
| 67 | bb5_1: |
| 68 | br label %bb5_2; |
| 69 | |
| 70 | bb5_2: |
| 71 | br label %bb5; |
| 72 | |
| 73 | bb2: |
| 74 | %tmp3 = call i32 @b() |
| 75 | %tmp4 = icmp ne i32 %tmp3, 1 |
| 76 | br label %bb5 |
| 77 | ; CHECK: br i1 %tmp4, {{.*}} !prof ![[PROF2:[0-9]+]] |
| 78 | |
| 79 | bb5: |
| 80 | %tmp6 = phi i1 [ false, %bb5_2 ], [ %tmp4, %bb2 ] |
| 81 | br i1 %tmp6, label %bb8, label %bb7, !prof !0 |
| 82 | |
| 83 | bb7: |
| 84 | call void @bar() |
| 85 | br label %bb8 |
| 86 | |
| 87 | bb8: |
| 88 | ret void |
| 89 | } |
| 90 | |
| 91 | declare void @bar() |
| 92 | |
| 93 | declare i32 @a() |
| 94 | |
| 95 | declare i32 @b() |
| 96 | |
| 97 | !0 = !{!"branch_weights", i32 2146410443, i32 1073205} |
| 98 | ;CHECK: ![[PROF1]] = !{!"branch_weights", i32 1073205, i32 2146410443} |
| 99 | ;CHECK: ![[PROF2]] = !{!"branch_weights", i32 2146410443, i32 1073205} |