| Jingyue Wu | 3a04dc6 | 2015-07-29 18:59:09 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -march=nvptx64 -mcpu=sm_35 -disable-cgp | FileCheck %s |
| 2 | ; Disable CGP which also folds branches, so that only BranchFolding is under |
| 3 | ; the spotlight. |
| 4 | |
| 5 | target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64" |
| 6 | target triple = "nvptx64-nvidia-cuda" |
| 7 | |
| 8 | define void @foo(i32 %x, float* %output) { |
| 9 | ; CHECK-LABEL: .visible .func foo( |
| 10 | ; CHECK-NOT: bra.uni |
| 11 | ; CHECK-NOT: LBB0_ |
| 12 | %1 = icmp eq i32 %x, 1 |
| 13 | br i1 %1, label %then, label %else |
| 14 | |
| 15 | then: |
| 16 | br label %merge |
| 17 | |
| 18 | else: |
| 19 | br label %merge |
| 20 | |
| 21 | merge: |
| 22 | store float 2.0, float* %output |
| 23 | ret void |
| 24 | } |
| 25 | |
| 26 | ; PR24299. no crash |
| 27 | define ptx_kernel void @hoge() #0 { |
| 28 | ; CHECK-LABEL: .visible .entry hoge( |
| 29 | bb: |
| 30 | br i1 undef, label %bb1, label %bb4 |
| 31 | |
| 32 | bb1: ; preds = %bb1, %bb |
| 33 | %tmp = phi i64 [ %tmp2, %bb1 ], [ undef, %bb ] |
| 34 | %tmp2 = add nsw i64 %tmp, 1 |
| 35 | %tmp3 = icmp sle i64 %tmp, 0 |
| 36 | br i1 %tmp3, label %bb1, label %bb4 |
| 37 | |
| 38 | bb4: ; preds = %bb4, %bb1, %bb |
| 39 | br label %bb4 |
| 40 | } |