| ; RUN: llc < %s -march=nvptx64 -mcpu=sm_35 -disable-cgp | FileCheck %s |
| ; Disable CGP which also folds branches, so that only BranchFolding is under |
| ; the spotlight. |
| |
| target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64" |
| target triple = "nvptx64-nvidia-cuda" |
| |
| define void @foo(i32 %x, float* %output) { |
| ; CHECK-LABEL: .visible .func foo( |
| ; CHECK-NOT: bra.uni |
| ; CHECK-NOT: LBB0_ |
| %1 = icmp eq i32 %x, 1 |
| br i1 %1, label %then, label %else |
| |
| then: |
| br label %merge |
| |
| else: |
| br label %merge |
| |
| merge: |
| store float 2.0, float* %output |
| ret void |
| } |
| |
| ; PR24299. no crash |
| define ptx_kernel void @hoge() #0 { |
| ; CHECK-LABEL: .visible .entry hoge( |
| bb: |
| br i1 undef, label %bb1, label %bb4 |
| |
| bb1: ; preds = %bb1, %bb |
| %tmp = phi i64 [ %tmp2, %bb1 ], [ undef, %bb ] |
| %tmp2 = add nsw i64 %tmp, 1 |
| %tmp3 = icmp sle i64 %tmp, 0 |
| br i1 %tmp3, label %bb1, label %bb4 |
| |
| bb4: ; preds = %bb4, %bb1, %bb |
| br label %bb4 |
| } |
