1 ; RUN: llc < %s -march=nvptx64 -mcpu=sm_20 | FileCheck %s 2 3 target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64" 4 target triple = "nvptx64-unknown-unknown" 5 6 ; Compiled from the following CUDA code: 7 ; 8 ; #pragma nounroll 9 ; for (int i = 0; i < 2; ++i) 10 ; output[i] = input[i]; 11 define void @nounroll(float* %input, float* %output) { 12 ; CHECK-LABEL: .visible .func nounroll( 13 entry: 14 br label %for.body 15 16 for.body: 17 ; CHECK: .pragma "nounroll" 18 %i.06 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 19 %idxprom = sext i32 %i.06 to i64 20 %arrayidx = getelementptr inbounds float, float* %input, i64 %idxprom 21 %0 = load float, float* %arrayidx, align 4 22 ; CHECK: ld.f32 23 %arrayidx2 = getelementptr inbounds float, float* %output, i64 %idxprom 24 store float %0, float* %arrayidx2, align 4 25 ; CHECK: st.f32 26 %inc = add nuw nsw i32 %i.06, 1 27 %exitcond = icmp eq i32 %inc, 2 28 br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0 29 ; CHECK-NOT: ld.f32 30 ; CHECK-NOT: st.f32 31 32 for.end: 33 ret void 34 } 35 36 !0 = distinct !{!0, !1} 37 !1 = !{!"llvm.loop.unroll.disable"} 38
