| ; RUN: opt -passes=loop-distribute -enable-loop-distribute=1 -S < %s | FileCheck %s |
| ; |
| ; Check that the disable_nonforced is honored by loop distribution. |
| ; |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| |
| ; CHECK-LABEL: @disable_nonforced( |
| ; CHECK-NOT: for.body.ldist1: |
| define void @disable_nonforced(ptr noalias %a, |
| ptr noalias %b, |
| ptr noalias %c, |
| ptr noalias %d, |
| ptr noalias %e) { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %ind = phi i64 [ 0, %entry ], [ %add, %for.body ] |
| |
| %arrayidxA = getelementptr inbounds i32, ptr %a, i64 %ind |
| %loadA = load i32, ptr %arrayidxA, align 4 |
| |
| %arrayidxB = getelementptr inbounds i32, ptr %b, i64 %ind |
| %loadB = load i32, ptr %arrayidxB, align 4 |
| |
| %mulA = mul i32 %loadB, %loadA |
| |
| %add = add nuw nsw i64 %ind, 1 |
| %arrayidxA_plus_4 = getelementptr inbounds i32, ptr %a, i64 %add |
| store i32 %mulA, ptr %arrayidxA_plus_4, align 4 |
| |
| %arrayidxD = getelementptr inbounds i32, ptr %d, i64 %ind |
| %loadD = load i32, ptr %arrayidxD, align 4 |
| |
| %arrayidxE = getelementptr inbounds i32, ptr %e, i64 %ind |
| %loadE = load i32, ptr %arrayidxE, align 4 |
| |
| %mulC = mul i32 %loadD, %loadE |
| |
| %arrayidxC = getelementptr inbounds i32, ptr %c, i64 %ind |
| store i32 %mulC, ptr %arrayidxC, align 4 |
| |
| %exitcond = icmp eq i64 %add, 20 |
| br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0 |
| |
| for.end: |
| ret void |
| } |
| |
| !0 = distinct !{!0, !{!"llvm.loop.disable_nonforced"}} |