| Hal Finkel | 1b66f7e | 2016-04-29 01:27:40 +0000 | [diff] [blame] | 1 | ; RUN: opt -S -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -instsimplify -simplifycfg < %s | FileCheck %s |
| 2 | ; Note: -instsimplify -simplifycfg remove the (now dead) original loop, making |
| 3 | ; it easy to test that the llvm.loop.unroll.disable hint is still present. |
| 4 | target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| Hal Finkel | 1b66f7e | 2016-04-29 01:27:40 +0000 | [diff] [blame] | 5 | |
| 6 | ; Function Attrs: norecurse nounwind uwtable |
| 7 | define void @foo(i32* nocapture %b) #0 { |
| 8 | entry: |
| 9 | br label %for.body |
| 10 | |
| 11 | for.cond.cleanup: ; preds = %for.body |
| 12 | ret void |
| 13 | |
| 14 | for.body: ; preds = %for.body, %entry |
| 15 | %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| 16 | %arrayidx = getelementptr inbounds i32, i32* %b, i64 %indvars.iv |
| 17 | store i32 1, i32* %arrayidx, align 4 |
| 18 | %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| 19 | %exitcond = icmp eq i64 %indvars.iv.next, 16 |
| 20 | br i1 %exitcond, label %for.cond.cleanup, label %for.body, !llvm.loop !0 |
| 21 | } |
| 22 | |
| 23 | ; CHECK-LABEL: @foo |
| 24 | ; CHECK: = !{!"llvm.loop.unroll.disable"} |
| 25 | |
| 26 | attributes #0 = { norecurse nounwind uwtable } |
| 27 | |
| 28 | !0 = distinct !{!0, !1} |
| 29 | !1 = !{!"llvm.loop.unroll.disable"} |