| ; RUN: opt -loop-vectorize -force-vector-interleave=1 -force-vector-width=2 -S < %s | FileCheck %s | |
| ; | |
| ; Check that the disable_nonforced loop property is honored by the | |
| ; loop vectorizer. | |
| ; | |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" | |
| ; CHECK-LABEL: @disable_nonforced( | |
| ; CHECK-NOT: x i32> | |
| define void @disable_nonforced(i32* nocapture %a, i32 %n) { | |
| entry: | |
| %cmp4 = icmp sgt i32 %n, 0 | |
| br i1 %cmp4, label %for.body, label %for.end | |
| for.body: | |
| %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ] | |
| %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv | |
| %0 = trunc i64 %indvars.iv to i32 | |
| store i32 %0, i32* %arrayidx, align 4 | |
| %indvars.iv.next = add i64 %indvars.iv, 1 | |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 | |
| %exitcond = icmp eq i32 %lftr.wideiv, %n | |
| br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0 | |
| for.end: | |
| ret void | |
| } | |
| !0 = !{!0, !{!"llvm.loop.disable_nonforced"}} |