| ; REQUIRES: asserts |
| ; RUN: opt -loop-vectorize -dce -instcombine -mtriple riscv64-linux-gnu \ |
| ; RUN: -mattr=+experimental-v -debug-only=loop-vectorize \ |
| ; RUN: -riscv-v-vector-bits-min=128 -S < %s 2>&1 | FileCheck %s |
| |
| ; CHECK-LABEL: foo |
| ; CHECK: LV: IC is 2 |
| ; CHECK: %{{.*}} = add <4 x i32> %{{.*}}, <i32 4, i32 4, i32 4, i32 4> |
| ; CHECK: %{{.*}} = add {{.*}}, 8 |
| |
| ; Function Attrs: nofree norecurse nosync nounwind writeonly |
| define dso_local void @foo(i32 signext %n, i32* nocapture %A) local_unnamed_addr #0 { |
| entry: |
| %cmp5 = icmp sgt i32 %n, 0 |
| br i1 %cmp5, label %for.body.preheader, label %for.cond.cleanup |
| |
| for.body.preheader: ; preds = %entry |
| %wide.trip.count = zext i32 %n to i64 |
| br label %for.body |
| |
| for.cond.cleanup.loopexit: ; preds = %for.body |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry |
| ret void |
| |
| for.body: ; preds = %for.body.preheader, %for.body |
| %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv |
| %0 = trunc i64 %indvars.iv to i32 |
| store i32 %0, i32* %arrayidx, align 4, !tbaa !4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count |
| br i1 %exitcond.not, label %for.cond.cleanup.loopexit, label %for.body, !llvm.loop !8 |
| } |
| |
| attributes #0 = { nofree norecurse nosync nounwind writeonly "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+64bit,+a,+c,+m,+relax,-save-restore" } |
| |
| !llvm.module.flags = !{!0, !1, !2} |
| !llvm.ident = !{!3} |
| |
| !0 = !{i32 1, !"wchar_size", i32 4} |
| !1 = !{i32 1, !"target-abi", !"lp64"} |
| !2 = !{i32 1, !"SmallDataLimit", i32 8} |
| !3 = !{!"clang version 13.0.0"} |
| !4 = !{!5, !5, i64 0} |
| !5 = !{!"int", !6, i64 0} |
| !6 = !{!"omnipotent char", !7, i64 0} |
| !7 = !{!"Simple C/C++ TBAA"} |
| !8 = distinct !{!8, !9} |
| !9 = !{!"llvm.loop.mustprogress"} |