| ; RUN: opt -passes=loop-vectorize -force-tail-folding-style=data-with-evl \ |
| ; RUN: -prefer-predicate-over-epilogue=predicate-dont-vectorize \ |
| ; RUN: -mtriple=riscv64 -mattr=+v -S -debug %s 2>&1 | FileCheck %s |
| |
| ; REQUIRES: asserts |
| |
| ; Make sure we do not vectorize a loop with a widened int induction. |
| define void @test_wide_integer_induction(ptr noalias %a, i64 %N) { |
| ; CHECK-NOT: LV: Vector loop of width {{.+}} costs: |
| ; |
| ; CHECK: define void @test_wide_integer_induction( |
| ; CHECK-NOT: vector.body |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv |
| store i64 %iv, ptr %arrayidx, align 8 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond.not = icmp eq i64 %iv.next, %N |
| br i1 %exitcond.not, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |
