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; REQUIRES: asserts
; RUN: opt -passes=loop-vectorize -debug-only=loop-vectorize \
; RUN: -force-tail-folding-style=data-with-evl -force-vector-width=4 \
; RUN: -force-target-supports-scalable-vectors -scalable-vectorization=on \
; RUN: -disable-output < %s 2>&1 | FileCheck --check-prefixes=NO-VP %s
; RUN: opt -passes=loop-vectorize -debug-only=loop-vectorize \
; RUN: -force-tail-folding-style=none \
; RUN: -prefer-predicate-over-epilogue=predicate-dont-vectorize \
; RUN: -force-target-supports-scalable-vectors -scalable-vectorization=on \
; RUN: -disable-output < %s 2>&1 | FileCheck --check-prefixes=NO-VP %s
; The target does not support predicated vectorization.
define void @foo(ptr noalias %a, ptr noalias %b, ptr noalias %c, i64 %N) {
; NO-VP-NOT: EXPLICIT-VECTOR-LENGTH-BASED-IV-PHI
entry:
br label %for.body
for.body:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
%arrayidx = getelementptr inbounds i32, ptr %b, i64 %iv
%0 = load i32, ptr %arrayidx, align 4
%arrayidx2 = getelementptr inbounds i32, ptr %c, i64 %iv
%1 = load i32, ptr %arrayidx2, align 4
%add = add nsw i32 %1, %0
%arrayidx4 = getelementptr inbounds i32, ptr %a, i64 %iv
store i32 %add, ptr %arrayidx4, align 4
%iv.next = add nuw nsw i64 %iv, 1
%exitcond.not = icmp eq i64 %iv.next, %N
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
for.cond.cleanup:
ret void
}
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