29 lines
972 B
LLVM
29 lines
972 B
LLVM
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; RUN: opt -mtriple=s390x-unknown-linux -mcpu=z13 -loop-vectorize \
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; RUN: -force-vector-width=4 -debug-only=loop-vectorize \
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; RUN: -enable-interleaved-mem-accesses=false -disable-output < %s 2>&1 \
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; RUN: | FileCheck %s
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; REQUIRES: asserts
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;
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; Check that a scalarized load does not get a zero cost in a vectorized
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; loop. It can only be folded into the add operand in the scalar loop.
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define i32 @fun(i64* %data, i64 %n, i64 %s, i32* %Src) {
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entry:
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br label %for.body
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for.body:
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%iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
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%acc = phi i32 [ 0, %entry ], [ %acc_next, %for.body ]
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%gep = getelementptr inbounds i32, i32* %Src, i64 %iv
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%ld = load i32, i32* %gep
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%acc_next = add i32 %acc, %ld
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%iv.next = add nuw nsw i64 %iv, 2
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%cmp110.us = icmp slt i64 %iv.next, %n
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br i1 %cmp110.us, label %for.body, label %for.end
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for.end:
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ret i32 %acc_next
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; CHECK: Found an estimated cost of 4 for VF 4 For instruction: %ld = load i32, i32* %gep
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}
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