38 lines
1.1 KiB
LLVM
38 lines
1.1 KiB
LLVM
; RUN: opt -mtriple=riscv64 -mattr=+m,+v -loop-vectorize \
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; RUN: -riscv-v-vector-bits-max=512 -S -scalable-vectorization=on < %s 2>&1 \
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; RUN: | FileCheck %s
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; void test(int *a, int *b, int N) {
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; #pragma clang loop vectorize(enable) vectorize_width(2, scalable)
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; for (int i=0; i<N; ++i) {
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; a[i + 64] = a[i] + b[i];
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; }
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; }
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;
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; CHECK: <vscale x 2 x i32>
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define void @test(i32* %a, i32* %b) {
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entry:
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br label %loop
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loop:
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%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
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%arrayidx = getelementptr inbounds i32, i32* %a, i64 %iv
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%0 = load i32, i32* %arrayidx, align 4
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%arrayidx2 = getelementptr inbounds i32, i32* %b, i64 %iv
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%1 = load i32, i32* %arrayidx2, align 4
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%add = add nsw i32 %1, %0
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%2 = add nuw nsw i64 %iv, 64
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%arrayidx5 = getelementptr inbounds i32, i32* %a, i64 %2
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store i32 %add, i32* %arrayidx5, align 4
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond.not = icmp eq i64 %iv.next, 1024
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br i1 %exitcond.not, label %exit, label %loop, !llvm.loop !6
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exit:
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ret void
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}
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!6 = !{!6, !7, !8}
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!7 = !{!"llvm.loop.vectorize.width", i32 2}
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!8 = !{!"llvm.loop.vectorize.scalable.enable", i1 true}
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