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