1; RUN: opt -mtriple=riscv64 -mattr=+m,+v -passes=loop-vectorize \ 2; RUN: -riscv-v-vector-bits-max=512 -S -scalable-vectorization=on < %s 2>&1 \ 3; RUN: | FileCheck %s 4 5; void test(int *a, int *b, int N) { 6; #pragma clang loop vectorize(enable) vectorize_width(2, scalable) 7; for (int i=0; i<N; ++i) { 8; a[i + 64] = a[i] + b[i]; 9; } 10; } 11; 12; CHECK: <vscale x 2 x i32> 13define void @test(ptr %a, ptr %b) { 14entry: 15 br label %loop 16 17loop: 18 %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] 19 %arrayidx = getelementptr inbounds i32, ptr %a, i64 %iv 20 %0 = load i32, ptr %arrayidx, align 4 21 %arrayidx2 = getelementptr inbounds i32, ptr %b, i64 %iv 22 %1 = load i32, ptr %arrayidx2, align 4 23 %add = add nsw i32 %1, %0 24 %2 = add nuw nsw i64 %iv, 64 25 %arrayidx5 = getelementptr inbounds i32, ptr %a, i64 %2 26 store i32 %add, ptr %arrayidx5, align 4 27 %iv.next = add nuw nsw i64 %iv, 1 28 %exitcond.not = icmp eq i64 %iv.next, 1024 29 br i1 %exitcond.not, label %exit, label %loop, !llvm.loop !6 30 31exit: 32 ret void 33} 34 35!6 = !{!6, !7, !8} 36!7 = !{!"llvm.loop.vectorize.width", i32 2} 37!8 = !{!"llvm.loop.vectorize.scalable.enable", i1 true} 38