; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -mcpu=fiji -loop-vectorize < %s | FileCheck %s ; For AMDGPU, loop unroll in loop vectorizer is disabled when VF==1. ; ; CHECK-LABEL: @small_loop( ; CHECK: store i32 ; CHECK-NOT: store i32 ; CHECK: ret define amdgpu_kernel void @small_loop(i32* nocapture %inArray, i32 %size) nounwind { entry: %0 = icmp sgt i32 %size, 0 br i1 %0, label %loop, label %exit loop: ; preds = %entry, %loop %iv = phi i32 [ %iv1, %loop ], [ 0, %entry ] %1 = getelementptr inbounds i32, i32* %inArray, i32 %iv %2 = load i32, i32* %1, align 4 %3 = add nsw i32 %2, 6 store i32 %3, i32* %1, align 4 %iv1 = add i32 %iv, 1 ; %lftr.wideiv = trunc i64 %indvars.iv.next to i32 %cond = icmp eq i32 %iv1, %size br i1 %cond, label %exit, label %loop exit: ; preds = %loop, %entry ret void }