| ; RUN: opt -S -debug-only=loop-vectorize -loop-vectorize -instcombine < %s 2>&1 | FileCheck %s |
| ; REQUIRES: asserts |
| |
| target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128" |
| target triple = "armv8--linux-gnueabihf" |
| |
| @AB = common global [1024 x i8] zeroinitializer, align 4 |
| @CD = common global [1024 x i8] zeroinitializer, align 4 |
| |
| define void @test_byte_interleaved_cost(i8 %C, i8 %D) { |
| entry: |
| br label %for.body |
| |
| ; 8xi8 and 16xi8 are valid i8 vector types, so the cost of the interleaved |
| ; access group is 2. |
| |
| ; CHECK: LV: Found an estimated cost of 2 for VF 8 For instruction: %tmp = load i8, i8* %arrayidx0, align 4 |
| ; CHECK: LV: Found an estimated cost of 2 for VF 16 For instruction: %tmp = load i8, i8* %arrayidx0, align 4 |
| |
| for.body: ; preds = %for.body, %entry |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx0 = getelementptr inbounds [1024 x i8], [1024 x i8]* @AB, i64 0, i64 %indvars.iv |
| %tmp = load i8, i8* %arrayidx0, align 4 |
| %tmp1 = or i64 %indvars.iv, 1 |
| %arrayidx1 = getelementptr inbounds [1024 x i8], [1024 x i8]* @AB, i64 0, i64 %tmp1 |
| %tmp2 = load i8, i8* %arrayidx1, align 4 |
| %add = add nsw i8 %tmp, %C |
| %mul = mul nsw i8 %tmp2, %D |
| %arrayidx2 = getelementptr inbounds [1024 x i8], [1024 x i8]* @CD, i64 0, i64 %indvars.iv |
| store i8 %add, i8* %arrayidx2, align 4 |
| %arrayidx3 = getelementptr inbounds [1024 x i8], [1024 x i8]* @CD, i64 0, i64 %tmp1 |
| store i8 %mul, i8* %arrayidx3, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 2 |
| %cmp = icmp slt i64 %indvars.iv.next, 1024 |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |