| ; RUN: opt -loop-accesses -analyze < %s | FileCheck %s |
| |
| ; 3 reads and 3 writes should need 12 memchecks |
| |
| target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64--linux-gnueabi" |
| |
| ; CHECK: Memory dependences are safe with run-time checks |
| ; Memory dependecies have labels starting from 0, so in |
| ; order to verify that we have n checks, we look for |
| ; (n-1): and not n:. |
| |
| ; CHECK: Run-time memory checks: |
| ; CHECK-NEXT: 0: |
| ; CHECK: 11: |
| ; CHECK-NOT: 12: |
| |
| define void @testf(i16* %a, |
| i16* %b, |
| i16* %c, |
| i16* %d, |
| i16* %e, |
| i16* %f) { |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %for.body, %entry |
| %ind = phi i64 [ 0, %entry ], [ %add, %for.body ] |
| |
| %add = add nuw nsw i64 %ind, 1 |
| |
| %arrayidxA = getelementptr inbounds i16, i16* %a, i64 %ind |
| %loadA = load i16, i16* %arrayidxA, align 2 |
| |
| %arrayidxB = getelementptr inbounds i16, i16* %b, i64 %ind |
| %loadB = load i16, i16* %arrayidxB, align 2 |
| |
| %arrayidxC = getelementptr inbounds i16, i16* %c, i64 %ind |
| %loadC = load i16, i16* %arrayidxC, align 2 |
| |
| %mul = mul i16 %loadB, %loadA |
| %mul1 = mul i16 %mul, %loadC |
| |
| %arrayidxD = getelementptr inbounds i16, i16* %d, i64 %ind |
| store i16 %mul1, i16* %arrayidxD, align 2 |
| |
| %arrayidxE = getelementptr inbounds i16, i16* %e, i64 %ind |
| store i16 %mul, i16* %arrayidxE, align 2 |
| |
| %arrayidxF = getelementptr inbounds i16, i16* %f, i64 %ind |
| store i16 %mul1, i16* %arrayidxF, align 2 |
| |
| %exitcond = icmp eq i64 %add, 20 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |