| ; RUN: opt %loadPolly -basic-aa -loop-rotate -indvars -polly-prepare -polly-scops -analyze < %s | FileCheck %s |
| ; RUN: opt %loadPolly -basic-aa -loop-rotate -indvars -licm -polly-prepare -polly-scops -analyze < %s | FileCheck %s |
| ; |
| ; XFAIL: * |
| ; |
| ; Even ScopDetection fails here after LICM because of PHI in exit node. |
| ; |
| ; void foo(unsigned long *restrict A, unsigned long *restrict B, |
| ; unsigned long j) { |
| ; for (unsigned long i = 0; i < 100; i++) |
| ; for (unsigned long k = 0; k < 100; k++) |
| ; A[j] += B[i + k]; |
| ; } |
| ; |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| define void @foo(i64* noalias %A, i64* noalias %B, i64 %j) { |
| entry: |
| br label %for.cond |
| |
| for.cond: ; preds = %for.inc.6, %entry |
| %i.0 = phi i64 [ 0, %entry ], [ %inc7, %for.inc.6 ] |
| %exitcond1 = icmp ne i64 %i.0, 100 |
| br i1 %exitcond1, label %for.body, label %for.end.8 |
| |
| for.body: ; preds = %for.cond |
| br label %for.cond.1 |
| |
| for.cond.1: ; preds = %for.inc, %for.body |
| %k.0 = phi i64 [ 0, %for.body ], [ %inc, %for.inc ] |
| %exitcond = icmp ne i64 %k.0, 100 |
| br i1 %exitcond, label %for.body.3, label %for.end |
| |
| for.body.3: ; preds = %for.cond.1 |
| %add = add nuw nsw i64 %i.0, %k.0 |
| %arrayidx = getelementptr inbounds i64, i64* %B, i64 %add |
| %tmp = load i64, i64* %arrayidx, align 8 |
| %arrayidx4 = getelementptr inbounds i64, i64* %A, i64 %j |
| %tmp2 = load i64, i64* %arrayidx4, align 8 |
| %add5 = add i64 %tmp2, %tmp |
| store i64 %add5, i64* %arrayidx4, align 8 |
| br label %for.inc |
| |
| for.inc: ; preds = %for.body.3 |
| %inc = add nuw nsw i64 %k.0, 1 |
| br label %for.cond.1 |
| |
| for.end: ; preds = %for.cond.1 |
| br label %for.inc.6 |
| |
| for.inc.6: ; preds = %for.end |
| %inc7 = add nuw nsw i64 %i.0, 1 |
| br label %for.cond |
| |
| for.end.8: ; preds = %for.cond |
| ret void |
| } |
| |
| |
| ; CHECK: Statements { |
| ; CHECK: Stmt_for_body_3 |
| ; CHECK-DAG: ReadAccess := [Reduction Type: NONE] [Scalar: 0] |
| ; CHECK-NEXT: [j] -> { Stmt_for_body_3[i0, i1] -> MemRef_B[i0 + i1] }; |
| ; CHECK-DAG: ReadAccess := [Reduction Type: +] [Scalar: 0] |
| ; CHECK-NEXT: [j] -> { Stmt_for_body_3[i0, i1] -> MemRef_A[j] }; |
| ; CHECK-DAG: MustWriteAccess := [Reduction Type: +] [Scalar: 0] |
| ; CHECK-NEXT: [j] -> { Stmt_for_body_3[i0, i1] -> MemRef_A[j] }; |
| ; CHECK: } |