| ; RUN: opt %loadPolly -polly-opt-isl -analyze < %s | FileCheck %s -match-full-lines |
| ; |
| ; Check that the disable_nonforced metadata is honored; optimization |
| ; heuristics/rescheduling must not be applied. |
| ; |
| define void @func(i32 %n, double* noalias nonnull %A) { |
| entry: |
| br label %for |
| |
| for: |
| %j = phi i32 [0, %entry], [%j.inc, %inc] |
| %j.cmp = icmp slt i32 %j, %n |
| br i1 %j.cmp, label %inner.for, label %exit |
| |
| |
| inner.for: |
| %i = phi i32 [0, %for], [%i.inc, %inner.inc] |
| br label %bodyA |
| |
| |
| bodyA: |
| %mul = mul nuw nsw i32 %j, 128 |
| %add = add nuw nsw i32 %mul, %i |
| %A_idx = getelementptr inbounds double, double* %A, i32 %add |
| store double 0.0, double* %A_idx |
| br label %inner.inc |
| |
| |
| inner.inc: |
| %i.inc = add nuw nsw i32 %i, 1 |
| %i.cmp = icmp slt i32 %i.inc, 128 |
| br i1 %i.cmp, label %inner.for, label %inner.exit |
| |
| inner.exit: |
| br label %inc, !llvm.loop !2 |
| |
| |
| inc: |
| %j.inc = add nuw nsw i32 %j, 1 |
| br label %for, !llvm.loop !2 |
| |
| exit: |
| br label %return |
| |
| return: |
| ret void |
| } |
| |
| |
| !2 = distinct !{!2, !3} |
| !3 = !{!"llvm.loop.disable_nonforced"} |
| |
| |
| ; n/a indicates no new schedule was computed |
| ; |
| ; CHECK-LABEL: Printing analysis 'Polly - Optimize schedule of SCoP' for region: 'for => return' in function 'func': |
| ; CHECK-NEXT: Calculated schedule: |
| ; CHECK-NEXT: n/a |