| ; RUN: opt %loadPolly -polly-print-simplify -disable-output < %s | FileCheck %s -match-full-lines |
| ; RUN: opt %loadNPMPolly "-passes=scop(print<polly-simplify>)" -disable-output -aa-pipeline=basic-aa < %s | FileCheck %s -match-full-lines |
| ; |
| ; Do not remove dependencies of a phi node in a region's exit block. |
| ; |
| define void @func(i32 %n, double* noalias nonnull %A, double %alpha) { |
| 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 %body, label %exit |
| |
| body: |
| %val = fadd double 21.0, 21.0 |
| br label %region_entry |
| |
| |
| region_entry: |
| %region.cmp = fcmp ueq double %alpha, 0.0 |
| br i1 %region.cmp, label %region_true, label %region_exit |
| |
| region_true: |
| br label %region_exit |
| |
| region_exit: |
| %phi = phi double [%val, %region_true], [0.0, %region_entry] |
| store double %phi, double* %A |
| br label %inc |
| |
| |
| inc: |
| %j.inc = add nuw nsw i32 %j, 1 |
| br label %for |
| |
| exit: |
| br label %return |
| |
| return: |
| ret void |
| } |
| |
| |
| ; CHECK: SCoP could not be simplified |