| ; RUN: opt %loadPolly -polly-codegen -S < %s | FileCheck %s |
| ; |
| ; The entry of this scop's simple region (entry.split => for.end) has an trivial |
| ; PHI node that is used in a different of the scop region. LCSSA may create such |
| ; PHI nodes. This is a breakdown of this case in the function 'mp_unexp_sub' of |
| ; pifft from LLVM's test-suite. |
| ; |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| define void @test(i64 %n, float* noalias nonnull %A, float %a) { |
| entry: |
| br label %entry.split |
| |
| ; CHECK-LABEL: polly.start: |
| ; CHECK: store float %a, float* %b.phiops |
| |
| entry.split: |
| %b = phi float [ %a, %entry ] |
| %cmp2 = icmp slt i64 %n, 5 |
| br i1 %cmp2, label %for.cond, label %for.end |
| |
| for.cond: ; preds = %for.inc, %entry |
| %i.0 = phi i64 [ 0, %entry.split ], [ %add, %for.inc ] |
| %cmp = icmp slt i64 %i.0, %n |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.body: ; preds = %for.cond |
| %arrayidx = getelementptr inbounds float, float* %A, i64 %i.0 |
| store float %b, float* %arrayidx, align 4 |
| br label %for.inc |
| |
| for.inc: ; preds = %for.body |
| %add = add nuw nsw i64 %i.0, 1 |
| br label %for.cond |
| |
| for.end: ; preds = %for.cond |
| ret void |
| } |