blob: 6d83a0a5b58d469bbf0ad3e69e2c24eded9f3abb [file] [log] [blame]
; 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) {
br label %entry.split
; CHECK-LABEL: polly.start:
; CHECK: store float %a, float* %b.phiops
%b = phi float [ %a, %entry ]
%cmp2 = icmp slt i64 %n, 5
br i1 %cmp2, label %for.cond, label %for.end
for.cond: ; preds =, %entry
%i.0 = phi i64 [ 0, %entry.split ], [ %add, ]
%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 ; preds = %for.body
%add = add nuw nsw i64 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret void