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; RUN: opt %loadPolly -polly-print-scops -disable-output < %s | FileCheck %s
; Check that PHI nodes only create PHI access and nothing else (e.g. unnecessary
; SCALAR accesses). In this case, for a PHI in the exit node, hence there is no
; PHI ReadAccess.
; CHECK-LABEL: Function: foo
;
; CHECK: Statements {
; CHECK-NEXT: Stmt_header
; CHECK-NEXT: Domain :=
; CHECK-NEXT: { Stmt_header[] };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: { Stmt_header[] -> [0, 0] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
; CHECK-NEXT: { Stmt_header[] -> MemRef_phi[] };
; CHECK-NEXT: Stmt_body
; CHECK-NEXT: Domain :=
; CHECK-NEXT: { Stmt_body[i0] : 0 <= i0 <= 100 };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: { Stmt_body[i0] -> [1, i0] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
; CHECK-NEXT: { Stmt_body[i0] -> MemRef_phi[] };
; CHECK-NEXT: }
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define float @foo(float %sum, ptr %A) {
entry:
br label %header
header:
br i1 true, label %body, label %exit
body:
%i = phi i64 [ 0, %header ], [ %next, %body ]
%scalar = fadd float 0.0, 0.0
%next = add nuw nsw i64 %i, 1
%cond = icmp ne i64 %i, 100
br i1 %cond, label %body, label %exit
exit:
%phi = phi float [%scalar, %body], [0.0, %header]
ret float %phi
}
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