llvm/polly/test/CodeGen/phi_condition_modeling_2.ll

; RUN: opt %loadNPMPolly -S  -passes=polly-codegen < %s | FileCheck %s
;
;    void f(int *A, int c, int N) {
;      int tmp;
;      for (int i = 0; i < N; i++) {
;        if (i > c)
;          tmp = 3;
;        else
;          tmp = 5;
;        A[i] = tmp;
;      }
;    }
;
; CHECK-LABEL: bb:
; CHECK-DAG:   %tmp.0.s2a = alloca i32
; CHECK-DAG:   %tmp.0.phiops = alloca i32
; CHECK-LABEL: polly.stmt.bb8:
; CHECK:       %tmp.0.phiops.reload = load i32, ptr %tmp.0.phiops
; CHECK:       store i32 %tmp.0.phiops.reload, ptr %tmp.0.s2a
; CHECK-LABEL: polly.stmt.bb8b:
; CHECK:       %tmp.0.s2a.reload = load i32, ptr %tmp.0.s2a
; CHECK:       store i32 %tmp.0.s2a.reload,
; CHECK-LABEL: polly.stmt.bb7:
; CHECK:       store i32 5, ptr %tmp.0.phiops
; CHECK-LABEL: polly.stmt.bb6:
; CHECK:       store i32 3, ptr %tmp.0.phiops

target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"

define void @f(ptr %A, i32 %c, i32 %N) {
bb:
  %tmp = sext i32 %N to i64
  %tmp1 = sext i32 %c to i64
  br label %bb2

bb2:                                              ; preds = %bb10, %bb
  %indvars.iv = phi i64 [ %indvars.iv.next, %bb10 ], [ 0, %bb ]
  %tmp3 = icmp slt i64 %indvars.iv, %tmp
  br i1 %tmp3, label %bb4, label %bb11

bb4:                                              ; preds = %bb2
  %tmp5 = icmp sgt i64 %indvars.iv, %tmp1
  br i1 %tmp5, label %bb6, label %bb7

bb6:                                              ; preds = %bb4
  br label %bb8

bb7:                                              ; preds = %bb4
  br label %bb8

bb8:                                              ; preds = %bb7, %bb6
  %tmp.0 = phi i32 [ 3, %bb6 ], [ 5, %bb7 ]
  br label %bb8b

bb8b:
  %tmp9 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
  store i32 %tmp.0, ptr %tmp9, align 4
  br label %bb10

bb10:                                             ; preds = %bb8
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  br label %bb2

bb11:                                             ; preds = %bb2
  ret void
}