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| ; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
;void f(long a[], long N, long M) {
; long i, j, k;
; for (j = 0; j < M; ++j)
; if (N > j)
; a[j] = j;
; else {
; a[j] = M;
; a[j - N] = 0;
; }
;}
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
define void @f(i64* nocapture %a, i64 %N, i64 %M) nounwind {
entry:
%0 = icmp sgt i64 %M, 0 ; <i1> [#uses=1]
br i1 %0, label %bb, label %return
bb: ; preds = %bb3, %entry
%1 = phi i64 [ 0, %entry ], [ %3, %bb3 ] ; <i64> [#uses=5]
%scevgep = getelementptr i64, i64* %a, i64 %1 ; <i64*> [#uses=2]
%2 = icmp slt i64 %1, %N ; <i1> [#uses=1]
br i1 %2, label %bb1, label %bb2
bb1: ; preds = %bb
store i64 %1, i64* %scevgep, align 8
br label %bb3
bb2: ; preds = %bb
%tmp7 = sub i64 %1, %N ; <i64> [#uses=1]
%scevgep8 = getelementptr i64, i64* %a, i64 %tmp7 ; <i64*> [#uses=1]
store i64 %M, i64* %scevgep, align 8
store i64 0, i64* %scevgep8, align 8
br label %bb3
bb3: ; preds = %bb2, %bb1
%3 = add nsw i64 %1, 1 ; <i64> [#uses=2]
%exitcond = icmp eq i64 %3, %M ; <i1> [#uses=1]
br i1 %exitcond, label %return, label %bb
return: ; preds = %bb3, %entry
ret void
}
; CHECK-LABEL: Function: f
; CHECK-NEXT: Region: %bb---%return
|