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| ; RUN: opt %loadPolly -polly-ast -S -analyze < %s | FileCheck %s
; XFAIL: *
;define N 20
;#include "limits.h"
;int A[N];
;
;void bar (int n) {
; int i;
; __sync_synchronize();
; i = 0;
;
; do {
; A[0] = i;
; ++i;
; } while (i < 2 * n);
; __sync_synchronize();
;}
;
;int main () {
; A[0] = 0;
; bar (N/2);
;
; if (A[0] == N - 1 )
; return 0;
; else
; return 1;
;}
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-n8:16:32:64"
@A = common global [20 x i32] zeroinitializer, align 4 ; <[20 x i32]*> [#uses=1]
define void @bar(i32 %n) nounwind {
entry:
fence seq_cst
%tmp = mul i32 %n, 2 ; <i32> [#uses=2]
%tmp1 = icmp sgt i32 %tmp, 1 ; <i1> [#uses=1]
%smax = select i1 %tmp1, i32 %tmp, i32 1 ; <i32> [#uses=1]
br label %do.body
do.body: ; preds = %do.cond, %entry
%0 = phi i32 [ 0, %entry ], [ %inc, %do.cond ] ; <i32> [#uses=2]
store i32 %0, i32* getelementptr inbounds ([20 x i32], [20 x i32]* @A, i32 0, i32 0)
%inc = add nsw i32 %0, 1 ; <i32> [#uses=2]
br label %do.cond
do.cond: ; preds = %do.body
%exitcond = icmp ne i32 %inc, %smax ; <i1> [#uses=1]
br i1 %exitcond, label %do.body, label %do.end
do.end: ; preds = %do.cond
fence seq_cst
ret void
}
define i32 @main() nounwind {
entry:
store i32 0, i32* getelementptr inbounds ([20 x i32], [20 x i32]* @A, i32 0, i32 0)
call void @bar(i32 10)
%tmp = load i32, i32* getelementptr inbounds ([20 x i32], [20 x i32]* @A, i32 0, i32 0) ; <i32> [#uses=1]
%cmp = icmp eq i32 %tmp, 19 ; <i1> [#uses=1]
br i1 %cmp, label %if.then, label %if.else
if.then: ; preds = %entry
br label %return
if.else: ; preds = %entry
br label %return
return: ; preds = %if.else, %if.then
%retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.else ] ; <i32> [#uses=1]
ret i32 %retval.0
}
; CHECK: Scop: do.body => do.end
|