single_loop_one_iteration.ll
2.26 KB
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; RUN: opt %loadPolly -polly-ast -analyze < %s | FileCheck %s
;#define N 20
;
;int main () {
; int i;
; int A[N];
;
; A[0] = 0;
;
; __sync_synchronize();
;
; for (i = 0; i < 1; i++)
; A[i] = 1;
;
; __sync_synchronize();
;
; if (A[0] == 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"
define i32 @main() nounwind {
entry:
%A = alloca [20 x i32], align 4 ; <[20 x i32]*> [#uses=3]
%arraydecay = getelementptr inbounds [20 x i32], [20 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1]
%arrayidx = getelementptr inbounds i32, i32* %arraydecay, i64 0 ; <i32*> [#uses=1]
store i32 0, i32* %arrayidx
fence seq_cst
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvar = phi i64 [ %indvar.next, %for.inc ], [ 0, %entry ] ; <i64> [#uses=3]
%arrayidx3 = getelementptr [20 x i32], [20 x i32]* %A, i64 0, i64 %indvar ; <i32*> [#uses=1]
%exitcond = icmp ne i64 %indvar, 1 ; <i1> [#uses=1]
br i1 %exitcond, label %for.body, label %for.end
for.body: ; preds = %for.cond
store i32 1, i32* %arrayidx3
br label %for.inc
for.inc: ; preds = %for.body
%indvar.next = add i64 %indvar, 1 ; <i64> [#uses=1]
br label %for.cond
for.end: ; preds = %for.cond
fence seq_cst
%arraydecay5 = getelementptr inbounds [20 x i32], [20 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1]
%arrayidx6 = getelementptr inbounds i32, i32* %arraydecay5, i64 0 ; <i32*> [#uses=1]
%tmp7 = load i32, i32* %arrayidx6 ; <i32> [#uses=1]
%cmp8 = icmp eq i32 %tmp7, 1 ; <i1> [#uses=1]
br i1 %cmp8, label %if.then, label %if.else
if.then: ; preds = %for.end
br label %return
if.else: ; preds = %for.end
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: Stmt_for_body(0);