single_loop.ll
3.02 KB
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; RUN: opt %loadPolly -polly-ast -analyze < %s | FileCheck %s
;#include <string.h>
;#define N 1024
;
;int main () {
; int i;
; int A[N];
;
; memset(A, 0, sizeof(int) * N);
;
; for (i = 0; i < N; i++) {
; A[i] = 1;
; }
;
; for (i = 0; i < N; i++)
; if (A[i] != 1)
; return 1;
;
; return 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-n8:16:32:64"
define i32 @main() nounwind {
entry:
%A = alloca [1024 x i32], align 4 ; <[1024 x i32]*> [#uses=3]
%arraydecay = getelementptr inbounds [1024 x i32], [1024 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1]
%conv = bitcast i32* %arraydecay to i8* ; <i8*> [#uses=1]
call void @llvm.memset.p0i8.i64(i8* %conv, i8 0, i64 4096, i32 1, i1 false)
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvar1 = phi i64 [ %indvar.next2, %for.inc ], [ 0, %entry ] ; <i64> [#uses=3]
%arrayidx = getelementptr [1024 x i32], [1024 x i32]* %A, i64 0, i64 %indvar1 ; <i32*> [#uses=1]
%exitcond = icmp ne i64 %indvar1, 1024 ; <i1> [#uses=1]
br i1 %exitcond, label %for.body, label %for.end
for.body: ; preds = %for.cond
store i32 1, i32* %arrayidx
br label %for.inc
for.inc: ; preds = %for.body
%indvar.next2 = add i64 %indvar1, 1 ; <i64> [#uses=1]
br label %for.cond
for.end: ; preds = %for.cond
br label %for.cond5
for.cond5: ; preds = %for.inc07, %for.end
%indvar = phi i64 [ %indvar.next, %for.inc07 ], [ 0, %for.end ] ; <i64> [#uses=3]
%arrayidx13 = getelementptr [1024 x i32], [1024 x i32]* %A, i64 0, i64 %indvar ; <i32*> [#uses=1]
%i.1 = trunc i64 %indvar to i32 ; <i32> [#uses=1]
%cmp7 = icmp slt i32 %i.1, 1024 ; <i1> [#uses=1]
br i1 %cmp7, label %for.body9, label %for.end20
for.body9: ; preds = %for.cond5
%tmp14 = load i32, i32* %arrayidx13 ; <i32> [#uses=1]
%cmp15 = icmp ne i32 %tmp14, 1 ; <i1> [#uses=1]
br i1 %cmp15, label %if.then, label %if.end
if.then: ; preds = %for.body9
br label %return
if.end: ; preds = %for.body9
br label %for.inc07
for.inc07: ; preds = %if.end
%indvar.next = add i64 %indvar, 1 ; <i64> [#uses=1]
br label %for.cond5
for.end20: ; preds = %for.cond5
br label %return
return: ; preds = %for.end20, %if.then
%retval.0 = phi i32 [ 1, %if.then ], [ 0, %for.end20 ] ; <i32> [#uses=1]
ret i32 %retval.0
}
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
; CHECK: for (int c0 = 0; c0 <= 1023; c0 += 1)
; CHECK: Stmt_for_body(c0);