single_do_loop_scev_replace.ll
3.17 KB
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; RUN: opt %loadPolly -polly-ast -analyze < %s | FileCheck %s
;#define N 20
;#include "limits.h"
;#include <stdio.h>
;int A[2 * N];
;
;void single_do_loop_scev_replace() {
; int i;
;
; __sync_synchronize();
;
; i = 0;
;
; do {
; A[2 * i] = i;
; ++i;
; } while (i < N);
;
; __sync_synchronize();
;}
;
;int main () {
; int i;
;
; single_do_loop_scev_replace();
;
; fprintf(stdout, "Output %d\n", A[0]);
;
; if (A[2 * N - 2] == 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"
%struct._IO_FILE = type { i32, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, %struct._IO_marker*, %struct._IO_FILE*, i32, i32, i64, i16, i8, [1 x i8], i8*, i64, i8*, i8*, i8*, i8*, i64, i32, [20 x i8] }
%struct._IO_marker = type { %struct._IO_marker*, %struct._IO_FILE*, i32 }
@A = common global [40 x i32] zeroinitializer, align 4 ; <[40 x i32]*> [#uses=3]
@stdout = external global %struct._IO_FILE* ; <%struct._IO_FILE**> [#uses=1]
@.str = private constant [11 x i8] c"Output %d\0A\00" ; <[11 x i8]*> [#uses=1]
define void @single_do_loop_scev_replace() nounwind {
entry:
fence seq_cst
br label %do.body
do.body: ; preds = %do.cond, %entry
%indvar = phi i64 [ %indvar.next, %do.cond ], [ 0, %entry ] ; <i64> [#uses=3]
%tmp = mul i64 %indvar, 2 ; <i64> [#uses=1]
%arrayidx = getelementptr [40 x i32], [40 x i32]* @A, i64 0, i64 %tmp ; <i32*> [#uses=1]
%i.0 = trunc i64 %indvar to i32 ; <i32> [#uses=1]
br label %do.cond
do.cond: ; preds = %do.body
store i32 %i.0, i32* %arrayidx
%indvar.next = add i64 %indvar, 1 ; <i64> [#uses=2]
%exitcond = icmp ne i64 %indvar.next, 20 ; <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:
call void @single_do_loop_scev_replace()
%tmp = load %struct._IO_FILE*, %struct._IO_FILE** @stdout ; <%struct._IO_FILE*> [#uses=1]
%tmp1 = load i32, i32* getelementptr inbounds ([40 x i32], [40 x i32]* @A, i32 0, i32 0) ; <i32> [#uses=1]
%call = call i32 (%struct._IO_FILE*, i8*, ...) @fprintf(%struct._IO_FILE* %tmp, i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i32 0, i32 0), i32 %tmp1) ; <i32> [#uses=0]
%tmp2 = load i32, i32* getelementptr inbounds ([40 x i32], [40 x i32]* @A, i32 0, i64 38) ; <i32> [#uses=1]
%cmp = icmp eq i32 %tmp2, 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
}
declare i32 @fprintf(%struct._IO_FILE*, i8*, ...)
; CHECK: for (int c0 = 0; c0 <= 19; c0 += 1)
; CHECK: Stmt_do_cond(c0);