loop_with_condition.ll
5.36 KB
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; RUN: opt %loadPolly -basic-aa -polly-ast -analyze < %s | FileCheck %s
;#include <string.h>
;#define N 1024
;int A[N];
;int B[N];
;
;void loop_with_condition() {
; int i;
;
; __sync_synchronize();
; for (i = 0; i < N; i++) {
; if (i <= N / 2)
; A[i] = 1;
; else
; A[i] = 2;
; B[i] = 3;
; }
; __sync_synchronize();
;}
;
;int main () {
; int i;
;
; memset(A, 0, sizeof(int) * N);
; memset(B, 0, sizeof(int) * N);
;
; loop_with_condition();
;
; for (i = 0; i < N; i++)
; if (B[i] != 3)
; return 1;
;
; for (i = 0; i < N; i++)
; if (i <= N / 2 && A[i] != 1)
; return 1;
; else if (i > N / 2 && A[i] != 2)
; 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"
@A = common global [1024 x i32] zeroinitializer, align 16 ; <[1024 x i32]*> [#uses=4]
@B = common global [1024 x i32] zeroinitializer, align 16 ; <[1024 x i32]*> [#uses=4]
define void @loop_with_condition() nounwind {
bb0:
fence seq_cst
br label %bb1
bb1:
%indvar = phi i64 [ %indvar.next, %bb7 ], [ 0, %bb0 ] ; <i64> [#uses=5]
%scevgep = getelementptr [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvar ; <i32*> [#uses=2]
%scevgep1 = getelementptr [1024 x i32], [1024 x i32]* @B, i64 0, i64 %indvar ; <i32*> [#uses=1]
%i.0 = trunc i64 %indvar to i32 ; <i32> [#uses=1]
%exitcond = icmp ne i64 %indvar, 1024 ; <i1> [#uses=1]
br i1 %exitcond, label %bb2, label %bb8
bb2:
%var3 = icmp sle i32 %i.0, 512 ; <i1> [#uses=1]
br i1 %var3, label %bb4, label %bb5
bb4:
store i32 1, i32* %scevgep
br label %bb6
bb5:
store i32 2, i32* %scevgep
br label %bb6
bb6:
store i32 3, i32* %scevgep1
br label %bb7
bb7:
%indvar.next = add i64 %indvar, 1 ; <i64> [#uses=1]
br label %bb1
bb8:
fence seq_cst
ret void
}
define i32 @main() nounwind {
; <label>:0
call void @llvm.memset.p0i8.i64(i8* bitcast ([1024 x i32]* @A to i8*), i8 0, i64 4096, i32 1, i1 false)
call void @llvm.memset.p0i8.i64(i8* bitcast ([1024 x i32]* @B to i8*), i8 0, i64 4096, i32 1, i1 false)
call void @loop_with_condition()
br label %1
; <label>:1 ; preds = %8, %0
%indvar1 = phi i64 [ %indvar.next2, %8 ], [ 0, %0 ] ; <i64> [#uses=3]
%scevgep3 = getelementptr [1024 x i32], [1024 x i32]* @B, i64 0, i64 %indvar1 ; <i32*> [#uses=1]
%i.0 = trunc i64 %indvar1 to i32 ; <i32> [#uses=1]
%2 = icmp slt i32 %i.0, 1024 ; <i1> [#uses=1]
br i1 %2, label %3, label %9
; <label>:3 ; preds = %1
%4 = load i32, i32* %scevgep3 ; <i32> [#uses=1]
%5 = icmp ne i32 %4, 3 ; <i1> [#uses=1]
br i1 %5, label %6, label %7
; <label>:6 ; preds = %3
br label %28
; <label>:7 ; preds = %3
br label %8
; <label>:8 ; preds = %7
%indvar.next2 = add i64 %indvar1, 1 ; <i64> [#uses=1]
br label %1
; <label>:9 ; preds = %1
br label %10
; <label>:10 ; preds = %26, %9
%indvar = phi i64 [ %indvar.next, %26 ], [ 0, %9 ] ; <i64> [#uses=3]
%scevgep = getelementptr [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvar ; <i32*> [#uses=2]
%i.1 = trunc i64 %indvar to i32 ; <i32> [#uses=3]
%11 = icmp slt i32 %i.1, 1024 ; <i1> [#uses=1]
br i1 %11, label %12, label %27
; <label>:12 ; preds = %10
%13 = icmp sle i32 %i.1, 512 ; <i1> [#uses=1]
br i1 %13, label %14, label %18
; <label>:14 ; preds = %12
%15 = load i32, i32* %scevgep ; <i32> [#uses=1]
%16 = icmp ne i32 %15, 1 ; <i1> [#uses=1]
br i1 %16, label %17, label %18
; <label>:17 ; preds = %14
br label %28
; <label>:18 ; preds = %14, %12
%19 = icmp sgt i32 %i.1, 512 ; <i1> [#uses=1]
br i1 %19, label %20, label %24
; <label>:20 ; preds = %18
%21 = load i32, i32* %scevgep ; <i32> [#uses=1]
%22 = icmp ne i32 %21, 2 ; <i1> [#uses=1]
br i1 %22, label %23, label %24
; <label>:23 ; preds = %20
br label %28
; <label>:24 ; preds = %20, %18
br label %25
; <label>:25 ; preds = %24
br label %26
; <label>:26 ; preds = %25
%indvar.next = add i64 %indvar, 1 ; <i64> [#uses=1]
br label %10
; <label>:27 ; preds = %10
br label %28
; <label>:28 ; preds = %27, %23, %17, %6
%.0 = phi i32 [ 1, %6 ], [ 1, %17 ], [ 1, %23 ], [ 0, %27 ] ; <i32> [#uses=1]
ret i32 %.0
}
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
; CHECK: for (int c0 = 0; c0 <= 1023; c0 += 1) {
; CHECK: if (c0 >= 513) {
; CHECK: Stmt_bb5(c0);
; CHECK: } else
; CHECK: Stmt_bb4(c0);
; CHECK: Stmt_bb6(c0)
; CHECK: }