1 ; RUN: opt %loadPolly -polly-detect-unprofitable -polly-no-early-exit -basicaa -polly-ast -analyze < %s | FileCheck %s
2 ; RUN: opt %loadPolly -polly-detect-unprofitable -polly-no-early-exit -basicaa -polly-codegen-isl -loops -analyze < %s | FileCheck %s -check-prefix=LOOPS
10 ;void loop_with_condition() {
13 ; __sync_synchronize();
14 ; for (i = 0; i < N; i++) {
23 ; __sync_synchronize();
29 ; memset(A, 0, sizeof(int) * N);
30 ; memset(B, 0, sizeof(int) * N);
32 ; loop_with_condition();
34 ; for (i = 0; i < N; i++)
38 ; for (i = 0; i < N; i++)
39 ; if (i <= N / 2 && i > 20 && A[i] != 1)
41 ; else if (i > N / 2) {
42 ; if (i <= 20 && A[i] != 2)
44 ; if (i > 20 && A[i] != 0)
50 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"
51 target triple = "x86_64-pc-linux-gnu"
53 @A = common global [1024 x i32] zeroinitializer, align 16 ; <[1024 x i32]*> [#uses=4]
54 @B = common global [1024 x i32] zeroinitializer, align 16 ; <[1024 x i32]*> [#uses=4]
56 define void @loop_with_condition() nounwind {
61 ; <label>:1 ; preds = %10, %0
62 %indvar = phi i64 [ %indvar.next, %10 ], [ 0, %0 ] ; <i64> [#uses=5]
63 %scevgep = getelementptr [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvar ; <i32*> [#uses=2]
64 %scevgep1 = getelementptr [1024 x i32], [1024 x i32]* @B, i64 0, i64 %indvar ; <i32*> [#uses=1]
65 %i.0 = trunc i64 %indvar to i32 ; <i32> [#uses=2]
66 %exitcond = icmp ne i64 %indvar, 1024 ; <i1> [#uses=1]
67 br i1 %exitcond, label %2, label %11
69 ; <label>:2 ; preds = %1
70 %3 = icmp sle i32 %i.0, 512 ; <i1> [#uses=1]
71 br i1 %3, label %4, label %9
73 ; <label>:4 ; preds = %2
74 %5 = icmp sgt i32 %i.0, 20 ; <i1> [#uses=1]
75 br i1 %5, label %6, label %7
77 ; <label>:6 ; preds = %4
78 store i32 1, i32* %scevgep
81 ; <label>:7 ; preds = %4
82 store i32 2, i32* %scevgep
85 ; <label>:8 ; preds = %7, %6
88 ; <label>:9 ; preds = %8, %2
89 store i32 3, i32* %scevgep1
92 ; <label>:10 ; preds = %9
93 %indvar.next = add i64 %indvar, 1 ; <i64> [#uses=1]
96 ; <label>:11 ; preds = %1
101 define i32 @main() nounwind {
103 call void @llvm.memset.p0i8.i64(i8* bitcast ([1024 x i32]* @A to i8*), i8 0, i64 4096, i32 1, i1 false)
104 call void @llvm.memset.p0i8.i64(i8* bitcast ([1024 x i32]* @B to i8*), i8 0, i64 4096, i32 1, i1 false)
105 call void @loop_with_condition()
108 ; <label>:1 ; preds = %8, %0
109 %indvar1 = phi i64 [ %indvar.next2, %8 ], [ 0, %0 ] ; <i64> [#uses=3]
110 %scevgep3 = getelementptr [1024 x i32], [1024 x i32]* @B, i64 0, i64 %indvar1 ; <i32*> [#uses=1]
111 %i.0 = trunc i64 %indvar1 to i32 ; <i32> [#uses=1]
112 %2 = icmp slt i32 %i.0, 1024 ; <i1> [#uses=1]
113 br i1 %2, label %3, label %9
115 ; <label>:3 ; preds = %1
116 %4 = load i32* %scevgep3 ; <i32> [#uses=1]
117 %5 = icmp ne i32 %4, 3 ; <i1> [#uses=1]
118 br i1 %5, label %6, label %7
120 ; <label>:6 ; preds = %3
123 ; <label>:7 ; preds = %3
126 ; <label>:8 ; preds = %7
127 %indvar.next2 = add i64 %indvar1, 1 ; <i64> [#uses=1]
130 ; <label>:9 ; preds = %1
133 ; <label>:10 ; preds = %37, %9
134 %indvar = phi i64 [ %indvar.next, %37 ], [ 0, %9 ] ; <i64> [#uses=3]
135 %scevgep = getelementptr [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvar ; <i32*> [#uses=3]
136 %i.1 = trunc i64 %indvar to i32 ; <i32> [#uses=6]
137 %11 = icmp slt i32 %i.1, 1024 ; <i1> [#uses=1]
138 br i1 %11, label %12, label %38
140 ; <label>:12 ; preds = %10
141 %13 = icmp sle i32 %i.1, 512 ; <i1> [#uses=1]
142 br i1 %13, label %14, label %20
144 ; <label>:14 ; preds = %12
145 %15 = icmp sgt i32 %i.1, 20 ; <i1> [#uses=1]
146 br i1 %15, label %16, label %20
148 ; <label>:16 ; preds = %14
149 %17 = load i32* %scevgep ; <i32> [#uses=1]
150 %18 = icmp ne i32 %17, 1 ; <i1> [#uses=1]
151 br i1 %18, label %19, label %20
153 ; <label>:19 ; preds = %16
156 ; <label>:20 ; preds = %16, %14, %12
157 %21 = icmp sgt i32 %i.1, 512 ; <i1> [#uses=1]
158 br i1 %21, label %22, label %35
160 ; <label>:22 ; preds = %20
161 %23 = icmp sle i32 %i.1, 20 ; <i1> [#uses=1]
162 br i1 %23, label %24, label %28
164 ; <label>:24 ; preds = %22
165 %25 = load i32* %scevgep ; <i32> [#uses=1]
166 %26 = icmp ne i32 %25, 2 ; <i1> [#uses=1]
167 br i1 %26, label %27, label %28
169 ; <label>:27 ; preds = %24
172 ; <label>:28 ; preds = %24, %22
173 %29 = icmp sgt i32 %i.1, 20 ; <i1> [#uses=1]
174 br i1 %29, label %30, label %34
176 ; <label>:30 ; preds = %28
177 %31 = load i32* %scevgep ; <i32> [#uses=1]
178 %32 = icmp ne i32 %31, 0 ; <i1> [#uses=1]
179 br i1 %32, label %33, label %34
181 ; <label>:33 ; preds = %30
184 ; <label>:34 ; preds = %30, %28
187 ; <label>:35 ; preds = %34, %20
190 ; <label>:36 ; preds = %35
193 ; <label>:37 ; preds = %36
194 %indvar.next = add i64 %indvar, 1 ; <i64> [#uses=1]
197 ; <label>:38 ; preds = %10
200 ; <label>:39 ; preds = %38, %33, %27, %19, %6
201 %.0 = phi i32 [ 1, %6 ], [ 1, %19 ], [ 1, %27 ], [ 1, %33 ], [ 0, %38 ] ; <i32> [#uses=1]
205 declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
207 ; CHECK: for (int c0 = 0; c0 <= 1023; c0 += 1) {
208 ; CHECK: if (c0 <= 20) {
210 ; CHECK: } else if (c0 <= 512)
215 ; LOOPS: Printing analysis 'Natural Loop Information' for function 'loop_with_condition':
216 ; LOOPS: Loop at depth 1 containing: %1<header><exiting>,%2,%4,%7,%6,%8,%9,%10<latch>
217 ; LOOPS: Loop at depth 1 containing:
218 ; LOOPS: %polly.loop_header<header>,%polly.cond,%polly.merge,%polly.then,%polly.else,%polly.stmt.,%polly.cond3,%polly.merge4,%polly.then5,%polly.else6,%polly.stmt.7,%polly.stmt{{.*}}<latch><exiting>