1 ; RUN: opt %loadPolly -polly-detect-unprofitable -basicaa -polly-ast -polly-ast-detect-parallel -analyze < %s | FileCheck %s
3 ; Verify that we actually detect this loop as the innermost loop even though
4 ; there is a conditional inside.
7 ; CHECK: for (int c0 = 0; c0 <= 1023; c0 += 1) {
8 ; CHECK: if (c0 >= m + 1025) {
9 ; CHECK: Stmt_if_else(c0);
11 ; CHECK: Stmt_if_then(c0);
12 ; CHECK: Stmt_if_end(c0);
15 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"
16 target triple = "x86_64-unknown-linux-gnu"
18 @A = common global [1024 x i32] zeroinitializer, align 16
19 @B = common global [1024 x i32] zeroinitializer, align 16
21 define void @loop_with_condition(i32 %m) nounwind {
25 %tmp1 = zext i32 %tmp to i64
28 for.cond: ; preds = %for.inc, %entry
29 %indvar = phi i64 [ %indvar.next, %for.inc ], [ 0, %entry ]
30 %arrayidx = getelementptr [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvar
31 %arrayidx10 = getelementptr [1024 x i32], [1024 x i32]* @B, i64 0, i64 %indvar
32 %tmp2 = add i64 %tmp1, %indvar
33 %sub = trunc i64 %tmp2 to i32
34 %exitcond = icmp ne i64 %indvar, 1024
35 br i1 %exitcond, label %for.body, label %for.end
37 for.body: ; preds = %for.cond
38 %cmp3 = icmp sle i32 %sub, 1024
39 br i1 %cmp3, label %if.then, label %if.else
41 if.then: ; preds = %for.body
42 store i32 1, i32* %arrayidx
45 if.else: ; preds = %for.body
46 store i32 2, i32* %arrayidx
49 if.end: ; preds = %if.else, %if.then
50 store i32 3, i32* %arrayidx10
53 for.inc: ; preds = %if.end
54 %indvar.next = add i64 %indvar, 1
57 for.end: ; preds = %for.cond
62 define i32 @main() nounwind {
64 call void @llvm.memset.p0i8.i64(i8* bitcast ([1024 x i32]* @A to i8*), i8 0, i64 4096, i32 1, i1 false)
65 call void @llvm.memset.p0i8.i64(i8* bitcast ([1024 x i32]* @B to i8*), i8 0, i64 4096, i32 1, i1 false)
66 call void @loop_with_condition(i32 5)
69 for.cond: ; preds = %for.inc, %entry
70 %indvar1 = phi i64 [ %indvar.next2, %for.inc ], [ 0, %entry ]
71 %arrayidx = getelementptr [1024 x i32], [1024 x i32]* @B, i64 0, i64 %indvar1
72 %i.0 = trunc i64 %indvar1 to i32
73 %cmp = icmp slt i32 %i.0, 1024
74 br i1 %cmp, label %for.body, label %for.end
76 for.body: ; preds = %for.cond
77 %tmp3 = load i32* %arrayidx
78 %cmp4 = icmp ne i32 %tmp3, 3
79 br i1 %cmp4, label %if.then, label %if.end
81 if.then: ; preds = %for.body
84 if.end: ; preds = %for.body
87 for.inc: ; preds = %if.end
88 %indvar.next2 = add i64 %indvar1, 1
91 for.end: ; preds = %for.cond
94 for.cond6: ; preds = %for.inc12, %for.end
95 %indvar = phi i64 [ %indvar.next, %for.inc12 ], [ 0, %for.end ]
96 %arrayidx15 = getelementptr [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvar
97 %i.1 = trunc i64 %indvar to i32
98 %cmp8 = icmp slt i32 %i.1, 1024
99 br i1 %cmp8, label %for.body9, label %for.end35
101 for.body9: ; preds = %for.cond6
102 br i1 true, label %land.lhs.true, label %if.else
104 land.lhs.true: ; preds = %for.body9
105 %tmp16 = load i32* %arrayidx15
106 %cmp17 = icmp ne i32 %tmp16, 1
107 br i1 %cmp17, label %if.then18, label %if.else
109 if.then18: ; preds = %land.lhs.true
112 if.else: ; preds = %land.lhs.true, %for.body9
113 br i1 false, label %land.lhs.true23, label %if.end30
115 land.lhs.true23: ; preds = %if.else
116 %tmp27 = load i32* %arrayidx15
117 %cmp28 = icmp ne i32 %tmp27, 2
118 br i1 %cmp28, label %if.then29, label %if.end30
120 if.then29: ; preds = %land.lhs.true23
123 if.end30: ; preds = %land.lhs.true23, %if.else
126 if.end31: ; preds = %if.end30
129 for.inc12: ; preds = %if.end31
130 %indvar.next = add i64 %indvar, 1
133 for.end35: ; preds = %for.cond6
136 return: ; preds = %for.end35, %if.then29, %if.then18, %if.then
137 %retval.0 = phi i32 [ 1, %if.then ], [ 1, %if.then18 ], [ 1, %if.then29 ], [ 0, %for.end35 ]
141 declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind