xref: /llvm-project/polly/test/ScopInfo/zero_ext_of_truncate_2.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly -polly-invariant-load-hoisting=true '-passes=print<polly-function-scops>' -disable-output < %s 2>&1 | FileCheck %s
2;
3;    void f(unsigned long *restrict I, unsigned *restrict A, unsigned N) {
4;      for (unsigned i = 0; i < N; i++) {
5;        unsigned V = *I;
6;        if (V < i)
7;          A[i]++;
8;      }
9;    }
10;
11; CHECK:         Assumed Context:
12; CHECK-NEXT:    [N, tmp] -> { : }
13; CHECK-NEXT:    Invalid Context:
14; CHECK-NEXT:    [N, tmp] -> { : N > 0 and (tmp < 0 or tmp >= 2147483648) }
15;
16; CHECK:         Domain :=
17; CHECK-NEXT:    [N, tmp] -> { Stmt_if_then[i0] : tmp >= 0 and tmp < i0 < N };
18;
19target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
20
21define void @f(ptr noalias %I, ptr noalias %A, i32 %N, i32 %M) {
22entry:
23  br label %for.cond
24
25for.cond:                                         ; preds = %for.inc, %entry
26  %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
27  %lftr.wideiv = trunc i64 %indvars.iv to i32
28  %exitcond = icmp ne i32 %lftr.wideiv, %N
29  br i1 %exitcond, label %for.body, label %for.end
30
31for.body:                                         ; preds = %for.cond
32  %tmp = load i64, ptr %I, align 8
33  %conv = trunc i64 %tmp to i32
34  %tmp1 = zext i32 %conv to i64
35  %cmp1 = icmp ult i64 %tmp1, %indvars.iv
36  br i1 %cmp1, label %if.then, label %if.end
37
38if.then:                                          ; preds = %for.body
39  %arrayidx = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
40  %tmp2 = load i32, ptr %arrayidx, align 4
41  %inc = add i32 %tmp2, 1
42  store i32 %inc, ptr %arrayidx, align 4
43  br label %if.end
44
45if.end:                                           ; preds = %if.then, %for.body
46  br label %for.inc
47
48for.inc:                                          ; preds = %if.end
49  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
50  br label %for.cond
51
52for.end:                                          ; preds = %for.cond
53  ret void
54}
55