1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
| ; RUN: opt -S -indvars < %s | FileCheck %s
; Produced from the test-case:
;
; extern void foo(char *, unsigned , unsigned *);
; extern void bar(int *, long);
; extern char *processBuf(char *);
;
; extern unsigned theSize;
;
; void foo(char *buf, unsigned denominator, unsigned *flag) {
; int incr = (int) (theSize / denominator);
; int inx = 0;
; while (*flag) {
; int itmp = inx + incr;
; int i = (int) theSize;
; bar(&i, (long) itmp);
; buf = processBuf(buf);
; inx = itmp;
; }
; }
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
@theSize = external local_unnamed_addr global i32, align 4
define void @foo(i8* %buf, i32 %denominator, i32* %flag) local_unnamed_addr {
entry:
%i = alloca i32, align 4
%0 = load i32, i32* @theSize, align 4
%div = udiv i32 %0, %denominator
%1 = load i32, i32* %flag, align 4
%tobool5 = icmp eq i32 %1, 0
br i1 %tobool5, label %while.end, label %while.body.lr.ph
while.body.lr.ph: ; preds = %entry
%2 = bitcast i32* %i to i8*
br label %while.body
while.body: ; preds = %while.body.lr.ph, %while.body
; Check that there are two PHIs followed by a 'sext' in the same block, and that
; the test does not crash.
; CHECK: phi
; CHECK-NEXT: phi
; CHECK-NEXT: sext
%buf.addr.07 = phi i8* [ %buf, %while.body.lr.ph ], [ %call, %while.body ]
%inx.06 = phi i32 [ 0, %while.body.lr.ph ], [ %add, %while.body ]
%add = add nsw i32 %inx.06, %div
%3 = load i32, i32* @theSize, align 4
store i32 %3, i32* %i, align 4
%conv = sext i32 %add to i64
call void @bar(i32* nonnull %i, i64 %conv)
%call = call i8* @processBuf(i8* %buf.addr.07)
%4 = load i32, i32* %flag, align 4
%tobool = icmp eq i32 %4, 0
br i1 %tobool, label %while.end.loopexit, label %while.body
while.end.loopexit: ; preds = %while.body
br label %while.end
while.end: ; preds = %while.end.loopexit, %entry
ret void
}
declare void @bar(i32*, i64) local_unnamed_addr
declare i8* @processBuf(i8*) local_unnamed_addr
|