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
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3
; RUN: opt < %s -loop-reduce -S | FileCheck %s
; Provide legal integer types.
target datalayout = "n8:16:32:64"
@d = common global i32 0, align 4
define void @fn2(i32 %x) nounwind uwtable {
; CHECK-LABEL: define void @fn2(
; CHECK-SAME: i32 [[X:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[LSR_IV:%.*]] = phi i32 [ [[LSR_IV_NEXT:%.*]], [[FOR_COND]] ], [ -1, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[X]], 0
; CHECK-NEXT: [[LSR_IV_NEXT]] = add i32 [[LSR_IV]], 1
; CHECK-NEXT: br i1 [[TOBOOL]], label [[FOR_COND]], label [[FOR_END:%.*]]
; CHECK: for.end:
; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr @d, align 4
; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr @d, align 4
; CHECK-NEXT: [[TMP0:%.*]] = sub i32 [[TMP1]], [[TMP2]]
; CHECK-NEXT: [[TOBOOL26:%.*]] = icmp eq i32 [[X]], 0
; CHECK-NEXT: br i1 [[TOBOOL26]], label [[FOR_END5:%.*]], label [[FOR_BODY_LR_PH:%.*]]
; CHECK: for.body.lr.ph:
; CHECK-NEXT: [[TOBOOL3:%.*]] = icmp ne i32 [[TMP0]], [[LSR_IV_NEXT]]
; CHECK-NEXT: br label [[FOR_END5]]
; CHECK: for.end5:
; CHECK-NEXT: ret void
;
entry:
br label %for.cond
for.cond:
%g.0 = phi i32 [ 0, %entry ], [ %dec, %for.cond ]
%tobool = icmp eq i32 %x, 0
%dec = add nsw i32 %g.0, -1
br i1 %tobool, label %for.cond, label %for.end
for.end:
%tmp1 = load i32, ptr @d, align 4
%add = add nsw i32 %tmp1, %g.0
%tmp2 = load i32, ptr @d, align 4
%tobool26 = icmp eq i32 %x, 0
br i1 %tobool26, label %for.end5, label %for.body.lr.ph
for.body.lr.ph:
%tobool3 = icmp ne i32 %tmp2, %add
br label %for.end5
for.end5:
ret void
}
|
