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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes='licm,guard-widening,licm' -verify-memoryssa -debug-pass-manager < %s 2>&1 | FileCheck %s
; Main point of this test is to check the scheduling -- there should be
; no analysis passes needed between LICM and LoopGuardWidening
; CHECK: LICMPass
; CHECK-NEXT: GuardWideningPass
; CHECK-NEXT: LICMPass
declare void @llvm.experimental.guard(i1,...)
define void @iter(i32 %a, i32 %b, i1* %c_p) {
; CHECK-LABEL: @iter(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[COND_0:%.*]] = icmp ult i32 [[A:%.*]], 10
; CHECK-NEXT: [[COND_1:%.*]] = icmp ult i32 [[B:%.*]], 10
; CHECK-NEXT: [[WIDE_CHK:%.*]] = and i1 [[COND_0]], [[COND_1]]
; CHECK-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[WIDE_CHK]]) [ "deopt"() ]
; CHECK-NEXT: [[CND:%.*]] = load i1, i1* [[C_P:%.*]], align 1
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: br i1 [[CND]], label [[LOOP]], label [[LEAVE_LOOPEXIT:%.*]]
; CHECK: leave.loopexit:
; CHECK-NEXT: br label [[LEAVE:%.*]]
; CHECK: leave:
; CHECK-NEXT: ret void
;
entry:
%cond_0 = icmp ult i32 %a, 10
call void (i1, ...) @llvm.experimental.guard(i1 %cond_0) [ "deopt"() ]
br label %loop
loop: ; preds = %loop.preheader, %loop
%cond_1 = icmp ult i32 %b, 10
call void (i1, ...) @llvm.experimental.guard(i1 %cond_1) [ "deopt"() ]
%cnd = load i1, i1* %c_p
br i1 %cnd, label %loop, label %leave.loopexit
leave.loopexit: ; preds = %loop
br label %leave
leave: ; preds = %leave.loopexit, %entry
ret void
}
define void @within_loop(i32 %a, i32 %b, i1* %c_p) {
; CHECK-LABEL: @within_loop(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[COND_0:%.*]] = icmp ult i32 [[A:%.*]], 10
; CHECK-NEXT: [[COND_1:%.*]] = icmp ult i32 [[B:%.*]], 10
; CHECK-NEXT: [[WIDE_CHK:%.*]] = and i1 [[COND_0]], [[COND_1]]
; CHECK-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[WIDE_CHK]]) [ "deopt"() ]
; CHECK-NEXT: [[CND:%.*]] = load i1, i1* [[C_P:%.*]], align 1
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: br i1 [[CND]], label [[LOOP]], label [[LEAVE_LOOPEXIT:%.*]]
; CHECK: leave.loopexit:
; CHECK-NEXT: br label [[LEAVE:%.*]]
; CHECK: leave:
; CHECK-NEXT: ret void
;
entry:
br label %loop
loop: ; preds = %loop.preheader, %loop
%cond_0 = icmp ult i32 %a, 10
call void (i1, ...) @llvm.experimental.guard(i1 %cond_0) [ "deopt"() ]
%cond_1 = icmp ult i32 %b, 10
call void (i1, ...) @llvm.experimental.guard(i1 %cond_1) [ "deopt"() ]
%cnd = load i1, i1* %c_p
br i1 %cnd, label %loop, label %leave.loopexit
leave.loopexit: ; preds = %loop
br label %leave
leave: ; preds = %leave.loopexit, %entry
ret void
}
|
