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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -S -instcombine | FileCheck %s
; This file used to contain more tests that folded to true/false,
; but those are all tested identically in InstSimplify now.
; If any remaining tests are made to return true/false, that
; functionality/testing may be better housed in InstSimplify
; rather than InstCombine.
define i1 @fabs_sqrt_src_maybe_nan(double %arg0, double %arg1) {
; CHECK-LABEL: @fabs_sqrt_src_maybe_nan(
; CHECK-NEXT: [[FABS:%.*]] = call double @llvm.fabs.f64(double [[ARG0:%.*]])
; CHECK-NEXT: [[OP:%.*]] = call double @llvm.sqrt.f64(double [[FABS]])
; CHECK-NEXT: [[TMP:%.*]] = fcmp ord double [[OP]], 0.000000e+00
; CHECK-NEXT: ret i1 [[TMP]]
;
%fabs = call double @llvm.fabs.f64(double %arg0)
%op = call double @llvm.sqrt.f64(double %fabs)
%tmp = fcmp ord double %op, %op
ret i1 %tmp
}
define i1 @select_maybe_nan_lhs(i1 %cond, double %lhs, double %arg1) {
; CHECK-LABEL: @select_maybe_nan_lhs(
; CHECK-NEXT: [[RHS:%.*]] = fadd nnan double [[ARG1:%.*]], 1.000000e+00
; CHECK-NEXT: [[OP:%.*]] = select i1 [[COND:%.*]], double [[LHS:%.*]], double [[RHS]]
; CHECK-NEXT: [[TMP:%.*]] = fcmp ord double [[OP]], 0.000000e+00
; CHECK-NEXT: ret i1 [[TMP]]
;
%rhs = fadd nnan double %arg1, 1.0
%op = select i1 %cond, double %lhs, double %rhs
%tmp = fcmp ord double %op, %op
ret i1 %tmp
}
define i1 @select_maybe_nan_rhs(i1 %cond, double %arg0, double %rhs) {
; CHECK-LABEL: @select_maybe_nan_rhs(
; CHECK-NEXT: [[LHS:%.*]] = fadd nnan double [[ARG0:%.*]], 1.000000e+00
; CHECK-NEXT: [[OP:%.*]] = select i1 [[COND:%.*]], double [[LHS]], double [[RHS:%.*]]
; CHECK-NEXT: [[TMP:%.*]] = fcmp ord double [[OP]], 0.000000e+00
; CHECK-NEXT: ret i1 [[TMP]]
;
%lhs = fadd nnan double %arg0, 1.0
%op = select i1 %cond, double %lhs, double %rhs
%tmp = fcmp ord double %op, %op
ret i1 %tmp
}
define i1 @nnan_fadd(double %arg0, double %arg1) {
; CHECK-LABEL: @nnan_fadd(
; CHECK-NEXT: [[NNAN_ARG0:%.*]] = fadd nnan double [[ARG0:%.*]], 1.000000e+00
; CHECK-NEXT: [[NNAN_ARG1:%.*]] = fadd nnan double [[ARG0]], 2.000000e+00
; CHECK-NEXT: [[OP:%.*]] = fadd double [[NNAN_ARG0]], [[NNAN_ARG1]]
; CHECK-NEXT: [[TMP:%.*]] = fcmp ord double [[OP]], 0.000000e+00
; CHECK-NEXT: ret i1 [[TMP]]
;
%nnan.arg0 = fadd nnan double %arg0, 1.0
%nnan.arg1 = fadd nnan double %arg0, 2.0
%op = fadd double %nnan.arg0, %nnan.arg1
%tmp = fcmp ord double %op, %op
ret i1 %tmp
}
define i1 @nnan_fadd_maybe_nan_lhs(double %arg0, double %arg1) {
; CHECK-LABEL: @nnan_fadd_maybe_nan_lhs(
; CHECK-NEXT: [[NNAN_ARG1:%.*]] = fadd nnan double [[ARG1:%.*]], 1.000000e+00
; CHECK-NEXT: [[OP:%.*]] = fadd double [[NNAN_ARG1]], [[ARG0:%.*]]
; CHECK-NEXT: [[TMP:%.*]] = fcmp ord double [[OP]], 0.000000e+00
; CHECK-NEXT: ret i1 [[TMP]]
;
%nnan.arg1 = fadd nnan double %arg1, 1.0
%op = fadd double %arg0, %nnan.arg1
%tmp = fcmp ord double %op, %op
ret i1 %tmp
}
define i1 @nnan_fadd_maybe_nan_rhs(double %arg0, double %arg1) {
; CHECK-LABEL: @nnan_fadd_maybe_nan_rhs(
; CHECK-NEXT: [[NNAN_ARG0:%.*]] = fadd nnan double [[ARG0:%.*]], 1.000000e+00
; CHECK-NEXT: [[OP:%.*]] = fadd double [[NNAN_ARG0]], [[ARG1:%.*]]
; CHECK-NEXT: [[TMP:%.*]] = fcmp ord double [[OP]], 0.000000e+00
; CHECK-NEXT: ret i1 [[TMP]]
;
%nnan.arg0 = fadd nnan double %arg0, 1.0
%op = fadd double %nnan.arg0, %arg1
%tmp = fcmp ord double %op, %op
ret i1 %tmp
}
define i1 @nnan_fmul(double %arg0, double %arg1) {
; CHECK-LABEL: @nnan_fmul(
; CHECK-NEXT: [[NNAN_ARG0:%.*]] = fadd nnan double [[ARG0:%.*]], 1.000000e+00
; CHECK-NEXT: [[NNAN_ARG1:%.*]] = fadd nnan double [[ARG0]], 2.000000e+00
; CHECK-NEXT: [[OP:%.*]] = fmul double [[NNAN_ARG0]], [[NNAN_ARG1]]
; CHECK-NEXT: [[TMP:%.*]] = fcmp ord double [[OP]], 0.000000e+00
; CHECK-NEXT: ret i1 [[TMP]]
;
%nnan.arg0 = fadd nnan double %arg0, 1.0
%nnan.arg1 = fadd nnan double %arg0, 2.0
%op = fmul double %nnan.arg0, %nnan.arg1
%tmp = fcmp ord double %op, %op
ret i1 %tmp
}
define i1 @nnan_fsub(double %arg0, double %arg1) {
; CHECK-LABEL: @nnan_fsub(
; CHECK-NEXT: [[NNAN_ARG0:%.*]] = fadd nnan double [[ARG0:%.*]], 1.000000e+00
; CHECK-NEXT: [[NNAN_ARG1:%.*]] = fadd nnan double [[ARG0]], 2.000000e+00
; CHECK-NEXT: [[OP:%.*]] = fsub double [[NNAN_ARG0]], [[NNAN_ARG1]]
; CHECK-NEXT: [[TMP:%.*]] = fcmp ord double [[OP]], 0.000000e+00
; CHECK-NEXT: ret i1 [[TMP]]
;
%nnan.arg0 = fadd nnan double %arg0, 1.0
%nnan.arg1 = fadd nnan double %arg0, 2.0
%op = fsub double %nnan.arg0, %nnan.arg1
%tmp = fcmp ord double %op, %op
ret i1 %tmp
}
declare double @func()
define i1 @nnan_fneg() {
; CHECK-LABEL: @nnan_fneg(
; CHECK-NEXT: [[NNAN:%.*]] = call nnan double @func()
; CHECK-NEXT: ret i1 true
;
%nnan = call nnan double @func()
%op = fsub double -0.0, %nnan
%tmp = fcmp ord double %op, %op
ret i1 %tmp
}
define i1 @nnan_unary_fneg() {
; CHECK-LABEL: @nnan_unary_fneg(
; CHECK-NEXT: [[NNAN:%.*]] = call nnan double @func()
; CHECK-NEXT: ret i1 true
;
%nnan = call nnan double @func()
%op = fneg double %nnan
%tmp = fcmp ord double %op, %op
ret i1 %tmp
}
define i1 @fpext_maybe_nan(float %arg0) {
; CHECK-LABEL: @fpext_maybe_nan(
; CHECK-NEXT: [[TMP:%.*]] = fcmp ord float [[ARG0:%.*]], 0.000000e+00
; CHECK-NEXT: ret i1 [[TMP]]
;
%op = fpext float %arg0 to double
%tmp = fcmp ord double %op, %op
ret i1 %tmp
}
define i1 @fptrunc_maybe_nan(double %arg0) {
; CHECK-LABEL: @fptrunc_maybe_nan(
; CHECK-NEXT: [[OP:%.*]] = fptrunc double [[ARG0:%.*]] to float
; CHECK-NEXT: [[TMP:%.*]] = fcmp ord float [[OP]], 0.000000e+00
; CHECK-NEXT: ret i1 [[TMP]]
;
%op = fptrunc double %arg0 to float
%tmp = fcmp ord float %op, %op
ret i1 %tmp
}
define i1 @nnan_fdiv(double %arg0, double %arg1) {
; CHECK-LABEL: @nnan_fdiv(
; CHECK-NEXT: [[NNAN_ARG0:%.*]] = fadd nnan double [[ARG0:%.*]], 1.000000e+00
; CHECK-NEXT: [[NNAN_ARG1:%.*]] = fadd nnan double [[ARG0]], 2.000000e+00
; CHECK-NEXT: [[OP:%.*]] = fdiv double [[NNAN_ARG0]], [[NNAN_ARG1]]
; CHECK-NEXT: [[TMP:%.*]] = fcmp ord double [[OP]], 0.000000e+00
; CHECK-NEXT: ret i1 [[TMP]]
;
%nnan.arg0 = fadd nnan double %arg0, 1.0
%nnan.arg1 = fadd nnan double %arg0, 2.0
%op = fdiv double %nnan.arg0, %nnan.arg1
%tmp = fcmp ord double %op, %op
ret i1 %tmp
}
define i1 @nnan_frem(double %arg0, double %arg1) {
; CHECK-LABEL: @nnan_frem(
; CHECK-NEXT: [[NNAN_ARG0:%.*]] = fadd nnan double [[ARG0:%.*]], 1.000000e+00
; CHECK-NEXT: [[NNAN_ARG1:%.*]] = fadd nnan double [[ARG0]], 2.000000e+00
; CHECK-NEXT: [[OP:%.*]] = frem double [[NNAN_ARG0]], [[NNAN_ARG1]]
; CHECK-NEXT: [[TMP:%.*]] = fcmp ord double [[OP]], 0.000000e+00
; CHECK-NEXT: ret i1 [[TMP]]
;
%nnan.arg0 = fadd nnan double %arg0, 1.0
%nnan.arg1 = fadd nnan double %arg0, 2.0
%op = frem double %nnan.arg0, %nnan.arg1
%tmp = fcmp ord double %op, %op
ret i1 %tmp
}
declare double @llvm.sqrt.f64(double)
declare double @llvm.fabs.f64(double)
declare double @llvm.canonicalize.f64(double)
declare double @llvm.copysign.f64(double, double)
declare double @llvm.exp.f64(double)
declare double @llvm.exp2.f64(double)
declare double @llvm.floor.f64(double)
declare double @llvm.ceil.f64(double)
declare double @llvm.trunc.f64(double)
declare double @llvm.rint.f64(double)
declare double @llvm.nearbyint.f64(double)
declare double @llvm.round.f64(double)
|
