1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -instsimplify -S | FileCheck %s
3
4; Default NaN constant
5
6define double @fadd_nan_op0(double %x) {
7; CHECK-LABEL: @fadd_nan_op0(
8; CHECK-NEXT:    ret double 0x7FF8000000000000
9;
10  %r = fadd double 0x7FF8000000000000, %x
11  ret double %r
12}
13
14; Sign bit is set
15
16define double @fadd_nan_op1(double %x) {
17; CHECK-LABEL: @fadd_nan_op1(
18; CHECK-NEXT:    ret double 0xFFF8000000000000
19;
20  %r = fadd double %x, 0xFFF8000000000000
21  ret double %r
22}
23
24; Non-zero payload
25
26define float @fsub_nan_op0(float %x) {
27; CHECK-LABEL: @fsub_nan_op0(
28; CHECK-NEXT:    ret float 0x7FFFFF0000000000
29;
30  %r = fsub float 0x7FFFFF0000000000, %x
31  ret float %r
32}
33
34; Signaling
35
36define float @fsub_nan_op1(float %x) {
37; CHECK-LABEL: @fsub_nan_op1(
38; CHECK-NEXT:    ret float 0x7FF1000000000000
39;
40  %r = fsub float %x, 0x7FF1000000000000
41  ret float %r
42}
43
44; Signaling and signed
45
46define double @fmul_nan_op0(double %x) {
47; CHECK-LABEL: @fmul_nan_op0(
48; CHECK-NEXT:    ret double 0xFFF0000000000001
49;
50  %r = fmul double 0xFFF0000000000001, %x
51  ret double %r
52}
53
54; Vector type
55
56define <2 x float> @fmul_nan_op1(<2 x float> %x) {
57; CHECK-LABEL: @fmul_nan_op1(
58; CHECK-NEXT:    ret <2 x float> <float 0x7FF8000000000000, float 0x7FF8000000000000>
59;
60  %r = fmul <2 x float> %x, <float 0x7FF8000000000000, float 0x7FF8000000000000>
61  ret <2 x float> %r
62}
63
64; Vector signed and non-zero payload
65
66define <2 x double> @fdiv_nan_op0(<2 x double> %x) {
67; CHECK-LABEL: @fdiv_nan_op0(
68; CHECK-NEXT:    ret <2 x double> <double 0xFFF800000000000F, double 0xFFF800000000000F>
69;
70  %r = fdiv <2 x double> <double 0xFFF800000000000F, double 0xFFF800000000000F>, %x
71  ret <2 x double>  %r
72}
73
74; Vector with different NaN constant elements
75
76define <2 x half> @fdiv_nan_op1(<2 x half> %x) {
77; CHECK-LABEL: @fdiv_nan_op1(
78; CHECK-NEXT:    ret <2 x half> <half 0xH7FFF, half 0xHFF00>
79;
80  %r = fdiv <2 x half> %x, <half 0xH7FFF, half 0xHFF00>
81  ret <2 x half> %r
82}
83
84; Vector with undef element
85
86define <2 x double> @frem_nan_op0(<2 x double> %x) {
87; CHECK-LABEL: @frem_nan_op0(
88; CHECK-NEXT:    ret <2 x double> <double 0x7FF8000000000000, double 0x7FF8000000000000>
89;
90  %r = frem <2 x double> <double 0xFFFF000000000000, double undef>, %x
91  ret <2 x double> %r
92}
93
94define float @frem_nan_op1(float %x) {
95; CHECK-LABEL: @frem_nan_op1(
96; CHECK-NEXT:    ret float 0x7FF8000000000000
97;
98  %r = frem float %x, 0x7FF8000000000000
99  ret float %r
100}
101
102; Special-case: fneg must only change the sign bit (this is handled by constant folding).
103
104define double @fneg_nan_1(double %x) {
105; CHECK-LABEL: @fneg_nan_1(
106; CHECK-NEXT:    ret double 0xFFFABCDEF0123456
107;
108  %r = fsub double -0.0, 0x7FFABCDEF0123456
109  ret double %r
110}
111
112define <2 x double> @fneg_nan_2(<2 x double> %x) {
113; CHECK-LABEL: @fneg_nan_2(
114; CHECK-NEXT:    ret <2 x double> <double 0x7FF1234567890ABC, double 0xFFF0000000000001>
115;
116  %r = fsub <2 x double> <double -0.0, double -0.0>, <double 0xFFF1234567890ABC, double 0x7FF0000000000001>
117  ret <2 x double> %r
118}
119
120; Repeat all tests with fast-math-flags. Alternate 'nnan' and 'fast' for more coverage.
121
122define float @fadd_nan_op0_nnan(float %x) {
123; CHECK-LABEL: @fadd_nan_op0_nnan(
124; CHECK-NEXT:    ret float 0x7FF8000000000000
125;
126  %r = fadd nnan float 0x7FF8000000000000, %x
127  ret float %r
128}
129
130define float @fadd_nan_op1_fast(float %x) {
131; CHECK-LABEL: @fadd_nan_op1_fast(
132; CHECK-NEXT:    ret float 0x7FF8000000000000
133;
134  %r = fadd fast float %x, 0x7FF8000000000000
135  ret float %r
136}
137
138define float @fsub_nan_op0_fast(float %x) {
139; CHECK-LABEL: @fsub_nan_op0_fast(
140; CHECK-NEXT:    ret float 0x7FF8000000000000
141;
142  %r = fsub fast float 0x7FF8000000000000, %x
143  ret float %r
144}
145
146define float @fsub_nan_op1_nnan(float %x) {
147; CHECK-LABEL: @fsub_nan_op1_nnan(
148; CHECK-NEXT:    ret float 0x7FF8000000000000
149;
150  %r = fsub nnan float %x, 0x7FF8000000000000
151  ret float %r
152}
153
154define float @fmul_nan_op0_nnan(float %x) {
155; CHECK-LABEL: @fmul_nan_op0_nnan(
156; CHECK-NEXT:    ret float 0x7FF8000000000000
157;
158  %r = fmul nnan float 0x7FF8000000000000, %x
159  ret float %r
160}
161
162define float @fmul_nan_op1_fast(float %x) {
163; CHECK-LABEL: @fmul_nan_op1_fast(
164; CHECK-NEXT:    ret float 0x7FF8000000000000
165;
166  %r = fmul fast float %x, 0x7FF8000000000000
167  ret float %r
168}
169
170define float @fdiv_nan_op0_fast(float %x) {
171; CHECK-LABEL: @fdiv_nan_op0_fast(
172; CHECK-NEXT:    ret float 0x7FF8000000000000
173;
174  %r = fdiv fast float 0x7FF8000000000000, %x
175  ret float %r
176}
177
178define float @fdiv_nan_op1_nnan(float %x) {
179; CHECK-LABEL: @fdiv_nan_op1_nnan(
180; CHECK-NEXT:    ret float 0x7FF8000000000000
181;
182  %r = fdiv nnan float %x, 0x7FF8000000000000
183  ret float %r
184}
185
186define float @frem_nan_op0_nnan(float %x) {
187; CHECK-LABEL: @frem_nan_op0_nnan(
188; CHECK-NEXT:    ret float 0x7FF8000000000000
189;
190  %r = frem nnan float 0x7FF8000000000000, %x
191  ret float %r
192}
193
194define float @frem_nan_op1_fast(float %x) {
195; CHECK-LABEL: @frem_nan_op1_fast(
196; CHECK-NEXT:    ret float 0x7FF8000000000000
197;
198  %r = frem fast float %x, 0x7FF8000000000000
199  ret float %r
200}
201
202