1 ; RUN: opt -S -instcombine < %s | FileCheck %s
3 declare float @llvm.maxnum.f32(float, float) #0
4 declare float @llvm.maxnum.v2f32(<2 x float>, <2 x float>) #0
5 declare <4 x float> @llvm.maxnum.v4f32(<4 x float>, <4 x float>) #0
7 declare double @llvm.maxnum.f64(double, double) #0
8 declare <2 x double> @llvm.maxnum.v2f64(<2 x double>, <2 x double>) #0
10 ; CHECK-LABEL: @constant_fold_maxnum_f32
11 ; CHECK-NEXT: ret float 2.000000e+00
12 define float @constant_fold_maxnum_f32() #0 {
13 %x = call float @llvm.maxnum.f32(float 1.0, float 2.0) #0
17 ; CHECK-LABEL: @constant_fold_maxnum_f32_inv
18 ; CHECK-NEXT: ret float 2.000000e+00
19 define float @constant_fold_maxnum_f32_inv() #0 {
20 %x = call float @llvm.maxnum.f32(float 2.0, float 1.0) #0
24 ; CHECK-LABEL: @constant_fold_maxnum_f32_nan0
25 ; CHECK-NEXT: ret float 2.000000e+00
26 define float @constant_fold_maxnum_f32_nan0() #0 {
27 %x = call float @llvm.maxnum.f32(float 0x7FF8000000000000, float 2.0) #0
31 ; CHECK-LABEL: @constant_fold_maxnum_f32_nan1
32 ; CHECK-NEXT: ret float 2.000000e+00
33 define float @constant_fold_maxnum_f32_nan1() #0 {
34 %x = call float @llvm.maxnum.f32(float 2.0, float 0x7FF8000000000000) #0
38 ; CHECK-LABEL: @constant_fold_maxnum_f32_nan_nan
39 ; CHECK-NEXT: ret float 0x7FF8000000000000
40 define float @constant_fold_maxnum_f32_nan_nan() #0 {
41 %x = call float @llvm.maxnum.f32(float 0x7FF8000000000000, float 0x7FF8000000000000) #0
45 ; CHECK-LABEL: @constant_fold_maxnum_f32_p0_p0
46 ; CHECK-NEXT: ret float 0.000000e+00
47 define float @constant_fold_maxnum_f32_p0_p0() #0 {
48 %x = call float @llvm.maxnum.f32(float 0.0, float 0.0) #0
52 ; CHECK-LABEL: @constant_fold_maxnum_f32_p0_n0
53 ; CHECK-NEXT: ret float 0.000000e+00
54 define float @constant_fold_maxnum_f32_p0_n0() #0 {
55 %x = call float @llvm.maxnum.f32(float 0.0, float -0.0) #0
59 ; CHECK-LABEL: @constant_fold_maxnum_f32_n0_p0
60 ; CHECK-NEXT: ret float -0.000000e+00
61 define float @constant_fold_maxnum_f32_n0_p0() #0 {
62 %x = call float @llvm.maxnum.f32(float -0.0, float 0.0) #0
66 ; CHECK-LABEL: @constant_fold_maxnum_f32_n0_n0
67 ; CHECK-NEXT: ret float -0.000000e+00
68 define float @constant_fold_maxnum_f32_n0_n0() #0 {
69 %x = call float @llvm.maxnum.f32(float -0.0, float -0.0) #0
73 ; CHECK-LABEL: @constant_fold_maxnum_v4f32
74 ; CHECK-NEXT: ret <4 x float> <float 2.000000e+00, float 8.000000e+00, float 1.000000e+01, float 9.000000e+00>
75 define <4 x float> @constant_fold_maxnum_v4f32() #0 {
76 %x = call <4 x float> @llvm.maxnum.v4f32(<4 x float> <float 1.0, float 8.0, float 3.0, float 9.0>, <4 x float> <float 2.0, float 2.0, float 10.0, float 5.0>)
80 ; CHECK-LABEL: @constant_fold_maxnum_f64
81 ; CHECK-NEXT: ret double 2.000000e+00
82 define double @constant_fold_maxnum_f64() #0 {
83 %x = call double @llvm.maxnum.f64(double 1.0, double 2.0) #0
87 ; CHECK-LABEL: @constant_fold_maxnum_f64_nan0
88 ; CHECK-NEXT: ret double 2.000000e+00
89 define double @constant_fold_maxnum_f64_nan0() #0 {
90 %x = call double @llvm.maxnum.f64(double 0x7FF8000000000000, double 2.0) #0
94 ; CHECK-LABEL: @constant_fold_maxnum_f64_nan1
95 ; CHECK-NEXT: ret double 2.000000e+00
96 define double @constant_fold_maxnum_f64_nan1() #0 {
97 %x = call double @llvm.maxnum.f64(double 2.0, double 0x7FF8000000000000) #0
101 ; CHECK-LABEL: @constant_fold_maxnum_f64_nan_nan
102 ; CHECK-NEXT: ret double 0x7FF8000000000000
103 define double @constant_fold_maxnum_f64_nan_nan() #0 {
104 %x = call double @llvm.maxnum.f64(double 0x7FF8000000000000, double 0x7FF8000000000000) #0
108 ; CHECK-LABEL: @canonicalize_constant_maxnum_f32
109 ; CHECK: call float @llvm.maxnum.f32(float %x, float 1.000000e+00)
110 define float @canonicalize_constant_maxnum_f32(float %x) #0 {
111 %y = call float @llvm.maxnum.f32(float 1.0, float %x) #0
115 ; CHECK-LABEL: @noop_maxnum_f32
116 ; CHECK-NEXT: ret float %x
117 define float @noop_maxnum_f32(float %x) #0 {
118 %y = call float @llvm.maxnum.f32(float %x, float %x) #0
122 ; CHECK-LABEL: @maxnum_f32_nan_val
123 ; CHECK-NEXT: ret float %x
124 define float @maxnum_f32_nan_val(float %x) #0 {
125 %y = call float @llvm.maxnum.f32(float 0x7FF8000000000000, float %x) #0
129 ; CHECK-LABEL: @maxnum_f32_val_nan
130 ; CHECK-NEXT: ret float %x
131 define float @maxnum_f32_val_nan(float %x) #0 {
132 %y = call float @llvm.maxnum.f32(float %x, float 0x7FF8000000000000) #0
136 ; CHECK-LABEL: @fold_maxnum_f32_undef_undef
137 ; CHECK-NEXT: ret float undef
138 define float @fold_maxnum_f32_undef_undef(float %x) nounwind {
139 %val = call float @llvm.maxnum.f32(float undef, float undef) #0
143 ; CHECK-LABEL: @fold_maxnum_f32_val_undef
144 ; CHECK-NEXT: ret float %x
145 define float @fold_maxnum_f32_val_undef(float %x) nounwind {
146 %val = call float @llvm.maxnum.f32(float %x, float undef) #0
150 ; CHECK-LABEL: @fold_maxnum_f32_undef_val
151 ; CHECK-NEXT: ret float %x
152 define float @fold_maxnum_f32_undef_val(float %x) nounwind {
153 %val = call float @llvm.maxnum.f32(float undef, float %x) #0
157 ; CHECK-LABEL: @maxnum_x_maxnum_x_y
158 ; CHECK-NEXT: call float @llvm.maxnum.f32(float %x, float %y)
159 ; CHECK-NEXT: ret float
160 define float @maxnum_x_maxnum_x_y(float %x, float %y) #0 {
161 %a = call float @llvm.maxnum.f32(float %x, float %y) #0
162 %b = call float @llvm.maxnum.f32(float %x, float %a) #0
166 ; CHECK-LABEL: @maxnum_y_maxnum_x_y
167 ; CHECK-NEXT: call float @llvm.maxnum.f32(float %x, float %y)
168 ; CHECK-NEXT: ret float
169 define float @maxnum_y_maxnum_x_y(float %x, float %y) #0 {
170 %a = call float @llvm.maxnum.f32(float %x, float %y) #0
171 %b = call float @llvm.maxnum.f32(float %y, float %a) #0
175 ; CHECK-LABEL: @maxnum_z_maxnum_x_y
176 ; CHECK-NEXT: call float @llvm.maxnum.f32(float %x, float %y)
177 ; CHECK-NEXT: call float @llvm.maxnum.f32(float %z, float %a)
178 ; CHECK-NEXT: ret float
179 define float @maxnum_z_maxnum_x_y(float %x, float %y, float %z) #0 {
180 %a = call float @llvm.maxnum.f32(float %x, float %y) #0
181 %b = call float @llvm.maxnum.f32(float %z, float %a) #0
185 ; CHECK-LABEL: @maxnum_maxnum_x_y_z
186 ; CHECK-NEXT: call float @llvm.maxnum.f32(float %x, float %y)
187 ; CHECK-NEXT: call float @llvm.maxnum.f32(float %a, float %z)
188 ; CHECK-NEXT: ret float
189 define float @maxnum_maxnum_x_y_z(float %x, float %y, float %z) #0 {
190 %a = call float @llvm.maxnum.f32(float %x, float %y) #0
191 %b = call float @llvm.maxnum.f32(float %a, float %z) #0
195 ; CHECK-LABEL: @maxnum4
196 ; CHECK-NEXT: call float @llvm.maxnum.f32(float %x, float %y)
197 ; CHECK-NEXT: call float @llvm.maxnum.f32(float %z, float %w)
198 ; CHECK-NEXT: call float @llvm.maxnum.f32(float %a, float %b)
199 ; CHECK-NEXT: ret float
200 define float @maxnum4(float %x, float %y, float %z, float %w) #0 {
201 %a = call float @llvm.maxnum.f32(float %x, float %y) #0
202 %b = call float @llvm.maxnum.f32(float %z, float %w) #0
203 %c = call float @llvm.maxnum.f32(float %a, float %b) #0
207 ; CHECK-LABEL: @fold_maxnum_f32_inf_val
208 ; CHECK-NEXT: ret float 0x7FF0000000000000
209 define float @fold_maxnum_f32_inf_val(float %x) nounwind {
210 %val = call float @llvm.maxnum.f32(float 0x7FF0000000000000, float %x) #0
214 ; CHECK-LABEL: @fold_maxnum_f32_neginf_val
215 ; CHECK-NEXT: call float @llvm.maxnum.f32(float %x, float 0xFFF0000000000000)
216 ; CHECK-NEXT: ret float
217 define float @fold_maxnum_f32_neginf_val(float %x) nounwind {
218 %val = call float @llvm.maxnum.f32(float 0xFFF0000000000000, float %x) #0
222 attributes #0 = { nounwind readnone }