1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt -S -passes=instcombine %s | FileCheck %s
4 @var = external global i32, align 4
6 ; fcmp olt fabs(x), smallest_normalized_number -> fcmp oeq x, 0.0
7 ; https://alive2.llvm.org/ce/z/fib8cf
8 define void @denormal_input_preserve_sign_fcmp_olt_smallest_normalized(float %f32, double %f64, half %f16) #0 {
9 ; CHECK-LABEL: @denormal_input_preserve_sign_fcmp_olt_smallest_normalized(
10 ; CHECK-NEXT: [[CMPF32:%.*]] = fcmp oeq float [[F32:%.*]], 0.000000e+00
11 ; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 1
12 ; CHECK-NEXT: [[CMPF64:%.*]] = fcmp oeq double [[F64:%.*]], 0.000000e+00
13 ; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 1
14 ; CHECK-NEXT: [[CMPF16:%.*]] = fcmp oeq half [[F16:%.*]], 0xH0000
15 ; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 1
16 ; CHECK-NEXT: [[CMPF32_FLAGS:%.*]] = fcmp oeq float [[F32]], 0.000000e+00
17 ; CHECK-NEXT: store volatile i1 [[CMPF32_FLAGS]], ptr @var, align 1
18 ; CHECK-NEXT: ret void
20 %f32.fabs = call float @llvm.fabs.f32(float %f32)
21 %cmpf32 = fcmp olt float %f32.fabs, 0x3810000000000000
22 store volatile i1 %cmpf32, ptr @var
24 %f64.fabs = call double @llvm.fabs.f64(double %f64)
25 %cmpf64 = fcmp olt double %f64.fabs, 0x10000000000000
26 store volatile i1 %cmpf64, ptr @var
28 %f16.fabs = call half @llvm.fabs.f16(half %f16)
29 %cmpf16 = fcmp olt half %f16.fabs, 0xH0400
30 store volatile i1 %cmpf16, ptr @var
32 %f32.fabs.flags = call nsz nnan float @llvm.fabs.f32(float %f32)
33 %cmpf32.flags = fcmp olt float %f32.fabs.flags, 0x3810000000000000
34 store volatile i1 %cmpf32.flags, ptr @var
39 ; fcmp uge fabs(x), smallest_normalized_number -> fcmp une x, 0.0
40 ; https://alive2.llvm.org/ce/z/xmqBXx
41 define void @denormal_input_preserve_sign_fcmp_uge_smallest_normalized(float %f32, double %f64, half %f16) #0 {
42 ; CHECK-LABEL: @denormal_input_preserve_sign_fcmp_uge_smallest_normalized(
43 ; CHECK-NEXT: [[CMPF32:%.*]] = fcmp une float [[F32:%.*]], 0.000000e+00
44 ; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 1
45 ; CHECK-NEXT: [[CMPF64:%.*]] = fcmp une double [[F64:%.*]], 0.000000e+00
46 ; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 1
47 ; CHECK-NEXT: [[CMPF16:%.*]] = fcmp une half [[F16:%.*]], 0xH0000
48 ; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 1
49 ; CHECK-NEXT: ret void
51 %f32.fabs = call float @llvm.fabs.f32(float %f32)
52 %cmpf32 = fcmp uge float %f32.fabs, 0x3810000000000000
53 store volatile i1 %cmpf32, ptr @var
55 %f64.fabs = call double @llvm.fabs.f64(double %f64)
56 %cmpf64 = fcmp uge double %f64.fabs, 0x10000000000000
57 store volatile i1 %cmpf64, ptr @var
59 %f16.fabs = call half @llvm.fabs.f16(half %f16)
60 %cmpf16 = fcmp uge half %f16.fabs, 0xH0400
61 store volatile i1 %cmpf16, ptr @var
65 ; fcmp oge fabs(x), smallest_normalized_number -> fcmp one x, 0.0
66 ; https://alive2.llvm.org/ce/z/ZucNzF
67 define void @denormal_input_preserve_sign_fcmp_oge_smallest_normalized(float %f32, double %f64, half %f16) #0 {
68 ; CHECK-LABEL: @denormal_input_preserve_sign_fcmp_oge_smallest_normalized(
69 ; CHECK-NEXT: [[CMPF32:%.*]] = fcmp one float [[F32:%.*]], 0.000000e+00
70 ; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 1
71 ; CHECK-NEXT: [[CMPF64:%.*]] = fcmp one double [[F64:%.*]], 0.000000e+00
72 ; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 1
73 ; CHECK-NEXT: [[CMPF16:%.*]] = fcmp one half [[F16:%.*]], 0xH0000
74 ; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 1
75 ; CHECK-NEXT: ret void
77 %f32.fabs = call float @llvm.fabs.f32(float %f32)
78 %cmpf32 = fcmp oge float %f32.fabs, 0x3810000000000000
79 store volatile i1 %cmpf32, ptr @var
81 %f64.fabs = call double @llvm.fabs.f64(double %f64)
82 %cmpf64 = fcmp oge double %f64.fabs, 0x10000000000000
83 store volatile i1 %cmpf64, ptr @var
85 %f16.fabs = call half @llvm.fabs.f16(half %f16)
86 %cmpf16 = fcmp oge half %f16.fabs, 0xH0400
87 store volatile i1 %cmpf16, ptr @var
91 ; fcmp ult fabs(x), smallest_normalized_number -> fcmp ueq x, 0.0
92 ; https://alive2.llvm.org/ce/z/csAhZ2
93 define void @denormal_input_preserve_sign_fcmp_ult_smallest_normalized(float %f32, double %f64, half %f16) #0 {
94 ; CHECK-LABEL: @denormal_input_preserve_sign_fcmp_ult_smallest_normalized(
95 ; CHECK-NEXT: [[CMPF32:%.*]] = fcmp ueq float [[F32:%.*]], 0.000000e+00
96 ; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 1
97 ; CHECK-NEXT: [[CMPF64:%.*]] = fcmp ueq double [[F64:%.*]], 0.000000e+00
98 ; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 1
99 ; CHECK-NEXT: [[CMPF16:%.*]] = fcmp ueq half [[F16:%.*]], 0xH0000
100 ; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 1
101 ; CHECK-NEXT: ret void
103 %f32.fabs = call float @llvm.fabs.f32(float %f32)
104 %cmpf32 = fcmp ult float %f32.fabs, 0x3810000000000000
105 store volatile i1 %cmpf32, ptr @var
107 %f64.fabs = call double @llvm.fabs.f64(double %f64)
108 %cmpf64 = fcmp ult double %f64.fabs, 0x10000000000000
109 store volatile i1 %cmpf64, ptr @var
111 %f16.fabs = call half @llvm.fabs.f16(half %f16)
112 %cmpf16 = fcmp ult half %f16.fabs, 0xH0400
113 store volatile i1 %cmpf16, ptr @var
117 define void @denormal_input_preserve_sign_vector_fcmp_olt_smallest_normalized(<2 x float> %f32, <2 x double> %f64, <2 x half> %f16) #0 {
118 ; CHECK-LABEL: @denormal_input_preserve_sign_vector_fcmp_olt_smallest_normalized(
119 ; CHECK-NEXT: [[CMPF32:%.*]] = fcmp oeq <2 x float> [[F32:%.*]], zeroinitializer
120 ; CHECK-NEXT: store volatile <2 x i1> [[CMPF32]], ptr @var, align 1
121 ; CHECK-NEXT: [[CMPF64:%.*]] = fcmp oeq <2 x double> [[F64:%.*]], zeroinitializer
122 ; CHECK-NEXT: store volatile <2 x i1> [[CMPF64]], ptr @var, align 1
123 ; CHECK-NEXT: [[CMPF16:%.*]] = fcmp oeq <2 x half> [[F16:%.*]], zeroinitializer
124 ; CHECK-NEXT: store volatile <2 x i1> [[CMPF16]], ptr @var, align 1
125 ; CHECK-NEXT: ret void
127 %f32.fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %f32)
128 %cmpf32 = fcmp olt <2 x float> %f32.fabs, <float 0x3810000000000000, float 0x3810000000000000>
129 store volatile <2 x i1> %cmpf32, ptr @var
131 %f64.fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %f64)
132 %cmpf64 = fcmp olt <2 x double> %f64.fabs, <double 0x10000000000000, double 0x10000000000000>
133 store volatile <2 x i1> %cmpf64, ptr @var
135 %f16.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %f16)
136 %cmpf16 = fcmp olt <2 x half> %f16.fabs, <half 0xH0400, half 0xH0400>
137 store volatile <2 x i1> %cmpf16, ptr @var
141 define void @denormal_input_preserve_sign_vector_fcmp_uge_smallest_normalized(<2 x float> %f32, <2 x double> %f64, <2 x half> %f16) #0 {
142 ; CHECK-LABEL: @denormal_input_preserve_sign_vector_fcmp_uge_smallest_normalized(
143 ; CHECK-NEXT: [[CMPF32:%.*]] = fcmp une <2 x float> [[F32:%.*]], zeroinitializer
144 ; CHECK-NEXT: store volatile <2 x i1> [[CMPF32]], ptr @var, align 1
145 ; CHECK-NEXT: [[CMPF64:%.*]] = fcmp une <2 x double> [[F64:%.*]], zeroinitializer
146 ; CHECK-NEXT: store volatile <2 x i1> [[CMPF64]], ptr @var, align 1
147 ; CHECK-NEXT: [[CMPF16:%.*]] = fcmp une <2 x half> [[F16:%.*]], zeroinitializer
148 ; CHECK-NEXT: store volatile <2 x i1> [[CMPF16]], ptr @var, align 1
149 ; CHECK-NEXT: ret void
151 %f32.fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %f32)
152 %cmpf32 = fcmp uge <2 x float> %f32.fabs, <float 0x3810000000000000, float 0x3810000000000000>
153 store volatile <2 x i1> %cmpf32, ptr @var
155 %f64.fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %f64)
156 %cmpf64 = fcmp uge <2 x double> %f64.fabs, <double 0x10000000000000, double 0x10000000000000>
157 store volatile <2 x i1> %cmpf64, ptr @var
159 %f16.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %f16)
160 %cmpf16 = fcmp uge <2 x half> %f16.fabs, <half 0xH0400, half 0xH0400>
161 store volatile <2 x i1> %cmpf16, ptr @var
165 define void @denormal_input_preserve_sign_vector_fcmp_oge_smallest_normalized(<2 x float> %f32, <2 x double> %f64, <2 x half> %f16) #0 {
166 ; CHECK-LABEL: @denormal_input_preserve_sign_vector_fcmp_oge_smallest_normalized(
167 ; CHECK-NEXT: [[CMPF32:%.*]] = fcmp one <2 x float> [[F32:%.*]], zeroinitializer
168 ; CHECK-NEXT: store volatile <2 x i1> [[CMPF32]], ptr @var, align 1
169 ; CHECK-NEXT: [[CMPF64:%.*]] = fcmp one <2 x double> [[F64:%.*]], zeroinitializer
170 ; CHECK-NEXT: store volatile <2 x i1> [[CMPF64]], ptr @var, align 1
171 ; CHECK-NEXT: [[CMPF16:%.*]] = fcmp one <2 x half> [[F16:%.*]], zeroinitializer
172 ; CHECK-NEXT: store volatile <2 x i1> [[CMPF16]], ptr @var, align 1
173 ; CHECK-NEXT: ret void
175 %f32.fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %f32)
176 %cmpf32 = fcmp oge <2 x float> %f32.fabs, <float 0x3810000000000000, float 0x3810000000000000>
177 store volatile <2 x i1> %cmpf32, ptr @var
179 %f64.fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %f64)
180 %cmpf64 = fcmp oge <2 x double> %f64.fabs, <double 0x10000000000000, double 0x10000000000000>
181 store volatile <2 x i1> %cmpf64, ptr @var
183 %f16.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %f16)
184 %cmpf16 = fcmp oge <2 x half> %f16.fabs, <half 0xH0400, half 0xH0400>
185 store volatile <2 x i1> %cmpf16, ptr @var
189 define void @denormal_input_preserve_sign_vector_fcmp_ult_smallest_normalized(<2 x float> %f32, <2 x double> %f64, <2 x half> %f16) #0 {
190 ; CHECK-LABEL: @denormal_input_preserve_sign_vector_fcmp_ult_smallest_normalized(
191 ; CHECK-NEXT: [[CMPF32:%.*]] = fcmp ueq <2 x float> [[F32:%.*]], zeroinitializer
192 ; CHECK-NEXT: store volatile <2 x i1> [[CMPF32]], ptr @var, align 1
193 ; CHECK-NEXT: [[CMPF64:%.*]] = fcmp ueq <2 x double> [[F64:%.*]], zeroinitializer
194 ; CHECK-NEXT: store volatile <2 x i1> [[CMPF64]], ptr @var, align 1
195 ; CHECK-NEXT: [[CMPF16:%.*]] = fcmp ueq <2 x half> [[F16:%.*]], zeroinitializer
196 ; CHECK-NEXT: store volatile <2 x i1> [[CMPF16]], ptr @var, align 1
197 ; CHECK-NEXT: ret void
199 %f32.fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %f32)
200 %cmpf32 = fcmp ult <2 x float> %f32.fabs, <float 0x3810000000000000, float 0x3810000000000000>
201 store volatile <2 x i1> %cmpf32, ptr @var
203 %f64.fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %f64)
204 %cmpf64 = fcmp ult <2 x double> %f64.fabs, <double 0x10000000000000, double 0x10000000000000>
205 store volatile <2 x i1> %cmpf64, ptr @var
207 %f16.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %f16)
208 %cmpf16 = fcmp ult <2 x half> %f16.fabs, <half 0xH0400, half 0xH0400>
209 store volatile <2 x i1> %cmpf16, ptr @var
213 ; fcmp olt fabs(x), smallest_normalized_number -> fcmp oeq x, 0.0
214 ; https://alive2.llvm.org/ce/z/mpduXS
215 define void @denormal_input_positive_zero_fcmp_olt_smallest_normalized(float %f32, double %f64, half %f16) #1 {
216 ; CHECK-LABEL: @denormal_input_positive_zero_fcmp_olt_smallest_normalized(
217 ; CHECK-NEXT: [[CMPF32:%.*]] = fcmp oeq float [[F32:%.*]], 0.000000e+00
218 ; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 1
219 ; CHECK-NEXT: [[CMPF64:%.*]] = fcmp oeq double [[F64:%.*]], 0.000000e+00
220 ; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 1
221 ; CHECK-NEXT: [[CMPF16:%.*]] = fcmp oeq half [[F16:%.*]], 0xH0000
222 ; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 1
223 ; CHECK-NEXT: ret void
225 %f32.fabs = call float @llvm.fabs.f32(float %f32)
226 %cmpf32 = fcmp olt float %f32.fabs, 0x3810000000000000
227 store volatile i1 %cmpf32, ptr @var
229 %f64.fabs = call double @llvm.fabs.f64(double %f64)
230 %cmpf64 = fcmp olt double %f64.fabs, 0x10000000000000
231 store volatile i1 %cmpf64, ptr @var
233 %f16.fabs = call half @llvm.fabs.f16(half %f16)
234 %cmpf16 = fcmp olt half %f16.fabs, 0xH0400
235 store volatile i1 %cmpf16, ptr @var
239 ; Should not fold with IEEE inputs.
240 define void @denormal_input_ieee(float %f32, double %f64, half %f16) #2 {
241 ; CHECK-LABEL: @denormal_input_ieee(
242 ; CHECK-NEXT: [[F32_FABS:%.*]] = call float @llvm.fabs.f32(float [[F32:%.*]])
243 ; CHECK-NEXT: [[CMPF32:%.*]] = fcmp olt float [[F32_FABS]], 0x3810000000000000
244 ; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 1
245 ; CHECK-NEXT: [[F64_FABS:%.*]] = call double @llvm.fabs.f64(double [[F64:%.*]])
246 ; CHECK-NEXT: [[CMPF64:%.*]] = fcmp olt double [[F64_FABS]], 0x10000000000000
247 ; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 1
248 ; CHECK-NEXT: [[F16_FABS:%.*]] = call half @llvm.fabs.f16(half [[F16:%.*]])
249 ; CHECK-NEXT: [[CMPF16:%.*]] = fcmp olt half [[F16_FABS]], 0xH0400
250 ; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 1
251 ; CHECK-NEXT: ret void
253 %f32.fabs = call float @llvm.fabs.f32(float %f32)
254 %cmpf32 = fcmp olt float %f32.fabs, 0x3810000000000000
255 store volatile i1 %cmpf32, ptr @var
257 %f64.fabs = call double @llvm.fabs.f64(double %f64)
258 %cmpf64 = fcmp olt double %f64.fabs, 0x10000000000000
259 store volatile i1 %cmpf64, ptr @var
261 %f16.fabs = call half @llvm.fabs.f16(half %f16)
262 %cmpf16 = fcmp olt half %f16.fabs, 0xH0400
263 store volatile i1 %cmpf16, ptr @var
267 ; Only f32 case should fold.
268 define void @denormal_input_preserve_sign_f32_only(float %f32, double %f64, half %f16) #3 {
269 ; CHECK-LABEL: @denormal_input_preserve_sign_f32_only(
270 ; CHECK-NEXT: [[CMPF32:%.*]] = fcmp oeq float [[F32:%.*]], 0.000000e+00
271 ; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 1
272 ; CHECK-NEXT: [[F64_FABS:%.*]] = call double @llvm.fabs.f64(double [[F64:%.*]])
273 ; CHECK-NEXT: [[CMPF64:%.*]] = fcmp olt double [[F64_FABS]], 0x10000000000000
274 ; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 1
275 ; CHECK-NEXT: [[F16_FABS:%.*]] = call half @llvm.fabs.f16(half [[F16:%.*]])
276 ; CHECK-NEXT: [[CMPF16:%.*]] = fcmp olt half [[F16_FABS]], 0xH0400
277 ; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 1
278 ; CHECK-NEXT: ret void
280 %f32.fabs = call float @llvm.fabs.f32(float %f32)
281 %cmpf32 = fcmp olt float %f32.fabs, 0x3810000000000000
282 store volatile i1 %cmpf32, ptr @var
284 %f64.fabs = call double @llvm.fabs.f64(double %f64)
285 %cmpf64 = fcmp olt double %f64.fabs, 0x10000000000000
286 store volatile i1 %cmpf64, ptr @var
288 %f16.fabs = call half @llvm.fabs.f16(half %f16)
289 %cmpf16 = fcmp olt half %f16.fabs, 0xH0400
290 store volatile i1 %cmpf16, ptr @var
294 define void @wrong_fcmp_type_ole(float %f32, double %f64, half %f16) #0 {
295 ; CHECK-LABEL: @wrong_fcmp_type_ole(
296 ; CHECK-NEXT: [[F32_FABS:%.*]] = call float @llvm.fabs.f32(float [[F32:%.*]])
297 ; CHECK-NEXT: [[CMPF32:%.*]] = fcmp ole float [[F32_FABS]], 0x3810000000000000
298 ; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 1
299 ; CHECK-NEXT: [[F64_FABS:%.*]] = call double @llvm.fabs.f64(double [[F64:%.*]])
300 ; CHECK-NEXT: [[CMPF64:%.*]] = fcmp ole double [[F64_FABS]], 0x10000000000000
301 ; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 1
302 ; CHECK-NEXT: [[F16_FABS:%.*]] = call half @llvm.fabs.f16(half [[F16:%.*]])
303 ; CHECK-NEXT: [[CMPF16:%.*]] = fcmp ole half [[F16_FABS]], 0xH0400
304 ; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 1
305 ; CHECK-NEXT: ret void
307 %f32.fabs = call float @llvm.fabs.f32(float %f32)
308 %cmpf32 = fcmp ole float %f32.fabs, 0x3810000000000000
309 store volatile i1 %cmpf32, ptr @var
311 %f64.fabs = call double @llvm.fabs.f64(double %f64)
312 %cmpf64 = fcmp ole double %f64.fabs, 0x10000000000000
313 store volatile i1 %cmpf64, ptr @var
315 %f16.fabs = call half @llvm.fabs.f16(half %f16)
316 %cmpf16 = fcmp ole half %f16.fabs, 0xH0400
317 store volatile i1 %cmpf16, ptr @var
321 define void @missing_fabs(float %f32, double %f64, half %f16) #0 {
322 ; CHECK-LABEL: @missing_fabs(
323 ; CHECK-NEXT: [[CMPF32:%.*]] = fcmp olt float [[F32:%.*]], 0x3810000000000000
324 ; CHECK-NEXT: store volatile i1 [[CMPF32]], ptr @var, align 1
325 ; CHECK-NEXT: [[CMPF64:%.*]] = fcmp olt double [[F64:%.*]], 0x10000000000000
326 ; CHECK-NEXT: store volatile i1 [[CMPF64]], ptr @var, align 1
327 ; CHECK-NEXT: [[CMPF16:%.*]] = fcmp olt half [[F16:%.*]], 0xH0400
328 ; CHECK-NEXT: store volatile i1 [[CMPF16]], ptr @var, align 1
329 ; CHECK-NEXT: ret void
331 %cmpf32 = fcmp olt float %f32, 0x3810000000000000
332 store volatile i1 %cmpf32, ptr @var
334 %cmpf64 = fcmp olt double %f64, 0x10000000000000
335 store volatile i1 %cmpf64, ptr @var
337 %cmpf16 = fcmp olt half %f16, 0xH0400
338 store volatile i1 %cmpf16, ptr @var
342 declare float @llvm.fabs.f32(float)
343 declare <2 x float> @llvm.fabs.v2f32(<2 x float>)
345 declare half @llvm.fabs.f16(half)
346 declare <2 x half> @llvm.fabs.v2f16(<2 x half>)
348 declare double @llvm.fabs.f64(double)
349 declare <2 x double> @llvm.fabs.v2f64(<2 x double>)
351 attributes #0 = { "denormal-fp-math"="ieee,preserve-sign" }
352 attributes #1 = { "denormal-fp-math"="ieee,positive-zero" }
353 attributes #2 = { "denormal-fp-math"="ieee,iee" }
354 attributes #3 = { "denormal-fp-math-f32"="ieee,preserve-sign" }