1 // REQUIRES: arm-registered-target
2 // RUN: %clang_cc1 -emit-llvm -o - -triple arm-none-linux-gnueabi %s | FileCheck %s
3 // RUN: %clang_cc1 -emit-llvm -o - -triple arm-none-linux-gnueabihf %s | FileCheck %s
4 // RUN: %clang_cc1 -emit-llvm -o - -triple arm-none-linux-gnueabi -target-feature "+soft-float" -target-feature "+soft-float-abi" %s | FileCheck %s
5 // RUN: %clang_cc1 -emit-llvm -o - -triple arm-none-linux-gnueabi -target-feature "+soft-float" %s | FileCheck %s
6 // RUN: %clang_cc1 -emit-llvm -o - -triple arm-none-eabi %s | FileCheck %s
7 // RUN: %clang_cc1 -emit-llvm -o - -triple arm-none-eabi -meabi gnu %s | FileCheck %s
8 // RUN: %clang_cc1 -emit-llvm -o - -triple arm-none-eabi %s | FileCheck %s
9 // RUN: %clang_cc1 -emit-llvm -o - -triple arm-none-eabi -target-feature "+soft-float" -target-feature "+soft-float-abi" -meabi gnu %s | FileCheck %s
10 // RUN: %clang_cc1 -emit-llvm -o - -triple arm-none-eabi -target-feature "+soft-float" -meabi gnu %s | FileCheck %s
11 // RUN: %clang_cc1 -emit-llvm -o - -triple arm-none-eabihf %s | FileCheck %s
12 // RUN: %clang_cc1 -emit-llvm -o - -triple arm-none-eabihf -meabi gnu %s | FileCheck %s
13
14 // The Runtime ABI for the ARM Architecture IHI0043 section 4.1.2 The
15 // floating-point helper functions to always use the base AAPCS (soft-float)
16 // calling convention.
17 //
18 // These helper functions such as __aeabi_fadd are not explicitly called by
19 // clang, instead they are generated by the ARMISelLowering when they are
20 // needed; clang relies on llvm to use the base AAPCS.
21 //
22 // In this test we check that clang is not directly calling the __aeabi_
23 // functions. We rely on llvm to test that the base AAPCS is used for any
24 // __aeabi_ function from 4.1.2 that is used.
25 //
26 // When compiled to an object file with -mfloat-abi=soft each function F
27 // below should result in a call to __aeabi_F. If clang is changed to call any
28 // of these functions directly the test will need to be altered to check that
29 // arm_aapcscc is used.
30 //
31 // Note that it is only the functions in 4.1.2 that must use the base AAPCS,
32 // other runtime functions such as the _Complex helper routines are not covered.
33
fadd(float a,float b)34 float fadd(float a, float b) { return a + b; }
35 // CHECK-LABEL: define float @fadd(float %a, float %b)
36 // CHECK-NOT: __aeabi_fadd
37 // CHECK: %add = fadd float {{.*}}, {{.*}}
38
fdiv(float a,float b)39 float fdiv(float a, float b) { return a / b; }
40 // CHECK-LABEL: define float @fdiv(float %a, float %b)
41 // CHECK-NOT: __aeabi_fdiv
42 // CHECK: %div = fdiv float {{.*}}, {{.*}}
43
fmul(float a,float b)44 float fmul(float a, float b) { return a * b; }
45 // CHECK-LABEL: define float @fmul(float %a, float %b)
46 // CHECK-NOT: __aeabi_fmul
47 // CHECK: %mul = fmul float {{.*}}, {{.*}}
48
fsub(float a,float b)49 float fsub(float a, float b) { return a - b; }
50 // CHECK-LABEL: define float @fsub(float %a, float %b)
51 // CHECK-NOT: __aeabi_fsub
52 // CHECK: %sub = fsub float {{.*}}, {{.*}}
53
fcmpeq(float a,float b)54 int fcmpeq(float a, float b) { return a == b; }
55 // CHECK-LABEL: define i32 @fcmpeq(float %a, float %b)
56 // CHECK-NOT: __aeabi_fcmpeq
57 // CHECK: %cmp = fcmp oeq float {{.*}}, {{.*}}
58
fcmplt(float a,float b)59 int fcmplt(float a, float b) { return a < b; }
60 // CHECK-LABEL: define i32 @fcmplt(float %a, float %b)
61 // CHECK-NOT: __aeabi_fcmplt
62 // CHECK: %cmp = fcmp olt float {{.*}}, {{.*}}
63
fcmple(float a,float b)64 int fcmple(float a, float b) { return a <= b; }
65 // CHECK-LABEL: define i32 @fcmple(float %a, float %b)
66 // CHECK-NOT: __aeabi_fcmple
67 // CHECK: %cmp = fcmp ole float {{.*}}, {{.*}}
68
fcmpge(float a,float b)69 int fcmpge(float a, float b) { return a >= b; }
70 // CHECK-LABEL: define i32 @fcmpge(float %a, float %b)
71 // CHECK-NOT: __aeabi_fcmpge
72 // CHECK: %cmp = fcmp oge float {{.*}}, {{.*}}
73
fcmpgt(float a,float b)74 int fcmpgt(float a, float b) { return a > b; }
75 // CHECK-LABEL: define i32 @fcmpgt(float %a, float %b)
76 // CHECK-NOT: __aeabi_fcmpgt
77 // CHECK: %cmp = fcmp ogt float {{.*}}, {{.*}}
78
fcmpun(float a,float b)79 int fcmpun(float a, float b) { return __builtin_isunordered(a, b); }
80 // CHECK-LABEL: define i32 @fcmpun(float %a, float %b)
81 // CHECK-NOT: __aeabi_fcmpun
82 // CHECK: %cmp = fcmp uno float {{.*}}, {{.*}}
83
dadd(double a,double b)84 double dadd(double a, double b) { return a + b; }
85 // CHECK-LABEL: define double @dadd(double %a, double %b)
86 // CHECK-NOT: __aeabi_dadd
87 // CHECK: %add = fadd double {{.*}}, {{.*}}
88
ddiv(double a,double b)89 double ddiv(double a, double b) { return a / b; }
90 // CHECK-LABEL: define double @ddiv(double %a, double %b)
91 // CHECK-NOT: __aeabi_ddiv
92 // CHECK: %div = fdiv double {{.*}}, {{.*}}
93
dmul(double a,double b)94 double dmul(double a, double b) { return a * b; }
95 // CHECK-LABEL: define double @dmul(double %a, double %b)
96 // CHECK-NOT: __aeabi_dmul
97 // CHECK: %mul = fmul double {{.*}}, {{.*}}
98
dsub(double a,double b)99 double dsub(double a, double b) { return a - b; }
100 // CHECK-LABEL: define double @dsub(double %a, double %b)
101 // CHECK-NOT: __aeabi_dsub
102 // CHECK: %sub = fsub double {{.*}}, {{.*}}
103
dcmpeq(double a,double b)104 int dcmpeq(double a, double b) { return a == b; }
105 // CHECK-LABEL: define i32 @dcmpeq(double %a, double %b)
106 // CHECK-NOT: __aeabi_dcmpeq
107 // CHECK: %cmp = fcmp oeq double {{.*}}, {{.*}}
108
dcmplt(double a,double b)109 int dcmplt(double a, double b) { return a < b; }
110 // CHECK-LABEL: define i32 @dcmplt(double %a, double %b)
111 // CHECK-NOT: __aeabi_dcmplt
112 // CHECK: %cmp = fcmp olt double {{.*}}, {{.*}}
113
dcmple(double a,double b)114 int dcmple(double a, double b) { return a <= b; }
115 // CHECK-LABEL: define i32 @dcmple(double %a, double %b)
116 // CHECK-NOT: __aeabi_dcmple
117 // CHECK: %cmp = fcmp ole double {{.*}}, {{.*}}
118
dcmpge(double a,double b)119 int dcmpge(double a, double b) { return a >= b; }
120 // CHECK-LABEL: define i32 @dcmpge(double %a, double %b)
121 // CHECK-NOT: __aeabi_dcmpge
122 // CHECK: %cmp = fcmp oge double {{.*}}, {{.*}}
123
dcmpgt(double a,double b)124 int dcmpgt(double a, double b) { return a > b; }
125 // CHECK-LABEL: define i32 @dcmpgt(double %a, double %b)
126 // CHECK-NOT: __aeabi_dcmpgt
127 // CHECK: %cmp = fcmp ogt double {{.*}}, {{.*}}
128
dcmpun(double a,double b)129 int dcmpun(double a, double b) { return __builtin_isunordered(a, b); }
130 // CHECK-LABEL: define i32 @dcmpun(double %a, double %b)
131 // CHECK-NOT: __aeabi_dcmpun
132 // CHECK: %cmp = fcmp uno double {{.*}}, {{.*}}
133
d2iz(double a)134 int d2iz(double a) { return (int)a; }
135 // CHECK-LABEL: define i32 @d2iz(double %a)
136 // CHECK-NOT: __aeabi_d2iz
137 // CHECK: %conv = fptosi double {{.*}} to i32
138
d2uiz(double a)139 unsigned int d2uiz(double a) { return (unsigned int)a; }
140 // CHECK-LABEL: define i32 @d2uiz(double %a)
141 // CHECK-NOT: __aeabi_d2uiz
142 // CHECK: %conv = fptoui double {{.*}} to i32
143
d2lz(double a)144 long long d2lz(double a) { return (long long)a; }
145 // CHECK-LABEL: define i64 @d2lz(double %a)
146 // CHECK-NOT: __aeabi_d2lz
147 // CHECK: %conv = fptosi double {{.*}} to i64
148
d2ulz(double a)149 unsigned long long d2ulz(double a) { return (unsigned long long)a; }
150 // CHECK-LABEL: define i64 @d2ulz(double %a)
151 // CHECK-NOT: __aeabi_d2ulz
152 // CHECK: %conv = fptoui double {{.*}} to i64
153
f2iz(float a)154 int f2iz(float a) { return (int)a; }
155 // CHECK-LABEL: define i32 @f2iz(float %a)
156 // CHECK-NOT: __aeabi_f2iz
157 // CHECK: %conv = fptosi float {{.*}} to i32
158
f2uiz(float a)159 unsigned int f2uiz(float a) { return (unsigned int)a; }
160 // CHECK-LABEL: define i32 @f2uiz(float %a)
161 // CHECK-NOT: __aeabi_f2uiz
162 // CHECK: %conv = fptoui float {{.*}} to i32
163
f2lz(float a)164 long long f2lz(float a) { return (long long)a; }
165 // CHECK-LABEL: define i64 @f2lz(float %a)
166 // CHECK-NOT: __aeabi_f2lz
167 // CHECK: %conv = fptosi float {{.*}} to i64
168
f2ulz(float a)169 unsigned long long f2ulz(float a) { return (unsigned long long)a; }
170 // CHECK-LABEL: define i64 @f2ulz(float %a)
171 // CHECK-NOT: __aeabi_f2ulz
172 // CHECK: %conv = fptoui float {{.*}} to i64
173
d2f(double a)174 float d2f(double a) { return (float)a; }
175 // CHECK-LABEL: define float @d2f(double %a)
176 // CHECK-NOT: __aeabi_d2f
177 // CHECK: %conv = fptrunc double {{.*}} to float
178
f2d(float a)179 double f2d(float a) { return (double)a; }
180 // CHECK-LABEL: define double @f2d(float %a)
181 // CHECK-NOT: __aeabi_f2d
182 // CHECK: %conv = fpext float {{.*}} to double
183
i2d(int a)184 double i2d(int a) { return (double)a; }
185 // CHECK-LABEL: define double @i2d(i32 %a)
186 // CHECK-NOT: __aeabi_i2d
187 // CHECK: %conv = sitofp i32 {{.*}} to double
188
ui2d(unsigned int a)189 double ui2d(unsigned int a) { return (double)a; }
190 // CHECK-LABEL: define double @ui2d(i32 %a)
191 // CHECK-NOT: __aeabi_ui2d
192 // CHECK: %conv = uitofp i32 {{.*}} to double
193
l2d(long long a)194 double l2d(long long a) { return (double)a; }
195 // CHECK-LABEL: define double @l2d(i64 %a)
196 // CHECK-NOT: __aeabi_l2d
197 // CHECK: %conv = sitofp i64 {{.*}} to double
198
ul2d(unsigned long long a)199 double ul2d(unsigned long long a) { return (unsigned long long)a; }
200 // CHECK-LABEL: define double @ul2d(i64 %a)
201 // CHECK-NOT: __aeabi_ul2d
202 // CHECK: %conv = uitofp i64 {{.*}} to double
203
i2f(int a)204 float i2f(int a) { return (int)a; }
205 // CHECK-LABEL: define float @i2f(i32 %a)
206 // CHECK-NOT: __aeabi_i2f
207 // CHECK: %conv = sitofp i32 {{.*}} to float
208
ui2f(unsigned int a)209 float ui2f(unsigned int a) { return (unsigned int)a; }
210 // CHECK-LABEL: define float @ui2f(i32 %a)
211 // CHECK-NOT: __aeabi_ui2f
212 // CHECK: %conv = uitofp i32 {{.*}} to float
213
l2f(long long a)214 float l2f(long long a) { return (long long)a; }
215 // CHECK-LABEL: define float @l2f(i64 %a)
216 // CHECK-NOT: __aeabi_l2f
217 // CHECK: %conv = sitofp i64 {{.*}} to float
218
ul2f(unsigned long long a)219 float ul2f(unsigned long long a) { return (unsigned long long)a; }
220 // CHECK-LABEL: define float @ul2f(i64 %a)
221 // CHECK-NOT: __aeabi_ul2f
222 // CHECK: %conv = uitofp i64 {{.*}} to float
223
224 // Functions in section 4.1.2 not used by llvm and don't easily map directly to
225 // C source code.
226 // cfcmpeq
227 // cfcmple
228 // cfrcmple
229 // cdcmpeq
230 // cdcmple
231 // cdrcmple
232 // frsub
233 // drsub
234