1 // RUN: %clang_cc1 -fmath-errno -emit-llvm -o - %s -triple i386-unknown-unknown | FileCheck -check-prefix CHECK-YES %s
2 // RUN: %clang_cc1 -emit-llvm -o - %s -triple i386-unknown-unknown | FileCheck -check-prefix CHECK-NO %s
3 // RUN: %clang_cc1 -menable-unsafe-fp-math -emit-llvm -o - %s -triple i386-unknown-unknown | FileCheck -check-prefix CHECK-FAST %s
4
5 // CHECK-YES-LABEL: define void @test_sqrt
6 // CHECK-NO-LABEL: define void @test_sqrt
7 // CHECK-FAST-LABEL: define void @test_sqrt
test_sqrt(float a0,double a1,long double a2)8 void test_sqrt(float a0, double a1, long double a2) {
9 // Following llvm-gcc's lead, we never emit these as intrinsics;
10 // no-math-errno isn't good enough. We could probably use intrinsics
11 // with appropriate guards if it proves worthwhile.
12
13 // CHECK-YES: call float @sqrtf
14 // CHECK-NO: call float @sqrtf
15 float l0 = sqrtf(a0);
16
17 // CHECK-YES: call double @sqrt
18 // CHECK-NO: call double @sqrt
19 double l1 = sqrt(a1);
20
21 // CHECK-YES: call x86_fp80 @sqrtl
22 // CHECK-NO: call x86_fp80 @sqrtl
23 long double l2 = sqrtl(a2);
24 }
25
26 // CHECK-YES: declare float @sqrtf(float)
27 // CHECK-YES: declare double @sqrt(double)
28 // CHECK-YES: declare x86_fp80 @sqrtl(x86_fp80)
29 // CHECK-NO: declare float @sqrtf(float) [[NUW_RN:#[0-9]+]]
30 // CHECK-NO: declare double @sqrt(double) [[NUW_RN]]
31 // CHECK-NO: declare x86_fp80 @sqrtl(x86_fp80) [[NUW_RN]]
32 // CHECK-FAST: declare float @llvm.sqrt.f32(float)
33 // CHECK-FAST: declare double @llvm.sqrt.f64(double)
34 // CHECK-FAST: declare x86_fp80 @llvm.sqrt.f80(x86_fp80)
35
36 // CHECK-YES-LABEL: define void @test_pow
37 // CHECK-NO-LABEL: define void @test_pow
test_pow(float a0,double a1,long double a2)38 void test_pow(float a0, double a1, long double a2) {
39 // CHECK-YES: call float @powf
40 // CHECK-NO: call float @llvm.pow.f32
41 float l0 = powf(a0, a0);
42
43 // CHECK-YES: call double @pow
44 // CHECK-NO: call double @llvm.pow.f64
45 double l1 = pow(a1, a1);
46
47 // CHECK-YES: call x86_fp80 @powl
48 // CHECK-NO: call x86_fp80 @llvm.pow.f80
49 long double l2 = powl(a2, a2);
50 }
51
52 // CHECK-YES: declare float @powf(float, float)
53 // CHECK-YES: declare double @pow(double, double)
54 // CHECK-YES: declare x86_fp80 @powl(x86_fp80, x86_fp80)
55 // CHECK-NO: declare float @llvm.pow.f32(float, float) [[NUW_RNI:#[0-9]+]]
56 // CHECK-NO: declare double @llvm.pow.f64(double, double) [[NUW_RNI]]
57 // CHECK-NO: declare x86_fp80 @llvm.pow.f80(x86_fp80, x86_fp80) [[NUW_RNI]]
58
59 // CHECK-YES-LABEL: define void @test_fma
60 // CHECK-NO-LABEL: define void @test_fma
test_fma(float a0,double a1,long double a2)61 void test_fma(float a0, double a1, long double a2) {
62 // CHECK-YES: call float @llvm.fma.f32
63 // CHECK-NO: call float @llvm.fma.f32
64 float l0 = fmaf(a0, a0, a0);
65
66 // CHECK-YES: call double @llvm.fma.f64
67 // CHECK-NO: call double @llvm.fma.f64
68 double l1 = fma(a1, a1, a1);
69
70 // CHECK-YES: call x86_fp80 @llvm.fma.f80
71 // CHECK-NO: call x86_fp80 @llvm.fma.f80
72 long double l2 = fmal(a2, a2, a2);
73 }
74
75 // CHECK-YES: declare float @llvm.fma.f32(float, float, float) [[NUW_RN:#[0-9]+]]
76 // CHECK-YES: declare double @llvm.fma.f64(double, double, double) [[NUW_RN]]
77 // CHECK-YES: declare x86_fp80 @llvm.fma.f80(x86_fp80, x86_fp80, x86_fp80) [[NUW_RN]]
78 // CHECK-NO: declare float @llvm.fma.f32(float, float, float) [[NUW_RN2:#[0-9]+]]
79 // CHECK-NO: declare double @llvm.fma.f64(double, double, double) [[NUW_RN2]]
80 // CHECK-NO: declare x86_fp80 @llvm.fma.f80(x86_fp80, x86_fp80, x86_fp80) [[NUW_RN2]]
81
82 // Just checking to make sure these library functions are marked readnone
test_builtins(double d,float f,long double ld)83 void test_builtins(double d, float f, long double ld) {
84 // CHECK-NO: @test_builtins
85 // CHECK-YES: @test_builtins
86 double atan_ = atan(d);
87 long double atanl_ = atanl(ld);
88 float atanf_ = atanf(f);
89 // CHECK-NO: declare double @atan(double) [[NUW_RN]]
90 // CHECK-NO: declare x86_fp80 @atanl(x86_fp80) [[NUW_RN]]
91 // CHECK-NO: declare float @atanf(float) [[NUW_RN]]
92 // CHECK-YES-NOT: declare double @atan(double) [[NUW_RN]]
93 // CHECK-YES-NOT: declare x86_fp80 @atanl(x86_fp80) [[NUW_RN]]
94 // CHECK-YES-NOT: declare float @atanf(float) [[NUW_RN]]
95
96 double atan2_ = atan2(d, 2);
97 long double atan2l_ = atan2l(ld, ld);
98 float atan2f_ = atan2f(f, f);
99 // CHECK-NO: declare double @atan2(double, double) [[NUW_RN]]
100 // CHECK-NO: declare x86_fp80 @atan2l(x86_fp80, x86_fp80) [[NUW_RN]]
101 // CHECK-NO: declare float @atan2f(float, float) [[NUW_RN]]
102 // CHECK-YES-NOT: declare double @atan2(double, double) [[NUW_RN]]
103 // CHECK-YES-NOT: declare x86_fp80 @atan2l(x86_fp80, x86_fp80) [[NUW_RN]]
104 // CHECK-YES-NOT: declare float @atan2f(float, float) [[NUW_RN]]
105
106 double exp_ = exp(d);
107 long double expl_ = expl(ld);
108 float expf_ = expf(f);
109 // CHECK-NO: declare double @exp(double) [[NUW_RN]]
110 // CHECK-NO: declare x86_fp80 @expl(x86_fp80) [[NUW_RN]]
111 // CHECK-NO: declare float @expf(float) [[NUW_RN]]
112 // CHECK-YES-NOT: declare double @exp(double) [[NUW_RN]]
113 // CHECK-YES-NOT: declare x86_fp80 @expl(x86_fp80) [[NUW_RN]]
114 // CHECK-YES-NOT: declare float @expf(float) [[NUW_RN]]
115
116 double log_ = log(d);
117 long double logl_ = logl(ld);
118 float logf_ = logf(f);
119 // CHECK-NO: declare double @log(double) [[NUW_RN]]
120 // CHECK-NO: declare x86_fp80 @logl(x86_fp80) [[NUW_RN]]
121 // CHECK-NO: declare float @logf(float) [[NUW_RN]]
122 // CHECK-YES-NOT: declare double @log(double) [[NUW_RN]]
123 // CHECK-YES-NOT: declare x86_fp80 @logl(x86_fp80) [[NUW_RN]]
124 // CHECK-YES-NOT: declare float @logf(float) [[NUW_RN]]
125 }
126
127 // CHECK-YES: attributes [[NUW_RN]] = { nounwind readnone }
128
129 // CHECK-NO: attributes [[NUW_RN]] = { nounwind readnone{{.*}} }
130 // CHECK-NO: attributes [[NUW_RNI]] = { nounwind readnone }
131