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
8void 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
38void 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
61void 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
83void 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