// RUN: %clang_cc1 -Wno-implicit-function-declaration -fmath-errno -emit-llvm -o - %s -triple i386-unknown-unknown | FileCheck -check-prefix CHECK-YES %s
// RUN: %clang_cc1 -Wno-implicit-function-declaration -emit-llvm -o - %s -triple i386-unknown-unknown | FileCheck -check-prefix CHECK-NO %s
// RUN: %clang_cc1 -Wno-implicit-function-declaration -funsafe-math-optimizations -emit-llvm -o - %s -triple i386-unknown-unknown | FileCheck -check-prefix CHECK-FAST %s

// CHECK-YES-LABEL: define{{.*}} void @test_sqrt
// CHECK-NO-LABEL: define{{.*}} void @test_sqrt
// CHECK-FAST-LABEL: define{{.*}} void @test_sqrt
void test_sqrt(float a0, double a1, long double a2) {
  // CHECK-YES: call float @sqrtf
  // CHECK-NO: call float @llvm.sqrt.f32(float
  // CHECK-FAST: call reassoc nsz arcp afn float @llvm.sqrt.f32(float
  float l0 = sqrtf(a0);

  // CHECK-YES: call double @sqrt
  // CHECK-NO: call double @llvm.sqrt.f64(double
  // CHECK-FAST: call reassoc nsz arcp afn double @llvm.sqrt.f64(double
  double l1 = sqrt(a1);

  // CHECK-YES: call x86_fp80 @sqrtl
  // CHECK-NO: call x86_fp80 @llvm.sqrt.f80(x86_fp80
  // CHECK-FAST: call reassoc nsz arcp afn x86_fp80 @llvm.sqrt.f80(x86_fp80
  long double l2 = sqrtl(a2);
}

// CHECK-YES: declare float @sqrtf(float noundef)
// CHECK-YES: declare double @sqrt(double noundef)
// CHECK-YES: declare x86_fp80 @sqrtl(x86_fp80 noundef)
// CHECK-NO: declare float @llvm.sqrt.f32(float)
// CHECK-NO: declare double @llvm.sqrt.f64(double)
// CHECK-NO: declare x86_fp80 @llvm.sqrt.f80(x86_fp80)
// CHECK-FAST: declare float @llvm.sqrt.f32(float)
// CHECK-FAST: declare double @llvm.sqrt.f64(double)
// CHECK-FAST: declare x86_fp80 @llvm.sqrt.f80(x86_fp80)

// CHECK-YES-LABEL: define{{.*}} void @test_pow
// CHECK-NO-LABEL: define{{.*}} void @test_pow
void test_pow(float a0, double a1, long double a2) {
  // CHECK-YES: call float @powf
  // CHECK-NO: call float @llvm.pow.f32
  float l0 = powf(a0, a0);

  // CHECK-YES: call double @pow
  // CHECK-NO: call double @llvm.pow.f64
  double l1 = pow(a1, a1);

  // CHECK-YES: call x86_fp80 @powl
  // CHECK-NO: call x86_fp80 @llvm.pow.f80
  long double l2 = powl(a2, a2);
}

// CHECK-YES: declare float @powf(float noundef, float noundef)
// CHECK-YES: declare double @pow(double noundef, double noundef)
// CHECK-YES: declare x86_fp80 @powl(x86_fp80 noundef, x86_fp80 noundef)
// CHECK-NO: declare float @llvm.pow.f32(float, float) [[NUW_RNI:#[0-9]+]]
// CHECK-NO: declare double @llvm.pow.f64(double, double) [[NUW_RNI]]
// CHECK-NO: declare x86_fp80 @llvm.pow.f80(x86_fp80, x86_fp80) [[NUW_RNI]]

// CHECK-YES-LABEL: define{{.*}} void @test_fma
// CHECK-NO-LABEL: define{{.*}} void @test_fma
void test_fma(float a0, double a1, long double a2) {
    // CHECK-YES: call float @fmaf
    // CHECK-NO: call float @llvm.fma.f32
    float l0 = fmaf(a0, a0, a0);

    // CHECK-YES: call double @fma
    // CHECK-NO: call double @llvm.fma.f64
    double l1 = fma(a1, a1, a1);

    // CHECK-YES: call x86_fp80 @fmal
    // CHECK-NO: call x86_fp80 @llvm.fma.f80
    long double l2 = fmal(a2, a2, a2);
}

// CHECK-YES: declare float @fmaf(float noundef, float noundef, float noundef)
// CHECK-YES: declare double @fma(double noundef, double noundef, double noundef)
// CHECK-YES: declare x86_fp80 @fmal(x86_fp80 noundef, x86_fp80 noundef, x86_fp80 noundef)
// CHECK-NO: declare float @llvm.fma.f32(float, float, float) [[NUW_RN2:#[0-9]+]]
// CHECK-NO: declare double @llvm.fma.f64(double, double, double) [[NUW_RN2]]
// CHECK-NO: declare x86_fp80 @llvm.fma.f80(x86_fp80, x86_fp80, x86_fp80) [[NUW_RN2]]

// Just checking to make sure these library functions are marked readnone
void test_builtins(double d, float f, long double ld) {
// CHECK-NO: @test_builtins
// CHECK-YES: @test_builtins
  double atan_ = atan(d);
  long double atanl_ = atanl(ld);
  float atanf_ = atanf(f);
// CHECK-NO: declare double @llvm.atan.f64(double) [[NUW_RNI:#[0-9]+]]
// CHECK-NO: declare x86_fp80 @llvm.atan.f80(x86_fp80) [[NUW_RNI]]
// CHECK-NO: declare float @llvm.atan.f32(float) [[NUW_RNI]]
// CHECK-YES: declare double @atan(double noundef) [[NUW:#[0-9]+]]
// CHECK-YES: declare x86_fp80 @atanl(x86_fp80 noundef) [[NUW]]
// CHECK-YES: declare float @atanf(float noundef) [[NUW]]

  double atan2_ = atan2(d, 2);
  long double atan2l_ = atan2l(ld, ld);
  float atan2f_ = atan2f(f, f);
// CHECK-NO: declare double @llvm.atan2.f64(double, double) [[NUW_RNI]]
// CHECK-NO: declare x86_fp80 @llvm.atan2.f80(x86_fp80, x86_fp80) [[NUW_RNI]]
// CHECK-NO: declare float @llvm.atan2.f32(float, float) [[NUW_RNI]]
// CHECK-YES: declare double @atan2(double noundef, double noundef) [[NUW]]
// CHECK-YES: declare x86_fp80 @atan2l(x86_fp80 noundef, x86_fp80 noundef) [[NUW]]
// CHECK-YES: declare float @atan2f(float noundef, float noundef) [[NUW]]

  double exp_ = exp(d);
  long double expl_ = expl(ld);
  float expf_ = expf(f);
// CHECK-NO: declare double @llvm.exp.f64(double) [[NUW_RNI]]
// CHECK-NO: declare x86_fp80 @llvm.exp.f80(x86_fp80) [[NUW_RNI]]
// CHECK-NO: declare float @llvm.exp.f32(float) [[NUW_RNI]]
// CHECK-YES: declare double @exp(double noundef) [[NUW]]
// CHECK-YES: declare x86_fp80 @expl(x86_fp80 noundef) [[NUW]]
// CHECK-YES: declare float @expf(float noundef) [[NUW]]

  double log_ = log(d);
  long double logl_ = logl(ld);
  float logf_ = logf(f);
// CHECK-NO: declare double @llvm.log.f64(double) [[NUW_RNI]]
// CHECK-NO: declare x86_fp80 @llvm.log.f80(x86_fp80) [[NUW_RNI]]
// CHECK-NO: declare float @llvm.log.f32(float) [[NUW_RNI]]
// CHECK-YES: declare double @log(double noundef) [[NUW]]
// CHECK-YES: declare x86_fp80 @logl(x86_fp80 noundef) [[NUW]]
// CHECK-YES: declare float @logf(float noundef) [[NUW]]
}

// CHECK-YES: attributes [[NUW]] = { nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+cx8,+x87" }
// CHECK-NO-DAG: attributes [[NUW_RNI]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }