diff --git a/clang/test/CodeGen/libcalls-errno.c b/clang/test/CodeGen/libcalls-errno.c
new file mode 100644
index 0000000000000000000000000000000000000000..64bd83fece946c5ec0ffa124ce3a1afd04bcf4a9
--- /dev/null
+++ b/clang/test/CodeGen/libcalls-errno.c
@@ -0,0 +1,732 @@
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -w -S -o - -emit-llvm              %s | FileCheck %s -check-prefix=NO__ERRNO
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -w -S -o - -emit-llvm -fmath-errno %s | FileCheck %s -check-prefix=HAS_ERRNO
+
+// Test attributes of library calls to see how errno affects the resulting codegen. 
+
+
+double *d;
+float f;
+float *fp;
+long double *l;
+int *i;
+const char *c;
+
+void foo() {
+  atan2(f,f);    atan2f(f,f) ;  atan2l(f, f);
+
+// NO__ERRNO: declare double @atan2(double, double) [[READNONE:#[0-9]+]]
+// NO__ERRNO: declare float @atan2f(float, float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @atan2l(x86_fp80, x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @atan2(double, double) [[NOT_READNONE:#[0-9]+]]
+// HAS_ERRNO: declare float @atan2f(float, float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @atan2l(x86_fp80, x86_fp80) [[NOT_READNONE]]
+
+  copysign(f,f); copysignf(f,f);copysignl(f,f);
+
+// NO__ERRNO: declare double @copysign(double, double) [[READNONE]]
+// NO__ERRNO: declare float @copysignf(float, float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @copysignl(x86_fp80, x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @copysign(double, double) [[READNONE:#[0-9]+]]
+// HAS_ERRNO: declare float @copysignf(float, float) [[READNONE]]
+// HAS_ERRNO: declare x86_fp80 @copysignl(x86_fp80, x86_fp80) [[READNONE]]
+
+  fabs(f);       fabsf(f);      fabsl(f);
+
+// NO__ERRNO: declare double @fabs(double) [[READNONE]]
+// NO__ERRNO: declare float @fabsf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @fabsl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @fabs(double) [[READNONE]]
+// HAS_ERRNO: declare float @fabsf(float) [[READNONE]]
+// HAS_ERRNO: declare x86_fp80 @fabsl(x86_fp80) [[READNONE]]
+
+  fmod(f,f);     fmodf(f,f);    fmodl(f,f);
+
+// NO__ERRNO: declare double @fmod(double, double) [[READNONE]]
+// NO__ERRNO: declare float @fmodf(float, float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @fmodl(x86_fp80, x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @fmod(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @fmodf(float, float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @fmodl(x86_fp80, x86_fp80) [[NOT_READNONE]]
+
+  frexp(f,i);    frexpf(f,i);   frexpl(f,i);
+
+// NO__ERRNO: declare double @frexp(double, i32*) [[NOT_READNONE:#[0-9]+]]
+// NO__ERRNO: declare float @frexpf(float, i32*) [[NOT_READNONE]]
+// NO__ERRNO: declare x86_fp80 @frexpl(x86_fp80, i32*) [[NOT_READNONE]]
+// HAS_ERRNO: declare double @frexp(double, i32*) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @frexpf(float, i32*) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @frexpl(x86_fp80, i32*) [[NOT_READNONE]]
+
+  ldexp(f,f);    ldexpf(f,f);   ldexpl(f,f);  
+
+// NO__ERRNO: declare double @ldexp(double, i32) [[READNONE]]
+// NO__ERRNO: declare float @ldexpf(float, i32) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @ldexpl(x86_fp80, i32) [[READNONE]]
+// HAS_ERRNO: declare double @ldexp(double, i32) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @ldexpf(float, i32) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @ldexpl(x86_fp80, i32) [[NOT_READNONE]]
+
+  modf(f,d);       modff(f,fp);      modfl(f,l); 
+
+// NO__ERRNO: declare double @modf(double, double*) [[NOT_READNONE]]
+// NO__ERRNO: declare float @modff(float, float*) [[NOT_READNONE]]
+// NO__ERRNO: declare x86_fp80 @modfl(x86_fp80, x86_fp80*) [[NOT_READNONE]]
+// HAS_ERRNO: declare double @modf(double, double*) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @modff(float, float*) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @modfl(x86_fp80, x86_fp80*) [[NOT_READNONE]]
+
+  nan(c);        nanf(c);       nanl(c);  
+
+// NO__ERRNO: declare double @nan(i8*) [[READONLY:#[0-9]+]]
+// NO__ERRNO: declare float @nanf(i8*) [[READONLY]]
+// NO__ERRNO: declare x86_fp80 @nanl(i8*) [[READONLY]]
+// HAS_ERRNO: declare double @nan(i8*) [[READONLY:#[0-9]+]]
+// HAS_ERRNO: declare float @nanf(i8*) [[READONLY]]
+// HAS_ERRNO: declare x86_fp80 @nanl(i8*) [[READONLY]]
+
+  pow(f,f);        powf(f,f);       powl(f,f);
+
+// NO__ERRNO: declare double @llvm.pow.f64(double, double) [[READNONE_INTRINSIC:#[0-9]+]]
+// NO__ERRNO: declare float @llvm.pow.f32(float, float) [[READNONE_INTRINSIC]]
+// NO__ERRNO: declare x86_fp80 @llvm.pow.f80(x86_fp80, x86_fp80) [[READNONE_INTRINSIC]]
+// HAS_ERRNO: declare double @pow(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @powf(float, float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @powl(x86_fp80, x86_fp80) [[NOT_READNONE]]
+
+  /* math */
+  acos(f);       acosf(f);      acosl(f);
+
+// NO__ERRNO: declare double @acos(double) [[READNONE]]
+// NO__ERRNO: declare float @acosf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @acosl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @acos(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @acosf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @acosl(x86_fp80) [[NOT_READNONE]]
+
+  acosh(f);      acoshf(f);     acoshl(f);  
+
+// NO__ERRNO: declare double @acosh(double) [[READNONE]]
+// NO__ERRNO: declare float @acoshf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @acoshl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @acosh(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @acoshf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @acoshl(x86_fp80) [[NOT_READNONE]]
+
+  asin(f);       asinf(f);      asinl(f); 
+
+// NO__ERRNO: declare double @asin(double) [[READNONE]]
+// NO__ERRNO: declare float @asinf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @asinl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @asin(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @asinf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @asinl(x86_fp80) [[NOT_READNONE]]
+
+  asinh(f);      asinhf(f);     asinhl(f);
+
+// NO__ERRNO: declare double @asinh(double) [[READNONE]]
+// NO__ERRNO: declare float @asinhf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @asinhl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @asinh(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @asinhf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @asinhl(x86_fp80) [[NOT_READNONE]]
+
+  atan(f);       atanf(f);      atanl(f);
+
+// NO__ERRNO: declare double @atan(double) [[READNONE]]
+// NO__ERRNO: declare float @atanf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @atanl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @atan(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @atanf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @atanl(x86_fp80) [[NOT_READNONE]]
+
+  atanh(f);      atanhf(f);     atanhl(f); 
+
+// NO__ERRNO: declare double @atanh(double) [[READNONE]]
+// NO__ERRNO: declare float @atanhf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @atanhl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @atanh(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @atanhf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @atanhl(x86_fp80) [[NOT_READNONE]]
+
+  cbrt(f);       cbrtf(f);      cbrtl(f);
+
+// NO__ERRNO: declare double @cbrt(double) [[READNONE]]
+// NO__ERRNO: declare float @cbrtf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @cbrtl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @cbrt(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @cbrtf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @cbrtl(x86_fp80) [[NOT_READNONE]]
+
+  ceil(f);       ceilf(f);      ceill(f);
+
+// NO__ERRNO: declare double @ceil(double) [[READNONE]]
+// NO__ERRNO: declare float @ceilf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @ceill(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @ceil(double) [[READNONE]]
+// HAS_ERRNO: declare float @ceilf(float) [[READNONE]]
+// HAS_ERRNO: declare x86_fp80 @ceill(x86_fp80) [[READNONE]]
+
+  cos(f);        cosf(f);       cosl(f); 
+
+// NO__ERRNO: declare double @cos(double) [[READNONE]]
+// NO__ERRNO: declare float @cosf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @cosl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @cos(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @cosf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @cosl(x86_fp80) [[NOT_READNONE]]
+
+  cosh(f);       coshf(f);      coshl(f);
+
+// NO__ERRNO: declare double @cosh(double) [[READNONE]]
+// NO__ERRNO: declare float @coshf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @coshl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @cosh(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @coshf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @coshl(x86_fp80) [[NOT_READNONE]]
+
+  erf(f);        erff(f);       erfl(f);
+
+// NO__ERRNO: declare double @erf(double) [[READNONE]]
+// NO__ERRNO: declare float @erff(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @erfl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @erf(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @erff(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @erfl(x86_fp80) [[NOT_READNONE]]
+
+  erfc(f);       erfcf(f);      erfcl(f);
+
+// NO__ERRNO: declare double @erfc(double) [[READNONE]]
+// NO__ERRNO: declare float @erfcf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @erfcl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @erfc(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @erfcf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @erfcl(x86_fp80) [[NOT_READNONE]]
+
+  exp(f);        expf(f);       expl(f);
+
+// NO__ERRNO: declare double @exp(double) [[READNONE]]
+// NO__ERRNO: declare float @expf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @expl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @exp(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @expf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @expl(x86_fp80) [[NOT_READNONE]]
+
+  exp2(f);       exp2f(f);      exp2l(f); 
+
+// NO__ERRNO: declare double @exp2(double) [[READNONE]]
+// NO__ERRNO: declare float @exp2f(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @exp2l(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @exp2(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @exp2f(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @exp2l(x86_fp80) [[NOT_READNONE]]
+
+  expm1(f);      expm1f(f);     expm1l(f);
+
+// NO__ERRNO: declare double @expm1(double) [[READNONE]]
+// NO__ERRNO: declare float @expm1f(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @expm1l(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @expm1(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @expm1f(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @expm1l(x86_fp80) [[NOT_READNONE]]
+
+  fdim(f,f);       fdimf(f,f);      fdiml(f,f);
+
+// NO__ERRNO: declare double @fdim(double, double) [[READNONE]]
+// NO__ERRNO: declare float @fdimf(float, float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @fdiml(x86_fp80, x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @fdim(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @fdimf(float, float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @fdiml(x86_fp80, x86_fp80) [[NOT_READNONE]]
+
+  floor(f);      floorf(f);     floorl(f);
+
+// NO__ERRNO: declare double @floor(double) [[READNONE]]
+// NO__ERRNO: declare float @floorf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @floorl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @floor(double) [[READNONE]]
+// HAS_ERRNO: declare float @floorf(float) [[READNONE]]
+// HAS_ERRNO: declare x86_fp80 @floorl(x86_fp80) [[READNONE]]
+
+  fma(f,f,f);        fmaf(f,f,f);       fmal(f,f,f);
+
+// NO__ERRNO: declare double @llvm.fma.f64(double, double, double) [[READNONE_INTRINSIC]]
+// NO__ERRNO: declare float @llvm.fma.f32(float, float, float) [[READNONE_INTRINSIC]]
+// NO__ERRNO: declare x86_fp80 @llvm.fma.f80(x86_fp80, x86_fp80, x86_fp80) [[READNONE_INTRINSIC]]
+// HAS_ERRNO: declare double @llvm.fma.f64(double, double, double) [[READNONE_INTRINSIC:#[0-9]+]]
+// HAS_ERRNO: declare float @llvm.fma.f32(float, float, float) [[READNONE_INTRINSIC]]
+// HAS_ERRNO: declare x86_fp80 @llvm.fma.f80(x86_fp80, x86_fp80, x86_fp80) [[READNONE_INTRINSIC]]
+
+  fmax(f,f);       fmaxf(f,f);      fmaxl(f,f);
+
+// NO__ERRNO: declare double @fmax(double, double) [[READNONE]]
+// NO__ERRNO: declare float @fmaxf(float, float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @fmaxl(x86_fp80, x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @fmax(double, double) [[READNONE]]
+// HAS_ERRNO: declare float @fmaxf(float, float) [[READNONE]]
+// HAS_ERRNO: declare x86_fp80 @fmaxl(x86_fp80, x86_fp80) [[READNONE]]
+
+  fmin(f,f);       fminf(f,f);      fminl(f,f);
+
+// NO__ERRNO: declare double @fmin(double, double) [[READNONE]]
+// NO__ERRNO: declare float @fminf(float, float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @fminl(x86_fp80, x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @fmin(double, double) [[READNONE]]
+// HAS_ERRNO: declare float @fminf(float, float) [[READNONE]]
+// HAS_ERRNO: declare x86_fp80 @fminl(x86_fp80, x86_fp80) [[READNONE]]
+
+  hypot(f,f);      hypotf(f,f);     hypotl(f,f);
+
+// NO__ERRNO: declare double @hypot(double, double) [[READNONE]]
+// NO__ERRNO: declare float @hypotf(float, float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @hypotl(x86_fp80, x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @hypot(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @hypotf(float, float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @hypotl(x86_fp80, x86_fp80) [[NOT_READNONE]]
+
+  ilogb(f);      ilogbf(f);     ilogbl(f); 
+
+// NO__ERRNO: declare i32 @ilogb(double) [[READNONE]]
+// NO__ERRNO: declare i32 @ilogbf(float) [[READNONE]]
+// NO__ERRNO: declare i32 @ilogbl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare i32 @ilogb(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare i32 @ilogbf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare i32 @ilogbl(x86_fp80) [[NOT_READNONE]]
+
+  lgamma(f);     lgammaf(f);    lgammal(f);
+
+// NO__ERRNO: declare double @lgamma(double) [[NOT_READNONE]]
+// NO__ERRNO: declare float @lgammaf(float) [[NOT_READNONE]]
+// NO__ERRNO: declare x86_fp80 @lgammal(x86_fp80) [[NOT_READNONE]]
+// HAS_ERRNO: declare double @lgamma(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @lgammaf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @lgammal(x86_fp80) [[NOT_READNONE]]
+
+  llrint(f);     llrintf(f);    llrintl(f);
+
+// NO__ERRNO: declare i64 @llrint(double) [[READNONE]]
+// NO__ERRNO: declare i64 @llrintf(float) [[READNONE]]
+// NO__ERRNO: declare i64 @llrintl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare i64 @llrint(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare i64 @llrintf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare i64 @llrintl(x86_fp80) [[NOT_READNONE]]
+
+  llround(f);    llroundf(f);   llroundl(f);
+
+// NO__ERRNO: declare i64 @llround(double) [[READNONE]]
+// NO__ERRNO: declare i64 @llroundf(float) [[READNONE]]
+// NO__ERRNO: declare i64 @llroundl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare i64 @llround(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare i64 @llroundf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare i64 @llroundl(x86_fp80) [[NOT_READNONE]]
+
+  log(f);        logf(f);       logl(f);
+
+// NO__ERRNO: declare double @log(double) [[READNONE]]
+// NO__ERRNO: declare float @logf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @logl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @log(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @logf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @logl(x86_fp80) [[NOT_READNONE]]
+
+  log10(f);      log10f(f);     log10l(f);
+
+// NO__ERRNO: declare double @log10(double) [[READNONE]]
+// NO__ERRNO: declare float @log10f(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @log10l(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @log10(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @log10f(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @log10l(x86_fp80) [[NOT_READNONE]]
+
+  log1p(f);      log1pf(f);     log1pl(f);
+
+// NO__ERRNO: declare double @log1p(double) [[READNONE]]
+// NO__ERRNO: declare float @log1pf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @log1pl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @log1p(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @log1pf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @log1pl(x86_fp80) [[NOT_READNONE]]
+
+  log2(f);       log2f(f);      log2l(f);
+
+// NO__ERRNO: declare double @log2(double) [[READNONE]]
+// NO__ERRNO: declare float @log2f(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @log2l(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @log2(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @log2f(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @log2l(x86_fp80) [[NOT_READNONE]]
+
+  logb(f);       logbf(f);      logbl(f);
+
+// NO__ERRNO: declare double @logb(double) [[READNONE]]
+// NO__ERRNO: declare float @logbf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @logbl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @logb(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @logbf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @logbl(x86_fp80) [[NOT_READNONE]]
+
+  lrint(f);      lrintf(f);     lrintl(f);
+
+// NO__ERRNO: declare i64 @lrint(double) [[READNONE]]
+// NO__ERRNO: declare i64 @lrintf(float) [[READNONE]]
+// NO__ERRNO: declare i64 @lrintl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare i64 @lrint(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare i64 @lrintf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare i64 @lrintl(x86_fp80) [[NOT_READNONE]]
+
+  lround(f);     lroundf(f);    lroundl(f);
+
+// NO__ERRNO: declare i64 @lround(double) [[READNONE]]
+// NO__ERRNO: declare i64 @lroundf(float) [[READNONE]]
+// NO__ERRNO: declare i64 @lroundl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare i64 @lround(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare i64 @lroundf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare i64 @lroundl(x86_fp80) [[NOT_READNONE]]
+
+  nearbyint(f);  nearbyintf(f); nearbyintl(f);
+
+// NO__ERRNO: declare double @nearbyint(double) [[READNONE]]
+// NO__ERRNO: declare float @nearbyintf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @nearbyintl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @nearbyint(double) [[READNONE]]
+// HAS_ERRNO: declare float @nearbyintf(float) [[READNONE]]
+// HAS_ERRNO: declare x86_fp80 @nearbyintl(x86_fp80) [[READNONE]]
+
+  nextafter(f,f);  nextafterf(f,f); nextafterl(f,f);
+
+// NO__ERRNO: declare double @nextafter(double, double) [[READNONE]]
+// NO__ERRNO: declare float @nextafterf(float, float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @nextafterl(x86_fp80, x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @nextafter(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @nextafterf(float, float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @nextafterl(x86_fp80, x86_fp80) [[NOT_READNONE]]
+
+  nexttoward(f,f); nexttowardf(f,f);nexttowardl(f,f);
+
+// NO__ERRNO: declare double @nexttoward(double, x86_fp80) [[READNONE]]
+// NO__ERRNO: declare float @nexttowardf(float, x86_fp80) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @nexttowardl(x86_fp80, x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @nexttoward(double, x86_fp80) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @nexttowardf(float, x86_fp80) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @nexttowardl(x86_fp80, x86_fp80) [[NOT_READNONE]]
+
+  remainder(f,f);  remainderf(f,f); remainderl(f,f);
+
+// NO__ERRNO: declare double @remainder(double, double) [[READNONE]]
+// NO__ERRNO: declare float @remainderf(float, float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @remainderl(x86_fp80, x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @remainder(double, double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @remainderf(float, float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @remainderl(x86_fp80, x86_fp80) [[NOT_READNONE]]
+
+//
+// FIXME: remquo is not recognized as a mathlib call.
+//
+  // remquo(f,f,i);  remquof(f,f,i); remquol(f,f,i);
+
+  rint(f);       rintf(f);      rintl(f);
+
+// NO__ERRNO: declare double @rint(double) [[READNONE]]
+// NO__ERRNO: declare float @rintf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @rintl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @rint(double) [[READNONE]]
+// HAS_ERRNO: declare float @rintf(float) [[READNONE]]
+// HAS_ERRNO: declare x86_fp80 @rintl(x86_fp80) [[READNONE]]
+
+  round(f);      roundf(f);     roundl(f);
+
+// NO__ERRNO: declare double @round(double) [[READNONE]]
+// NO__ERRNO: declare float @roundf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @roundl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @round(double) [[READNONE]]
+// HAS_ERRNO: declare float @roundf(float) [[READNONE]]
+// HAS_ERRNO: declare x86_fp80 @roundl(x86_fp80) [[READNONE]]
+
+  scalbln(f,f);    scalblnf(f,f);   scalblnl(f,f);
+
+// NO__ERRNO: declare double @scalbln(double, i64) [[READNONE]]
+// NO__ERRNO: declare float @scalblnf(float, i64) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @scalblnl(x86_fp80, i64) [[READNONE]]
+// HAS_ERRNO: declare double @scalbln(double, i64) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @scalblnf(float, i64) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @scalblnl(x86_fp80, i64) [[NOT_READNONE]]
+
+  scalbn(f,f);     scalbnf(f,f);    scalbnl(f,f);
+
+// NO__ERRNO: declare double @scalbn(double, i32) [[READNONE]]
+// NO__ERRNO: declare float @scalbnf(float, i32) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @scalbnl(x86_fp80, i32) [[READNONE]]
+// HAS_ERRNO: declare double @scalbn(double, i32) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @scalbnf(float, i32) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @scalbnl(x86_fp80, i32) [[NOT_READNONE]]
+
+  sin(f);        sinf(f);       sinl(f);
+
+// NO__ERRNO: declare double @sin(double) [[READNONE]]
+// NO__ERRNO: declare float @sinf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @sinl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @sin(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @sinf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @sinl(x86_fp80) [[NOT_READNONE]]
+
+  sinh(f);       sinhf(f);      sinhl(f);
+
+// NO__ERRNO: declare double @sinh(double) [[READNONE]]
+// NO__ERRNO: declare float @sinhf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @sinhl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @sinh(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @sinhf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @sinhl(x86_fp80) [[NOT_READNONE]]
+
+  sqrt(f);       sqrtf(f);      sqrtl(f); 
+
+// NO__ERRNO: declare double @llvm.sqrt.f64(double) [[READNONE_INTRINSIC]]
+// NO__ERRNO: declare float @llvm.sqrt.f32(float) [[READNONE_INTRINSIC]]
+// NO__ERRNO: declare x86_fp80 @llvm.sqrt.f80(x86_fp80) [[READNONE_INTRINSIC]]
+// HAS_ERRNO: declare double @sqrt(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @sqrtf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @sqrtl(x86_fp80) [[NOT_READNONE]]
+
+  tan(f);        tanf(f);       tanl(f);
+
+// NO__ERRNO: declare double @tan(double) [[READNONE]]
+// NO__ERRNO: declare float @tanf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @tanl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @tan(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @tanf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @tanl(x86_fp80) [[NOT_READNONE]]
+
+  tanh(f);       tanhf(f);      tanhl(f);
+
+// NO__ERRNO: declare double @tanh(double) [[READNONE]]
+// NO__ERRNO: declare float @tanhf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @tanhl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @tanh(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @tanhf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @tanhl(x86_fp80) [[NOT_READNONE]]
+
+  tgamma(f);     tgammaf(f);    tgammal(f);
+
+// NO__ERRNO: declare double @tgamma(double) [[READNONE]]
+// NO__ERRNO: declare float @tgammaf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @tgammal(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @tgamma(double) [[NOT_READNONE]]
+// HAS_ERRNO: declare float @tgammaf(float) [[NOT_READNONE]]
+// HAS_ERRNO: declare x86_fp80 @tgammal(x86_fp80) [[NOT_READNONE]]
+
+  trunc(f);      truncf(f);     truncl(f);
+
+// NO__ERRNO: declare double @trunc(double) [[READNONE]]
+// NO__ERRNO: declare float @truncf(float) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @truncl(x86_fp80) [[READNONE]]
+// HAS_ERRNO: declare double @trunc(double) [[READNONE]]
+// HAS_ERRNO: declare float @truncf(float) [[READNONE]]
+// HAS_ERRNO: declare x86_fp80 @truncl(x86_fp80) [[READNONE]]
+
+  /* complex */
+
+  cabs(f);       cabsf(f);      cabsl(f);
+
+// NO__ERRNO: declare double @cabs(double, double) [[READNONE]]
+// NO__ERRNO: declare float @cabsf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @cabsl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare double @cabs(double, double) [[READNONE]]
+// HAS_ERRNO: declare float @cabsf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare x86_fp80 @cabsl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  cacos(f);      cacosf(f);     cacosl(f);
+
+// NO__ERRNO: declare { double, double } @cacos(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @cacosf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @cacosl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @cacos(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @cacosf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @cacosl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  cacosh(f);     cacoshf(f);    cacoshl(f);
+
+// NO__ERRNO: declare { double, double } @cacosh(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @cacoshf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @cacoshl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @cacosh(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @cacoshf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @cacoshl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  carg(f);       cargf(f);      cargl(f);
+
+// NO__ERRNO: declare double @carg(double, double) [[READNONE]]
+// NO__ERRNO: declare float @cargf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare x86_fp80 @cargl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare double @carg(double, double) [[READNONE]]
+// HAS_ERRNO: declare float @cargf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare x86_fp80 @cargl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  casin(f);      casinf(f);     casinl(f);
+
+// NO__ERRNO: declare { double, double } @casin(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @casinf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @casinl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @casin(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @casinf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @casinl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  casinh(f);     casinhf(f);    casinhl(f); 
+
+// NO__ERRNO: declare { double, double } @casinh(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @casinhf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @casinhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @casinh(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @casinhf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @casinhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  catan(f);      catanf(f);     catanl(f); 
+
+// NO__ERRNO: declare { double, double } @catan(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @catanf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @catanl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @catan(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @catanf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @catanl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  catanh(f);     catanhf(f);    catanhl(f);
+
+// NO__ERRNO: declare { double, double } @catanh(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @catanhf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @catanhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @catanh(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @catanhf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @catanhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  ccos(f);       ccosf(f);      ccosl(f);
+
+// NO__ERRNO: declare { double, double } @ccos(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @ccosf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @ccosl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @ccos(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @ccosf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @ccosl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  ccosh(f);      ccoshf(f);     ccoshl(f);
+
+// NO__ERRNO: declare { double, double } @ccosh(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @ccoshf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @ccoshl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @ccosh(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @ccoshf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @ccoshl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  cexp(f);       cexpf(f);      cexpl(f);
+
+// NO__ERRNO: declare { double, double } @cexp(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @cexpf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @cexpl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @cexp(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @cexpf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @cexpl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  cimag(f);      cimagf(f);     cimagl(f);
+
+// NO__ERRNO-NOT: .cimag
+// NO__ERRNO-NOT: @cimag
+// HAS_ERRNO-NOT: .cimag
+// HAS_ERRNO-NOT: @cimag
+
+  conj(f);       conjf(f);      conjl(f);
+
+// NO__ERRNO: declare { double, double } @conj(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @conjf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @conjl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @conj(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @conjf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @conjl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  clog(f);       clogf(f);      clogl(f);
+
+// NO__ERRNO: declare { double, double } @clog(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @clogf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @clogl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @clog(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @clogf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @clogl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  cproj(f);      cprojf(f);     cprojl(f); 
+
+// NO__ERRNO: declare { double, double } @cproj(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @cprojf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @cprojl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @cproj(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @cprojf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @cprojl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  cpow(f,f);       cpowf(f,f);      cpowl(f,f);
+
+// NO__ERRNO: declare { double, double } @cpow(double, double, double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @cpowf(<2 x float>, <2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @cpowl({ x86_fp80, x86_fp80 }* byval align 16, { x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @cpow(double, double, double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @cpowf(<2 x float>, <2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @cpowl({ x86_fp80, x86_fp80 }* byval align 16, { x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  creal(f);      crealf(f);     creall(f);
+
+// NO__ERRNO-NOT: .creal
+// NO__ERRNO-NOT: @creal
+// HAS_ERRNO-NOT: .creal
+// HAS_ERRNO-NOT: @creal
+
+  csin(f);       csinf(f);      csinl(f);
+
+// NO__ERRNO: declare { double, double } @csin(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @csinf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @csinl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @csin(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @csinf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @csinl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  csinh(f);      csinhf(f);     csinhl(f);
+
+// NO__ERRNO: declare { double, double } @csinh(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @csinhf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @csinhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @csinh(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @csinhf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @csinhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  csqrt(f);      csqrtf(f);     csqrtl(f);  
+
+// NO__ERRNO: declare { double, double } @csqrt(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @csqrtf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @csqrtl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @csqrt(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @csqrtf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @csqrtl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  ctan(f);       ctanf(f);      ctanl(f);
+
+// NO__ERRNO: declare { double, double } @ctan(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @ctanf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @ctanl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @ctan(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @ctanf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @ctanl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+
+  ctanh(f);      ctanhf(f);     ctanhl(f); 
+
+// NO__ERRNO: declare { double, double } @ctanh(double, double) [[READNONE]]
+// NO__ERRNO: declare <2 x float> @ctanhf(<2 x float>) [[READNONE]]
+// NO__ERRNO: declare { x86_fp80, x86_fp80 } @ctanhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+// HAS_ERRNO: declare { double, double } @ctanh(double, double) [[READNONE]]
+// HAS_ERRNO: declare <2 x float> @ctanhf(<2 x float>) [[READNONE]]
+// HAS_ERRNO: declare { x86_fp80, x86_fp80 } @ctanhl({ x86_fp80, x86_fp80 }* byval align 16) [[NOT_READNONE]]
+};
+
+
+// NO__ERRNO: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }
+// NO__ERRNO: attributes [[NOT_READNONE]] = { nounwind "correctly{{.*}} }
+// NO__ERRNO: attributes [[READONLY]] = { {{.*}}readonly{{.*}} }
+// NO__ERRNO: attributes [[READNONE_INTRINSIC]] = { {{.*}}readnone{{.*}} }
+
+// HAS_ERRNO: attributes [[NOT_READNONE]] = { nounwind "correctly{{.*}} }
+// HAS_ERRNO: attributes [[READNONE]] = { {{.*}}readnone{{.*}} }
+// HAS_ERRNO: attributes [[READONLY]] = { {{.*}}readonly{{.*}} }
+// HAS_ERRNO: attributes [[READNONE_INTRINSIC]] = { {{.*}}readnone{{.*}} }
+