test/FrontendC/2005-07-20-SqrtNoErrno.c

   1 // RUN: %llvmgcc %s -S -o - -fno-math-errno | FileCheck %s
   2 // llvm.sqrt has undefined behavior on negative inputs, so it is
   3 // inappropriate to translate C/C++ sqrt to this.
   4 #include <math.h>
   5
   6 float foo(float X) {
   7 // CHECK: foo
   8 // CHECK: sqrtf(float %1) nounwind readonly
   9   // Check that this is marked readonly when errno is ignored.
  10   return sqrtf(X);
  11 }