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...ng if we want to inline calls to sqrt. A first step would be to figure out where the headers are doing this and whether there's a way to disable it. - Ben > > Thanks, > > Preston > > From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf OfChandler Carruth > Sent: Saturday, May 18, 2013 4:48 PM > To: Nadav Rotem > Cc: LLVMdev (LLVMdev at cs.uiuc.edu) > Subject: Re: [LLVMdev] Inlining sqrt library function in X86 > > On Sat, May 18, 2013 at 5:18 PM, Nadav Rotem <nrotem at apple.com> wrote: > Does fast-math imply...

Thanks for the fix! However, there still seems to be a problem in that if you pass –ffast-math to clang, then clang changes “sqrt” to be “__sqrt_finite”. LLVM cannot then change the function call into an x86 sqrt instruction, even with –fno-math-errno set. Can you suggest where I might look in the clang code to find the place where “sqrt” is converted to “__sqrt_finite” and/or the best way to