[LLVMdev] llvm builtins (original) (raw)
reed kotler rkotler at mips.com
Thu Feb 5 18:04:06 PST 2015
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In the latest sync from tip of tree this llvm.pow.f32 and f64 works but not any of the other builtins.
shouldn't all these gcc __builtin_xxx be mapping to the corresponding llvm ir function, if available?
otherwise how do you make C code use the desired llvm IR function?
On 02/04/2015 04:23 PM, Reid Kleckner wrote:
Should be fixed in to always use the LLVM builtin in r228240.
On Wed, Feb 4, 2015 at 3:39 PM, reed kotler <rkotler at mips.com_ _<mailto:rkotler at mips.com>> wrote: In the following example with gcc style builtins, in once case llvm.powi.f64 is emitted and in the other just a call to library function powf. ~/llvm/build/Debug+Asserts/bin/clang -S -emit-llvm pow1.c Why is that? Is there a way to force the call to an llvm style builtin? Tia. Reed
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