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RE: Linux Number Crunching: Benchmarking Compilers and Languages on ia32
- From: "Scott Robert Ladd" <scott at coyotegulch dot com>
- To: "Benjamin Kosnik" <bkoz at redhat dot com>, <gcc at gcc dot gnu dot org>
- Date: Thu, 2 Jan 2003 12:43:07 -0500
- Subject: RE: Linux Number Crunching: Benchmarking Compilers and Languages on ia32
> It's the last bit, "superior intrinsic implementations of trigonometric
> functions" that strikes me as unlikely. Can you provide more information
> on this, with specific C++ code and generated asm, so that the GNU C++
> developers can see what is going on here, or how you reached these
> conclusions? I know that Gaby and Roger Sayle did some work/patching in
> this area, so if there are still issues I'd like to see them fixed
> soonish.
I based the statement above on experience from a couple of years ago, where
gcc did not emit solid code for intrinsic trigonometric functions.
I'll generate assembly-language output for both compilers, and see what
they're actually producing. That'll have to come later today or tongight, as
my plate overfloweth at the moment...
..Scott