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floating point optimization by function
- From: Simon West <simon dot west at cantab dot net>
- To: gcc-help at gcc dot gnu dot org
- Date: Thu, 5 May 2011 00:49:44 +0100
- Subject: floating point optimization by function
Hello,
Could anyone tell me if there is a GCC equivalent of the pragmas used
to control floating point arithmetic on a function-by-function basis
in Microsoft Visual C++? (the pragmas are described here:
http://msdn.microsoft.com/en-us/library/aa289157%28v=vs.71%29.aspx#floapoint_topic7
)
Specifically, I have a function for which I need to guarantee that no
associative arithmetic optimizations are performed, i.e., I need to force
-fno-associative-math to be used, but only around this particular function.
Thanks for your help,
Simon.