[Bug middle-end/48580] missed optimization: integer overflow checks

[svfuerst at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48580

Steven Fuerst <svfuerst at gmail dot com> changed:

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--- Comment #10 from Steven Fuerst <svfuerst at gmail dot com> 2011-04-13 17:44:22 UTC ---
There are C and x86 assembly code fragments showing how to do signed and
unsigned saturating arithmetic here:
http://locklessinc.com/articles/sat_arithmetic/

Although, if there were new intrinsics that allowed direct access to the
overflow and carry flags from arithmetic instructions, they would be quite
useful.