[LLVMbugs] [Bug 2053] Inefficient code generated checking 32-bit multiply for signed overflow on x86

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Sun Feb 17 11:46:28 PST 2008


Chris Lattner <sabre at nondot.org> changed:

           What    |Removed                     |Added
             Status|NEW                         |RESOLVED
         Resolution|                            |LATER

--- Comment #1 from Chris Lattner <sabre at nondot.org>  2008-02-17 13:46:28 ---
I moved this to the X86 readme file:

which is where we generally track non-trivial target-specific
micro-optimizations.  We also have lib/Target/README.txt for target-indep
microoptimizations which can be useful as well.

It's never clear what optimizations should go in a readme vs what should go in
bugzilla, but a general rule of thumb is that things should go in bugzilla if
they block other bigger optimization issues (where bugzillas dependency
tracking stuff can be useful) or when they themselves are a big deal for one
reason or another.

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