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[Bug middle-end/30568] -ftrapping-math should prevent folding/dead code stripping of some builtins
- From: "joseph at codesourcery dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 24 Jan 2007 02:37:20 -0000
- Subject: [Bug middle-end/30568] -ftrapping-math should prevent folding/dead code stripping of some builtins
- References: <bug-30568-638@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from joseph at codesourcery dot com 2007-01-24 02:37 -------
Subject: Re: New: -ftrapping-math should prevent
folding/dead code stripping of some builtins
On Wed, 24 Jan 2007, geoffk at gcc dot gnu dot org wrote:
> when compiled with -ftrapping-math, should show that some flags are set,
> FE_INVALID I think (maybe others). Instead it shows that no flags are set,
> because GCC has completely folded out the call to acos().
I think this is the same as bug 29186.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30568