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[Bug rtl-optimization/33642] unrecognizable insn for -frtl-abstract-sequences
- From: "janis at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 3 Apr 2008 17:04:41 -0000
- Subject: [Bug rtl-optimization/33642] unrecognizable insn for -frtl-abstract-sequences
- References: <bug-33642-4503@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #21 from janis at gcc dot gnu dot org 2008-04-03 17:04 -------
Dominique, in answer to your question in comment #19, without the patch any
code for powerpc*-linux gets an ICE as reported originally. The very long
compilation times are a concern, but wrong code in four CPU2000 tests is much
worse. With the patch, tests vpr and crafty pass with "-m32 -Os
-frtl-abstract-sequences", but with "-m64 -Os -frtl-abstract-sequences test gcc
fails at runtime and test gap hangs at runtime.
I'm providing this information to let the developers know that the patch isn't
ready. I can test later versions. I don't have time, however, to minimize
runtime failures in SPEC tests to help pinpoint the problems.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33642