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[Bug target/53975] [ia64] Target register of a speculative load moved to a branch register prior to the chk.s instruction
- From: "steven at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 15 Jul 2012 22:52:31 +0000
- Subject: [Bug target/53975] [ia64] Target register of a speculative load moved to a branch register prior to the chk.s instruction
- Auto-submitted: auto-generated
- References: <bug-53975-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53975
--- Comment #4 from Steven Bosscher <steven at gcc dot gnu.org> 2012-07-15 22:52:31 UTC ---
Ah, of course the "move branch register" instruction faults if the NaT bit of
the source register is set. So the recovery code is irrelevant, and this could
be a GCC bug. Need a test case to investigate, though...