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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: "abel at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 20 Jul 2012 09:13:28 +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
Andrey Belevantsev <abel at gcc dot gnu.org> changed:
What |Removed |Added
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AssignedTo|unassigned at gcc dot |abel at gcc dot gnu.org
|gnu.org |
--- Comment #13 from Andrey Belevantsev <abel at gcc dot gnu.org> 2012-07-20 09:13:28 UTC ---
The ia64 backend disallows any movements of instructions that depend on a
speculated insns with always returning false in insn_can_be_in_speculative_p,
and this later fails the ia64_speculate_insn hook. Thus, sel-sched is likely
wrong to move this insn, I will take a look on Monday.