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From: "nickc at redhat dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/64010] [msp430-elf] struct function dereference clobbers parameter passed to function
Date: Tue, 02 Dec 2014 16:34:00 -0000 [thread overview]
Message-ID: <bug-64010-4-53esFfgfJX@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-64010-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64010
--- Comment #3 from Nick Clifton <nickc at redhat dot com> ---
Hi Alex,
This appears to be a reload bug. Before reload we have:
(call_insn 12 (call:HI (mem:HI (mem:HI (plus:HI (reg:HI R14)
(const_int 2))))
(const_int 0))
After reload this becomes:
(insn 17 (set (reg:HI R14)
(mem:HI (plus:HI (reg:HI R14)
(const_int 2)))))
(call_insn 12 (call:HI (mem:HI (reg:HI R14))
(const_int 0)))
The uploaded patch fixes this but, not being a reload expert, I am not sure
if this is the correct way to solve the problem. It also seems suspicious that
if this is a generic reload problem, then why has it not been reported and
fixed before now ?
next prev parent reply other threads:[~2014-12-02 16:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-21 3:08 [Bug rtl-optimization/64010] New: " amykyta3 at gmail dot com
2014-12-02 16:34 ` nickc at redhat dot com [this message]
2014-12-02 17:45 ` [Bug rtl-optimization/64010] " uweigand at gcc dot gnu.org
2014-12-02 17:46 ` uweigand at gcc dot gnu.org
2014-12-03 0:20 ` pab at pabigot dot com
2014-12-03 0:31 ` pab at pabigot dot com
2014-12-03 3:25 ` amykyta3 at gmail dot com
2014-12-03 12:50 ` nickc at redhat dot com
2014-12-03 21:59 ` uweigand at gcc dot gnu.org
2014-12-03 22:07 ` uweigand at gcc dot gnu.org
2014-12-17 15:08 ` uweigand at gcc dot gnu.org
2014-12-17 15:09 ` uweigand at gcc dot gnu.org
2014-12-17 15:09 ` uweigand at gcc dot gnu.org
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