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From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug debug/44023] -fcompare-debug failure (length) for alphaev67 target
Date: Fri, 07 May 2010 17:05:00 -0000	[thread overview]
Message-ID: <20100507170453.13505.qmail@sourceware.org> (raw)
In-Reply-To: <bug-44023-1649@http.gcc.gnu.org/bugzilla/>



------- Comment #5 from ubizjak at gmail dot com  2010-05-07 17:04 -------
For some reason, IRA chooses different reload registers.

--- t1.c.190r.ira       2010-05-07 18:57:36.000000000 +0200
+++ t1.c.gk.190r.ira    2010-05-07 18:57:36.000000000 +0200

These are differences in chosen reload registers:

-Reloads for insn # 583
+Reloads for insn # 697
 Reload 0: reload_out (DI) = (reg:DI 789)
        GENERAL_REGS, RELOAD_FOR_OUTPUT (opnum = 0)
        reload_out_reg: (reg:DI 789)
-       reload_reg_rtx: (reg:DI 28 $28)
+       reload_reg_rtx: (reg:DI 0 $0)
 Reload 1: reload_in (DI) = (reg/v/f:DI 81 [ endp ])
        GENERAL_REGS, RELOAD_FOR_INPUT (opnum = 2)
        reload_in_reg: (reg/v/f:DI 81 [ endp ])
-       reload_reg_rtx: (reg:DI 28 $28)
+       reload_reg_rtx: (reg:DI 0 $0)

[...]

-Reloads for insn # 475
+Reloads for insn # 556
 Reload 0: reload_in (SI) = (const_int -1894007588 [0xffffffff8f1bbcdc])
        GENERAL_REGS, RELOAD_FOR_INPUT (opnum = 2), can't combine
        reload_in_reg: (reg:SI 795)
-       reload_reg_rtx: (reg:SI 28 $28)
+       reload_reg_rtx: (reg:SI 24 $24)

[...]

-Reloads for insn # 514
+Reloads for insn # 598
 Reload 0: reload_in (SI) = (reg:SI 725)
        GENERAL_REGS, RELOAD_FOR_INPUT (opnum = 1)
        reload_in_reg: (reg:SI 725)
-       reload_reg_rtx: (reg:SI 8 $8)
+       reload_reg_rtx: (reg:SI 27 $27)

[...]

-Reloads for insn # 584
+Reloads for insn # 698
 Reload 0: reload_in (DI) = (reg:DI 789)
        GENERAL_REGS, RELOAD_FOR_INPUT (opnum = 2)
        reload_in_reg: (reg:DI 789)
-       reload_reg_rtx: (reg:DI 12 $12)
+       reload_reg_rtx: (reg:DI 1 $1)

-Reloads for insn # 586
+Reloads for insn # 700
 Reload 0: reload_in (DI) = (reg/v/f:DI 287 [ ctx ])
        GENERAL_REGS, RELOAD_FOR_OPERAND_ADDRESS (opnum = 0)
        reload_in_reg: (reg/v/f:DI 287 [ ctx ])
-       reload_reg_rtx: (reg:DI 13 $13)
+       reload_reg_rtx: (reg:DI 2 $2)
 Reload 1: reload_out (SI) = (mem/s:SI (reg/v/f:DI 287 [ ctx ]) [4
ctx_13(D)->A+0 S4 A32])
        NO_REGS, RELOAD_FOR_OUTPUT (opnum = 0), optional
        reload_out_reg: (mem/s:SI (reg/v/f:DI 287 [ ctx ]) [4 ctx_13(D)->A+0 S4
A32])


-- 

ubizjak at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ubizjak at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44023


  parent reply	other threads:[~2010-05-07 17:05 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-07 12:37 [Bug debug/44023] New: " ubizjak at gmail dot com
2010-05-07 12:39 ` [Bug debug/44023] " ubizjak at gmail dot com
2010-05-07 15:40 ` jakub at gcc dot gnu dot org
2010-05-07 15:47 ` ubizjak at gmail dot com
2010-05-07 16:32 ` ubizjak at gmail dot com
2010-05-07 17:05 ` ubizjak at gmail dot com [this message]
2010-05-07 17:13 ` ubizjak at gmail dot com
2010-05-07 20:26 ` jakub at gcc dot gnu dot org
2010-05-08  9:20 ` [Bug debug/44023] [4.6 Regression] -fcompare-debug failure (length) for alphaev67 target (bootstrap failure) ubizjak at gmail dot com
2010-05-10 10:13 ` jakub at gcc dot gnu dot org
2010-05-10 13:59 ` ubizjak at gmail dot com
2010-05-10 17:16 ` ubizjak at gmail dot com
2010-05-11  6:48 ` jakub at gcc dot gnu dot org
2010-05-11  7:11 ` jakub at gcc dot gnu dot org

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