From: Jeff Law <law@redhat.com>
To: gcc-patches@gcc.gnu.org, richard.sandiford@arm.com
Subject: Re: [5/9] Create sensible dummy registers
Date: Mon, 18 May 2015 21:29:00 -0000 [thread overview]
Message-ID: <555A4E7A.1000608@redhat.com> (raw)
In-Reply-To: <871tidu4oo.fsf@e105548-lin.cambridge.arm.com>
On 05/18/2015 12:21 PM, Richard Sandiford wrote:
> Some pieces of code create a temporary REG or MEM and only fill it
> in later when they're testing the cost of a particular rtx. This patch
> makes sure that even the dummy REG or MEM is valid, rather than force
> the gen_* code to handle garbage values.
>
>
> gcc/
> * caller-save.c (init_caller_save): Use word_mode and
> FIRST_PSEUDO_REGISTER when creating temporary rtxes.
> * expr.c (init_expr_target): Likewise.
> * ira.c (setup_prohibited_mode_move_regs): Likewise.
> * postreload.c (reload_cse_regs_1): Likewise.
OK.
jeff
next prev parent reply other threads:[~2015-05-18 20:41 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-18 18:11 [0/9] Record number of hard registers in a REG Richard Sandiford
2015-05-18 18:13 ` [1/9] Make more use of END_REGNO Richard Sandiford
2015-05-18 19:06 ` Jeff Law
2015-05-18 18:15 ` [2/9] Add a REG_NREGS macro Richard Sandiford
2015-05-18 20:27 ` Jeff Law
2015-05-19 7:00 ` Richard Sandiford
2015-05-18 18:19 ` [3/9] Clean up df_ref_change_reg_with_loc Richard Sandiford
2015-05-18 20:33 ` Jeff Law
2015-05-18 18:22 ` [4/9] Add a dedicated rtx union member for REGs Richard Sandiford
2015-05-18 20:41 ` Jeff Law
2015-05-19 7:04 ` Richard Sandiford
2015-05-19 7:17 ` Jeff Law
2015-05-18 18:23 ` [5/9] Create sensible dummy registers Richard Sandiford
2015-05-18 21:29 ` Jeff Law [this message]
2015-05-19 9:02 ` Eric Botcazou
2015-05-22 15:44 ` Richard Sandiford
2015-05-22 20:05 ` Jeff Law
2015-05-18 18:24 ` [7/9] Record the number of registers in a REG Richard Sandiford
2015-05-18 21:33 ` Jeff Law
2015-05-18 18:24 ` [6/9] Pass REG changes through a new function Richard Sandiford
2015-05-18 21:32 ` Jeff Law
2015-05-18 18:26 ` [8/9] Remove END_HARD_REGNO Richard Sandiford
2015-05-18 21:34 ` Jeff Law
2015-05-18 18:31 ` [9/9] Simplify register bitmap operations Richard Sandiford
2015-05-18 21:39 ` Jeff Law
2015-05-19 15:21 ` breakage with series "[0/9] Record number of hard registers in a REG" Hans-Peter Nilsson
2015-05-19 15:54 ` Richard Sandiford
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