> -Original Message-
> From: Richard Earnshaw
> Sent: Tuesday, March 26, 2013 6:57 PM
> To: Bin Cheng
> Cc: gcc-patches@gcc.gnu.org
> Subject: Re: [PATCH GCC/ARM]Fix rtx cost for Thumb1
>
> On 26/03/13 08:34, Bin Cheng wrote:
> > Hi,
> > As repor
On 26/03/13 08:34, Bin Cheng wrote:
Hi,
As reported in PR56102, arm back end returns wrong rtx cost for pattern
SET/ASHIFT/ASHIFTRT/LSHIFTRT/ROTATERT with multi-word mode. This
causes GCC skipping the split process in lower-subreg.c, and generating
bigger constant pool.
This patch fixes the issu
Hi,
As reported in PR56102, arm back end returns wrong rtx cost for pattern
SET/ASHIFT/ASHIFTRT/LSHIFTRT/ROTATERT with multi-word mode. This
causes GCC skipping the split process in lower-subreg.c, and generating
bigger constant pool.
This patch fixes the issue. Tested on arm-none-eabi/thumb1/O2/
