> -----Original Message----- > From: Richard Earnshaw > Sent: Wednesday, January 15, 2014 5:54 PM > To: Terry Guo > Cc: gcc-patches@gcc.gnu.org > Subject: Re: [GCC, ARM] Backport trunk fix to 4.8 branch to properly handle > rtx of ARM PLD instruction > > On 15/01/14 09:23, Terry Guo wrote: > > Hi there, > > > > With trunk enhancement at > > http://gcc.gnu.org/ml/gcc-patches/2013-11/msg00533.html, gcc can > > properly handle PLD rtx. Otherwise the PLD rtx will be treated as SET > > rtx and gcc will end up with ICE. The attached patch intends to back > > port this enhancement to 4.8 branch. Tested with gcc regression test, > > no new regressions. Is it ok to back port? > > > > BR, > > Terry > > > > 2014-01-15 Terry Guo <terry....@arm.com> > > > > Backported from mainline r204575 and applied to file arm.c. > > 2013-11-08 James Greenhalgh <james.greenha...@arm.com> > > > > * config/arm/aarch-common.c > > (search_term): New typedef. > > (shift_rtx_costs): New array. > > (arm_rtx_shift_left_p): New. > > (arm_find_sub_rtx_with_search_term): Likewise. > > (arm_find_sub_rtx_with_code): Likewise. > > (arm_early_load_addr_dep): Add sanity checking. > > (arm_no_early_alu_shift_dep): Likewise. > > (arm_no_early_alu_shift_value_dep): Likewise. > > (arm_no_early_mul_dep): Likewise. > > (arm_no_early_store_addr_dep): Likewise. > > > > Is there a PR for this? >
No. It is firstly found on arm/embedded-4_8-branch and then found on upstream 4.8 branch. The trunk hasn't such issue. Do I need to report a PR against 4.8? If so, I am willing to do it along with the test case. BR, Terry
