Re: [Patch/ARM] Cortex-M4 core pipeline patch to tune LDR/STR pairs

2013-04-16 Thread Richard Earnshaw
On 29/03/13 09:59, Terry Guo wrote: Hello, The attached pipeline patch intends to turn following code generation ldr r5, [r4, #12] adds r2, r2, #16 str r5, [r3, #8] to ldr r5, [r4, #12] str r5, [r3, #8] adds r2, r2, #16 The reason is that the STR can be started from the second cycle of its p

RE: [Patch/ARM] Cortex-M4 core pipeline patch to tune LDR/STR pairs

2013-04-15 Thread Terry Guo
Hello Ramana, Can you please review my patch at http://gcc.gnu.org/ml/gcc-patches/2013-03/msg01252.html. Thanks. Terry > -Original Message- > From: gcc-patches-ow...@gcc.gnu.org [mailto:gcc-patches- > ow...@gcc.gnu.org] On Behalf Of Terry Guo > Sent: Friday, March 29, 2013 6:00 PM > To: