subject:"\[mips\] Rotate stack checking loop"

RE: [mips] Rotate stack checking loop

2015-12-02 Thread Moore, Catherine

> -Original Message- > From: gcc-patches-ow...@gcc.gnu.org [mailto:gcc-patches- > ow...@gcc.gnu.org] On Behalf Of Eric Botcazou > Sent: Thursday, November 12, 2015 4:51 PM > To: gcc-patches@gcc.gnu.org > Subject: [mips] Rotate stack checking loop > > Hi, > &g

[mips] Rotate stack checking loop

2015-11-12 Thread Eric Botcazou

Hi, this patch rotates the loop generated in the prologue to do stack checking when -fstack-check is specified, thereby saving one branch instruction. It was initially implemented as a WHILE loop to match the generic implementation but can be turned into a DO-WHILE loop because the amount of s