Re: [PATCH v4, rs6000] Enable have_cbranchcc4 on rs6000

Hi Haochen, on 2022/12/8 11:08, HAO CHEN GUI wrote: > Hi, > This patch enables "have_cbranchcc4" on rs6000 by defining > a "cbranchcc4" expander. "have_cbrnachcc4" is a flag in ifcvt.cc > to indicate if branch by CC bits is invalid or not. With this > flag enabled, some branches can be optimized

[PATCH v4, rs6000] Enable have_cbranchcc4 on rs6000

Hi, This patch enables "have_cbranchcc4" on rs6000 by defining a "cbranchcc4" expander. "have_cbrnachcc4" is a flag in ifcvt.cc to indicate if branch by CC bits is invalid or not. With this flag enabled, some branches can be optimized to conditional moves. Compared to last version, the main ch