Re: [PATCH] rs6000: Refine RTL unroll adjust hook

2020-07-07 Thread Jiufu Guo via Gcc-patches
Segher Boessenkool writes: Thanks all! > Hi! > > On Mon, Jul 06, 2020 at 03:13:13PM +0800, guojiufu wrote: >> For very small loops (< 6 insns), it would be fine to unroll 4 >> times to use cache line better. Like below loops: >> `while (i) a[--i] = NULL; while (p < e) *d++ = *p++;` > > Yes,

Re: [PATCH] libbacktrace: configure check linker support for DWARF-5

2020-07-07 Thread Ian Lance Taylor via Gcc-patches
On Tue, Jul 7, 2020 at 6:59 AM CHIGOT, CLEMENT wrote: > > Description: > On AIX, the compiler is able to handle DWARF-5 but not the linker. > > Changelog: > 2020-07-07 Clement Chigot > * configure.ac: Extend check to the linker for DWARF-5 support > * configure: Regenerate > > Please apply fo

Re: [PATCH] c++: ICE in is_really_empty_class [PR95497]

2020-07-07 Thread Jason Merrill via Gcc-patches
On 7/7/20 3:36 PM, Patrick Palka wrote: On Tue, 7 Jul 2020, Jason Merrill wrote: On 7/7/20 9:33 AM, Patrick Palka wrote: We are ICEing in the testcase below because we pass the yet-uninstantiated class type A of the PARM_DECL b to is_really_empty_class from potential_rvalue_constant_expression

Re: [PATCH] c++: Better diagnostic for decltype(auto) in C++11 [PR96103]

2020-07-07 Thread Jason Merrill via Gcc-patches
On 7/7/20 6:40 PM, Marek Polacek wrote: + "% type specifier is a C++14 extension"); The usual phrasing is "...only available with %<-std=c++14%> or %<-std=gnu++14%>". OK with that change. Jason

Re: [PATCH 5/7 v6] vect: Support vector load/store with length in vectorizer

2020-07-07 Thread Kewen.Lin via Gcc-patches
Hi Richard, on 2020/7/7 下午6:44, Richard Sandiford wrote: > "Kewen.Lin" writes: >> on 2020/7/2 下午1:20, Kewen.Lin via Gcc-patches wrote: >>> on 2020/7/1 下午11:17, Richard Sandiford wrote: "Kewen.Lin" writes: > on 2020/7/1 上午3:53, Richard Sandiford wrote: >> "Kewen.Lin" writes: >>>

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