Re: [PATCH] RISC-V: improve codegen for large constants with same 32-bit lo and hi parts [2]

On 5/19/23 09:36, Palmer Dabbelt wrote: Works for me.  Did you start that performance backports branch?  Either way, I think this should go on it. Please note that there is a bit of dependency chain. Assuming the aforementioned branch is gcc 13.1 based, this change also needs my splitter

Re: [PATCH] RISC-V: improve codegen for large constants with same 32-bit lo and hi parts [2]

On Fri, 19 May 2023 09:33:34 PDT (-0700), jeffreya...@gmail.com wrote: On 5/18/23 14:57, Vineet Gupta wrote: [part #2 of PR/109279] SPEC2017 deepsjeng uses large constants which currently generates less than ideal code. This fix improves codegen for large constants which have same low and hi

Re: [PATCH] RISC-V: improve codegen for large constants with same 32-bit lo and hi parts [2]

On 5/18/23 14:57, Vineet Gupta wrote: [part #2 of PR/109279] SPEC2017 deepsjeng uses large constants which currently generates less than ideal code. This fix improves codegen for large constants which have same low and hi parts: e.g. long long f(void) { return 0x0101010101010101ull;

[PATCH] RISC-V: improve codegen for large constants with same 32-bit lo and hi parts [2]

[part #2 of PR/109279] SPEC2017 deepsjeng uses large constants which currently generates less than ideal code. This fix improves codegen for large constants which have same low and hi parts: e.g. long long f(void) { return 0x0101010101010101ull; } Before li a5,0x101