[gcc r15-6445] LoongArch: Support immediate_operand for vec_cmp

https://gcc.gnu.org/g:4731ead79fac259258dbb027090f3d085f518040 commit r15-6445-g4731ead79fac259258dbb027090f3d085f518040 Author: Jiahao Xu Date: Wed Dec 18 15:45:17 2024 +0800 LoongArch: Support immediate_operand for vec_cmp We can't vectorize the code into instructions like vslti

[gcc r15-6443] Fix timevar.cc build on systems that don't have CLOCK_MONOTONIC

https://gcc.gnu.org/g:06867d9fa69ca6d4ded4602e6601c7153599cbff commit r15-6443-g06867d9fa69ca6d4ded4602e6601c7153599cbff Author: John David Anglin Date: Thu Dec 26 11:27:36 2024 -0500 Fix timevar.cc build on systems that don't have CLOCK_MONOTONIC 2024-12-26 John David Anglin

[gcc r15-6442] doc: Move Modula 2 PM4 link to https

https://gcc.gnu.org/g:d061c681814917c2208f383bd6069e6ab90db220 commit r15-6442-gd061c681814917c2208f383bd6069e6ab90db220 Author: Gerald Pfeifer Date: Thu Dec 26 18:26:41 2024 +0800 doc: Move Modula 2 PM4 link to https gcc: * doc/gm2.texi (Dialect): Move PM4 link to htt