Chiebot-Mirror/FFmpeg - FFmpeg - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Rémi Denis-Courmont	4fe8f2cc43	riscv: allow passing addend to vtype_vli macro A constant (-1) is added to the length value, so we can have an added for free, and optimise the addition away if the addend is exactly 1.	7 months ago
Rémi Denis-Courmont	ee1526c05f	lavu/riscv: add assembler macros for adjusting vector LMUL vtype_vli computes the VTYPE value with the optimal LMUL for a given element width, tail and mask policies and a run-time vector length. vtype_ivli does the same, but with the compile-time constant vector length. vwtypei and vntypei can be used to widen or narrow a VTYPE value for use in mixed-width vector-optimised functions.	8 months ago
Rémi Denis-Courmont	5afe734b6d	lavu/riscv: remove bespoke assembler for MIN This is no longer necessary as Zbb is now always explicitly required.	8 months ago
Rémi Denis-Courmont	89029baebd	lavu/riscv: allow requesting a second extension	8 months ago
Rémi Denis-Courmont	cd6089dc9c	riscv: fix builds without Zbb support	1 year ago
Rémi Denis-Courmont	f59a767ccd	lavu/riscv: helper macro for VTYPE encoding On most cases, the vector type (VTYPE) for the RISC-V Vector extension is supplied as an immediate value, with either of the VSETVLI or VSETIVLI instructions. There is however a third instruction VSETVL which takes the vector type from a general purpose register. That is so the type can be selected at run-time. This introduces a macro to load a (valid) vector type into a register. The syntax follows that of VSETVLI and VSETIVLI, with element size, group multiplier, then tail and mask policies.	2 years ago
Rémi Denis-Courmont	3ba5579e55	riscv: remove unnecessary #include's Pointed out by Andreas Rheinhardt.	2 years ago
Rémi Denis-Courmont	39357cad37	lavu/riscv: fallback macros for SH{1, 2, 3}ADD Those mnemonics require the very latest binutils release at the time of writing. These macros provide seamless backward compatibility.	2 years ago
Rémi Denis-Courmont	746f1ff36a	lavu/riscv: initial common header for assembler macros	2 years ago