Yeah, aarch64 already has 178, RVV has much more types than aarch64... You can see intrinsic doc: https://github.com/riscv-non-isa/rvv-intrinsic-doc/blob/eopc/tuple-type-for-seg-load-store/auto-generated/intrinsic_funcs/02_vector_unit-stride_segment_load_store_instructions_zvlsseg.md api number explodes.
As well as tuples types in RVV much more than aarch64. Maybe we need to ask RVV api doc maintainer to reduce types && api of RVV? Not sure. I think kito may help for this. juzhe.zh...@rivai.ai From: Jakub Jelinek Date: 2023-04-10 23:18 To: Jeff Law CC: juzhe.zhong; gcc-patches; kito.cheng; palmer; richard.sandiford; rguenther Subject: Re: [PATCH] machine_mode type size: Extend enum size from 8-bit to 16-bit On Mon, Apr 10, 2023 at 08:54:12AM -0600, Jeff Law wrote: > This is likely going to be very controversial. It's going to increase the > size of two of most heavily used data structures in GCC (rtx and trees). > > The first thing I would ask is whether or not we really need the full matrix > in practice or if we can combine some of the modes. > > Why hasn't aarch64 stumbled over this problem? From what I can see, x86 has 130 modes and aarch64 178 right now. Jakub
