It need command line to enable SIMD auto-vectorization (VLS mode in RVV).
It will enable VLS modes auto-vectorization by default if we didn't add RISCV 
into vect_cmdline.
So adding it to disable VLS mode vectorization which will fix the FAILs like 
other targets.



juzhe.zh...@rivai.ai
 
From: Robin Dapp
Date: 2023-11-07 20:04
To: Juzhe-Zhong; gcc-patches
CC: rdapp.gcc; kito.cheng; kito.cheng; jeffreyalaw
Subject: Re: [PATCH] RISC-V: Add RISC-V into vect_cmdline_needed
Looks OK but I don't really get the test (e.g. gen-vect-26.c).  It is
only ran if target vect_cmdline_needed, otherwise compiled?  Why does
that have an impact on the scan?  Looks weird but well...
 
Regards
Robin
 

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