Re: [PATCH] RISC-V: Add vectorized strcmp.

[Robin Dapp <rdapp.gcc@gmail.com>]

> FYI. I have the some failures as juzhe mentioned, with the emulator
> qemu version qemu-riscv64 version 8.1.93 (v8.2.0-rc3). The entire log
> may look like below:
> 
> Executing on host: /home/box/panli/riscv-gnu-toolchain/build-gcc-newlib-stage2/gcc/xgcc -B/home/box/panli/riscv-gnu-toolchain/build-gcc-newlib-stage2/gcc/  /home/box/panli/riscv-gnu-toolchain/gcc/gcc/testsuite/gcc.target/riscv/rvv/autovec/builtin/strcmp-run.c  -march=rv64gcv -mabi=lp64d -mcmodel=medlow --param=riscv-autovec-lmul=m1 --param=riscv-autovec-preference=fixed-vlmax   -fdiagnostics-plain-output   -ftree-vectorize -O3 --param riscv-autovec-lmul=m1 -O3 -minline-strcmp       -lm  -o ./strcmp-run.exe    (timeout = 600)
> 
> spawn -ignore SIGHUP /home/box/panli/riscv-gnu-toolchain/build-gcc-newlib-stage2/gcc/xgcc -B/home/box/panli/riscv-gnu-toolchain/build-gcc-newlib-stage2/gcc/ /home/box/panli/riscv-gnu-toolchain/gcc/gcc/testsuite/gcc.target/riscv/rvv/autovec/builtin/strcmp-run.c -march=rv64gcv -mabi=lp64d -mcmodel=medlow --param=riscv-autovec-lmul=m1 --param=riscv-autovec-preference=fixed-vlmax -fdiagnostics-plain-output -ftree-vectorize -O3 --param riscv-autovec-lmul=m1 -O3 -minline-strcmp -lm -o ./strcmp-run.exe^M

Thanks, it must be a bug if you both see it.  But I cannot reproduce
it yet for some reason.  I tried your exact parameters (just didn't
use newlib).  Also, for Juzhe it seemed to fail without
-minline-strcmp for you it fails with it.  Maybe my testcase uses
undefined behavior?  Could you try reducing SZ to 1 for a test?

Regards
 Robin