Sorry for inconvenient, file one PATCH for this as below.
https://gcc.gnu.org/pipermail/gcc-patches/2023-June/621980.html
Pan
-----Original Message-----
From: Andreas Schwab <sch...@linux-m68k.org>
Sent: Friday, June 16, 2023 6:55 PM
To: juzhe.zh...@rivai.ai
Cc: gcc-patches@gcc.gnu.org; kito.ch...@gmail.com; kito.ch...@sifive.com;
pal...@dabbelt.com; pal...@rivosinc.com; jeffreya...@gmail.com;
rdapp....@gmail.com; Li, Pan2 <pan2...@intel.com>
Subject: Re: [PATCH V2] RISC-V: Rework Phase 5 && Phase 6 of VSETVL PASS
Why didn't you test that??
../../gcc/config/riscv/riscv-vsetvl.cc: In member function 'bool
pass_vsetvl::global_eliminate_vsetvl_insn(const rtl_ssa::bb_info*) const':
../../gcc/config/riscv/riscv-vsetvl.cc:4354:3: error: 'vsetvl_rinsn' may be
used uninitialized [-Werror=maybe-uninitialized]
4354 | if (!vsetvl_rinsn)
| ^~
../../gcc/config/riscv/riscv-vsetvl.cc:4343:13: note: 'vsetvl_rinsn' was
declared here
4343 | rtx_insn *vsetvl_rinsn;
| ^~~~~~~~~~~~
cc1plus: all warnings being treated as errors
make[3]: *** [../../gcc/config/riscv/t-riscv:66: riscv-vsetvl.o] Error 1
--
Andreas Schwab, sch...@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
