Committed, but squashed changes to "RISC-V: Support poly move manipulation and selftests." instead of a standalone commit.
On Sat, Sep 17, 2022 at 9:00 AM <juzhe.zh...@rivai.ai> wrote: > > From: Ju-Zhe Zhong <juzhe.zh...@rivai.ai> > > This patch is a fix patch for: > https://gcc.gnu.org/pipermail/gcc-patches/2022-September/601643.html > > Suppress the warning as follows: > > ../../../riscv-gcc/gcc/poly-int.h: In function > ‘poly_int64 eval_value(rtx, std::map<unsigned int, rtx_def*>&)’: > ../../../riscv-gcc/gcc/poly-int.h:845:48: warning: > ‘*((void*)& op2_val +8)’ may be used uninitialized > in this function [-Wmaybe-uninitialized] > POLY_SET_COEFF (C, r, i, NCa (a.coeffs[i]) + b.coeffs[i]); > ^ > ../../../riscv-gcc/gcc/config/riscv/riscv-selftests.cc:74:23: > note: ‘*((void*)& op2_val +8)’ was declared here > poly_int64 op1_val, op2_val; > > gcc/ChangeLog: > > * config/riscv/riscv-selftests.cc (eval_value): Add initial value. > > --- > gcc/config/riscv/riscv-selftests.cc | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/gcc/config/riscv/riscv-selftests.cc > b/gcc/config/riscv/riscv-selftests.cc > index 167cd47c880..490b6ed6b8e 100644 > --- a/gcc/config/riscv/riscv-selftests.cc > +++ b/gcc/config/riscv/riscv-selftests.cc > @@ -71,7 +71,8 @@ eval_value (rtx x, std::map<unsigned, rtx> ®no_to_rtx) > unsigned regno = REGNO (x); > expr = regno_to_rtx[regno]; > > - poly_int64 op1_val, op2_val; > + poly_int64 op1_val = 0; > + poly_int64 op2_val = 0; > if (UNARY_P (expr)) > { > op1_val = eval_value (XEXP (expr, 0), regno_to_rtx); > -- > 2.36.1 >