diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2024-10-05 22:09:54 +0000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2024-10-08 06:40:13 -0700 |
| commit | 4cabcb89b101942346aebff081aa1453e958fe7f (patch) | |
| tree | 1fb56d0b0d2002cc25b8adc09196782a4a89e182 | |
| parent | 124e769083c35dd3f0b4840e1726c671677092b3 (diff) | |
tcg/ppc: Use TCG_REG_TMP2 for scratch tcg_out_qemu_st
In the fallback when STDBRX is not available, avoid clobbering
TCG_REG_TMP1, which might be h.base, which is still in use.
Use TCG_REG_TMP2 instead.
Cc: qemu-stable@nongnu.org
Fixes: 01a112e2e9 ("tcg/ppc: Reorg tcg_out_tlb_read")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-By: Michael Tokarev <mjt@tls.msk.ru>
| -rw-r--r-- | tcg/ppc/tcg-target.c.inc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc index 3f413ce3c1..6be5049d02 100644 --- a/tcg/ppc/tcg-target.c.inc +++ b/tcg/ppc/tcg-target.c.inc @@ -2704,9 +2704,9 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg datalo, TCGReg datahi, uint32_t insn = qemu_stx_opc[opc & (MO_BSWAP | MO_SIZE)]; if (!have_isa_2_06 && insn == STDBRX) { tcg_out32(s, STWBRX | SAB(datalo, h.base, h.index)); - tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, h.index, 4)); + tcg_out32(s, ADDI | TAI(TCG_REG_TMP2, h.index, 4)); tcg_out_shri64(s, TCG_REG_R0, datalo, 32); - tcg_out32(s, STWBRX | SAB(TCG_REG_R0, h.base, TCG_REG_TMP1)); + tcg_out32(s, STWBRX | SAB(TCG_REG_R0, h.base, TCG_REG_TMP2)); } else { tcg_out32(s, insn | SAB(datalo, h.base, h.index)); } |