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authorRichard Henderson <richard.henderson@linaro.org>2024-10-05 22:09:54 +0000
committerRichard Henderson <richard.henderson@linaro.org>2024-10-08 06:40:31 -0700
commit3213da7b9539581c6df95f8ced5b09d0b02d425f (patch)
tree08c836257dc2be2c7be79659198a07c79461f406 /tcg/ppc
parent4cabcb89b101942346aebff081aa1453e958fe7f (diff)
tcg/ppc: Use TCG_REG_TMP2 for scratch index in prepare_host_addr
In tcg_out_qemu_ldst_i128, we need a non-zero index register, which we then use as a base register in several address modes. Since we always have TCG_REG_TMP2 available, use that. Cc: qemu-stable@nongnu.org Fixes: 526cd4ec01f ("tcg/ppc: Support 128-bit load/store") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2597 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Tested-By: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'tcg/ppc')
-rw-r--r--tcg/ppc/tcg-target.c.inc4
1 files changed, 2 insertions, 2 deletions
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index 6be5049d02..223f079524 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -2617,8 +2617,8 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h,
if (TCG_TARGET_REG_BITS == 64 && addr_type == TCG_TYPE_I32) {
/* Zero-extend the guest address for use in the host address. */
- tcg_out_ext32u(s, TCG_REG_R0, addrlo);
- h->index = TCG_REG_R0;
+ tcg_out_ext32u(s, TCG_REG_TMP2, addrlo);
+ h->index = TCG_REG_TMP2;
} else {
h->index = addrlo;
}