diff mbox series

[v4,07/16] tcg/aarch64: Reserve TCG_REG_TMP1, TCG_REG_TMP2

Message ID 20230526002334.1760495-8-richard.henderson@linaro.org
State Superseded
Headers show
Series tcg: Improvements to atomic128 | expand

Commit Message

Richard Henderson May 26, 2023, 12:23 a.m. UTC 
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/aarch64/tcg-target.c.inc | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

Comments

Peter Maydell May 30, 2023, 1:52 p.m. UTC | #1 
On Fri, 26 May 2023 at 01:26, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  tcg/aarch64/tcg-target.c.inc | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM
diff mbox series

Patch

diff --git a/tcg/aarch64/tcg-target.c.inc b/tcg/aarch64/tcg-target.c.inc
index 8996e29ca9..5e7ac6fb76 100644
--- a/tcg/aarch64/tcg-target.c.inc
+++ b/tcg/aarch64/tcg-target.c.inc
@@ -40,11 +40,12 @@  static const int tcg_target_reg_alloc_order[] = {
 
     TCG_REG_X8, TCG_REG_X9, TCG_REG_X10, TCG_REG_X11,
     TCG_REG_X12, TCG_REG_X13, TCG_REG_X14, TCG_REG_X15,
-    TCG_REG_X16, TCG_REG_X17,
 
     TCG_REG_X0, TCG_REG_X1, TCG_REG_X2, TCG_REG_X3,
     TCG_REG_X4, TCG_REG_X5, TCG_REG_X6, TCG_REG_X7,
 
+    /* X16 reserved as temporary */
+    /* X17 reserved as temporary */
     /* X18 reserved by system */
     /* X19 reserved for AREG0 */
     /* X29 reserved as fp */
@@ -71,7 +72,9 @@  static TCGReg tcg_target_call_oarg_reg(TCGCallReturnKind kind, int slot)
     return TCG_REG_X0 + slot;
 }
 
-#define TCG_REG_TMP0 TCG_REG_X30
+#define TCG_REG_TMP0 TCG_REG_X16
+#define TCG_REG_TMP1 TCG_REG_X17
+#define TCG_REG_TMP2 TCG_REG_X30
 #define TCG_VEC_TMP0 TCG_REG_V31
 
 #ifndef CONFIG_SOFTMMU
@@ -2902,6 +2905,8 @@  static void tcg_target_init(TCGContext *s)
     tcg_regset_set_reg(s->reserved_regs, TCG_REG_FP);
     tcg_regset_set_reg(s->reserved_regs, TCG_REG_X18); /* platform register */
     tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP0);
+    tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP1);
+    tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP2);
     tcg_regset_set_reg(s->reserved_regs, TCG_VEC_TMP0);
 }