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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: qemu-arm@nongnu.org
Subject: [PATCH v4 07/16] tcg/aarch64: Reserve TCG_REG_TMP1, TCG_REG_TMP2
Date: Thu, 25 May 2023 17:23:25 -0700	[thread overview]
Message-ID: <20230526002334.1760495-8-richard.henderson@linaro.org> (raw)
In-Reply-To: <20230526002334.1760495-1-richard.henderson@linaro.org>

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

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);
 }
 
-- 
2.34.1



  parent reply	other threads:[~2023-05-26  0:27 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-26  0:23 [PATCH v4 00/16] tcg: Improvements to atomic128 Richard Henderson
2023-05-26  0:23 ` [PATCH v4 01/16] tcg: Fix register move type in tcg_out_ld_helper_ret Richard Henderson
2023-05-30 13:36   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 02/16] accel/tcg: Fix check for page writeability in load_atomic16_or_exit Richard Henderson
2023-05-30 13:44   ` Peter Maydell
2023-05-30 13:58     ` Richard Henderson
2023-05-30 14:06       ` Peter Maydell
2023-05-30 14:29         ` Richard Henderson
2023-05-30 14:48           ` Peter Maydell
2023-05-30 15:09             ` Richard Henderson
2023-05-30 15:18               ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 03/16] meson: Split test for __int128_t type from __int128_t arithmetic Richard Henderson
2023-05-30 13:47   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 04/16] qemu/atomic128: Add x86_64 atomic128-ldst.h Richard Henderson
2023-05-26  0:23 ` [PATCH v4 05/16] tcg/i386: Support 128-bit load/store Richard Henderson
2023-05-30 15:02   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 06/16] tcg/aarch64: Rename temporaries Richard Henderson
2023-05-26  0:23 ` Richard Henderson [this message]
2023-05-30 13:52   ` [PATCH v4 07/16] tcg/aarch64: Reserve TCG_REG_TMP1, TCG_REG_TMP2 Peter Maydell
2023-05-26  0:23 ` [PATCH v4 08/16] tcg/aarch64: Simplify constraints on qemu_ld/st Richard Henderson
2023-05-30 13:55   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 09/16] tcg/aarch64: Support 128-bit load/store Richard Henderson
2023-05-26  0:23 ` [PATCH v4 10/16] tcg/ppc: " Richard Henderson
2023-05-26  0:23 ` [PATCH v4 11/16] tcg/s390x: " Richard Henderson
2023-05-26  0:23 ` [PATCH v4 12/16] accel/tcg: Extract load_atom_extract_al16_or_al8 to host header Richard Henderson
2023-05-30 13:58   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 13/16] accel/tcg: Extract store_atom_insert_al16 " Richard Henderson
2023-05-30 13:59   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 14/16] accel/tcg: Add x86_64 load_atom_extract_al16_or_al8 Richard Henderson
2023-05-30 14:01   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 15/16] accel/tcg: Add aarch64 lse2 load_atom_extract_al16_or_al8 Richard Henderson
2023-05-30 14:02   ` Peter Maydell
2023-05-26  0:23 ` [PATCH v4 16/16] accel/tcg: Add aarch64 store_atom_insert_al16 Richard Henderson
2023-05-30 14:04   ` Peter Maydell

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