From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: qemu-arm@nongnu.org, qemu-s390x@nongnu.org,
qemu-riscv@nongnu.org, qemu-ppc@nongnu.org
Subject: [PATCH v2 17/54] tcg: Introduce tcg_out_xchg
Date: Mon, 10 Apr 2023 18:04:35 -0700 [thread overview]
Message-ID: <20230411010512.5375-18-richard.henderson@linaro.org> (raw)
In-Reply-To: <20230411010512.5375-1-richard.henderson@linaro.org>
We will want a backend interface for register swapping.
This is only properly defined for x86; all others get a
stub version that always indicates failure.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/tcg.c | 2 ++
tcg/aarch64/tcg-target.c.inc | 5 +++++
tcg/arm/tcg-target.c.inc | 5 +++++
tcg/i386/tcg-target.c.inc | 8 ++++++++
tcg/loongarch64/tcg-target.c.inc | 5 +++++
tcg/mips/tcg-target.c.inc | 5 +++++
tcg/ppc/tcg-target.c.inc | 5 +++++
tcg/riscv/tcg-target.c.inc | 5 +++++
tcg/s390x/tcg-target.c.inc | 5 +++++
tcg/sparc64/tcg-target.c.inc | 5 +++++
tcg/tci/tcg-target.c.inc | 5 +++++
11 files changed, 55 insertions(+)
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 328e018a80..fde5ccc57c 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -115,6 +115,8 @@ static void tcg_out_exts_i32_i64(TCGContext *s, TCGReg ret, TCGReg arg);
static void tcg_out_extu_i32_i64(TCGContext *s, TCGReg ret, TCGReg arg);
static void tcg_out_extrl_i64_i32(TCGContext *s, TCGReg ret, TCGReg arg);
static void tcg_out_addi_ptr(TCGContext *s, TCGReg, TCGReg, tcg_target_long);
+static bool tcg_out_xchg(TCGContext *s, TCGType type, TCGReg r1, TCGReg r2)
+ __attribute__((unused));
static void tcg_out_exit_tb(TCGContext *s, uintptr_t arg);
static void tcg_out_goto_tb(TCGContext *s, int which);
static void tcg_out_op(TCGContext *s, TCGOpcode opc,
diff --git a/tcg/aarch64/tcg-target.c.inc b/tcg/aarch64/tcg-target.c.inc
index 29bc97ed1c..4ec3cf3172 100644
--- a/tcg/aarch64/tcg-target.c.inc
+++ b/tcg/aarch64/tcg-target.c.inc
@@ -1106,6 +1106,11 @@ static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg rd,
tcg_out_insn(s, 3305, LDR, 0, rd);
}
+static bool tcg_out_xchg(TCGContext *s, TCGType type, TCGReg r1, TCGReg r2)
+{
+ return false;
+}
+
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
diff --git a/tcg/arm/tcg-target.c.inc b/tcg/arm/tcg-target.c.inc
index f865294861..4a5d57a41c 100644
--- a/tcg/arm/tcg-target.c.inc
+++ b/tcg/arm/tcg-target.c.inc
@@ -2607,6 +2607,11 @@ static void tcg_out_movi(TCGContext *s, TCGType type,
tcg_out_movi32(s, COND_AL, ret, arg);
}
+static bool tcg_out_xchg(TCGContext *s, TCGType type, TCGReg r1, TCGReg r2)
+{
+ return false;
+}
+
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc
index 4847da7e1a..ce87f8fbc9 100644
--- a/tcg/i386/tcg-target.c.inc
+++ b/tcg/i386/tcg-target.c.inc
@@ -460,6 +460,7 @@ static bool tcg_target_const_match(int64_t val, TCGType type, int ct)
#define OPC_VPTERNLOGQ (0x25 | P_EXT3A | P_DATA16 | P_VEXW | P_EVEX)
#define OPC_VZEROUPPER (0x77 | P_EXT)
#define OPC_XCHG_ax_r32 (0x90)
+#define OPC_XCHG_EvGv (0x87)
#define OPC_GRP3_Eb (0xf6)
#define OPC_GRP3_Ev (0xf7)
@@ -1078,6 +1079,13 @@ static void tcg_out_movi(TCGContext *s, TCGType type,
}
}
+static bool tcg_out_xchg(TCGContext *s, TCGType type, TCGReg r1, TCGReg r2)
+{
+ int rexw = type == TCG_TYPE_I32 ? 0 : P_REXW;
+ tcg_out_modrm(s, OPC_XCHG_EvGv + rexw, r1, r2);
+ return true;
+}
+
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index fc98b9b31b..0940788c6f 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -419,6 +419,11 @@ static void tcg_out_addi(TCGContext *s, TCGType type, TCGReg rd,
}
}
+static bool tcg_out_xchg(TCGContext *s, TCGType type, TCGReg r1, TCGReg r2)
+{
+ return false;
+}
+
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
diff --git a/tcg/mips/tcg-target.c.inc b/tcg/mips/tcg-target.c.inc
index f103cdb4e6..a83ebe8729 100644
--- a/tcg/mips/tcg-target.c.inc
+++ b/tcg/mips/tcg-target.c.inc
@@ -597,6 +597,11 @@ static void tcg_out_extrl_i64_i32(TCGContext *s, TCGReg rd, TCGReg rs)
tcg_out_ext32s(s, rd, rs);
}
+static bool tcg_out_xchg(TCGContext *s, TCGType type, TCGReg r1, TCGReg r2)
+{
+ return false;
+}
+
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index b1d9c0bbe4..77abb7d20c 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -1154,6 +1154,11 @@ static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg ret,
}
}
+static bool tcg_out_xchg(TCGContext *s, TCGType type, TCGReg r1, TCGReg r2)
+{
+ return false;
+}
+
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc
index 081782d8c6..266fe1433d 100644
--- a/tcg/riscv/tcg-target.c.inc
+++ b/tcg/riscv/tcg-target.c.inc
@@ -561,6 +561,11 @@ static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg rd,
tcg_out_opc_imm(s, OPC_LD, rd, rd, 0);
}
+static bool tcg_out_xchg(TCGContext *s, TCGType type, TCGReg r1, TCGReg r2)
+{
+ return false;
+}
+
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc
index 0578fce4d7..b399798664 100644
--- a/tcg/s390x/tcg-target.c.inc
+++ b/tcg/s390x/tcg-target.c.inc
@@ -1076,6 +1076,11 @@ static inline bool tcg_out_sti(TCGContext *s, TCGType type, TCGArg val,
return false;
}
+static bool tcg_out_xchg(TCGContext *s, TCGType type, TCGReg r1, TCGReg r2)
+{
+ return false;
+}
+
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
diff --git a/tcg/sparc64/tcg-target.c.inc b/tcg/sparc64/tcg-target.c.inc
index 99ba0fdc2b..086981f097 100644
--- a/tcg/sparc64/tcg-target.c.inc
+++ b/tcg/sparc64/tcg-target.c.inc
@@ -542,6 +542,11 @@ static void tcg_out_extrl_i64_i32(TCGContext *s, TCGReg rd, TCGReg rs)
tcg_out_mov(s, TCG_TYPE_I32, rd, rs);
}
+static bool tcg_out_xchg(TCGContext *s, TCGType type, TCGReg r1, TCGReg r2)
+{
+ return false;
+}
+
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
diff --git a/tcg/tci/tcg-target.c.inc b/tcg/tci/tcg-target.c.inc
index 68531e35ec..4cf03a579c 100644
--- a/tcg/tci/tcg-target.c.inc
+++ b/tcg/tci/tcg-target.c.inc
@@ -645,6 +645,11 @@ static void tcg_out_extrl_i64_i32(TCGContext *s, TCGReg rd, TCGReg rs)
tcg_out_mov(s, TCG_TYPE_I32, rd, rs);
}
+static bool tcg_out_xchg(TCGContext *s, TCGType type, TCGReg r1, TCGReg r2)
+{
+ return false;
+}
+
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
--
2.34.1
next prev parent reply other threads:[~2023-04-11 1:18 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-11 1:04 [PATCH v2 00/54] tcg: Simplify calls to load/store helpers Richard Henderson
2023-04-11 1:04 ` [PATCH v2 01/54] tcg: Replace if + tcg_abort with tcg_debug_assert Richard Henderson
2023-04-21 22:11 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 02/54] tcg: Replace tcg_abort with g_assert_not_reached Richard Henderson
2023-04-21 22:08 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 03/54] tcg: Split out tcg_out_ext8s Richard Henderson
2023-04-21 22:08 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 04/54] tcg: Split out tcg_out_ext8u Richard Henderson
2023-04-21 22:09 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 05/54] tcg: Split out tcg_out_ext16s Richard Henderson
2023-04-21 22:09 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 06/54] tcg: Split out tcg_out_ext16u Richard Henderson
2023-04-21 22:09 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 07/54] tcg: Split out tcg_out_ext32s Richard Henderson
2023-04-21 22:38 ` Philippe Mathieu-Daudé
2023-04-21 22:42 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 08/54] tcg: Split out tcg_out_ext32u Richard Henderson
2023-04-21 22:40 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 09/54] tcg: Split out tcg_out_exts_i32_i64 Richard Henderson
2023-04-21 22:44 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 10/54] tcg/loongarch64: Conditionalize tcg_out_exts_i32_i64 Richard Henderson
2023-04-11 1:04 ` [PATCH v2 11/54] tcg/mips: " Richard Henderson
2023-04-11 1:04 ` [PATCH v2 12/54] tcg/riscv: " Richard Henderson
2023-04-12 20:01 ` Daniel Henrique Barboza
2023-04-11 1:04 ` [PATCH v2 13/54] tcg: Split out tcg_out_extu_i32_i64 Richard Henderson
2023-04-21 22:46 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 14/54] tcg/i386: Conditionalize tcg_out_extu_i32_i64 Richard Henderson
2023-04-11 1:04 ` [PATCH v2 15/54] tcg: Split out tcg_out_extrl_i64_i32 Richard Henderson
2023-04-21 22:48 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 16/54] tcg: Introduce tcg_out_movext Richard Henderson
2023-04-21 23:02 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` Richard Henderson [this message]
2023-04-21 23:05 ` [PATCH v2 17/54] tcg: Introduce tcg_out_xchg Philippe Mathieu-Daudé
2023-04-21 23:08 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 18/54] tcg: Introduce tcg_out_movext2 Richard Henderson
2023-04-11 1:04 ` [PATCH v2 19/54] tcg: Clear TCGLabelQemuLdst on allocation Richard Henderson
2023-04-21 22:20 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 20/54] tcg/i386: Rationalize args to tcg_out_qemu_{ld,st} Richard Henderson
2023-04-23 18:45 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 21/54] tcg/aarch64: Rationalize args to tcg_out_qemu_{ld, st} Richard Henderson
2023-04-21 22:19 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 22/54] tcg/arm: Rationalize args to tcg_out_qemu_{ld,st} Richard Henderson
2023-04-23 18:43 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 23/54] tcg/mips: " Richard Henderson
2023-04-11 1:04 ` [PATCH v2 24/54] tcg/loongarch64: Rationalize args to tcg_out_qemu_{ld, st} Richard Henderson
2023-04-11 1:04 ` [PATCH v2 25/54] tcg/ppc: Rationalize args to tcg_out_qemu_{ld,st} Richard Henderson
2023-04-12 19:06 ` Daniel Henrique Barboza
2023-04-23 18:48 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 26/54] tcg/s390x: Pass TCGType " Richard Henderson
2023-04-21 22:15 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 27/54] tcg/riscv: Require TCG_TARGET_REG_BITS == 64 Richard Henderson
2023-04-12 20:18 ` Daniel Henrique Barboza
2023-04-13 7:12 ` Richard Henderson
2023-04-13 9:55 ` Daniel Henrique Barboza
2023-04-13 9:55 ` Daniel Henrique Barboza
2023-04-23 18:33 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 28/54] tcg/riscv: Rationalize args to tcg_out_qemu_{ld,st} Richard Henderson
2023-04-12 20:19 ` Daniel Henrique Barboza
2023-04-23 18:35 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 29/54] tcg/sparc64: Drop is_64 test from tcg_out_qemu_ld data return Richard Henderson
2023-04-21 22:27 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 30/54] tcg/sparc64: Pass TCGType to tcg_out_qemu_{ld,st} Richard Henderson
2023-04-21 22:28 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 31/54] tcg: Move TCGLabelQemuLdst to tcg.c Richard Henderson
2023-04-21 22:29 ` Philippe Mathieu-Daudé
2023-04-23 7:30 ` Richard Henderson
2023-04-11 1:04 ` [PATCH v2 32/54] tcg: Replace REG_P with arg_loc_reg_p Richard Henderson
2023-04-23 18:50 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 33/54] tcg: Introduce arg_slot_stk_ofs Richard Henderson
2023-04-23 18:55 ` Philippe Mathieu-Daudé
2023-04-24 4:36 ` Richard Henderson
2023-04-11 1:04 ` [PATCH v2 34/54] tcg: Widen helper_*_st[bw]_mmu val arguments Richard Henderson
2023-04-23 18:57 ` Philippe Mathieu-Daudé
2023-04-11 1:04 ` [PATCH v2 35/54] tcg: Add routines for calling slow-path helpers Richard Henderson
2023-04-11 1:04 ` [PATCH v2 36/54] tcg/i386: Convert tcg_out_qemu_ld_slow_path Richard Henderson
2023-04-11 1:04 ` [PATCH v2 37/54] tcg/i386: Convert tcg_out_qemu_st_slow_path Richard Henderson
2023-04-11 1:04 ` [PATCH v2 38/54] tcg/aarch64: Convert tcg_out_qemu_{ld,st}_slow_path Richard Henderson
2023-04-11 1:04 ` [PATCH v2 39/54] tcg/arm: " Richard Henderson
2023-04-11 1:04 ` [PATCH v2 40/54] tcg/loongarch64: Convert tcg_out_qemu_{ld, st}_slow_path Richard Henderson
2023-04-11 1:04 ` [PATCH v2 41/54] tcg/mips: Convert tcg_out_qemu_{ld,st}_slow_path Richard Henderson
2023-04-11 1:05 ` [PATCH v2 42/54] tcg/ppc: " Richard Henderson
2023-04-12 19:06 ` Daniel Henrique Barboza
2023-04-11 1:05 ` [PATCH v2 43/54] tcg/riscv: " Richard Henderson
2023-04-12 20:19 ` Daniel Henrique Barboza
2023-04-11 1:05 ` [PATCH v2 44/54] tcg/s390x: " Richard Henderson
2023-04-11 1:05 ` [PATCH v2 45/54] tcg/loongarch64: Simplify constraints on qemu_ld/st Richard Henderson
2023-04-11 1:05 ` [PATCH v2 46/54] tcg/mips: Remove MO_BSWAP handling Richard Henderson
2023-04-11 1:05 ` [PATCH v2 47/54] tcg/mips: Reorg tcg_out_tlb_load Richard Henderson
2023-04-11 1:05 ` [PATCH v2 48/54] tcg/mips: Simplify constraints on qemu_ld/st Richard Henderson
2023-04-11 1:05 ` [PATCH v2 49/54] tcg/ppc: Reorg tcg_out_tlb_read Richard Henderson
2023-04-12 19:09 ` Daniel Henrique Barboza
2023-04-11 1:05 ` [PATCH v2 50/54] tcg/ppc: Adjust constraints on qemu_ld/st Richard Henderson
2023-04-12 19:09 ` Daniel Henrique Barboza
2023-04-11 1:05 ` [PATCH v2 51/54] tcg/ppc: Remove unused constraints A, B, C, D Richard Henderson
2023-04-12 19:09 ` Daniel Henrique Barboza
2023-04-11 1:05 ` [PATCH v2 52/54] tcg/riscv: Simplify constraints on qemu_ld/st Richard Henderson
2023-04-12 20:20 ` Daniel Henrique Barboza
2023-04-11 1:05 ` [PATCH v2 53/54] tcg/s390x: Use ALGFR in constructing host address for qemu_ld/st Richard Henderson
2023-04-11 1:05 ` [PATCH v2 54/54] tcg/s390x: Simplify constraints on qemu_ld/st Richard Henderson
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