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.hender...@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
