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[Qemu-devel] [PATCH v2 10/29] tcg: Add tcg_out_dupm_vec to the backend i
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH v2 10/29] tcg: Add tcg_out_dupm_vec to the backend interface |
Date: |
Tue, 30 Apr 2019 22:05:17 -0700 |
Currently stubbed out in all backends that support vectors.
Signed-off-by: Richard Henderson <address@hidden>
---
tcg/aarch64/tcg-target.inc.c | 6 ++++++
tcg/i386/tcg-target.inc.c | 7 +++++++
tcg/tcg.c | 19 ++++++++++++++++++-
3 files changed, 31 insertions(+), 1 deletion(-)
diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c
index 3cefdd1e43..4a3cfa778a 100644
--- a/tcg/aarch64/tcg-target.inc.c
+++ b/tcg/aarch64/tcg-target.inc.c
@@ -822,6 +822,12 @@ static bool tcg_out_dup_vec(TCGContext *s, TCGType type,
unsigned vece,
return true;
}
+static bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece,
+ TCGReg r, TCGReg base, intptr_t offset)
+{
+ return false;
+}
+
static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg rd,
tcg_target_long value)
{
diff --git a/tcg/i386/tcg-target.inc.c b/tcg/i386/tcg-target.inc.c
index 3c8229d413..f04933bc19 100644
--- a/tcg/i386/tcg-target.inc.c
+++ b/tcg/i386/tcg-target.inc.c
@@ -891,6 +891,13 @@ static bool tcg_out_dup_vec(TCGContext *s, TCGType type,
unsigned vece,
return true;
}
+static bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece,
+ TCGReg r, TCGReg base, intptr_t offset)
+{
+ return false;
+}
+
+
static void tcg_out_dupi_vec(TCGContext *s, TCGType type,
TCGReg ret, tcg_target_long arg)
{
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 78fd0e4594..ef01cf8214 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -111,6 +111,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, const
TCGArg *args,
#if TCG_TARGET_MAYBE_vec
static bool tcg_out_dup_vec(TCGContext *s, TCGType type, unsigned vece,
TCGReg dst, TCGReg src);
+static bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece,
+ TCGReg dst, TCGReg base, intptr_t offset);
static void tcg_out_dupi_vec(TCGContext *s, TCGType type,
TCGReg dst, tcg_target_long arg);
static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc, unsigned vecl,
@@ -122,6 +124,11 @@ static inline bool tcg_out_dup_vec(TCGContext *s, TCGType
type, unsigned vece,
{
g_assert_not_reached();
}
+static inline bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece,
+ TCGReg dst, TCGReg base, intptr_t offset)
+{
+ g_assert_not_reached();
+}
static inline void tcg_out_dupi_vec(TCGContext *s, TCGType type,
TCGReg dst, tcg_target_long arg)
{
@@ -3413,6 +3420,7 @@ static void tcg_reg_alloc_dup(TCGContext *s, const TCGOp
*op)
TCGRegSet dup_out_regs, dup_in_regs;
TCGTemp *its, *ots;
TCGType itype, vtype;
+ intptr_t endian_fixup;
unsigned vece;
bool ok;
@@ -3482,7 +3490,16 @@ static void tcg_reg_alloc_dup(TCGContext *s, const TCGOp
*op)
/* fall through */
case TEMP_VAL_MEM:
- /* TODO: dup from memory */
+#ifdef HOST_WORDS_BIGENDIAN
+ endian_fixup = itype == TCG_TYPE_I32 ? 4 : 8;
+ endian_fixup -= 1 << vece;
+#else
+ endian_fixup = 0;
+#endif
+ if (tcg_out_dupm_vec(s, vtype, vece, ots->reg, its->mem_base->reg,
+ its->mem_offset + endian_fixup)) {
+ goto done;
+ }
tcg_out_ld(s, itype, ots->reg, its->mem_base->reg, its->mem_offset);
break;
--
2.17.1
- Re: [Qemu-devel] [PATCH v2 06/29] tcg: Return bool success from tcg_out_mov, (continued)
- [Qemu-devel] [PATCH v2 08/29] tcg: Promote tcg_out_{dup, dupi}_vec to backend interface, Richard Henderson, 2019/05/01
- [Qemu-devel] [PATCH v2 07/29] tcg: Support cross-class moves without instruction support, Richard Henderson, 2019/05/01
- [Qemu-devel] [PATCH v2 09/29] tcg: Manually expand INDEX_op_dup_vec, Richard Henderson, 2019/05/01
- [Qemu-devel] [PATCH v2 10/29] tcg: Add tcg_out_dupm_vec to the backend interface,
Richard Henderson <=
- [Qemu-devel] [PATCH v2 11/29] tcg/i386: Implement tcg_out_dupm_vec, Richard Henderson, 2019/05/01
- [Qemu-devel] [PATCH v2 13/29] tcg: Add INDEX_op_dup_mem_vec, Richard Henderson, 2019/05/01
- [Qemu-devel] [PATCH v2 16/29] tcg/aarch64: Support vector variable shift opcodes, Richard Henderson, 2019/05/01
- [Qemu-devel] [PATCH v2 12/29] tcg/aarch64: Implement tcg_out_dupm_vec, Richard Henderson, 2019/05/01
- [Qemu-devel] [PATCH v2 15/29] tcg/i386: Support vector variable shift opcodes, Richard Henderson, 2019/05/01