tcg: Remove TCG_TARGET_HAS_new_ldst

Since all backends have been converted, remove the compatibility code.

Acked-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>

13 files changed, 28 insertions, 234 deletions

diff --git a/tcg/aarch64/tcg-target.h b/tcg/aarch64/tcg-target.h
index a32aea66fa..60c7493ac1 100644
--- a/tcg/aarch64/tcg-target.h
+++ b/tcg/aarch64/tcg-target.h
@@ -99,8 +99,6 @@ typedef enum {
 #define TCG_TARGET_HAS_muluh_i64        1
 #define TCG_TARGET_HAS_mulsh_i64        1
 
-#define TCG_TARGET_HAS_new_ldst         1
-
 static inline void flush_icache_range(uintptr_t start, uintptr_t stop)
 {
     __builtin___clear_cache((char *)start, (char *)stop);
diff --git a/tcg/arm/tcg-target.h b/tcg/arm/tcg-target.h
index 73f10c4424..1c719e2862 100644
--- a/tcg/arm/tcg-target.h
+++ b/tcg/arm/tcg-target.h
@@ -86,8 +86,6 @@ extern bool use_idiv_instructions;
 #define TCG_TARGET_HAS_div_i32          use_idiv_instructions
 #define TCG_TARGET_HAS_rem_i32          0
 
-#define TCG_TARGET_HAS_new_ldst         1
-
 extern bool tcg_target_deposit_valid(int ofs, int len);
 #define TCG_TARGET_deposit_i32_valid  tcg_target_deposit_valid
 
diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h
index 6c94e5cde0..7a9980e70e 100644
--- a/tcg/i386/tcg-target.h
+++ b/tcg/i386/tcg-target.h
@@ -130,8 +130,6 @@ extern bool have_bmi1;
 #define TCG_TARGET_HAS_mulsh_i64        0
 #endif
 
-#define TCG_TARGET_HAS_new_ldst         1
-
 #define TCG_TARGET_deposit_i32_valid(ofs, len) \
     (((ofs) == 0 && (len) == 8) || ((ofs) == 8 && (len) == 8) || \
      ((ofs) == 0 && (len) == 16))
diff --git a/tcg/ia64/tcg-target.h b/tcg/ia64/tcg-target.h
index 3a59b50349..d67558988a 100644
--- a/tcg/ia64/tcg-target.h
+++ b/tcg/ia64/tcg-target.h
@@ -160,8 +160,6 @@ typedef enum {
 #define TCG_TARGET_HAS_mulsh_i64        0
 #define TCG_TARGET_HAS_trunc_shr_i32    0
 
-#define TCG_TARGET_HAS_new_ldst         1
-
 #define TCG_TARGET_deposit_i32_valid(ofs, len) ((len) <= 16)
 #define TCG_TARGET_deposit_i64_valid(ofs, len) ((len) <= 16)
 
diff --git a/tcg/mips/tcg-target.h b/tcg/mips/tcg-target.h
index b5face8b4d..c88a1c9272 100644
--- a/tcg/mips/tcg-target.h
+++ b/tcg/mips/tcg-target.h
@@ -118,8 +118,6 @@ extern bool use_mips32r2_instructions;
 #define TCG_TARGET_HAS_ext16s_i32       use_mips32r2_instructions
 #define TCG_TARGET_HAS_rot_i32          use_mips32r2_instructions
 
-#define TCG_TARGET_HAS_new_ldst         1
-
 /* optional instructions automatically implemented */
 #define TCG_TARGET_HAS_neg_i32          0 /* sub  rd, zero, rt   */
 #define TCG_TARGET_HAS_ext8u_i32        0 /* andi rt, rs, 0xff   */
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 77da2f942a..16cebbe16d 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -889,17 +889,12 @@ static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t *tcg_opc_ptr,
             break;
 
         CASE_OP_32_64(ld8u):
-        case INDEX_op_qemu_ld8u:
             mask = 0xff;
             break;
         CASE_OP_32_64(ld16u):
-        case INDEX_op_qemu_ld16u:
             mask = 0xffff;
             break;
         case INDEX_op_ld32u_i64:
-#if TCG_TARGET_REG_BITS == 64
-        case INDEX_op_qemu_ld32u:
-#endif
             mask = 0xffffffffu;
             break;
 
diff --git a/tcg/ppc/tcg-target.h b/tcg/ppc/tcg-target.h
index dd7e557948..05069ae2d8 100644
--- a/tcg/ppc/tcg-target.h
+++ b/tcg/ppc/tcg-target.h
@@ -100,8 +100,6 @@ typedef enum {
 #define TCG_TARGET_HAS_muluh_i32        0
 #define TCG_TARGET_HAS_mulsh_i32        0
 
-#define TCG_TARGET_HAS_new_ldst         1
-
 #define TCG_AREG0 TCG_REG_R27
 
 #define tcg_qemu_tb_exec(env, tb_ptr) \
diff --git a/tcg/ppc64/tcg-target.h b/tcg/ppc64/tcg-target.h
index 29f479a3cf..f2360c869a 100644
--- a/tcg/ppc64/tcg-target.h
+++ b/tcg/ppc64/tcg-target.h
@@ -124,8 +124,6 @@ typedef enum {
 #define TCG_TARGET_HAS_muluh_i64        1
 #define TCG_TARGET_HAS_mulsh_i64        1
 
-#define TCG_TARGET_HAS_new_ldst         1
-
 #define TCG_AREG0 TCG_REG_R27
 
 #define TCG_TARGET_EXTEND_ARGS 1
diff --git a/tcg/s390/tcg-target.h b/tcg/s390/tcg-target.h
index ad2c6ddaf4..5acc28ca6b 100644
--- a/tcg/s390/tcg-target.h
+++ b/tcg/s390/tcg-target.h
@@ -100,8 +100,6 @@ typedef enum TCGReg {
 #define TCG_TARGET_HAS_muluh_i64        0
 #define TCG_TARGET_HAS_mulsh_i64        0
 
-#define TCG_TARGET_HAS_new_ldst         1
-
 extern bool tcg_target_deposit_valid(int ofs, int len);
 #define TCG_TARGET_deposit_i32_valid  tcg_target_deposit_valid
 #define TCG_TARGET_deposit_i64_valid  tcg_target_deposit_valid
diff --git a/tcg/sparc/tcg-target.h b/tcg/sparc/tcg-target.h
index 473bfc71fd..089f9761ca 100644
--- a/tcg/sparc/tcg-target.h
+++ b/tcg/sparc/tcg-target.h
@@ -140,8 +140,6 @@ typedef enum {
 #define TCG_TARGET_HAS_muluh_i64        0
 #define TCG_TARGET_HAS_mulsh_i64        0
 
-#define TCG_TARGET_HAS_new_ldst         1
-
 #define TCG_AREG0 TCG_REG_I0
 
 static inline void flush_icache_range(uintptr_t start, uintptr_t stop)
diff --git a/tcg/tcg-opc.h b/tcg/tcg-opc.h
index 71ba64ac16..042d442c7e 100644
--- a/tcg/tcg-opc.h
+++ b/tcg/tcg-opc.h
@@ -185,106 +185,20 @@ DEF(debug_insn_start, 0, 0, 1, TCG_OPF_NOT_PRESENT)
 DEF(exit_tb, 0, 0, 1, TCG_OPF_BB_END)
 DEF(goto_tb, 0, 0, 1, TCG_OPF_BB_END)
 
-#define IMPL_NEW_LDST \
-    (TCG_OPF_CALL_CLOBBER | TCG_OPF_SIDE_EFFECTS \
-     | IMPL(TCG_TARGET_HAS_new_ldst))
-
-#if TARGET_LONG_BITS <= TCG_TARGET_REG_BITS
-DEF(qemu_ld_i32, 1, 1, 2, IMPL_NEW_LDST)
-DEF(qemu_st_i32, 0, 2, 2, IMPL_NEW_LDST)
-# if TCG_TARGET_REG_BITS == 64
-DEF(qemu_ld_i64, 1, 1, 2, IMPL_NEW_LDST | TCG_OPF_64BIT)
-DEF(qemu_st_i64, 0, 2, 2, IMPL_NEW_LDST | TCG_OPF_64BIT)
-# else
-DEF(qemu_ld_i64, 2, 1, 2, IMPL_NEW_LDST | TCG_OPF_64BIT)
-DEF(qemu_st_i64, 0, 3, 2, IMPL_NEW_LDST | TCG_OPF_64BIT)
-# endif
-#else
-DEF(qemu_ld_i32, 1, 2, 2, IMPL_NEW_LDST)
-DEF(qemu_st_i32, 0, 3, 2, IMPL_NEW_LDST)
-DEF(qemu_ld_i64, 2, 2, 2, IMPL_NEW_LDST | TCG_OPF_64BIT)
-DEF(qemu_st_i64, 0, 4, 2, IMPL_NEW_LDST | TCG_OPF_64BIT)
-#endif
-
-#undef IMPL_NEW_LDST
-
-#define IMPL_OLD_LDST \
-    (TCG_OPF_CALL_CLOBBER | TCG_OPF_SIDE_EFFECTS \
-     | IMPL(!TCG_TARGET_HAS_new_ldst))
-
-#if TCG_TARGET_REG_BITS == 32
-#if TARGET_LONG_BITS == 32
-DEF(qemu_ld8u, 1, 1, 1, IMPL_OLD_LDST)
-#else
-DEF(qemu_ld8u, 1, 2, 1, IMPL_OLD_LDST)
-#endif
-#if TARGET_LONG_BITS == 32
-DEF(qemu_ld8s, 1, 1, 1, IMPL_OLD_LDST)
-#else
-DEF(qemu_ld8s, 1, 2, 1, IMPL_OLD_LDST)
-#endif
-#if TARGET_LONG_BITS == 32
-DEF(qemu_ld16u, 1, 1, 1, IMPL_OLD_LDST)
-#else
-DEF(qemu_ld16u, 1, 2, 1, IMPL_OLD_LDST)
-#endif
-#if TARGET_LONG_BITS == 32
-DEF(qemu_ld16s, 1, 1, 1, IMPL_OLD_LDST)
-#else
-DEF(qemu_ld16s, 1, 2, 1, IMPL_OLD_LDST)
-#endif
-#if TARGET_LONG_BITS == 32
-DEF(qemu_ld32, 1, 1, 1, IMPL_OLD_LDST)
-#else
-DEF(qemu_ld32, 1, 2, 1, IMPL_OLD_LDST)
-#endif
-#if TARGET_LONG_BITS == 32
-DEF(qemu_ld64, 2, 1, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-#else
-DEF(qemu_ld64, 2, 2, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-#endif
-
-#if TARGET_LONG_BITS == 32
-DEF(qemu_st8, 0, 2, 1, IMPL_OLD_LDST)
-#else
-DEF(qemu_st8, 0, 3, 1, IMPL_OLD_LDST)
-#endif
-#if TARGET_LONG_BITS == 32
-DEF(qemu_st16, 0, 2, 1, IMPL_OLD_LDST)
-#else
-DEF(qemu_st16, 0, 3, 1, IMPL_OLD_LDST)
-#endif
-#if TARGET_LONG_BITS == 32
-DEF(qemu_st32, 0, 2, 1, IMPL_OLD_LDST)
-#else
-DEF(qemu_st32, 0, 3, 1, IMPL_OLD_LDST)
-#endif
-#if TARGET_LONG_BITS == 32
-DEF(qemu_st64, 0, 3, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-#else
-DEF(qemu_st64, 0, 4, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-#endif
-
-#else /* TCG_TARGET_REG_BITS == 32 */
-
-DEF(qemu_ld8u, 1, 1, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-DEF(qemu_ld8s, 1, 1, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-DEF(qemu_ld16u, 1, 1, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-DEF(qemu_ld16s, 1, 1, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-DEF(qemu_ld32, 1, 1, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-DEF(qemu_ld32u, 1, 1, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-DEF(qemu_ld32s, 1, 1, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-DEF(qemu_ld64, 1, 1, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-
-DEF(qemu_st8, 0, 2, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-DEF(qemu_st16, 0, 2, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-DEF(qemu_st32, 0, 2, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-DEF(qemu_st64, 0, 2, 1, IMPL_OLD_LDST | TCG_OPF_64BIT)
-
-#endif /* TCG_TARGET_REG_BITS != 32 */
-
-#undef IMPL_OLD_LDST
-
+#define TLADDR_ARGS    (TARGET_LONG_BITS <= TCG_TARGET_REG_BITS ? 1 : 2)
+#define DATA64_ARGS  (TCG_TARGET_REG_BITS == 64 ? 1 : 2)
+
+DEF(qemu_ld_i32, 1, TLADDR_ARGS, 2,
+    TCG_OPF_CALL_CLOBBER | TCG_OPF_SIDE_EFFECTS)
+DEF(qemu_st_i32, 0, TLADDR_ARGS + 1, 2,
+    TCG_OPF_CALL_CLOBBER | TCG_OPF_SIDE_EFFECTS)
+DEF(qemu_ld_i64, DATA64_ARGS, TLADDR_ARGS, 2,
+    TCG_OPF_CALL_CLOBBER | TCG_OPF_SIDE_EFFECTS | TCG_OPF_64BIT)
+DEF(qemu_st_i64, 0, TLADDR_ARGS + DATA64_ARGS, 2,
+    TCG_OPF_CALL_CLOBBER | TCG_OPF_SIDE_EFFECTS | TCG_OPF_64BIT)
+
+#undef TLADDR_ARGS
+#undef DATA64_ARGS
 #undef IMPL
 #undef IMPL64
 #undef DEF
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 2c5732da17..dae4b7cb00 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -941,97 +941,26 @@ static inline TCGMemOp tcg_canonicalize_memop(TCGMemOp op, bool is64, bool st)
     return op;
 }
 
-static const TCGOpcode old_ld_opc[8] = {
-    [MO_UB] = INDEX_op_qemu_ld8u,
-    [MO_SB] = INDEX_op_qemu_ld8s,
-    [MO_UW] = INDEX_op_qemu_ld16u,
-    [MO_SW] = INDEX_op_qemu_ld16s,
-#if TCG_TARGET_REG_BITS == 32
-    [MO_UL] = INDEX_op_qemu_ld32,
-    [MO_SL] = INDEX_op_qemu_ld32,
-#else
-    [MO_UL] = INDEX_op_qemu_ld32u,
-    [MO_SL] = INDEX_op_qemu_ld32s,
-#endif
-    [MO_Q]  = INDEX_op_qemu_ld64,
-};
-
-static const TCGOpcode old_st_opc[4] = {
-    [MO_UB] = INDEX_op_qemu_st8,
-    [MO_UW] = INDEX_op_qemu_st16,
-    [MO_UL] = INDEX_op_qemu_st32,
-    [MO_Q]  = INDEX_op_qemu_st64,
-};
-
 void tcg_gen_qemu_ld_i32(TCGv_i32 val, TCGv addr, TCGArg idx, TCGMemOp memop)
 {
     memop = tcg_canonicalize_memop(memop, 0, 0);
 
-    if (TCG_TARGET_HAS_new_ldst) {
-        *tcg_ctx.gen_opc_ptr++ = INDEX_op_qemu_ld_i32;
-        tcg_add_param_i32(val);
-        tcg_add_param_tl(addr);
-        *tcg_ctx.gen_opparam_ptr++ = memop;
-        *tcg_ctx.gen_opparam_ptr++ = idx;
-        return;
-    }
-
-    /* The old opcodes only support target-endian memory operations.  */
-    assert((memop & MO_BSWAP) == MO_TE || (memop & MO_SIZE) == MO_8);
-    assert(old_ld_opc[memop & MO_SSIZE] != 0);
-
-    if (TCG_TARGET_REG_BITS == 32) {
-        *tcg_ctx.gen_opc_ptr++ = old_ld_opc[memop & MO_SSIZE];
-        tcg_add_param_i32(val);
-        tcg_add_param_tl(addr);
-        *tcg_ctx.gen_opparam_ptr++ = idx;
-    } else {
-        TCGv_i64 val64 = tcg_temp_new_i64();
-
-        *tcg_ctx.gen_opc_ptr++ = old_ld_opc[memop & MO_SSIZE];
-        tcg_add_param_i64(val64);
-        tcg_add_param_tl(addr);
-        *tcg_ctx.gen_opparam_ptr++ = idx;
-
-        tcg_gen_trunc_i64_i32(val, val64);
-        tcg_temp_free_i64(val64);
-    }
+    *tcg_ctx.gen_opc_ptr++ = INDEX_op_qemu_ld_i32;
+    tcg_add_param_i32(val);
+    tcg_add_param_tl(addr);
+    *tcg_ctx.gen_opparam_ptr++ = memop;
+    *tcg_ctx.gen_opparam_ptr++ = idx;
 }
 
 void tcg_gen_qemu_st_i32(TCGv_i32 val, TCGv addr, TCGArg idx, TCGMemOp memop)
 {
     memop = tcg_canonicalize_memop(memop, 0, 1);
 
-    if (TCG_TARGET_HAS_new_ldst) {
-        *tcg_ctx.gen_opc_ptr++ = INDEX_op_qemu_st_i32;
-        tcg_add_param_i32(val);
-        tcg_add_param_tl(addr);
-        *tcg_ctx.gen_opparam_ptr++ = memop;
-        *tcg_ctx.gen_opparam_ptr++ = idx;
-        return;
-    }
-
-    /* The old opcodes only support target-endian memory operations.  */
-    assert((memop & MO_BSWAP) == MO_TE || (memop & MO_SIZE) == MO_8);
-    assert(old_st_opc[memop & MO_SIZE] != 0);
-
-    if (TCG_TARGET_REG_BITS == 32) {
-        *tcg_ctx.gen_opc_ptr++ = old_st_opc[memop & MO_SIZE];
-        tcg_add_param_i32(val);
-        tcg_add_param_tl(addr);
-        *tcg_ctx.gen_opparam_ptr++ = idx;
-    } else {
-        TCGv_i64 val64 = tcg_temp_new_i64();
-
-        tcg_gen_extu_i32_i64(val64, val);
-
-        *tcg_ctx.gen_opc_ptr++ = old_st_opc[memop & MO_SIZE];
-        tcg_add_param_i64(val64);
-        tcg_add_param_tl(addr);
-        *tcg_ctx.gen_opparam_ptr++ = idx;
-
-        tcg_temp_free_i64(val64);
-    }
+    *tcg_ctx.gen_opc_ptr++ = INDEX_op_qemu_st_i32;
+    tcg_add_param_i32(val);
+    tcg_add_param_tl(addr);
+    *tcg_ctx.gen_opparam_ptr++ = memop;
+    *tcg_ctx.gen_opparam_ptr++ = idx;
 }
 
 void tcg_gen_qemu_ld_i64(TCGv_i64 val, TCGv addr, TCGArg idx, TCGMemOp memop)
@@ -1050,22 +979,10 @@ void tcg_gen_qemu_ld_i64(TCGv_i64 val, TCGv addr, TCGArg idx, TCGMemOp memop)
     }
 #endif
 
-    if (TCG_TARGET_HAS_new_ldst) {
-        *tcg_ctx.gen_opc_ptr++ = INDEX_op_qemu_ld_i64;
-        tcg_add_param_i64(val);
-        tcg_add_param_tl(addr);
-        *tcg_ctx.gen_opparam_ptr++ = memop;
-        *tcg_ctx.gen_opparam_ptr++ = idx;
-        return;
-    }
-
-    /* The old opcodes only support target-endian memory operations.  */
-    assert((memop & MO_BSWAP) == MO_TE || (memop & MO_SIZE) == MO_8);
-    assert(old_ld_opc[memop & MO_SSIZE] != 0);
-
-    *tcg_ctx.gen_opc_ptr++ = old_ld_opc[memop & MO_SSIZE];
+    *tcg_ctx.gen_opc_ptr++ = INDEX_op_qemu_ld_i64;
     tcg_add_param_i64(val);
     tcg_add_param_tl(addr);
+    *tcg_ctx.gen_opparam_ptr++ = memop;
     *tcg_ctx.gen_opparam_ptr++ = idx;
 }
 
@@ -1080,22 +997,10 @@ void tcg_gen_qemu_st_i64(TCGv_i64 val, TCGv addr, TCGArg idx, TCGMemOp memop)
     }
 #endif
 
-    if (TCG_TARGET_HAS_new_ldst) {
-        *tcg_ctx.gen_opc_ptr++ = INDEX_op_qemu_st_i64;
-        tcg_add_param_i64(val);
-        tcg_add_param_tl(addr);
-        *tcg_ctx.gen_opparam_ptr++ = memop;
-        *tcg_ctx.gen_opparam_ptr++ = idx;
-        return;
-    }
-
-    /* The old opcodes only support target-endian memory operations.  */
-    assert((memop & MO_BSWAP) == MO_TE || (memop & MO_SIZE) == MO_8);
-    assert(old_st_opc[memop & MO_SIZE] != 0);
-
-    *tcg_ctx.gen_opc_ptr++ = old_st_opc[memop & MO_SIZE];
+    *tcg_ctx.gen_opc_ptr++ = INDEX_op_qemu_st_i64;
     tcg_add_param_i64(val);
     tcg_add_param_tl(addr);
+    *tcg_ctx.gen_opparam_ptr++ = memop;
     *tcg_ctx.gen_opparam_ptr++ = idx;
 }
 
diff --git a/tcg/tci/tcg-target.h b/tcg/tci/tcg-target.h
index 6319303a43..bd1e97468c 100644
--- a/tcg/tci/tcg-target.h
+++ b/tcg/tci/tcg-target.h
@@ -118,8 +118,6 @@
 #define TCG_TARGET_HAS_mulu2_i32        1
 #endif /* TCG_TARGET_REG_BITS == 64 */
 
-#define TCG_TARGET_HAS_new_ldst         1
-
 /* Number of registers available.
    For 32 bit hosts, we need more than 8 registers (call arguments). */
 /* #define TCG_TARGET_NB_REGS 8 */