diff mbox series

[08/22] tcg/mips: Convert to tcg-target-constr.h

Message ID 20201223060204.576856-9-richard.henderson@linaro.org
State New
Headers show
Series tcg: backend constraints cleanup | expand

Commit Message

Richard Henderson Dec. 23, 2020, 6:01 a.m. UTC 
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 tcg/mips/tcg-target-constr.h | 31 ++++++++++++++++++++
 tcg/mips/tcg-target.h        |  1 +
 tcg/mips/tcg-target.c.inc    | 56 ------------------------------------
 3 files changed, 32 insertions(+), 56 deletions(-)
 create mode 100644 tcg/mips/tcg-target-constr.h

-- 
2.25.1
diff mbox series

Patch

diff --git a/tcg/mips/tcg-target-constr.h b/tcg/mips/tcg-target-constr.h
new file mode 100644
index 0000000000..22f6df0806
--- /dev/null
+++ b/tcg/mips/tcg-target-constr.h
@@ -0,0 +1,31 @@ 
+/* SPDX-License-Identifier: MIT */
+/*
+ * MIPS target-specific operand constaints.
+ * Copyright (c) 2020 Linaro
+ */
+
+#define ALL_GENERAL_REGS  0xffffffffu
+#define NOA0_REGS         (ALL_GENERAL_REGS & ~(1 << TCG_REG_A0))
+
+#ifdef CONFIG_SOFTMMU
+#define ALL_QLOAD_REGS \
+    (NOA0_REGS & ~((TCG_TARGET_REG_BITS < TARGET_LONG_BITS) << TCG_REG_A2))
+#define ALL_QSTORE_REGS \
+    (NOA0_REGS & ~(TCG_TARGET_REG_BITS < TARGET_LONG_BITS   \
+                   ? (1 << TCG_REG_A2) | (1 << TCG_REG_A3)  \
+                   : (1 << TCG_REG_A1)))
+#else
+#define ALL_QLOAD_REGS   NOA0_REGS
+#define ALL_QSTORE_REGS  NOA0_REGS
+#endif
+
+REGS('r', ALL_GENERAL_REGS)
+REGS('L', ALL_QLOAD_REGS)
+REGS('S', ALL_QSTORE_REGS)
+
+CONST('I', TCG_CT_CONST_U16)
+CONST('J', TCG_CT_CONST_S16)
+CONST('K', TCG_CT_CONST_P2M1)
+CONST('N', TCG_CT_CONST_N16)
+CONST('W', TCG_CT_CONST_WSZ)
+CONST('Z', TCG_CT_CONST_ZERO)
diff --git a/tcg/mips/tcg-target.h b/tcg/mips/tcg-target.h
index c6b091d849..f4a79bcad1 100644
--- a/tcg/mips/tcg-target.h
+++ b/tcg/mips/tcg-target.h
@@ -217,5 +217,6 @@  void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t);
 #ifdef CONFIG_SOFTMMU
 #define TCG_TARGET_NEED_LDST_LABELS
 #endif
+#define TCG_TARGET_CONSTR_H
 
 #endif
diff --git a/tcg/mips/tcg-target.c.inc b/tcg/mips/tcg-target.c.inc
index 41be574e89..d0b674582a 100644
--- a/tcg/mips/tcg-target.c.inc
+++ b/tcg/mips/tcg-target.c.inc
@@ -189,62 +189,6 @@  static inline bool is_p2m1(tcg_target_long val)
     return val && ((val + 1) & val) == 0;
 }
 
-/* parse target specific constraints */
-static const char *target_parse_constraint(TCGArgConstraint *ct,
-                                           const char *ct_str, TCGType type)
-{
-    switch(*ct_str++) {
-    case 'r':
-        ct->regs = 0xffffffff;
-        break;
-    case 'L': /* qemu_ld input arg constraint */
-        ct->regs = 0xffffffff;
-        tcg_regset_reset_reg(ct->regs, TCG_REG_A0);
-#if defined(CONFIG_SOFTMMU)
-        if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) {
-            tcg_regset_reset_reg(ct->regs, TCG_REG_A2);
-        }
-#endif
-        break;
-    case 'S': /* qemu_st constraint */
-        ct->regs = 0xffffffff;
-        tcg_regset_reset_reg(ct->regs, TCG_REG_A0);
-#if defined(CONFIG_SOFTMMU)
-        if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) {
-            tcg_regset_reset_reg(ct->regs, TCG_REG_A2);
-            tcg_regset_reset_reg(ct->regs, TCG_REG_A3);
-        } else {
-            tcg_regset_reset_reg(ct->regs, TCG_REG_A1);
-        }
-#endif
-        break;
-    case 'I':
-        ct->ct |= TCG_CT_CONST_U16;
-        break;
-    case 'J':
-        ct->ct |= TCG_CT_CONST_S16;
-        break;
-    case 'K':
-        ct->ct |= TCG_CT_CONST_P2M1;
-        break;
-    case 'N':
-        ct->ct |= TCG_CT_CONST_N16;
-        break;
-    case 'W':
-        ct->ct |= TCG_CT_CONST_WSZ;
-        break;
-    case 'Z':
-        /* We are cheating a bit here, using the fact that the register
-           ZERO is also the register number 0. Hence there is no need
-           to check for const_args in each instruction. */
-        ct->ct |= TCG_CT_CONST_ZERO;
-        break;
-    default:
-        return NULL;
-    }
-    return ct_str;
-}
-
 /* test if a constant matches the constraint */
 static inline int tcg_target_const_match(tcg_target_long val, TCGType type,
                                          const TCGArgConstraint *arg_ct)