tcg/riscv: Split out target constraints to tcg-target-con-str.h

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 13 insertions, 39 deletions

diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc
index 71c0badc02..20d5b5ef01 100644
--- a/tcg/riscv/tcg-target.c.inc
+++ b/tcg/riscv/tcg-target.c.inc
@@ -122,6 +122,19 @@ static const int tcg_target_call_oarg_regs[] = {
 #define TCG_CT_CONST_N12   0x400
 #define TCG_CT_CONST_M12   0x800
 
+#define ALL_GENERAL_REGS      MAKE_64BIT_MASK(0, 32)
+/*
+ * For softmmu, we need to avoid conflicts with the first 5
+ * argument registers to call the helper.  Some of these are
+ * also used for the tlb lookup.
+ */
+#ifdef CONFIG_SOFTMMU
+#define SOFTMMU_RESERVE_REGS  MAKE_64BIT_MASK(TCG_REG_A0, 5)
+#else
+#define SOFTMMU_RESERVE_REGS  0
+#endif
+
+
 static inline tcg_target_long sextreg(tcg_target_long val, int pos, int len)
 {
     if (TCG_TARGET_REG_BITS == 32) {
@@ -131,45 +144,6 @@ static inline tcg_target_long sextreg(tcg_target_long val, int pos, int len)
     }
 }
 
-/* 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/qemu_st constraint */
-        ct->regs = 0xffffffff;
-        /* qemu_ld/qemu_st uses TCG_REG_TMP0 */
-#if defined(CONFIG_SOFTMMU)
-        tcg_regset_reset_reg(ct->regs, tcg_target_call_iarg_regs[0]);
-        tcg_regset_reset_reg(ct->regs, tcg_target_call_iarg_regs[1]);
-        tcg_regset_reset_reg(ct->regs, tcg_target_call_iarg_regs[2]);
-        tcg_regset_reset_reg(ct->regs, tcg_target_call_iarg_regs[3]);
-        tcg_regset_reset_reg(ct->regs, tcg_target_call_iarg_regs[4]);
-#endif
-        break;
-    case 'I':
-        ct->ct |= TCG_CT_CONST_S12;
-        break;
-    case 'N':
-        ct->ct |= TCG_CT_CONST_N12;
-        break;
-    case 'M':
-        ct->ct |= TCG_CT_CONST_M12;
-        break;
-    case 'Z':
-        /* we can use a zero immediate as a zero register argument. */
-        ct->ct |= TCG_CT_CONST_ZERO;
-        break;
-    default:
-        return NULL;
-    }
-    return ct_str;
-}
-
 /* test if a constant matches the constraint */
 static int tcg_target_const_match(tcg_target_long val, TCGType type,
                                   const TCGArgConstraint *arg_ct)