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tcg: Remove TCG_CT_REG

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This wasn't actually used for anything, really.  All variable
operands must accept registers, and which are indicated by the
set in TCGArgConstraint.regs.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-09-03 15:56:24 -07:00
parent 66792f90f1
commit 74a117906b
11 changed files with 4 additions and 49 deletions
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11
tcg/i386/tcg-target.c.inc
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@ -208,42 +208,33 @@ static const char *target_parse_constraint(TCGArgConstraint *ct,
{
switch(*ct_str++) {
case 'a':
ct->ct |= TCG_CT_REG;
tcg_regset_set_reg(ct->regs, TCG_REG_EAX);
break;
case 'b':
ct->ct |= TCG_CT_REG;
tcg_regset_set_reg(ct->regs, TCG_REG_EBX);
break;
case 'c':
ct->ct |= TCG_CT_REG;
tcg_regset_set_reg(ct->regs, TCG_REG_ECX);
break;
case 'd':
ct->ct |= TCG_CT_REG;
tcg_regset_set_reg(ct->regs, TCG_REG_EDX);
break;
case 'S':
ct->ct |= TCG_CT_REG;
tcg_regset_set_reg(ct->regs, TCG_REG_ESI);
break;
case 'D':
ct->ct |= TCG_CT_REG;
tcg_regset_set_reg(ct->regs, TCG_REG_EDI);
break;
case 'q':
/* A register that can be used as a byte operand. */
ct->ct |= TCG_CT_REG;
ct->regs = TCG_TARGET_REG_BITS == 64 ? 0xffff : 0xf;
break;
case 'Q':
/* A register with an addressable second byte (e.g. %ah). */
ct->ct |= TCG_CT_REG;
ct->regs = 0xf;
break;
case 'r':
/* A general register. */
ct->ct |= TCG_CT_REG;
ct->regs |= ALL_GENERAL_REGS;
break;
case 'W':
@ -252,13 +243,11 @@ static const char *target_parse_constraint(TCGArgConstraint *ct,
break;
case 'x':
/* A vector register. */
ct->ct |= TCG_CT_REG;
ct->regs |= ALL_VECTOR_REGS;
break;
/* qemu_ld/st address constraint */
case 'L':
ct->ct |= TCG_CT_REG;
ct->regs = TCG_TARGET_REG_BITS == 64 ? 0xffff : 0xff;
tcg_regset_reset_reg(ct->regs, TCG_REG_L0);
tcg_regset_reset_reg(ct->regs, TCG_REG_L1);