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Re: [Qemu-devel] [PATCH for-4.0 v2 10/37] tcg/aarch64: Add constraints f
From: |
Alex Bennée |
Subject: |
Re: [Qemu-devel] [PATCH for-4.0 v2 10/37] tcg/aarch64: Add constraints for x0, x1, x2 |
Date: |
Fri, 30 Nov 2018 17:25:46 +0000 |
User-agent: |
mu4e 1.1.0; emacs 26.1.90 |
Richard Henderson <address@hidden> writes:
> These are function call arguments that we will need soon.
>
> Signed-off-by: Richard Henderson <address@hidden>
Reviewed-by: Alex Bennée <address@hidden>
> ---
> tcg/aarch64/tcg-target.inc.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c
> index 30091f6a69..148de0b7f2 100644
> --- a/tcg/aarch64/tcg-target.inc.c
> +++ b/tcg/aarch64/tcg-target.inc.c
> @@ -125,6 +125,18 @@ static const char
> *target_parse_constraint(TCGArgConstraint *ct,
> const char *ct_str, TCGType type)
> {
> switch (*ct_str++) {
> + case 'a': /* x0 */
> + ct->ct |= TCG_CT_REG;
> + tcg_regset_set_reg(ct->u.regs, TCG_REG_X0);
> + break;
> + case 'b': /* x1 */
> + ct->ct |= TCG_CT_REG;
> + tcg_regset_set_reg(ct->u.regs, TCG_REG_X1);
> + break;
> + case 'c': /* x2 */
> + ct->ct |= TCG_CT_REG;
> + tcg_regset_set_reg(ct->u.regs, TCG_REG_X2);
> + break;
> case 'r': /* general registers */
> ct->ct |= TCG_CT_REG;
> ct->u.regs |= 0xffffffffu;
--
Alex Bennée
- [Qemu-devel] [PATCH for-4.0 v2 06/37] tcg/i386: Return a base register from tcg_out_tlb_load, (continued)
- [Qemu-devel] [PATCH for-4.0 v2 06/37] tcg/i386: Return a base register from tcg_out_tlb_load, Richard Henderson, 2018/11/23
- [Qemu-devel] [PATCH for-4.0 v2 03/37] tcg: Return success from patch_reloc, Richard Henderson, 2018/11/23
- [Qemu-devel] [PATCH for-4.0 v2 05/37] tcg/i386: Add constraints for r8 and r9, Richard Henderson, 2018/11/23
- [Qemu-devel] [PATCH for-4.0 v2 04/37] tcg: Add TCG_TARGET_NEED_LDST_OOL_LABELS, Richard Henderson, 2018/11/23
- [Qemu-devel] [PATCH for-4.0 v2 10/37] tcg/aarch64: Add constraints for x0, x1, x2, Richard Henderson, 2018/11/23
- Re: [Qemu-devel] [PATCH for-4.0 v2 10/37] tcg/aarch64: Add constraints for x0, x1, x2,
Alex Bennée <=
- [Qemu-devel] [PATCH for-4.0 v2 11/37] tcg/aarch64: Parameterize the temps for tcg_out_tlb_read, Richard Henderson, 2018/11/23
- [Qemu-devel] [PATCH for-4.0 v2 12/37] tcg/aarch64: Parameterize the temp for tcg_out_goto_long, Richard Henderson, 2018/11/23
- [Qemu-devel] [PATCH for-4.0 v2 13/37] tcg/aarch64: Use B not BL for tcg_out_goto_long, Richard Henderson, 2018/11/23
- [Qemu-devel] [PATCH for-4.0 v2 09/37] tcg/i386: Use TCG_TARGET_NEED_LDST_OOL_LABELS, Richard Henderson, 2018/11/23
- [Qemu-devel] [PATCH for-4.0 v2 08/37] tcg/i386: Force qemu_ld/st arguments into fixed registers, Richard Henderson, 2018/11/23