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[Qemu-devel] [PATCH 13/23] target-sparc: Use DisasCompare and movcond in
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 13/23] target-sparc: Use DisasCompare and movcond in MOVCC |
Date: |
Fri, 5 Oct 2012 16:55:00 -0700 |
Signed-off-by: Richard Henderson <address@hidden>
---
target-sparc/translate.c | 44 ++++++++++++++++++++------------------------
1 file changed, 20 insertions(+), 24 deletions(-)
diff --git a/target-sparc/translate.c b/target-sparc/translate.c
index a7cd677..6c9be29 100644
--- a/target-sparc/translate.c
+++ b/target-sparc/translate.c
@@ -4075,38 +4075,34 @@ static void disas_sparc_insn(DisasContext * dc,
unsigned int insn)
{
int cc = GET_FIELD_SP(insn, 11, 12);
int cond = GET_FIELD_SP(insn, 14, 17);
- TCGv r_cond;
- int l1;
+ DisasCompare cmp;
- r_cond = tcg_temp_new();
if (insn & (1 << 18)) {
- if (cc == 0)
- gen_cond(r_cond, 0, cond, dc);
- else if (cc == 2)
- gen_cond(r_cond, 1, cond, dc);
- else
+ if (cc == 0) {
+ gen_compare(&cmp, 0, cond, dc);
+ } else if (cc == 2) {
+ gen_compare(&cmp, 1, cond, dc);
+ } else {
goto illegal_insn;
+ }
} else {
- gen_fcond(r_cond, cc, cond);
+ gen_fcompare(&cmp, cc, cond);
}
- l1 = gen_new_label();
-
- tcg_gen_brcondi_tl(TCG_COND_EQ, r_cond, 0, l1);
- if (IS_IMM) { /* immediate */
- TCGv r_const;
-
+ /* The get_src2 above loaded the normal 13-bit
+ immediate field, not the 11-bit field we have
+ in movcc. But it did handle the reg case. */
+ if (IS_IMM) {
simm = GET_FIELD_SPs(insn, 0, 10);
- r_const = tcg_const_tl(simm);
- gen_movl_TN_reg(rd, r_const);
- tcg_temp_free(r_const);
- } else {
- rs2 = GET_FIELD_SP(insn, 0, 4);
- gen_movl_reg_TN(rs2, cpu_tmp0);
- gen_movl_TN_reg(rd, cpu_tmp0);
+ tcg_gen_movi_tl(cpu_src2, simm);
}
- gen_set_label(l1);
- tcg_temp_free(r_cond);
+
+ gen_movl_reg_TN(rd, cpu_dst);
+ tcg_gen_movcond_tl(cmp.cond, cpu_dst,
+ cmp.c1, cmp.c2,
+ cpu_src2, cpu_dst);
+ free_compare(&cmp);
+ gen_movl_TN_reg(rd, cpu_dst);
break;
}
case 0x2d: /* V9 sdivx */
--
1.7.11.4
- [Qemu-devel] [PATCH 03/23] target-sparc: Tidy do_branch interfaces, (continued)
- [Qemu-devel] [PATCH 03/23] target-sparc: Tidy do_branch interfaces, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 07/23] target-sparc: Tidy gen_mov_pc_npc interface, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 05/23] target-sparc: Tidy gen_trap_ifnofpu interface, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 10/23] target-sparc: Introduce DisasCompare and functions to generate it, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 06/23] target-sparc: Tidy save_state interface, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 08/23] target-sparc: Tidy save_npc interface, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 09/23] target-sparc: Tidy gen_generic_branch interface, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 17/23] target-sparc: Tidy Tcc, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 12/23] target-sparc: Use DisasCompare and movcond in FMOVR, FMOVCC, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 11/23] target-sparc: Use DisasCompare in Tcc, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 13/23] target-sparc: Use DisasCompare and movcond in MOVCC,
Richard Henderson <=
- [Qemu-devel] [PATCH 18/23] target-sparc: Move taddcctv and tsubcctv out of line, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 04/23] target-sparc: Tidy flush_cond interface, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 16/23] target-sparc: Move sdivx and udivx out of line, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 14/23] target-sparc: Use DisasCompare and movcond in MOVR, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 15/23] target-sparc: Use movcond in gen_generic_branch, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 21/23] target-sparc: Cleanup "global" temporary allocation, Richard Henderson, 2012/10/05
- [Qemu-devel] [PATCH 23/23] target-sparc: Optimize conditionals using SUBCC, Richard Henderson, 2012/10/05