qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: Richard Henderson <richard.henderson@linaro.org>
Subject: [PULL 26/37] target/i386: Remove MemOp argument to gen_op_j*_ecx
Date: Tue, 11 Oct 2022 12:26:49 +0200	[thread overview]
Message-ID: <20221011102700.319178-27-pbonzini@redhat.com> (raw)
In-Reply-To: <20221011102700.319178-1-pbonzini@redhat.com>

From: Richard Henderson <richard.henderson@linaro.org>

These functions are always passed aflag, so we might as well
read it from DisasContext directly.  While we're at it, use
a common subroutine for these two functions.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221001140935.465607-22-richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/translate.c | 31 ++++++++++++++++---------------
 1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index cf23ae6e5e..9294f12f66 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -676,20 +676,21 @@ static void gen_exts(MemOp ot, TCGv reg)
     gen_ext_tl(reg, reg, ot, true);
 }
 
-static inline
-void gen_op_jnz_ecx(DisasContext *s, MemOp size, TCGLabel *label1)
+static void gen_op_j_ecx(DisasContext *s, TCGCond cond, TCGLabel *label1)
 {
     tcg_gen_mov_tl(s->tmp0, cpu_regs[R_ECX]);
-    gen_extu(size, s->tmp0);
-    tcg_gen_brcondi_tl(TCG_COND_NE, s->tmp0, 0, label1);
+    gen_extu(s->aflag, s->tmp0);
+    tcg_gen_brcondi_tl(cond, s->tmp0, 0, label1);
 }
 
-static inline
-void gen_op_jz_ecx(DisasContext *s, MemOp size, TCGLabel *label1)
+static inline void gen_op_jz_ecx(DisasContext *s, TCGLabel *label1)
 {
-    tcg_gen_mov_tl(s->tmp0, cpu_regs[R_ECX]);
-    gen_extu(size, s->tmp0);
-    tcg_gen_brcondi_tl(TCG_COND_EQ, s->tmp0, 0, label1);
+    gen_op_j_ecx(s, TCG_COND_EQ, label1);
+}
+
+static inline void gen_op_jnz_ecx(DisasContext *s, TCGLabel *label1)
+{
+    gen_op_j_ecx(s, TCG_COND_NE, label1);
 }
 
 static void gen_helper_in_func(MemOp ot, TCGv v, TCGv_i32 n)
@@ -1183,7 +1184,7 @@ static TCGLabel *gen_jz_ecx_string(DisasContext *s)
 {
     TCGLabel *l1 = gen_new_label();
     TCGLabel *l2 = gen_new_label();
-    gen_op_jnz_ecx(s, s->aflag, l1);
+    gen_op_jnz_ecx(s, l1);
     gen_set_label(l2);
     gen_jmp_rel_csize(s, 0, 1);
     gen_set_label(l1);
@@ -1286,7 +1287,7 @@ static void gen_repz(DisasContext *s, MemOp ot,
      * before rep string_insn
      */
     if (s->repz_opt) {
-        gen_op_jz_ecx(s, s->aflag, l2);
+        gen_op_jz_ecx(s, l2);
     }
     gen_jmp_rel_csize(s, -cur_insn_len(s), 0);
 }
@@ -1306,7 +1307,7 @@ static void gen_repz2(DisasContext *s, MemOp ot, int nz,
     gen_update_cc_op(s);
     gen_jcc1(s, (JCC_Z << 1) | (nz ^ 1), l2);
     if (s->repz_opt) {
-        gen_op_jz_ecx(s, s->aflag, l2);
+        gen_op_jz_ecx(s, l2);
     }
     gen_jmp_rel_csize(s, -cur_insn_len(s), 0);
 }
@@ -7397,16 +7398,16 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
             case 0: /* loopnz */
             case 1: /* loopz */
                 gen_op_add_reg_im(s, s->aflag, R_ECX, -1);
-                gen_op_jz_ecx(s, s->aflag, l2);
+                gen_op_jz_ecx(s, l2);
                 gen_jcc1(s, (JCC_Z << 1) | (b ^ 1), l1);
                 break;
             case 2: /* loop */
                 gen_op_add_reg_im(s, s->aflag, R_ECX, -1);
-                gen_op_jnz_ecx(s, s->aflag, l1);
+                gen_op_jnz_ecx(s, l1);
                 break;
             default:
             case 3: /* jcxz */
-                gen_op_jz_ecx(s, s->aflag, l1);
+                gen_op_jz_ecx(s, l1);
                 break;
             }
 
-- 
2.37.3



  parent reply	other threads:[~2022-10-11 11:14 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-11 10:26 [PULL 00/37] SCSI, i386 patches for 2022-10-11 Paolo Bonzini
2022-10-11 10:26 ` [PULL 01/37] scsi-disk: support setting CD-ROM block size via device options Paolo Bonzini
2022-10-11 10:26 ` [PULL 02/37] i386: kvm: extend kvm_{get, put}_vcpu_events to support pending triple fault Paolo Bonzini
2022-10-11 10:26 ` [PULL 03/37] kvm: allow target-specific accelerator properties Paolo Bonzini
2022-10-11 10:26 ` [PULL 04/37] kvm: expose struct KVMState Paolo Bonzini
2022-10-11 10:26 ` [PULL 05/37] i386: add notify VM exit support Paolo Bonzini
2022-10-11 10:26 ` [PULL 06/37] target/i386: Remove pc_start Paolo Bonzini
2022-10-11 10:26 ` [PULL 07/37] target/i386: Return bool from disas_insn Paolo Bonzini
2022-10-11 10:26 ` [PULL 08/37] target/i386: Remove cur_eip argument to gen_exception Paolo Bonzini
2022-10-11 10:26 ` [PULL 09/37] target/i386: Remove cur_eip, next_eip arguments to gen_interrupt Paolo Bonzini
2022-10-11 10:26 ` [PULL 10/37] target/i386: Create gen_update_eip_cur Paolo Bonzini
2022-10-11 10:26 ` [PULL 11/37] target/i386: Create gen_update_eip_next Paolo Bonzini
2022-10-11 10:26 ` [PULL 12/37] target/i386: Introduce DISAS_EOB* Paolo Bonzini
2022-10-11 10:26 ` [PULL 13/37] target/i386: Use DISAS_EOB* in gen_movl_seg_T0 Paolo Bonzini
2022-10-11 10:26 ` [PULL 14/37] target/i386: Use DISAS_EOB_NEXT Paolo Bonzini
2022-10-11 10:26 ` [PULL 15/37] target/i386: USe DISAS_EOB_ONLY Paolo Bonzini
2022-10-11 10:26 ` [PULL 16/37] target/i386: Create cur_insn_len, cur_insn_len_i32 Paolo Bonzini
2022-10-11 10:26 ` [PULL 17/37] target/i386: Remove cur_eip, next_eip arguments to gen_repz* Paolo Bonzini
2022-10-11 10:26 ` [PULL 18/37] target/i386: Introduce DISAS_JUMP Paolo Bonzini
2022-10-11 10:26 ` [PULL 19/37] target/i386: Truncate values for lcall_real to i32 Paolo Bonzini
2022-10-11 10:26 ` [PULL 20/37] target/i386: Create eip_next_* Paolo Bonzini
2022-10-11 10:26 ` [PULL 21/37] target/i386: Use DISAS_TOO_MANY to exit after gen_io_start Paolo Bonzini
2022-10-11 10:26 ` [PULL 22/37] target/i386: Create gen_jmp_rel Paolo Bonzini
2022-10-11 10:26 ` [PULL 23/37] target/i386: Use gen_jmp_rel for loop, repz, jecxz insns Paolo Bonzini
2022-10-11 10:26 ` [PULL 24/37] target/i386: Use gen_jmp_rel for gen_jcc Paolo Bonzini
2022-10-11 10:26 ` [PULL 25/37] target/i386: Use gen_jmp_rel for DISAS_TOO_MANY Paolo Bonzini
2022-10-11 10:26 ` Paolo Bonzini [this message]
2022-10-11 10:26 ` [PULL 27/37] target/i386: Merge gen_jmp_tb and gen_goto_tb into gen_jmp_rel Paolo Bonzini
2022-10-11 10:26 ` [PULL 28/37] target/i386: Create eip_cur_tl Paolo Bonzini
2022-10-11 10:26 ` [PULL 29/37] target/i386: Add cpu_eip Paolo Bonzini
2022-10-11 10:26 ` [PULL 30/37] target/i386: Inline gen_jmp_im Paolo Bonzini
2022-10-11 10:26 ` [PULL 31/37] target/i386: Enable TARGET_TB_PCREL Paolo Bonzini
2022-10-11 10:26 ` [PULL 32/37] x86: Implement MSR_CORE_THREAD_COUNT MSR Paolo Bonzini
2022-10-11 10:26 ` [PULL 33/37] i386: kvm: Add support for MSR filtering Paolo Bonzini
2022-10-11 10:26 ` [PULL 34/37] KVM: x86: Implement MSR_CORE_THREAD_COUNT MSR Paolo Bonzini
2022-10-11 10:26 ` [PULL 35/37] linux-user: i386/signal: move fpstate at the end of the 32-bit frames Paolo Bonzini
2022-10-11 10:26 ` [PULL 36/37] linux-user: i386/signal: support FXSAVE fpstate on 32-bit emulation Paolo Bonzini
2022-10-11 10:27 ` [PULL 37/37] linux-user: i386/signal: support XSAVE/XRSTOR for signal frame fpstate Paolo Bonzini
2022-10-13 20:29 ` [PULL 00/37] SCSI, i386 patches for 2022-10-11 Stefan Hajnoczi

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20221011102700.319178-27-pbonzini@redhat.com \
    --to=pbonzini@redhat.com \
    --cc=qemu-devel@nongnu.org \
    --cc=richard.henderson@linaro.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).