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Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20150212' into staging

Convert to linked list.

# gpg: Signature made Fri 13 Feb 2015 05:40:41 GMT using RSA key ID 4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"

* remotes/rth/tags/pull-tcg-20150212:
  tcg: Remove unused opcodes
  tcg: Implement insert_op_before
  tcg: Remove opcodes instead of noping them out
  tcg: Put opcodes in a linked list
  tcg: Introduce tcg_op_buf_count and tcg_op_buf_full
  tcg: Move emit of INDEX_op_end into gen_tb_end
  tcg: Reduce ifdefs in tcg-op.c
  tcg: Move some opcode generation functions out of line

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2015-02-13 11:44:49 +00:00
commit cd2d554127
27 changed files with 2736 additions and 2822 deletions
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22
include/exec/gen-icount.h
View file

@ -11,8 +11,8 @@ static int exitreq_label;
static inline void gen_tb_start(TranslationBlock *tb)
{
TCGv_i32 count;
TCGv_i32 flag;
TCGv_i32 count, flag, imm;
int i;
exitreq_label = gen_new_label();
flag = tcg_temp_new_i32();
@ -21,16 +21,25 @@ static inline void gen_tb_start(TranslationBlock *tb)
tcg_gen_brcondi_i32(TCG_COND_NE, flag, 0, exitreq_label);
tcg_temp_free_i32(flag);
if (!(tb->cflags & CF_USE_ICOUNT))
if (!(tb->cflags & CF_USE_ICOUNT)) {
return;
}
icount_label = gen_new_label();
count = tcg_temp_local_new_i32();
tcg_gen_ld_i32(count, cpu_env,
-ENV_OFFSET + offsetof(CPUState, icount_decr.u32));
imm = tcg_temp_new_i32();
tcg_gen_movi_i32(imm, 0xdeadbeef);
/* This is a horrid hack to allow fixing up the value later. */
icount_arg = tcg_ctx.gen_opparam_ptr + 1;
tcg_gen_subi_i32(count, count, 0xdeadbeef);
i = tcg_ctx.gen_last_op_idx;
i = tcg_ctx.gen_op_buf[i].args;
icount_arg = &tcg_ctx.gen_opparam_buf[i + 1];
tcg_gen_sub_i32(count, count, imm);
tcg_temp_free_i32(imm);
tcg_gen_brcondi_i32(TCG_COND_LT, count, 0, icount_label);
tcg_gen_st16_i32(count, cpu_env,
@ -48,6 +57,9 @@ static void gen_tb_end(TranslationBlock *tb, int num_insns)
gen_set_label(icount_label);
tcg_gen_exit_tb((uintptr_t)tb + TB_EXIT_ICOUNT_EXPIRED);
}
/* Terminate the linked list. */
tcg_ctx.gen_op_buf[tcg_ctx.gen_last_op_idx].next = -1;
}
static inline void gen_io_start(void)