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gen-icount: fold exitreq_label into TCGContext 

Groundwork for supporting multiple TCG contexts.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Emilio G. Cota 2017-07-04 13:54:21 -04:00 committed by Richard Henderson
parent b1311c4acf
commit 26689780f8
2 changed files with 5 additions and 4 deletions
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7
include/exec/gen-icount.h
View File

@ -6,13 +6,12 @@
/* Helpers for instruction counting code generation. */
static int icount_start_insn_idx;
static TCGLabel *exitreq_label;
static inline void gen_tb_start(TranslationBlock *tb)
{
TCGv_i32 count, imm;
exitreq_label = gen_new_label();
tcg_ctx->exitreq_label = gen_new_label();
if (tb_cflags(tb) & CF_USE_ICOUNT) {
count = tcg_temp_local_new_i32();
} else {
@ -34,7 +33,7 @@ static inline void gen_tb_start(TranslationBlock *tb)
tcg_temp_free_i32(imm);
}
tcg_gen_brcondi_i32(TCG_COND_LT, count, 0, exitreq_label);
tcg_gen_brcondi_i32(TCG_COND_LT, count, 0, tcg_ctx->exitreq_label);
if (tb_cflags(tb) & CF_USE_ICOUNT) {
tcg_gen_st16_i32(count, tcg_ctx->tcg_env,
@ -52,7 +51,7 @@ static inline void gen_tb_end(TranslationBlock *tb, int num_insns)
tcg_set_insn_param(icount_start_insn_idx, 1, num_insns);
}
gen_set_label(exitreq_label);
gen_set_label(tcg_ctx->exitreq_label);
tcg_gen_exit_tb((uintptr_t)tb + TB_EXIT_REQUESTED);
/* Terminate the linked list. */

2
tcg/tcg.h
View File

@ -675,6 +675,8 @@ struct TCGContext {
struct TCGLabelPoolData *pool_labels;
#endif
TCGLabel *exitreq_label;
TCGTempSet free_temps[TCG_TYPE_COUNT * 2];
TCGTemp temps[TCG_MAX_TEMPS]; /* globals first, temps after */