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tcg: Hoist max_insns computation to tb_gen_code

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In order to handle TB's that translate to too much code, we
need to place the control of the length of the translation
in the hands of the code gen master loop.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2019-04-15 20:54:54 -10:00
parent 464c2969d5
commit 8b86d6d258
25 changed files with 56 additions and 127 deletions
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10
target/microblaze/translate.c
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@ -1601,7 +1601,7 @@ static inline void decode(DisasContext *dc, uint32_t ir)
}
/* generate intermediate code for basic block 'tb'. */
void gen_intermediate_code(CPUState *cs, struct TranslationBlock *tb)
void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns)
{
CPUMBState *env = cs->env_ptr;
MicroBlazeCPU *cpu = mb_env_get_cpu(env);
@ -1611,7 +1611,6 @@ void gen_intermediate_code(CPUState *cs, struct TranslationBlock *tb)
uint32_t page_start, org_flags;
uint32_t npc;
int num_insns;
int max_insns;
pc_start = tb->pc;
dc->cpu = cpu;
@ -1635,13 +1634,6 @@ void gen_intermediate_code(CPUState *cs, struct TranslationBlock *tb)
page_start = pc_start & TARGET_PAGE_MASK;
num_insns = 0;
max_insns = tb_cflags(tb) & CF_COUNT_MASK;
if (max_insns == 0) {
max_insns = CF_COUNT_MASK;
}
if (max_insns > TCG_MAX_INSNS) {
max_insns = TCG_MAX_INSNS;
}
gen_tb_start(tb);
do