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| author | Wentong Wu <wentong.wu@intel.com> | 2020-07-13 14:36:10 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2020-07-13 14:36:10 +0100 |
| commit | 42928f2c9cd6185e3bda5e214f5c8f3603125ba9 (patch) | |
| tree | c0e1f313182d1a4341bdb6299f80cc8b018c1424 /target | |
| parent | 0b823cb07eade4e7e133cc09dfaccceec04cb6a2 (diff) | |
| download | qemu-42928f2c9cd6185e3bda5e214f5c8f3603125ba9.zip qemu-42928f2c9cd6185e3bda5e214f5c8f3603125ba9.tar.gz qemu-42928f2c9cd6185e3bda5e214f5c8f3603125ba9.tar.bz2 | |
target/nios2: add DISAS_NORETURN case for nothing more to generate
Add DISAS_NORETURN case for nothing more to generate because at runtime
execution will never return from some helper call. And at the same time
replace DISAS_UPDATE in t_gen_helper_raise_exception and gen_exception
with the newly added DISAS_NORETURN.
Signed-off-by: Wentong Wu <wentong.wu@intel.com>
Message-id: 20200710233433.19729-1-wentong.wu@intel.com
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target')
| -rw-r--r-- | target/nios2/translate.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/target/nios2/translate.c b/target/nios2/translate.c index 6c34cd3..00b591c 100644 --- a/target/nios2/translate.c +++ b/target/nios2/translate.c @@ -149,7 +149,7 @@ static void t_gen_helper_raise_exception(DisasContext *dc, tcg_gen_movi_tl(dc->cpu_R[R_PC], dc->pc); gen_helper_raise_exception(dc->cpu_env, tmp); tcg_temp_free_i32(tmp); - dc->is_jmp = DISAS_UPDATE; + dc->is_jmp = DISAS_NORETURN; } static bool use_goto_tb(DisasContext *dc, uint32_t dest) @@ -802,7 +802,7 @@ static void gen_exception(DisasContext *dc, uint32_t excp) tcg_gen_movi_tl(cpu_R[R_PC], dc->pc); gen_helper_raise_exception(cpu_env, tmp); tcg_temp_free_i32(tmp); - dc->is_jmp = DISAS_UPDATE; + dc->is_jmp = DISAS_NORETURN; } /* generate intermediate code for basic block 'tb'. */ @@ -877,6 +877,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns) tcg_gen_exit_tb(NULL, 0); break; + case DISAS_NORETURN: case DISAS_TB_JUMP: /* nothing more to generate */ break; |