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| author | Richard Henderson <richard.henderson@linaro.org> | 2018-05-11 22:02:42 -0700 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2018-06-11 11:43:11 +0200 |
| commit | cb4add334a5a8db263c20c33c5365be3868f8967 (patch) | |
| tree | 9f229ed8dcfcd4f34114319f91aececcfe2c4511 /target/m68k/translate.c | |
| parent | 0d2fa03dae4fbe185a082f361342b1e30aed4582 (diff) | |
| download | qemu-cb4add334a5a8db263c20c33c5365be3868f8967.zip qemu-cb4add334a5a8db263c20c33c5365be3868f8967.tar.gz qemu-cb4add334a5a8db263c20c33c5365be3868f8967.tar.bz2 | |
target/m68k: Use DISAS_NORETURN for exceptions
The raise_exception helper does not return. Do not generate
any code following that.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180512050250.12774-2-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'target/m68k/translate.c')
| -rw-r--r-- | target/m68k/translate.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/target/m68k/translate.c b/target/m68k/translate.c index 4b5dbdb..de1be58 100644 --- a/target/m68k/translate.c +++ b/target/m68k/translate.c @@ -291,18 +291,18 @@ static void gen_jmp(DisasContext *s, TCGv dest) s->is_jmp = DISAS_JUMP; } -static void gen_raise_exception(int nr) +static void gen_exception(DisasContext *s, uint32_t dest, int nr) { - TCGv_i32 tmp = tcg_const_i32(nr); + TCGv_i32 tmp; + update_cc_op(s); + tcg_gen_movi_i32(QREG_PC, dest); + + tmp = tcg_const_i32(nr); gen_helper_raise_exception(cpu_env, tmp); tcg_temp_free_i32(tmp); -} -static void gen_exception(DisasContext *s, uint32_t where, int nr) -{ - gen_jmp_im(s, where); - gen_raise_exception(nr); + s->is_jmp = DISAS_NORETURN; } static inline void gen_addr_fault(DisasContext *s) @@ -6106,7 +6106,6 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) if (unlikely(cpu_breakpoint_test(cs, dc->pc, BP_ANY))) { gen_exception(dc, dc->pc, EXCP_DEBUG); - dc->is_jmp = DISAS_JUMP; /* The address covered by the breakpoint must be included in [tb->pc, tb->pc + tb->size) in order to for it to be properly cleared -- thus we increment the PC here so that @@ -6150,6 +6149,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) tcg_gen_exit_tb(NULL, 0); break; case DISAS_TB_JUMP: + case DISAS_NORETURN: /* nothing more to generate */ break; } |