ShuriZma
/
xqemu
mirror of https://github.com/xqemu/xqemu.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

target-arm: Remove unnecessary code now read/write fns can't fail 

Now that cpreg read and write functions can't fail and throw an
exception, we can remove the code from the translator that synchronises
the guest PC in case an exception is thrown.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2014-02-20 10:35:54 +00:00
parent c4241c7d38
commit ea4571eb87
2 changed files with 0 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
target-arm/translate-a64.c
View File

@ -1231,7 +1231,6 @@ static void handle_sys(DisasContext *s, uint32_t insn, bool isread,
tcg_gen_movi_i64(tcg_rt, ri->resetvalue);
} else if (ri->readfn) {
TCGv_ptr tmpptr;
gen_a64_set_pc_im(s->pc - 4);
tmpptr = tcg_const_ptr(ri);
gen_helper_get_cp_reg64(tcg_rt, cpu_env, tmpptr);
tcg_temp_free_ptr(tmpptr);
@ -1244,7 +1243,6 @@ static void handle_sys(DisasContext *s, uint32_t insn, bool isread,
return;
} else if (ri->writefn) {
TCGv_ptr tmpptr;
gen_a64_set_pc_im(s->pc - 4);
tmpptr = tcg_const_ptr(ri);
gen_helper_set_cp_reg64(cpu_env, tmpptr, tcg_rt);
tcg_temp_free_ptr(tmpptr);

4
target-arm/translate.c
View File

@ -6876,7 +6876,6 @@ static int disas_coproc_insn(CPUARMState * env, DisasContext *s, uint32_t insn)
tmp64 = tcg_const_i64(ri->resetvalue);
} else if (ri->readfn) {
TCGv_ptr tmpptr;
gen_set_pc_im(s, s->pc);
tmp64 = tcg_temp_new_i64();
tmpptr = tcg_const_ptr(ri);
gen_helper_get_cp_reg64(tmp64, cpu_env, tmpptr);
@ -6899,7 +6898,6 @@ static int disas_coproc_insn(CPUARMState * env, DisasContext *s, uint32_t insn)
tmp = tcg_const_i32(ri->resetvalue);
} else if (ri->readfn) {
TCGv_ptr tmpptr;
gen_set_pc_im(s, s->pc);
tmp = tcg_temp_new_i32();
tmpptr = tcg_const_ptr(ri);
gen_helper_get_cp_reg(tmp, cpu_env, tmpptr);
@ -6934,7 +6932,6 @@ static int disas_coproc_insn(CPUARMState * env, DisasContext *s, uint32_t insn)
tcg_temp_free_i32(tmphi);
if (ri->writefn) {
TCGv_ptr tmpptr = tcg_const_ptr(ri);
gen_set_pc_im(s, s->pc);
gen_helper_set_cp_reg64(cpu_env, tmpptr, tmp64);
tcg_temp_free_ptr(tmpptr);
} else {
@ -6945,7 +6942,6 @@ static int disas_coproc_insn(CPUARMState * env, DisasContext *s, uint32_t insn)
if (ri->writefn) {
TCGv_i32 tmp;
TCGv_ptr tmpptr;
gen_set_pc_im(s, s->pc);
tmp = load_reg(s, rt);
tmpptr = tcg_const_ptr(ri);
gen_helper_set_cp_reg(cpu_env, tmpptr, tmp);