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authorPeter Maydell <peter.maydell@linaro.org>2014-02-20 10:35:54 +0000
committerPeter Maydell <peter.maydell@linaro.org>2014-02-20 10:35:54 +0000
commitea4571eb8768c39bf6cacd64fdcb6ef405b18b18 (patch)
tree9641fcba79c7755565a93e1ca338184be2f31f8d /target-arm
parentc4241c7d381086819131fba4fc8123848d83de8a (diff)
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>
Diffstat (limited to 'target-arm')
-rw-r--r--target-arm/translate-a64.c2
-rw-r--r--target-arm/translate.c4
2 files changed, 0 insertions, 6 deletions
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c
index e70d14fe3e..ef305e3fa2 100644
--- a/target-arm/translate-a64.c
+++ b/target-arm/translate-a64.c
@@ -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);
diff --git a/target-arm/translate.c b/target-arm/translate.c
index 0805053aaf..6ccf0ba482 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -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);