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target/arm: Add cpu local variable to exception_return helper

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We already call env_archcpu() multiple times within the
exception_return helper function, and we're about to want to
add another use of the ARMCPU pointer. Add a local variable
cpu so we can call env_archcpu() just once.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Peter Maydell 2025-03-12 13:25:08 +00:00
parent 39ec3fc030
commit 44ab8c248d
1 changed files with 4 additions and 3 deletions
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7
target/arm/tcg/helper-a64.c
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@ -631,6 +631,7 @@ static void cpsr_write_from_spsr_elx(CPUARMState *env,
void HELPER(exception_return)(CPUARMState *env, uint64_t new_pc)
{
ARMCPU *cpu = env_archcpu(env);
int cur_el = arm_current_el(env);
unsigned int spsr_idx = aarch64_banked_spsr_index(cur_el);
uint32_t spsr = env->banked_spsr[spsr_idx];
@ -682,7 +683,7 @@ void HELPER(exception_return)(CPUARMState *env, uint64_t new_pc)
}
bql_lock();
arm_call_pre_el_change_hook(env_archcpu(env));
arm_call_pre_el_change_hook(cpu);
bql_unlock();
if (!return_to_aa64) {
@ -710,7 +711,7 @@ void HELPER(exception_return)(CPUARMState *env, uint64_t new_pc)
int tbii;
env->aarch64 = true;
spsr &= aarch64_pstate_valid_mask(&env_archcpu(env)->isar);
spsr &= aarch64_pstate_valid_mask(&cpu->isar);
pstate_write(env, spsr);
if (!arm_singlestep_active(env)) {
env->pstate &= ~PSTATE_SS;
@ -749,7 +750,7 @@ void HELPER(exception_return)(CPUARMState *env, uint64_t new_pc)
aarch64_sve_change_el(env, cur_el, new_el, return_to_aa64);
bql_lock();
arm_call_el_change_hook(env_archcpu(env));
arm_call_el_change_hook(cpu);
bql_unlock();
return;