haraldwolff/qemu-patch-raspberry4
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

target/arm: Hoist store to cs_base in cpu_get_tb_cpu_state

Browse source 
By performing this store early, we avoid having to save and restore
the register holding the address around any function calls.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20191023150057.25731-15-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2019-10-23 11:00:47 -04:00 committed by Peter Maydell
parent 164690b29f
commit 9b253fe554
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
target/arm/helper.c
View file

@ -11225,6 +11225,7 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
{
uint32_t flags, pstate_for_ss;
*cs_base = 0;
flags = rebuild_hflags_internal(env);
if (is_a64(env)) {
@ -11298,7 +11299,6 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
}
*pflags = flags;
*cs_base = 0;
}
#ifdef TARGET_AARCH64