[Qemu-devel] [PATCH v5 14/17] target/arm: Hoist store to cs_base in cpu_get_tb_cpu_state

Richard Henderson posted 17 patches 6 years, 5 months ago
There is a newer version of this series
[Qemu-devel] [PATCH v5 14/17] target/arm: Hoist store to cs_base in cpu_get_tb_cpu_state
Posted by Richard Henderson 6 years, 5 months ago
By performing this store early, we avoid having to save and restore
the register holding the address around any function calls.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/helper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/arm/helper.c b/target/arm/helper.c
index 19bdb9b9d6..7a94495788 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -11187,6 +11187,7 @@ 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)) {
@@ -11260,7 +11261,6 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
     }
 
     *pflags = flags;
-    *cs_base = 0;
 }
 
 #ifdef TARGET_AARCH64
-- 
2.17.1