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authorbellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>2004-02-22 13:40:57 +0000
committerbellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>2004-02-22 13:40:57 +0000
commit537730b956572a9e32adfa2e18164e8234594c08 (patch)
tree8ef1237f22efc3c69be70e8e9f3cc0b917704344 /target-arm
parentedf779ffccc836661a7b654d320571a6c220caea (diff)
downloadqemu-537730b956572a9e32adfa2e18164e8234594c08.zip
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zero offset optimisation
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@635 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-arm')
-rw-r--r--target-arm/translate.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c
index 50fe8aa..3efd55e 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -279,7 +279,8 @@ static inline void gen_add_data_offset(DisasContext *s, unsigned int insn)
val = insn & 0xfff;
if (!(insn & (1 << 23)))
val = -val;
- gen_op_addl_T1_im(val);
+ if (val != 0)
+ gen_op_addl_T1_im(val);
} else {
/* shift/register */
rm = (insn) & 0xf;
@@ -304,7 +305,8 @@ static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn)
val = (insn & 0xf) | ((insn >> 4) & 0xf0);
if (!(insn & (1 << 23)))
val = -val;
- gen_op_addl_T1_im(val);
+ if (val != 0)
+ gen_op_addl_T1_im(val);
} else {
/* register */
rm = (insn) & 0xf;