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Skip register moves when the target and the source are the same 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4312 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2008-05-03 20:52:26 +00:00
parent 6f551262b3
commit 4d07272d80
1 changed files with 8 additions and 4 deletions
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4
tcg/tcg-op.h
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@ -164,6 +164,7 @@ static inline void tcg_gen_br(int label)
static inline void tcg_gen_mov_i32(TCGv ret, TCGv arg)
{
if (ret != arg)
tcg_gen_op2(INDEX_op_mov_i32, ret, arg);
}
@ -495,9 +496,11 @@ static inline void tcg_gen_remu_i32(TCGv ret, TCGv arg1, TCGv arg2)
static inline void tcg_gen_mov_i64(TCGv ret, TCGv arg)
{
if (ret != arg) {
tcg_gen_mov_i32(ret, arg);
tcg_gen_mov_i32(TCGV_HIGH(ret), TCGV_HIGH(arg));
}
}
static inline void tcg_gen_movi_i64(TCGv ret, int64_t arg)
{
@ -719,6 +722,7 @@ static inline void tcg_gen_remu_i64(TCGv ret, TCGv arg1, TCGv arg2)
static inline void tcg_gen_mov_i64(TCGv ret, TCGv arg)
{
if (ret != arg)
tcg_gen_op2(INDEX_op_mov_i64, ret, arg);
}