From 4d07272d80c48e9a124c91a4f135839a65e7aeca Mon Sep 17 00:00:00 2001 From: blueswir1 Date: Sat, 3 May 2008 20:52:26 +0000 Subject: [PATCH] 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 --- tcg/tcg-op.h | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/tcg/tcg-op.h b/tcg/tcg-op.h index 5f66d7f969..c1ff8f4448 100644 --- a/tcg/tcg-op.h +++ b/tcg/tcg-op.h @@ -164,7 +164,8 @@ static inline void tcg_gen_br(int label) static inline void tcg_gen_mov_i32(TCGv ret, TCGv arg) { - tcg_gen_op2(INDEX_op_mov_i32, ret, arg); + if (ret != arg) + tcg_gen_op2(INDEX_op_mov_i32, ret, arg); } static inline void tcg_gen_movi_i32(TCGv ret, int32_t arg) @@ -495,8 +496,10 @@ static inline void tcg_gen_remu_i32(TCGv ret, TCGv arg1, TCGv arg2) static inline void tcg_gen_mov_i64(TCGv ret, TCGv arg) { - tcg_gen_mov_i32(ret, arg); - tcg_gen_mov_i32(TCGV_HIGH(ret), TCGV_HIGH(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) @@ -719,7 +722,8 @@ static inline void tcg_gen_remu_i64(TCGv ret, TCGv arg1, TCGv arg2) static inline void tcg_gen_mov_i64(TCGv ret, TCGv arg) { - tcg_gen_op2(INDEX_op_mov_i64, ret, arg); + if (ret != arg) + tcg_gen_op2(INDEX_op_mov_i64, ret, arg); } static inline void tcg_gen_movi_i64(TCGv ret, int64_t arg) -- 2.11.0