gwj / at91sam9263 · Commits

Commit 34151a20ea237dd21dc1e39a0c25d715ed39d989

Authored by bellard
1 parent c1c37968

small shift opts 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4525 c046a42c-6fe2-441c-8c8c-71466251a162
Inline Side-by-side
Showing 1 changed file with 30 additions and 6 deletions
tcg/tcg-op.h
  View file @34151a2
... ... @@ -404,7 +404,11 @@ static inline void tcg_gen_shl_i32(TCGv ret, TCGv arg1, TCGv arg2)
404 404  
405 405 static inline void tcg_gen_shli_i32(TCGv ret, TCGv arg1, int32_t arg2)
406 406 {
407   - tcg_gen_shl_i32(ret, arg1, tcg_const_i32(arg2));
  407 + if (arg2 == 0) {
  408 + tcg_gen_mov_i32(ret, arg1);
  409 + } else {
  410 + tcg_gen_shl_i32(ret, arg1, tcg_const_i32(arg2));
  411 + }
408 412 }
409 413  
410 414 static inline void tcg_gen_shr_i32(TCGv ret, TCGv arg1, TCGv arg2)
... ... @@ -414,7 +418,11 @@ static inline void tcg_gen_shr_i32(TCGv ret, TCGv arg1, TCGv arg2)
414 418  
415 419 static inline void tcg_gen_shri_i32(TCGv ret, TCGv arg1, int32_t arg2)
416 420 {
417   - tcg_gen_shr_i32(ret, arg1, tcg_const_i32(arg2));
  421 + if (arg2 == 0) {
  422 + tcg_gen_mov_i32(ret, arg1);
  423 + } else {
  424 + tcg_gen_shr_i32(ret, arg1, tcg_const_i32(arg2));
  425 + }
418 426 }
419 427  
420 428 static inline void tcg_gen_sar_i32(TCGv ret, TCGv arg1, TCGv arg2)
... ... @@ -424,7 +432,11 @@ static inline void tcg_gen_sar_i32(TCGv ret, TCGv arg1, TCGv arg2)
424 432  
425 433 static inline void tcg_gen_sari_i32(TCGv ret, TCGv arg1, int32_t arg2)
426 434 {
427   - tcg_gen_sar_i32(ret, arg1, tcg_const_i32(arg2));
  435 + if (arg2 == 0) {
  436 + tcg_gen_mov_i32(ret, arg1);
  437 + } else {
  438 + tcg_gen_sar_i32(ret, arg1, tcg_const_i32(arg2));
  439 + }
428 440 }
429 441  
430 442 static inline void tcg_gen_brcond_i32(int cond, TCGv arg1, TCGv arg2,
... ... @@ -862,7 +874,11 @@ static inline void tcg_gen_shl_i64(TCGv ret, TCGv arg1, TCGv arg2)
862 874  
863 875 static inline void tcg_gen_shli_i64(TCGv ret, TCGv arg1, int64_t arg2)
864 876 {
865   - tcg_gen_shl_i64(ret, arg1, tcg_const_i64(arg2));
  877 + if (arg2 == 0) {
  878 + tcg_gen_mov_i64(ret, arg1);
  879 + } else {
  880 + tcg_gen_shl_i64(ret, arg1, tcg_const_i64(arg2));
  881 + }
866 882 }
867 883  
868 884 static inline void tcg_gen_shr_i64(TCGv ret, TCGv arg1, TCGv arg2)
... ... @@ -872,7 +888,11 @@ static inline void tcg_gen_shr_i64(TCGv ret, TCGv arg1, TCGv arg2)
872 888  
873 889 static inline void tcg_gen_shri_i64(TCGv ret, TCGv arg1, int64_t arg2)
874 890 {
875   - tcg_gen_shr_i64(ret, arg1, tcg_const_i64(arg2));
  891 + if (arg2 == 0) {
  892 + tcg_gen_mov_i64(ret, arg1);
  893 + } else {
  894 + tcg_gen_shr_i64(ret, arg1, tcg_const_i64(arg2));
  895 + }
876 896 }
877 897  
878 898 static inline void tcg_gen_sar_i64(TCGv ret, TCGv arg1, TCGv arg2)
... ... @@ -882,7 +902,11 @@ static inline void tcg_gen_sar_i64(TCGv ret, TCGv arg1, TCGv arg2)
882 902  
883 903 static inline void tcg_gen_sari_i64(TCGv ret, TCGv arg1, int64_t arg2)
884 904 {
885   - tcg_gen_sar_i64(ret, arg1, tcg_const_i64(arg2));
  905 + if (arg2 == 0) {
  906 + tcg_gen_mov_i64(ret, arg1);
  907 + } else {
  908 + tcg_gen_sar_i64(ret, arg1, tcg_const_i64(arg2));
  909 + }
886 910 }
887 911  
888 912 static inline void tcg_gen_brcond_i64(int cond, TCGv arg1, TCGv arg2,
... ...