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| author | edgar_igl | 2008-05-03 10:36:16 +0200 |
|---|---|---|
| committer | edgar_igl | 2008-05-03 10:36:16 +0200 |
| commit | 50cfa95cbd6d0ab896530f7af07a4d5e7539ddc0 (patch) | |
| tree | 55033efb01a23bc92f2cdd4ec983f4acdb7063c4 /target-cris | |
| parent | CRIS: Reduce the number of tb dependent flags. (diff) | |
| download | qemu-50cfa95cbd6d0ab896530f7af07a4d5e7539ddc0.tar.gz qemu-50cfa95cbd6d0ab896530f7af07a4d5e7539ddc0.tar.xz qemu-50cfa95cbd6d0ab896530f7af07a4d5e7539ddc0.zip | |
CRIS: Eliminate a few unneeded moves to/from T0/T1.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4306 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-cris')
| -rw-r--r-- | target-cris/translate.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/target-cris/translate.c b/target-cris/translate.c index 7fdedbf7b8..72e5e3c06a 100644 --- a/target-cris/translate.c +++ b/target-cris/translate.c @@ -449,11 +449,10 @@ static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest) tb = dc->tb; if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) { tcg_gen_goto_tb(n); - tcg_gen_movi_tl(cpu_T[0], dest); - t_gen_mov_env_TN(pc, cpu_T[0]); + tcg_gen_movi_tl(env_pc, dest); tcg_gen_exit_tb((long)tb + n); } else { - t_gen_mov_env_TN(pc, cpu_T[0]); + tcg_gen_mov_tl(env_pc, cpu_T[0]); tcg_gen_exit_tb(0); } } @@ -916,6 +915,8 @@ static inline void t_gen_sext(TCGv d, TCGv s, int size) tcg_gen_ext8s_i32(d, s); else if (size == 2) tcg_gen_ext16s_i32(d, s); + else + tcg_gen_mov_tl(d, s); } static inline void t_gen_zext(TCGv d, TCGv s, int size) @@ -925,6 +926,8 @@ static inline void t_gen_zext(TCGv d, TCGv s, int size) tcg_gen_andi_i32(d, s, 0xff); else if (size == 2) tcg_gen_andi_i32(d, s, 0xffff); + else + tcg_gen_mov_tl(d, s); } #if DISAS_CRIS @@ -968,11 +971,10 @@ static inline void do_postinc (DisasContext *dc, int size) static void dec_prep_move_r(DisasContext *dc, int rs, int rd, int size, int s_ext) { - t_gen_mov_TN_reg(cpu_T[1], rs); if (s_ext) - t_gen_sext(cpu_T[1], cpu_T[1], size); + t_gen_sext(cpu_T[1], cpu_R[rs], size); else - t_gen_zext(cpu_T[1], cpu_T[1], size); + t_gen_zext(cpu_T[1], cpu_R[rs], size); } /* Prepare T0 and T1 for a register alu operation. @@ -983,11 +985,10 @@ static void dec_prep_alu_r(DisasContext *dc, int rs, int rd, { dec_prep_move_r(dc, rs, rd, size, s_ext); - t_gen_mov_TN_reg(cpu_T[0], rd); if (s_ext) - t_gen_sext(cpu_T[0], cpu_T[0], size); + t_gen_sext(cpu_T[0], cpu_R[rd], size); else - t_gen_zext(cpu_T[0], cpu_T[0], size); + t_gen_zext(cpu_T[0], cpu_R[rd], size); } /* Prepare T0 and T1 for a memory + alu operation. |