diff options
Diffstat (limited to 'target-alpha')
| -rw-r--r-- | target-alpha/translate.c | 102 |
1 files changed, 48 insertions, 54 deletions
diff --git a/target-alpha/translate.c b/target-alpha/translate.c index 12de6a3fb..4a9011a2b 100644 --- a/target-alpha/translate.c +++ b/target-alpha/translate.c @@ -426,27 +426,15 @@ static ExitStatus gen_bcond_internal(DisasContext *ctx, TCGCond cond, return EXIT_GOTO_TB; } else { - int lab_over = gen_new_label(); - - /* ??? Consider using either - movi pc, next - addi tmp, pc, disp - movcond pc, cond, 0, tmp, pc - or - setcond tmp, cond, 0 - movi pc, next - neg tmp, tmp - andi tmp, tmp, disp - add pc, pc, tmp - The current diamond subgraph surely isn't efficient. */ + TCGv_i64 z = tcg_const_i64(0); + TCGv_i64 d = tcg_const_i64(dest); + TCGv_i64 p = tcg_const_i64(ctx->pc); - tcg_gen_brcondi_i64(cond, cmp, 0, lab_true); - tcg_gen_movi_i64(cpu_pc, ctx->pc); - tcg_gen_br(lab_over); - gen_set_label(lab_true); - tcg_gen_movi_i64(cpu_pc, dest); - gen_set_label(lab_over); + tcg_gen_movcond_i64(cond, cpu_pc, cmp, z, d, p); + tcg_temp_free_i64(z); + tcg_temp_free_i64(d); + tcg_temp_free_i64(p); return EXIT_PC_UPDATED; } } @@ -521,61 +509,67 @@ static ExitStatus gen_fbcond(DisasContext *ctx, TCGCond cond, int ra, static void gen_cmov(TCGCond cond, int ra, int rb, int rc, int islit, uint8_t lit, int mask) { - TCGCond inv_cond = tcg_invert_cond(cond); - int l1; + TCGv_i64 c1, z, v1; - if (unlikely(rc == 31)) + if (unlikely(rc == 31)) { return; + } - l1 = gen_new_label(); - - if (ra != 31) { - if (mask) { - TCGv tmp = tcg_temp_new(); - tcg_gen_andi_i64(tmp, cpu_ir[ra], 1); - tcg_gen_brcondi_i64(inv_cond, tmp, 0, l1); - tcg_temp_free(tmp); - } else - tcg_gen_brcondi_i64(inv_cond, cpu_ir[ra], 0, l1); - } else { + if (ra == 31) { /* Very uncommon case - Do not bother to optimize. */ - TCGv tmp = tcg_const_i64(0); - tcg_gen_brcondi_i64(inv_cond, tmp, 0, l1); - tcg_temp_free(tmp); + c1 = tcg_const_i64(0); + } else if (mask) { + c1 = tcg_const_i64(1); + tcg_gen_and_i64(c1, c1, cpu_ir[ra]); + } else { + c1 = cpu_ir[ra]; } + if (islit) { + v1 = tcg_const_i64(lit); + } else { + v1 = cpu_ir[rb]; + } + z = tcg_const_i64(0); - if (islit) - tcg_gen_movi_i64(cpu_ir[rc], lit); - else - tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]); - gen_set_label(l1); + tcg_gen_movcond_i64(cond, cpu_ir[rc], c1, z, v1, cpu_ir[rc]); + + tcg_temp_free_i64(z); + if (ra == 31 || mask) { + tcg_temp_free_i64(c1); + } + if (islit) { + tcg_temp_free_i64(v1); + } } static void gen_fcmov(TCGCond cond, int ra, int rb, int rc) { - TCGv cmp_tmp; - int l1; + TCGv_i64 c1, z, v1; if (unlikely(rc == 31)) { return; } - cmp_tmp = tcg_temp_new(); + c1 = tcg_temp_new_i64(); if (unlikely(ra == 31)) { - tcg_gen_movi_i64(cmp_tmp, 0); + tcg_gen_movi_i64(c1, 0); + } else { + gen_fold_mzero(cond, c1, cpu_fir[ra]); + } + if (rb == 31) { + v1 = tcg_const_i64(0); } else { - gen_fold_mzero(cond, cmp_tmp, cpu_fir[ra]); + v1 = cpu_fir[rb]; } + z = tcg_const_i64(0); - l1 = gen_new_label(); - tcg_gen_brcondi_i64(tcg_invert_cond(cond), cmp_tmp, 0, l1); - tcg_temp_free(cmp_tmp); + tcg_gen_movcond_i64(cond, cpu_fir[rc], c1, z, v1, cpu_fir[rc]); - if (rb != 31) - tcg_gen_mov_i64(cpu_fir[rc], cpu_fir[rb]); - else - tcg_gen_movi_i64(cpu_fir[rc], 0); - gen_set_label(l1); + tcg_temp_free_i64(z); + tcg_temp_free_i64(c1); + if (rb == 31) { + tcg_temp_free_i64(v1); + } } #define QUAL_RM_N 0x080 /* Round mode nearest even */ |