gwj / at91sam9263 · Commits

Commit 2a0ab9989938b8d633be12e2614a45806daac927

Authored by aurel32
1 parent b10fa3c9

target-mips: optimize gen_farith() 

Optimize code generation in gen_farith():
- Temp variables are valid up to and *including* the brcond instruction.
  Use them instead of temp local variables.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5682 c046a42c-6fe2-441c-8c8c-71466251a162
Inline Side-by-side
Showing 1 changed file with 12 additions and 12 deletions
target-mips/translate.c
  View file @2a0ab99
... ... @@ -6314,32 +6314,32 @@ static void gen_farith (DisasContext *ctx, uint32_t op1,
6314 6314 case FOP(18, 16):
6315 6315 {
6316 6316 int l1 = gen_new_label();
6317   - TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL);
  6317 + TCGv t0 = tcg_temp_new(TCG_TYPE_TL);
6318 6318 TCGv fp0 = tcg_temp_local_new(TCG_TYPE_I32);
6319 6319  
6320 6320 gen_load_gpr(t0, ft);
6321 6321 tcg_gen_brcondi_tl(TCG_COND_NE, t0, 0, l1);
6322   - tcg_temp_free(t0);
6323 6322 gen_load_fpr32(fp0, fs);
6324 6323 gen_store_fpr32(fp0, fd);
6325 6324 tcg_temp_free(fp0);
6326 6325 gen_set_label(l1);
  6326 + tcg_temp_free(t0);
6327 6327 }
6328 6328 opn = "movz.s";
6329 6329 break;
6330 6330 case FOP(19, 16):
6331 6331 {
6332 6332 int l1 = gen_new_label();
6333   - TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL);
  6333 + TCGv t0 = tcg_temp_new(TCG_TYPE_TL);
6334 6334 TCGv fp0 = tcg_temp_local_new(TCG_TYPE_I32);
6335 6335  
6336 6336 gen_load_gpr(t0, ft);
6337 6337 tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 0, l1);
6338   - tcg_temp_free(t0);
6339 6338 gen_load_fpr32(fp0, fs);
6340 6339 gen_store_fpr32(fp0, fd);
6341 6340 tcg_temp_free(fp0);
6342 6341 gen_set_label(l1);
  6342 + tcg_temp_free(t0);
6343 6343 }
6344 6344 opn = "movn.s";
6345 6345 break;
... ... @@ -6733,32 +6733,32 @@ static void gen_farith (DisasContext *ctx, uint32_t op1,
6733 6733 case FOP(18, 17):
6734 6734 {
6735 6735 int l1 = gen_new_label();
6736   - TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL);
  6736 + TCGv t0 = tcg_temp_new(TCG_TYPE_TL);
6737 6737 TCGv fp0 = tcg_temp_local_new(TCG_TYPE_I64);
6738 6738  
6739 6739 gen_load_gpr(t0, ft);
6740 6740 tcg_gen_brcondi_tl(TCG_COND_NE, t0, 0, l1);
6741   - tcg_temp_free(t0);
6742 6741 gen_load_fpr64(ctx, fp0, fs);
6743 6742 gen_store_fpr64(ctx, fp0, fd);
6744 6743 tcg_temp_free(fp0);
6745 6744 gen_set_label(l1);
  6745 + tcg_temp_free(t0);
6746 6746 }
6747 6747 opn = "movz.d";
6748 6748 break;
6749 6749 case FOP(19, 17):
6750 6750 {
6751 6751 int l1 = gen_new_label();
6752   - TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL);
  6752 + TCGv t0 = tcg_temp_new(TCG_TYPE_TL);
6753 6753 TCGv fp0 = tcg_temp_local_new(TCG_TYPE_I64);
6754 6754  
6755 6755 gen_load_gpr(t0, ft);
6756 6756 tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 0, l1);
6757   - tcg_temp_free(t0);
6758 6757 gen_load_fpr64(ctx, fp0, fs);
6759 6758 gen_store_fpr64(ctx, fp0, fd);
6760 6759 tcg_temp_free(fp0);
6761 6760 gen_set_label(l1);
  6761 + tcg_temp_free(t0);
6762 6762 }
6763 6763 opn = "movn.d";
6764 6764 break;
... ... @@ -7068,13 +7068,12 @@ static void gen_farith (DisasContext *ctx, uint32_t op1,
7068 7068 check_cp1_64bitmode(ctx);
7069 7069 {
7070 7070 int l1 = gen_new_label();
7071   - TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL);
  7071 + TCGv t0 = tcg_temp_new(TCG_TYPE_TL);
7072 7072 TCGv fp0 = tcg_temp_local_new(TCG_TYPE_I32);
7073 7073 TCGv fph0 = tcg_temp_local_new(TCG_TYPE_I32);
7074 7074  
7075 7075 gen_load_gpr(t0, ft);
7076 7076 tcg_gen_brcondi_tl(TCG_COND_NE, t0, 0, l1);
7077   - tcg_temp_free(t0);
7078 7077 gen_load_fpr32(fp0, fs);
7079 7078 gen_load_fpr32h(fph0, fs);
7080 7079 gen_store_fpr32(fp0, fd);
... ... @@ -7082,6 +7081,7 @@ static void gen_farith (DisasContext *ctx, uint32_t op1,
7082 7081 tcg_temp_free(fp0);
7083 7082 tcg_temp_free(fph0);
7084 7083 gen_set_label(l1);
  7084 + tcg_temp_free(t0);
7085 7085 }
7086 7086 opn = "movz.ps";
7087 7087 break;
... ... @@ -7089,13 +7089,12 @@ static void gen_farith (DisasContext *ctx, uint32_t op1,
7089 7089 check_cp1_64bitmode(ctx);
7090 7090 {
7091 7091 int l1 = gen_new_label();
7092   - TCGv t0 = tcg_temp_local_new(TCG_TYPE_TL);
  7092 + TCGv t0 = tcg_temp_new(TCG_TYPE_TL);
7093 7093 TCGv fp0 = tcg_temp_local_new(TCG_TYPE_I32);
7094 7094 TCGv fph0 = tcg_temp_local_new(TCG_TYPE_I32);
7095 7095  
7096 7096 gen_load_gpr(t0, ft);
7097 7097 tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 0, l1);
7098   - tcg_temp_free(t0);
7099 7098 gen_load_fpr32(fp0, fs);
7100 7099 gen_load_fpr32h(fph0, fs);
7101 7100 gen_store_fpr32(fp0, fd);
... ... @@ -7103,6 +7102,7 @@ static void gen_farith (DisasContext *ctx, uint32_t op1,
7103 7102 tcg_temp_free(fp0);
7104 7103 tcg_temp_free(fph0);
7105 7104 gen_set_label(l1);
  7105 + tcg_temp_free(t0);
7106 7106 }
7107 7107 opn = "movn.ps";
7108 7108 break;
... ...