summaryrefslogtreecommitdiff
path: root/cgopt.c
diff options
context:
space:
mode:
Diffstat (limited to 'cgopt.c')
-rw-r--r--cgopt.c81
1 files changed, 41 insertions, 40 deletions
diff --git a/cgopt.c b/cgopt.c
index ccd4e39..beff6ff 100644
--- a/cgopt.c
+++ b/cgopt.c
@@ -72,12 +72,14 @@ static void optimize_branch_jump (struct instruction *branch,LABEL *new_branch_l
case IBGTU: branch->instruction_icode=IBLEU; break;
case IBLEU: branch->instruction_icode=IBGTU; break;
case IBLTU: branch->instruction_icode=IBGEU; break;
+#if !defined (I486_USE_SCRATCH_REGISTER) || defined (G_A64)
case IFBEQ: branch->instruction_icode=IFBNE; break;
case IFBGE: branch->instruction_icode=IFBLT; break;
case IFBGT: branch->instruction_icode=IFBLE; break;
case IFBLE: branch->instruction_icode=IFBGT; break;
case IFBLT: branch->instruction_icode=IFBGE; break;
case IFBNE: branch->instruction_icode=IFBEQ;
+#endif
}
}
@@ -114,7 +116,9 @@ void optimize_jumps (void)
switch (branch->instruction_icode){
case IBEQ: case IBGE: case IBGT: case IBLE: case IBLT:
case IBNE: case IBGEU: case IBGTU: case IBLEU: case IBLTU:
+#if !defined (I486_USE_SCRATCH_REGISTER) || defined (G_A64)
case IFBEQ: case IFBGE: case IFBGT: case IFBLE: case IFBLT: case IFBNE:
+#endif
{
struct basic_block *next_block;
@@ -671,6 +675,9 @@ static void compute_maximum_b_stack_offsets (register int b_offset)
instruction->instruction_icode!=IREMI &&
instruction->instruction_icode!=IREMU &&
instruction->instruction_icode!=IDIVDU &&
+ instruction->instruction_icode!=IASR_S &&
+ instruction->instruction_icode!=ILSL_S &&
+ instruction->instruction_icode!=ILSR_S &&
#endif
instruction->instruction_icode!=IMOD)
#ifdef M68000
@@ -906,6 +913,9 @@ void optimize_stack_access (struct basic_block *block,int *a_offset_p,int *b_off
instruction->instruction_icode!=IREMI &&
instruction->instruction_icode!=IREMU &&
instruction->instruction_icode!=IDIVDU &&
+ instruction->instruction_icode!=IASR_S &&
+ instruction->instruction_icode!=ILSL_S &&
+ instruction->instruction_icode!=ILSR_S &&
instruction->instruction_icode!=IMOD)
internal_error_in_function ("optimize_stack_access");
/* only first argument of mod might be register indirect */
@@ -1520,7 +1530,6 @@ static void store_next_uses (struct instruction *instruction)
#ifndef I486_USE_SCRATCH_REGISTER
case IASR: case ILSL: case ILSR:
case IDIV:
- case ICMPW:
#endif
#if defined (I486) && !defined (I486_USE_SCRATCH_REGISTER)
case IMULUD:
@@ -1541,6 +1550,9 @@ IF_G_POWER ( case IUMULH: )
#ifdef I486
case IADC: case ISBB:
#endif
+#ifdef M68000
+ case ICMPW:
+#endif
use_parameter (&instruction->instruction_parameters[1]);
use_parameter (&instruction->instruction_parameters[0]);
break;
@@ -1551,13 +1563,6 @@ IF_G_POWER ( case IUMULH: )
use_parameter (&instruction->instruction_parameters[1]);
use_parameter (&instruction->instruction_parameters[0]);
break;
- case ICMPW:
- if (instruction->instruction_parameters[0].parameter_type==P_INDIRECT ||
- instruction->instruction_parameters[1].parameter_type==P_INDIRECT)
- define_scratch_register();
- use_parameter (&instruction->instruction_parameters[1]);
- use_parameter (&instruction->instruction_parameters[0]);
- break;
case IDIV: case IMOD: case IDIVU: case IREMU: case IMULUD:
define_scratch_register();
use_parameter (&instruction->instruction_parameters[1]);
@@ -1615,11 +1620,11 @@ IF_G_RISC (case IADDI: case ILSLI:)
/* case IJMP: case IJSR: */
use_parameter (&instruction->instruction_parameters[0]);
break;
- case IFSEQ: case IFSGE: case IFSGT: case IFSLE: case IFSLT: case IFSNE:
case ISEQ: case ISGE: case ISGT: case ISLE: case ISLT: case ISNE:
case ISO: case ISGEU: case ISGTU: case ISLEU: case ISLTU: case ISNO:
-#ifdef I486_USE_SCRATCH_REGISTER
- define_scratch_register();
+ case IFSEQ: case IFSGE: case IFSGT: case IFSLE: case IFSLT: case IFSNE:
+#if defined (I486) && !defined (G_A64)
+ case IFCEQ: case IFCGE: case IFCGT: case IFCLE: case IFCLT: case IFCNE:
#endif
define_parameter (&instruction->instruction_parameters[0]);
break;
@@ -1639,6 +1644,13 @@ IF_G_RISC (case IADDI: case ILSLI:)
break;
# endif
#endif
+#ifdef I486
+ case IASR_S: case ILSL_S: case ILSR_S:
+ define_parameter (&instruction->instruction_parameters[2]);
+ use_parameter (&instruction->instruction_parameters[1]);
+ use_parameter (&instruction->instruction_parameters[0]);
+ break;
+#endif
#ifdef M68000
case IMOVEM:
{
@@ -1666,13 +1678,12 @@ IF_G_RISC (case IADDI: case ILSLI:)
use_parameter (&instruction->instruction_parameters[0]);
break;
#endif
-#ifdef I486_USE_SCRATCH_REGISTER
+#if 0
case IFBEQ: case IFBGE: case IFBGT: case IFBLE: case IFBLT: case IFBNE:
define_scratch_register();
break;
#endif
/*
- case IFBEQ: case IFBGE: case IFBGT: case IFBLE: case IFBLT: case IFBNE:
case IRTS:
break;
*/
@@ -3065,7 +3076,7 @@ static void use_3_same_type_registers
int reg_n_1,reg_n_2,reg_n_3,real_reg_n_1,real_reg_n_2,real_reg_n_3,instruction_n;
struct register_use *reg_uses;
struct register_allocation *reg_alloc;
-
+
reg_n_1=reg_p_1->r;
reg_n_2=reg_p_2->r;
reg_n_3=reg_p_3->r;
@@ -3855,20 +3866,13 @@ IF_G_POWER ( case IUMULH: )
break;
#endif
case ICMP:
-#ifndef I486_USE_SCRATCH_REGISTER
+#ifdef M68000
case ICMPW:
#endif
IF_G_POWER (case ICMPLW:)
instruction_use_2 (instruction,USE);
break;
#ifdef I486_USE_SCRATCH_REGISTER
- case ICMPW:
- if (instruction->instruction_parameters[0].parameter_type==P_INDIRECT ||
- instruction->instruction_parameters[1].parameter_type==P_INDIRECT)
- use_scratch_register();
- instruction_use_2 (instruction,USE);
- allocate_scratch_register=1;
- break;
case IMOVE:
if ((instruction->instruction_parameters[0].parameter_type==P_INDIRECT ||
instruction->instruction_parameters[0].parameter_type==P_INDEXED) &&
@@ -3925,28 +3929,17 @@ IF_G_RISC (case IADDI: case ILSLI:)
#endif
instruction_usedef (instruction);
break;
- case IFSEQ: case IFSGE: case IFSGT: case IFSLE: case IFSLT: case IFSNE:
- {
-#ifdef I486_USE_SCRATCH_REGISTER
- use_scratch_register();
-#endif
- instruction_def (instruction);
-#ifdef I486_USE_SCRATCH_REGISTER
- allocate_scratch_register=1;
-#endif
- break;
- }
case ISEQ: case ISGE: case ISGT: case ISLE: case ISLT: case ISNE:
case ISO: case ISGEU: case ISGTU: case ISLEU: case ISLTU: case ISNO:
-#ifdef I486_USE_SCRATCH_REGISTER
- use_scratch_register();
-#endif
do_not_alter_condition_codes=1;
instruction_def (instruction);
do_not_alter_condition_codes=0;
-#ifdef I486_USE_SCRATCH_REGISTER
- allocate_scratch_register=1;
+ break;
+ case IFSEQ: case IFSGE: case IFSGT: case IFSLE: case IFSLT: case IFSNE:
+#if defined (I486) && !defined (G_A64)
+ case IFCEQ: case IFCGE: case IFCGT: case IFCLE: case IFCLT: case IFCNE:
#endif
+ instruction_def (instruction);
break;
case IEXG:
instruction_usedef_usedef (instruction);
@@ -3967,6 +3960,15 @@ IF_G_RISC (case IADDI: case ILSLI:)
instruction_fexg_usedef_usedef (instruction);
break;
#endif
+
+#ifdef I486
+ case IASR_S: case ILSL_S: case ILSR_S:
+ use_3_same_type_registers
+ (&instruction->instruction_parameters[0].parameter_data.reg,USE,
+ &instruction->instruction_parameters[1].parameter_data.reg,USE_DEF,
+ &instruction->instruction_parameters[2].parameter_data.reg,DEF,D_REGISTER);
+ break;
+#endif
#ifndef I486_USE_SCRATCH_REGISTER
case IMOD:
# if defined (I486) || defined (G_POWER)
@@ -4014,14 +4016,13 @@ IF_G_RISC (case IADDI: case ILSLI:)
# endif
break;
#endif
-#ifdef I486_USE_SCRATCH_REGISTER
+#if 0
case IFBEQ: case IFBGE: case IFBGT: case IFBLE: case IFBLT: case IFBNE:
use_scratch_register();
allocate_scratch_register=1;
break;
#endif
/*
- case IFBEQ: case IFBGE: case IFBGT: case IFBLE: case IFBLT: case IFBNE:
case IRTS: case IJMP: case IJSR:
break;
*/
generated by cgit v1.2.3 (git 2.39.1) at 2025-03-15 13:52:47 +0000