src/share/vm/adlc/output_c.cpp
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rev 2699 : 7090968: Allow adlc register class to depend on runtime conditions
Summary: allow reg_class definition as a function.
Reviewed-by:
*** 160,174 ****
(rc_name = _register->_rclasses.iter()) != NULL; ) {
const char *prefix = "";
RegClass *reg_class = _register->getRegClass(rc_name);
assert( reg_class, "Using an undefined register class");
! int len = RegisterForm::RegMask_Size();
! fprintf(fp_hpp, "extern const RegMask %s%s_mask;\n", prefix, toUpper( rc_name ) );
if( reg_class->_stack_or_reg ) {
! fprintf(fp_hpp, "extern const RegMask %sSTACK_OR_%s_mask;\n", prefix, toUpper( rc_name ) );
}
}
}
}
--- 160,180 ----
(rc_name = _register->_rclasses.iter()) != NULL; ) {
const char *prefix = "";
RegClass *reg_class = _register->getRegClass(rc_name);
assert( reg_class, "Using an undefined register class");
! if (reg_class->_user_defined == NULL) {
! fprintf(fp_hpp, "extern const RegMask _%s%s_mask;\n", prefix, toUpper( rc_name ) );
! fprintf(fp_hpp, "inline const RegMask &%s%s_mask() { return _%s%s_mask; }\n", prefix, toUpper( rc_name ), prefix, toUpper( rc_name ));
! } else {
! fprintf(fp_hpp, "inline const RegMask &%s%s_mask() { %s }\n", prefix, toUpper( rc_name ), reg_class->_user_defined);
! }
if( reg_class->_stack_or_reg ) {
! assert(reg_class->_user_defined == NULL, "no user defined reg class here");
! fprintf(fp_hpp, "extern const RegMask _%sSTACK_OR_%s_mask;\n", prefix, toUpper( rc_name ) );
! fprintf(fp_hpp, "inline const RegMask &%sSTACK_OR_%s_mask() { return _%sSTACK_OR_%s_mask; }\n", prefix, toUpper( rc_name ), prefix, toUpper( rc_name ) );
}
}
}
}
*** 186,206 ****
(rc_name = _register->_rclasses.iter()) != NULL; ) {
const char *prefix = "";
RegClass *reg_class = _register->getRegClass(rc_name);
assert( reg_class, "Using an undefined register class");
int len = RegisterForm::RegMask_Size();
! fprintf(fp_cpp, "const RegMask %s%s_mask(", prefix, toUpper( rc_name ) );
{ int i;
for( i = 0; i < len-1; i++ )
fprintf(fp_cpp," 0x%x,",reg_class->regs_in_word(i,false));
fprintf(fp_cpp," 0x%x );\n",reg_class->regs_in_word(i,false));
}
if( reg_class->_stack_or_reg ) {
int i;
! fprintf(fp_cpp, "const RegMask %sSTACK_OR_%s_mask(", prefix, toUpper( rc_name ) );
for( i = 0; i < len-1; i++ )
fprintf(fp_cpp," 0x%x,",reg_class->regs_in_word(i,true));
fprintf(fp_cpp," 0x%x );\n",reg_class->regs_in_word(i,true));
}
}
--- 192,214 ----
(rc_name = _register->_rclasses.iter()) != NULL; ) {
const char *prefix = "";
RegClass *reg_class = _register->getRegClass(rc_name);
assert( reg_class, "Using an undefined register class");
+ if (reg_class->_user_defined != NULL) continue;
+
int len = RegisterForm::RegMask_Size();
! fprintf(fp_cpp, "const RegMask _%s%s_mask(", prefix, toUpper( rc_name ) );
{ int i;
for( i = 0; i < len-1; i++ )
fprintf(fp_cpp," 0x%x,",reg_class->regs_in_word(i,false));
fprintf(fp_cpp," 0x%x );\n",reg_class->regs_in_word(i,false));
}
if( reg_class->_stack_or_reg ) {
int i;
! fprintf(fp_cpp, "const RegMask _%sSTACK_OR_%s_mask(", prefix, toUpper( rc_name ) );
for( i = 0; i < len-1; i++ )
fprintf(fp_cpp," 0x%x,",reg_class->regs_in_word(i,true));
fprintf(fp_cpp," 0x%x );\n",reg_class->regs_in_word(i,true));
}
}
*** 2688,2698 ****
if (all_same) {
// Return the sole RegMask.
if (strcmp(first_reg_class, "stack_slots") == 0) {
fprintf(fp," return &(Compile::current()->FIRST_STACK_mask());\n");
} else {
! fprintf(fp," return &%s_mask;\n", toUpper(first_reg_class));
}
} else {
// Build a switch statement to return the desired mask.
fprintf(fp," switch (index) {\n");
--- 2696,2706 ----
if (all_same) {
// Return the sole RegMask.
if (strcmp(first_reg_class, "stack_slots") == 0) {
fprintf(fp," return &(Compile::current()->FIRST_STACK_mask());\n");
} else {
! fprintf(fp," return &%s_mask();\n", toUpper(first_reg_class));
}
} else {
// Build a switch statement to return the desired mask.
fprintf(fp," switch (index) {\n");
*** 2700,2710 ****
const char *reg_class = oper.in_reg_class(index, globals);
assert(reg_class != NULL, "did not find register mask");
if( !strcmp(reg_class, "stack_slots") ) {
fprintf(fp, " case %d: return &(Compile::current()->FIRST_STACK_mask());\n", index);
} else {
! fprintf(fp, " case %d: return &%s_mask;\n", index, toUpper(reg_class));
}
}
fprintf(fp," }\n");
fprintf(fp," ShouldNotReachHere();\n");
fprintf(fp," return NULL;\n");
--- 2708,2718 ----
const char *reg_class = oper.in_reg_class(index, globals);
assert(reg_class != NULL, "did not find register mask");
if( !strcmp(reg_class, "stack_slots") ) {
fprintf(fp, " case %d: return &(Compile::current()->FIRST_STACK_mask());\n", index);
} else {
! fprintf(fp, " case %d: return &%s_mask();\n", index, toUpper(reg_class));
}
}
fprintf(fp," }\n");
fprintf(fp," ShouldNotReachHere();\n");
fprintf(fp," return NULL;\n");
*** 4078,4113 ****
// Inline Cache Register, mask definition, and encoding
fprintf(fp_cpp,"OptoReg::Name Matcher::inline_cache_reg() {");
fprintf(fp_cpp," return OptoReg::Name(%s_num); }\n\n",
_frame->_inline_cache_reg);
- fprintf(fp_cpp,"const RegMask &Matcher::inline_cache_reg_mask() {");
- fprintf(fp_cpp," return INLINE_CACHE_REG_mask; }\n\n");
fprintf(fp_cpp,"int Matcher::inline_cache_reg_encode() {");
fprintf(fp_cpp," return _regEncode[inline_cache_reg()]; }\n\n");
// Interpreter's Method Oop Register, mask definition, and encoding
fprintf(fp_cpp,"OptoReg::Name Matcher::interpreter_method_oop_reg() {");
fprintf(fp_cpp," return OptoReg::Name(%s_num); }\n\n",
_frame->_interpreter_method_oop_reg);
- fprintf(fp_cpp,"const RegMask &Matcher::interpreter_method_oop_reg_mask() {");
- fprintf(fp_cpp," return INTERPRETER_METHOD_OOP_REG_mask; }\n\n");
fprintf(fp_cpp,"int Matcher::interpreter_method_oop_reg_encode() {");
fprintf(fp_cpp," return _regEncode[interpreter_method_oop_reg()]; }\n\n");
// Interpreter's Frame Pointer Register, mask definition, and encoding
fprintf(fp_cpp,"OptoReg::Name Matcher::interpreter_frame_pointer_reg() {");
if (_frame->_interpreter_frame_pointer_reg == NULL)
fprintf(fp_cpp," return OptoReg::Bad; }\n\n");
else
fprintf(fp_cpp," return OptoReg::Name(%s_num); }\n\n",
_frame->_interpreter_frame_pointer_reg);
- fprintf(fp_cpp,"const RegMask &Matcher::interpreter_frame_pointer_reg_mask() {");
- if (_frame->_interpreter_frame_pointer_reg == NULL)
- fprintf(fp_cpp," static RegMask dummy; return dummy; }\n\n");
- else
- fprintf(fp_cpp," return INTERPRETER_FRAME_POINTER_REG_mask; }\n\n");
// Frame Pointer definition
/* CNC - I can not contemplate having a different frame pointer between
Java and native code; makes my head hurt to think about it.
fprintf(fp_cpp,"OptoReg::Name Matcher::frame_pointer() const {");
--- 4086,4112 ----