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diff src/share/vm/adlc/formssel.cpp @ 14428:044b28168e20

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8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation Summary: added ability in C2 to expand mach nodes to several mach nodes after register allocation Reviewed-by: kvn
author goetz
date Thu, 14 Nov 2013 19:24:59 -0800
parents 1856ea98184a
children 1410ad6b05f1
line wrap: on
line diff
--- a/src/share/vm/adlc/formssel.cpp	Thu Nov 07 11:47:11 2013 +0100
+++ b/src/share/vm/adlc/formssel.cpp	Thu Nov 14 19:24:59 2013 -0800
@@ -36,27 +36,28 @@
 {
       _ftype = Form::INS;
 
-      _matrule   = NULL;
-      _insencode = NULL;
-      _constant  = NULL;
-      _opcode    = NULL;
-      _size      = NULL;
-      _attribs   = NULL;
-      _predicate = NULL;
-      _exprule   = NULL;
-      _rewrule   = NULL;
-      _format    = NULL;
-      _peephole  = NULL;
-      _ins_pipe  = NULL;
-      _uniq_idx  = NULL;
-      _num_uniq  = 0;
-      _cisc_spill_operand = Not_cisc_spillable;// Which operand may cisc-spill
+      _matrule              = NULL;
+      _insencode            = NULL;
+      _constant             = NULL;
+      _is_postalloc_expand  = false;
+      _opcode               = NULL;
+      _size                 = NULL;
+      _attribs              = NULL;
+      _predicate            = NULL;
+      _exprule              = NULL;
+      _rewrule              = NULL;
+      _format               = NULL;
+      _peephole             = NULL;
+      _ins_pipe             = NULL;
+      _uniq_idx             = NULL;
+      _num_uniq             = 0;
+      _cisc_spill_operand   = Not_cisc_spillable;// Which operand may cisc-spill
       _cisc_spill_alternate = NULL;            // possible cisc replacement
-      _cisc_reg_mask_name = NULL;
-      _is_cisc_alternate = false;
-      _is_short_branch = false;
-      _short_branch_form = NULL;
-      _alignment = 1;
+      _cisc_reg_mask_name   = NULL;
+      _is_cisc_alternate    = false;
+      _is_short_branch      = false;
+      _short_branch_form    = NULL;
+      _alignment            = 1;
 }
 
 InstructForm::InstructForm(const char *id, InstructForm *instr, MatchRule *rule)
@@ -68,27 +69,28 @@
 {
       _ftype = Form::INS;
 
-      _matrule   = rule;
-      _insencode = instr->_insencode;
-      _constant  = instr->_constant;
-      _opcode    = instr->_opcode;
-      _size      = instr->_size;
-      _attribs   = instr->_attribs;
-      _predicate = instr->_predicate;
-      _exprule   = instr->_exprule;
-      _rewrule   = instr->_rewrule;
-      _format    = instr->_format;
-      _peephole  = instr->_peephole;
-      _ins_pipe  = instr->_ins_pipe;
-      _uniq_idx  = instr->_uniq_idx;
-      _num_uniq  = instr->_num_uniq;
-      _cisc_spill_operand = Not_cisc_spillable;// Which operand may cisc-spill
-      _cisc_spill_alternate = NULL;            // possible cisc replacement
-      _cisc_reg_mask_name = NULL;
-      _is_cisc_alternate = false;
-      _is_short_branch = false;
-      _short_branch_form = NULL;
-      _alignment = 1;
+      _matrule               = rule;
+      _insencode             = instr->_insencode;
+      _constant              = instr->_constant;
+      _is_postalloc_expand   = instr->_is_postalloc_expand;
+      _opcode                = instr->_opcode;
+      _size                  = instr->_size;
+      _attribs               = instr->_attribs;
+      _predicate             = instr->_predicate;
+      _exprule               = instr->_exprule;
+      _rewrule               = instr->_rewrule;
+      _format                = instr->_format;
+      _peephole              = instr->_peephole;
+      _ins_pipe              = instr->_ins_pipe;
+      _uniq_idx              = instr->_uniq_idx;
+      _num_uniq              = instr->_num_uniq;
+      _cisc_spill_operand    = Not_cisc_spillable; // Which operand may cisc-spill
+      _cisc_spill_alternate  = NULL;               // possible cisc replacement
+      _cisc_reg_mask_name    = NULL;
+      _is_cisc_alternate     = false;
+      _is_short_branch       = false;
+      _short_branch_form     = NULL;
+      _alignment             = 1;
      // Copy parameters
      const char *name;
      instr->_parameters.reset();
@@ -157,6 +159,11 @@
   return ( _exprule != NULL );
 }
 
+// This instruction has a late expand rule?
+bool InstructForm::postalloc_expands() const {
+  return _is_postalloc_expand;
+}
+
 // This instruction has a peephole rule?
 Peephole *InstructForm::peepholes() const {
   return _peephole;