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src/hotspot/cpu/riscv/sharedRuntime_riscv.cpp

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@@ -341,13 +341,12 @@
    __ leave();
    __ bind(L);
  }
  
  static void gen_c2i_adapter(MacroAssembler *masm,
-                             int total_args_passed,
                              int comp_args_on_stack,
-                             const BasicType *sig_bt,
+                             const GrowableArray<SigEntry>* sig,
                              const VMRegPair *regs,
                              Label& skip_fixup) {
    // Before we get into the guts of the C2I adapter, see if we should be here
    // at all.  We've come from compiled code and are attempting to jump to the
    // interpreter, which means the caller made a static call to get here

@@ -360,10 +359,11 @@
    int words_pushed = 0;
  
    // Since all args are passed on the stack, total_args_passed *
    // Interpreter::stackElementSize is the space we need.
  
+   int total_args_passed = sig->length();
    int extraspace = total_args_passed * Interpreter::stackElementSize;
  
    __ mv(x19_sender_sp, sp);
  
    // stack is aligned, keep it that way

@@ -373,12 +373,13 @@
      __ sub(sp, sp, extraspace);
    }
  
    // Now write the args into the outgoing interpreter space
    for (int i = 0; i < total_args_passed; i++) {
-     if (sig_bt[i] == T_VOID) {
-       assert(i > 0 && (sig_bt[i - 1] == T_LONG || sig_bt[i - 1] == T_DOUBLE), "missing half");
+     BasicType bt = sig->at(i)._bt;
+     if (bt == T_VOID) {
+       assert(i > 0 && (sig->at(i - 1)._bt == T_LONG || sig->at(i - 1)._bt == T_DOUBLE), "missing half");
        continue;
      }
  
      // offset to start parameters
      int st_off   = (total_args_passed - i - 1) * Interpreter::stackElementSize;

@@ -414,11 +415,11 @@
        } else {
          __ ld(t0, Address(sp, ld_off), /*temp register*/esp);
  
          // Two VMREgs|OptoRegs can be T_OBJECT, T_ADDRESS, T_DOUBLE, T_LONG
          // T_DOUBLE and T_LONG use two slots in the interpreter
-         if (sig_bt[i] == T_LONG || sig_bt[i] == T_DOUBLE) {
+         if (bt == T_LONG || bt == T_DOUBLE) {
            // ld_off == LSW, ld_off+wordSize == MSW
            // st_off == MSW, next_off == LSW
            __ sd(t0, Address(sp, next_off), /*temp register*/esp);
  #ifdef ASSERT
            // Overwrite the unused slot with known junk

@@ -435,11 +436,11 @@
          // must be only an int (or less ) so move only 32bits to slot
          __ sd(r, Address(sp, st_off));
        } else {
          // Two VMREgs|OptoRegs can be T_OBJECT, T_ADDRESS, T_DOUBLE, T_LONG
          // T_DOUBLE and T_LONG use two slots in the interpreter
-         if ( sig_bt[i] == T_LONG || sig_bt[i] == T_DOUBLE) {
+         if (bt == T_LONG || bt == T_DOUBLE) {
            // long/double in gpr
  #ifdef ASSERT
            // Overwrite the unused slot with known junk
            __ mv(t0, 0xdeadffffdeadaaabul);
            __ sd(t0, Address(sp, st_off), /*temp register*/esp);

@@ -470,13 +471,12 @@
    __ ld(t1, Address(xmethod, in_bytes(Method::interpreter_entry_offset())));
    __ jr(t1);
  }
  
  void SharedRuntime::gen_i2c_adapter(MacroAssembler *masm,
-                                     int total_args_passed,
                                      int comp_args_on_stack,
-                                     const BasicType *sig_bt,
+                                     const GrowableArray<SigEntry>* sig,
                                      const VMRegPair *regs) {
    // Note: x19_sender_sp contains the senderSP on entry. We must
    // preserve it since we may do a i2c -> c2i transition if we lose a
    // race where compiled code goes non-entrant while we get args
    // ready.

@@ -503,13 +503,15 @@
      __ bind(no_alternative_target);
    }
  #endif // INCLUDE_JVMCI
  
    // Now generate the shuffle code.
+   int total_args_passed = sig->length();
    for (int i = 0; i < total_args_passed; i++) {
-     if (sig_bt[i] == T_VOID) {
-       assert(i > 0 && (sig_bt[i - 1] == T_LONG || sig_bt[i - 1] == T_DOUBLE), "missing half");
+     BasicType bt = sig->at(i)._bt;
+     if (bt == T_VOID) {
+       assert(i > 0 && (sig->at(i - 1)._bt == T_LONG || sig->at(i - 1)._bt == T_DOUBLE), "missing half");
        continue;
      }
  
      // Pick up 0, 1 or 2 words from SP+offset.
  

@@ -542,11 +544,11 @@
          //
          // Interpreter local[n] == MSW, local[n+1] == LSW however locals
          // are accessed as negative so LSW is at LOW address
  
          // ld_off is MSW so get LSW
-         const int offset = (sig_bt[i] == T_LONG || sig_bt[i] == T_DOUBLE) ?
+         const int offset = (bt == T_LONG || bt == T_DOUBLE) ?
                             next_off : ld_off;
          __ ld(t0, Address(esp, offset));
          // st_off is LSW (i.e. reg.first())
          __ sd(t0, Address(sp, st_off), /*temp register*/t2);
        }

@@ -558,11 +560,11 @@
          // T_ADDRESS, T_LONG, or T_DOUBLE the interpreter allocates
          // two slots but only uses one for thr T_LONG or T_DOUBLE case
          // So we must adjust where to pick up the data to match the
          // interpreter.
  
-         const int offset = (sig_bt[i] == T_LONG || sig_bt[i] == T_DOUBLE) ?
+         const int offset = (bt == T_LONG || bt == T_DOUBLE) ?
                             next_off : ld_off;
  
          // this can be a misaligned move
          __ ld(r, Address(esp, offset));
        } else {

@@ -595,18 +597,23 @@
    __ jr(t1);
  }
  
  // ---------------------------------------------------------------
  
- void SharedRuntime::generate_i2c2i_adapters(MacroAssembler *masm,
-                                             int total_args_passed,
+ void SharedRuntime::generate_i2c2i_adapters(MacroAssembler* masm,
                                              int comp_args_on_stack,
-                                             const BasicType *sig_bt,
-                                             const VMRegPair *regs,
-                                             address entry_address[AdapterBlob::ENTRY_COUNT]) {
+                                             const GrowableArray<SigEntry>* sig,
+                                             const VMRegPair* regs,
+                                             const GrowableArray<SigEntry>* sig_cc,
+                                             const VMRegPair* regs_cc,
+                                             const GrowableArray<SigEntry>* sig_cc_ro,
+                                             const VMRegPair* regs_cc_ro,
+                                             address entry_address[AdapterBlob::ENTRY_COUNT],
+                                             AdapterBlob*& new_adapter,
+                                             bool allocate_code_blob) {
    entry_address[AdapterBlob::I2C] = __ pc();
-   gen_i2c_adapter(masm, total_args_passed, comp_args_on_stack, sig_bt, regs);
+   gen_i2c_adapter(masm, comp_args_on_stack, sig, regs);
  
    entry_address[AdapterBlob::C2I_Unverified] = __ pc();
    Label skip_fixup;
  
    const Register receiver = j_rarg0;

@@ -653,11 +660,11 @@
    entry_address[AdapterBlob::C2I_No_Clinit_Check] = __ pc();
  
    BarrierSetAssembler* bs = BarrierSet::barrier_set()->barrier_set_assembler();
    bs->c2i_entry_barrier(masm);
  
-   gen_c2i_adapter(masm, total_args_passed, comp_args_on_stack, sig_bt, regs, skip_fixup);
+   gen_c2i_adapter(masm, comp_args_on_stack, sig, regs, skip_fixup);
    return;
  }
  
  int SharedRuntime::vector_calling_convention(VMRegPair *regs,
                                               uint num_bits,

@@ -2780,5 +2787,18 @@
                                    oop_maps, false);
    return stub;
  }
  
  #endif // INCLUDE_JFR
+ 
+ const uint SharedRuntime::java_return_convention_max_int = Argument::n_int_register_parameters_j;
+ const uint SharedRuntime::java_return_convention_max_float = Argument::n_float_register_parameters_j;
+ 
+ int SharedRuntime::java_return_convention(const BasicType *sig_bt, VMRegPair *regs, int total_args_passed) {
+   Unimplemented();
+   return 0;
+ }
+ 
+ BufferedInlineTypeBlob* SharedRuntime::generate_buffered_inline_type_adapter(const InlineKlass* vk) {
+   Unimplemented();
+   return nullptr;
+ }
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