Revert use of classify callback in i386 gdbarch_tdep.

This is no longer useful, as it was introduced to reuse the funcall
handling code in amd64-tdep.c in the context of x64-windows. But
we have since then changed the implementations to be completely
independent of each other.

This reverts the non-windows-specific part of the change called:
    amd64: Integer parameters in function calls on Windows
(the x64-windows portion has already been reverted)

gdb/ChangeLog:

	Revert:
	* i386-tdep.h (enum amd64_reg_class): New, moved here from
	amd64-tdep.c.
	(struct gdbarch_tdep): Add fields call_dummy_num_integer_regs,
	call_dummy_integer_regs, and classify.
	* amd64-tdep.h (amd64_classify): Add declaration.
	* amd64-tdep.c (amd64_dummy_call_integer_regs): New static constant.
	(amd64_reg_class): Delete, moved to i386-tdep.h.
	(amd64_classify): Make non-static.  Move declaration to amd64-tdep.h.
	Replace call to amd64_classify by call to tdep->classify.
	(amd64_push_arguments): Get the list of registers to use for
	passing integer parameters from the gdbarch tdep structure,
	rather than using a hardcoded one.  Replace calls to amd64_classify
	by calls to tdep->classify.
	(amd64_push_dummy_call): Get the register number used for
	the "hidden" argument from tdep->call_dummy_integer_regs.
	(amd64_init_abi): Initialize tdep->call_dummy_num_integer_regs
	and tdep->call_dummy_integer_regs.  Set tdep->classify.

1 files changed, 0 insertions, 24 deletions

diff --git a/gdb/i386-tdep.h b/gdb/i386-tdep.h
index 0c408faf3c..092744c8ba 100644
--- a/gdb/i386-tdep.h
+++ b/gdb/i386-tdep.h
@@ -52,20 +52,6 @@ enum struct_return
   reg_struct_return		/* Return "short" structures in registers.  */
 };
 
-/* Register classes as defined in the AMD x86-64 psABI.  */
-
-enum amd64_reg_class
-{
-  AMD64_INTEGER,
-  AMD64_SSE,
-  AMD64_SSEUP,
-  AMD64_X87,
-  AMD64_X87UP,
-  AMD64_COMPLEX_X87,
-  AMD64_NO_CLASS,
-  AMD64_MEMORY
-};
-
 /* i386 architecture specific information.  */
 struct gdbarch_tdep
 {
@@ -75,16 +61,6 @@ struct gdbarch_tdep
   int gregset_num_regs;
   size_t sizeof_gregset;
 
-  /* The general-purpose registers used to pass integers when making
-     function calls.  This only applies to amd64, as all parameters
-     are passed through the stack on x86.  */
-  int call_dummy_num_integer_regs;
-  int *call_dummy_integer_regs;
-
-  /* Classify TYPE according to calling conventions, and store
-     the result in CLASS.  Used on amd64 only.  */
-  void (*classify) (struct type *type, enum amd64_reg_class class[2]);
-
   /* Floating-point registers.  */
   struct regset *fpregset;
   size_t sizeof_fpregset;