re PR target/84277 (A lot of new acats testsuite failures)

	PR target/84277
	* except.h (output_function_exception_table): Adjust prototype.
	* except.c (output_function_exception_table): Remove FNNAME parameter
	and add SECTION parameter.  Ouput one part of the table at a time.
	* final.c (final_scan_insn_1) <NOTE_INSN_SWITCH_TEXT_SECTIONS>: Output
	the first part of the exception table and emit unwind directives.
	* config/i386/i386-protos.h (i386_pe_end_cold_function): Declare.
	(i386_pe_seh_cold_init): Likewise.
	* config/i386/cygming.h (ASM_DECLARE_COLD_FUNCTION_NAME): New macro.
	(ASM_DECLARE_COLD_FUNCTION_SIZE): Likewise.
	* config/i386/i386.c (x86_expand_epilogue): Fix wording in comment.
	(ix86_output_call_insn): Emit a nop in one more case for SEH.
	* config/i386/winnt.c: Include except.h.
	(struct seh_frame_state): Add reg_offset, after_prologue and
	in_cold_section fields.
	(i386_pe_seh_end_prologue): Set seh->after_prologue.
	(i386_pe_seh_cold_init): New function.
	(i386_pe_seh_fini): Add COLD parameter and bail out if it is not equal
	to seh->in_cold_section.
	(seh_emit_push): Record the offset of the push.
	(seh_emit_save): Record the offet of the save.
	(i386_pe_seh_unwind_emit): Deal with NOTE_INSN_SWITCH_TEXT_SECTIONS.
	Test seh->after_prologue to disregard the epilogue.
	(i386_pe_end_function): Pass FALSE to i386_pe_seh_fini.
	(i386_pe_end_cold_function): New function.

From-SVN: r258338

1 files changed, 24 insertions, 6 deletions

diff --git a/gcc/except.c b/gcc/except.c
index 04d4764ee17..53e57732ea8 100644
--- a/gcc/except.c
+++ b/gcc/except.c
@@ -2939,7 +2939,6 @@ switch_to_exception_section (const char * ARG_UNUSED (fnname))
   switch_to_section (s);
 }
 
-
 /* Output a reference from an exception table to the type_info object TYPE.
    TT_FORMAT and TT_FORMAT_SIZE describe the DWARF encoding method used for
    the value.  */
@@ -2989,6 +2988,13 @@ output_ttype (tree type, int tt_format, int tt_format_size)
     dw2_asm_output_encoded_addr_rtx (tt_format, value, is_public, NULL);
 }
 
+/* Output an exception table for the current function according to SECTION.
+
+   If the function has been partitioned into hot and cold parts, value 0 for
+   SECTION refers to the table associated with the hot part while value 1
+   refers to the table associated with the cold part.  If the function has
+   not been partitioned, value 0 refers to the single exception table.  */
+ 
 static void
 output_one_function_exception_table (int section)
 {
@@ -3167,13 +3173,26 @@ output_one_function_exception_table (int section)
     }
 }
 
+/* Output an exception table for the current function according to SECTION,
+   switching back and forth from the function section appropriately.
+
+   If the function has been partitioned into hot and cold parts, value 0 for
+   SECTION refers to the table associated with the hot part while value 1
+   refers to the table associated with the cold part.  If the function has
+   not been partitioned, value 0 refers to the single exception table.  */
+
 void
-output_function_exception_table (const char *fnname)
+output_function_exception_table (int section)
 {
+  const char *fnname = get_fnname_from_decl (current_function_decl);
   rtx personality = get_personality_function (current_function_decl);
 
   /* Not all functions need anything.  */
-  if (! crtl->uses_eh_lsda)
+  if (!crtl->uses_eh_lsda)
+    return;
+
+  /* No need to emit any boilerplate stuff for the cold part.  */
+  if (section == 1 && !crtl->eh.call_site_record_v[1])
     return;
 
   if (personality)
@@ -3189,9 +3208,8 @@ output_function_exception_table (const char *fnname)
   /* If the target wants a label to begin the table, emit it here.  */
   targetm.asm_out.emit_except_table_label (asm_out_file);
 
-  output_one_function_exception_table (0);
-  if (crtl->eh.call_site_record_v[1])
-    output_one_function_exception_table (1);
+  /* Do the real work.  */
+  output_one_function_exception_table (section);
 
   switch_to_section (current_function_section ());
 }