gimple-low.c (lower_function_body): Don't reset_block_changes here.

        * gimple-low.c (lower_function_body): Don't reset_block_changes here.
        * cfgexpand.c (tree_expand_cfg): Do it here.
        * config/alpha/alpha.c (alpha_output_mi_thunk_osf): And here.
        * config/ia64/ia64.c (ia64_output_mi_thunk): And here.
        * config/mips/mips.c (mips_output_mi_thunk): And here.
        * config/rs6000/rs6000.c (rs6000_output_mi_thunk): And here.
        * config/sh/sh.c (sh_output_mi_thunk): And here.
        * config/sparc/sparc.c (sparc_output_mi_thunk): And here.

From-SVN: r84012

gcc/ChangeLog

 2004-07-01  Richard Henderson  <rth@redhat.com>
 
+        * gimple-low.c (lower_function_body): Don't reset_block_changes here.
+        * cfgexpand.c (tree_expand_cfg): Do it here.
+        * config/alpha/alpha.c (alpha_output_mi_thunk_osf): And here.
+        * config/ia64/ia64.c (ia64_output_mi_thunk): And here.
+        * config/mips/mips.c (mips_output_mi_thunk): And here.
+        * config/rs6000/rs6000.c (rs6000_output_mi_thunk): And here.
+        * config/sh/sh.c (sh_output_mi_thunk): And here.
+        * config/sparc/sparc.c (sparc_output_mi_thunk): And here.
+
+2004-07-01  Richard Henderson  <rth@redhat.com>
+
 	* tree.def (RTL_EXPR): Remove.
 	* c-typeck.c (lvalue_p): Don't handle it.
 	* expr.c (safe_from_p): Likewise.

gcc/cfgexpand.c

@@ -412,6 +412,9 @@ tree_expand_cfg (void)
     walk_tree (&TREE_TYPE (current_function_decl), set_save_expr_context,
 	       current_function_decl, NULL);
 
+  /* Prepare the rtl middle end to start recording block changes.  */
+  reset_block_changes ();
+
   /* Expand the variables recorded during gimple lowering.  This must
      occur before the call to expand_function_start to ensure that
      all used variables are expanded before we expand anything on the

gcc/config/alpha/alpha.c

@@ -7899,6 +7899,8 @@ alpha_output_mi_thunk_osf (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED,
   HOST_WIDE_INT hi, lo;
   rtx this, insn, funexp;
 
+  reset_block_changes ();
+
   /* We always require a valid GP.  */
   emit_insn (gen_prologue_ldgp ());
   emit_note (NOTE_INSN_PROLOGUE_END);

gcc/config/ia64/ia64.c

@@ -8926,6 +8926,7 @@ ia64_output_mi_thunk (FILE *file, tree thunk ATTRIBUTE_UNUSED,
   reload_completed = 1;
   epilogue_completed = 1;
   no_new_pseudos = 1;
+  reset_block_changes ();
 
   /* Set things up as ia64_expand_prologue might.  */
   last_scratch_gr_reg = 15;

gcc/config/mips/mips.c

@@ -7070,6 +7070,7 @@ mips_output_mi_thunk (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED,
   /* Pretend to be a post-reload pass while generating rtl.  */
   no_new_pseudos = 1;
   reload_completed = 1;
+  reset_block_changes ();
 
   /* Pick a global pointer for -mabicalls.  Use $15 rather than $28
      for TARGET_NEWABI since the latter is a call-saved register.  */

gcc/config/rs6000/rs6000.c

@@ -13382,6 +13382,7 @@ rs6000_output_mi_thunk (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED,
   reload_completed = 1;
   epilogue_completed = 1;
   no_new_pseudos = 1;
+  reset_block_changes ();
 
   /* Mark the end of the (empty) prologue.  */
   emit_note (NOTE_INSN_PROLOGUE_END);

gcc/config/sh/sh.c

@@ -9494,6 +9494,7 @@ sh_output_mi_thunk (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED,
   epilogue_completed = 1;
   no_new_pseudos = 1;
   current_function_uses_only_leaf_regs = 1;
+  reset_block_changes ();
 
   emit_note (NOTE_INSN_PROLOGUE_END);
 

gcc/config/sparc/sparc.c

@@ -8361,6 +8361,7 @@ sparc_output_mi_thunk (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED,
   epilogue_completed = 1;
   no_new_pseudos = 1;
   current_function_uses_only_leaf_regs = 1;
+  reset_block_changes ();
 
   emit_note (NOTE_INSN_PROLOGUE_END);
 

gcc/gimple-low.c

@@ -123,8 +123,6 @@ lower_function_body (void)
     = blocks_nreverse (BLOCK_SUBBLOCKS (data.block));
 
   clear_block_marks (data.block);
-
-  reset_block_changes ();
 }
 
 struct tree_opt_pass pass_lower_cf =