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Re: [RFA] Fix Ada bootstrap (was: 16: EH redirection)


> Indeed.  This patch is ok if it passes a bootstrap & regtest cycle.

It did on x86_64-suse-linux (with the problematic Ada change put back).  The 
remaining ACATS failures are:

		=== acats tests ===
FAIL:	c37213d
FAIL:	c37213h
FAIL:	c37213k
FAIL:	c37215h


Applied on the mainline.


2009-04-30  Eric Botcazou  <ebotcazou@adacore.com>

	* Makefile.in (dce.o): Add $(EXCEPT_H).
	* dce.c: Include except.h and delete redundant vector definitions.
	(deletable_insn_p): Return false for non-call insns that can throw
	if DF is running.


-- 
Eric Botcazou
Index: Makefile.in
===================================================================
--- Makefile.in	(revision 146988)
+++ Makefile.in	(working copy)
@@ -2680,7 +2680,7 @@ cse.o : cse.c $(CONFIG_H) $(SYSTEM_H) co
    $(EXCEPT_H) $(TARGET_H) $(PARAMS_H) rtlhooks-def.h $(TREE_PASS_H) \
    $(REAL_H) $(DF_H) $(DBGCNT_H)
 dce.o : dce.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \
-   $(TREE_H) $(REGS_H) hard-reg-set.h $(FLAGS_H) $(DF_H) cselib.h \
+   $(TREE_H) $(REGS_H) hard-reg-set.h $(FLAGS_H) $(EXCEPT_H) $(DF_H) cselib.h \
    $(DBGCNT_H) dce.h $(TIMEVAR_H) $(TREE_PASS_H) $(DBGCNT_H) $(TM_P_H)
 dse.o : dse.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \
    $(TREE_H) $(TM_P_H) $(REGS_H) hard-reg-set.h $(FLAGS_H) insn-config.h \
Index: dce.c
===================================================================
--- dce.c	(revision 146985)
+++ dce.c	(working copy)
@@ -27,6 +27,7 @@ along with GCC; see the file COPYING3.  
 #include "regs.h"
 #include "hard-reg-set.h"
 #include "flags.h"
+#include "except.h"
 #include "df.h"
 #include "cselib.h"
 #include "dce.h"
@@ -35,9 +36,6 @@ along with GCC; see the file COPYING3.  
 #include "dbgcnt.h"
 #include "tm_p.h"
 
-DEF_VEC_I(int);
-DEF_VEC_ALLOC_I(int,heap);
-
 
 /* -------------------------------------------------------------------------
    Core mark/delete routines
@@ -118,6 +116,10 @@ deletable_insn_p (rtx insn, bool fast, b
   if (!NONJUMP_INSN_P (insn))
     return false;
 
+  /* Similarly, we cannot delete other insns that can throw either.  */
+  if (df_in_progress && flag_non_call_exceptions && can_throw_internal (insn))
+    return false;
+
   body = PATTERN (insn);
   switch (GET_CODE (body))
     {

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