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re PR rtl-optimization/29840 (build/genconditions ../../gcc/gcc/config/pa/pa.md > tmp-condmd.c: /bin/sh: 13354 Memory fault(coredump))

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2006-12-22  Paolo Bonzini  <bonzini@gnu.org>

	PR rtl-optimization/29840

	* fwprop.c (forward_propagate_into): Reject artificial uses/defs.
	(fwprop_init): Add DF_HARD_REGS to df_init call.

From-SVN: r120147
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Paolo Bonzini 2006-12-22 12:28:52 +00:00 • committed by Paolo Bonzini
parent af71363e45
commit 46fd10da92
2 changed files with 12 additions and 1 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2006-12-22 Paolo Bonzini <bonzini@gnu.org>
PR rtl-optimization/29840
* fwprop.c (forward_propagate_into): Reject artificial uses/defs.
(fwprop_init): Add DF_HARD_REGS to df_init call.
2006-12-21 Andrew Pinski <pinskia@gmail.com>
* tree-nested.c (create_tmp_var_for): Check for vector type

6
gcc/fwprop.c
View file

@ -846,6 +846,8 @@ forward_propagate_into (struct df_ref *use)
if (DF_REF_FLAGS (use) & DF_REF_READ_WRITE)
return;
if (DF_REF_FLAGS (use) & DF_REF_ARTIFICIAL)
return;
/* Only consider uses that have a single definition. */
defs = DF_REF_CHAIN (use);
@ -855,6 +857,8 @@ forward_propagate_into (struct df_ref *use)
def = defs->ref;
if (DF_REF_FLAGS (def) & DF_REF_READ_WRITE)
return;
if (DF_REF_FLAGS (def) & DF_REF_ARTIFICIAL)
return;
/* Do not propagate loop invariant definitions inside the loop if
we are going to unroll. */
@ -899,7 +903,7 @@ fwprop_init (void)
/* Now set up the dataflow problem (we only want use-def chains) and
put the dataflow solver to work. */
df = df_init (DF_SUBREGS | DF_EQUIV_NOTES);
df = df_init (DF_HARD_REGS | DF_SUBREGS | DF_EQUIV_NOTES);
df_chain_add_problem (df, DF_UD_CHAIN);
df_analyze (df);
df_dump (df, dump_file);