The following path shouldfix
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55049
The patch was successfully bootstrapped on x86-64. Sorry, I can not
bootstrap with mx32 because of libraries absence.
Committed as rev. 192771.
2012-10-24 Vladimir Makarov <vmaka...@redhat.com>
PR bootstrap/55049
* lra-constraints.c (extract_loc_address_regs): Pass top_p for
ZERO_EXTEND operand.
svn diff --diff-cmd diff -x -up lra-constraints.c
Index: lra-constraints.c
===================================================================
--- lra-constraints.c (revision 192770)
+++ lra-constraints.c (working copy)
@@ -515,6 +515,12 @@ extract_loc_address_regs (bool top_p, en
case PC:
return;
+ case ZERO_EXTEND:
+ /* Pass TOP_P for displacement. */
+ extract_loc_address_regs (top_p, mode, as, &XEXP (*loc, 0), context_p,
+ code, index_code, modify_p, ad);
+ return;
+
case PLUS:
case LO_SUM:
/* When we have an address that is a sum, we must determine
