mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-21 02:09:53 +02:00
6b2799621a
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18029 3c298f89-4303-0410-b956-a3cf2f4a3e73
55 lines
2.1 KiB
Diff
55 lines
2.1 KiB
Diff
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33256
|
|
|
|
--- a/gcc/config/mips/mips.c
|
|
+++ b/gcc/config/mips/mips.c
|
|
@@ -1252,6 +1252,20 @@ mips_split_const (rtx x, rtx *base, HOST
|
|
*base = x;
|
|
}
|
|
|
|
+/* Classify symbolic expression X, given that it appears in context
|
|
+ CONTEXT. */
|
|
+
|
|
+static enum mips_symbol_type
|
|
+mips_classify_symbolic_expression (rtx x)
|
|
+{
|
|
+ HOST_WIDE_INT offset;
|
|
+
|
|
+ mips_split_const (x, &x, &offset);
|
|
+ if (UNSPEC_ADDRESS_P (x))
|
|
+ return UNSPEC_ADDRESS_TYPE (x);
|
|
+
|
|
+ return mips_classify_symbol (x);
|
|
+}
|
|
|
|
/* Return true if SYMBOL is a SYMBOL_REF and OFFSET + SYMBOL points
|
|
to the same object as SYMBOL. */
|
|
@@ -1493,8 +1507,17 @@ mips_classify_address (struct mips_addre
|
|
info->type = ADDRESS_LO_SUM;
|
|
info->reg = XEXP (x, 0);
|
|
info->offset = XEXP (x, 1);
|
|
+ /* We have to trust the creator of the LO_SUM to do something vaguely
|
|
+ sane. Target-independent code that creates a LO_SUM should also
|
|
+ create and verify the matching HIGH. Target-independent code that
|
|
+ adds an offset to a LO_SUM must prove that the offset will not
|
|
+ induce a carry. Failure to do either of these things would be
|
|
+ a bug, and we are not required to check for it here. The MIPS
|
|
+ backend itself should only create LO_SUMs for valid symbolic
|
|
+ constants, with the high part being either a HIGH or a copy
|
|
+ of _gp. */
|
|
+ info->symbol_type = mips_classify_symbolic_expression (info->offset);
|
|
return (mips_valid_base_register_p (info->reg, mode, strict)
|
|
- && mips_symbolic_constant_p (info->offset, &info->symbol_type)
|
|
&& mips_symbolic_address_p (info->symbol_type, mode)
|
|
&& mips_lo_relocs[info->symbol_type] != 0);
|
|
|
|
@@ -5575,7 +5598,8 @@ print_operand_reloc (FILE *file, rtx op,
|
|
rtx base;
|
|
HOST_WIDE_INT offset;
|
|
|
|
- if (!mips_symbolic_constant_p (op, &symbol_type) || relocs[symbol_type] == 0)
|
|
+ symbol_type = mips_classify_symbolic_expression (op);
|
|
+ if (relocs[symbol_type] == 0)
|
|
fatal_insn ("PRINT_OPERAND, invalid operand for relocation", op);
|
|
|
|
/* If OP uses an UNSPEC address, we want to print the inner symbol. */
|