[Zrouter-src-freebsd] ZRouter.org: push to FreeBSD HEAD tree
zrouter-src-freebsd at zrouter.org
zrouter-src-freebsd at zrouter.org
Tue May 8 20:49:39 UTC 2012
details: http://zrouter.org/hg/FreeBSD/head//rev/31ffb4589c7c
changeset: 480:31ffb4589c7c
user: Aleksandr Rybalko <ray at ddteam.net>
date: Tue May 08 23:49:09 2012 +0300
description:
Fix gcc to not fault on jemalloc build (import from FreeBSD)
diffstat:
head/contrib/gcc/config/mips/mips.c | 28 ++++++++++++++++++++++++++--
1 files changed, 26 insertions(+), 2 deletions(-)
diffs (53 lines):
diff -r bd5cc642bb16 -r 31ffb4589c7c head/contrib/gcc/config/mips/mips.c
--- a/head/contrib/gcc/config/mips/mips.c Tue May 08 23:45:38 2012 +0300
+++ b/head/contrib/gcc/config/mips/mips.c Tue May 08 23:49:09 2012 +0300
@@ -1297,6 +1297,20 @@
*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, or to the same object_block. */
@@ -1534,8 +1548,17 @@
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);
@@ -5671,7 +5694,8 @@
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. */
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