From: Richard Guenther <rguenther@suse.de>
To: gcc-patches@gcc.gnu.org
Subject: [PATCH] Fixup missing host_integerp call
Date: Mon, 11 Apr 2011 15:48:00 -0000 [thread overview]
Message-ID: <alpine.LNX.2.00.1104111748040.810@zhemvz.fhfr.qr> (raw)
This fixes a missed check before calling tree_int_cst_low.
Bootstrapped and tested on x86_64-unknown-linux-gnu, applied.
Richard.
2011-04-11 Richard Guenther <rguenther@suse.de>
* gimplify.c (gimple_fold_indirect_ref): Check host_integerp
before calling tree_low_cst.
Index: gcc/gimplify.c
===================================================================
*** gcc/gimplify.c (revision 172252)
--- gcc/gimplify.c (working copy)
*************** gimple_fold_indirect_ref (tree t)
*** 4079,4087 ****
/* ((foo*)&vectorfoo)[1] -> BIT_FIELD_REF<vectorfoo,...> */
if (TREE_CODE (addr) == ADDR_EXPR
&& TREE_CODE (TREE_TYPE (addrtype)) == VECTOR_TYPE
! && useless_type_conversion_p (type, TREE_TYPE (TREE_TYPE (addrtype))))
{
! HOST_WIDE_INT offset = tree_low_cst (off, 0);
tree part_width = TYPE_SIZE (type);
unsigned HOST_WIDE_INT part_widthi
= tree_low_cst (part_width, 0) / BITS_PER_UNIT;
--- 4079,4088 ----
/* ((foo*)&vectorfoo)[1] -> BIT_FIELD_REF<vectorfoo,...> */
if (TREE_CODE (addr) == ADDR_EXPR
&& TREE_CODE (TREE_TYPE (addrtype)) == VECTOR_TYPE
! && useless_type_conversion_p (type, TREE_TYPE (TREE_TYPE (addrtype)))
! && host_integerp (off, 1))
{
! unsigned HOST_WIDE_INT offset = tree_low_cst (off, 1);
tree part_width = TYPE_SIZE (type);
unsigned HOST_WIDE_INT part_widthi
= tree_low_cst (part_width, 0) / BITS_PER_UNIT;
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