From: rguenth Date: Tue, 11 Jan 2011 15:41:17 +0000 (+0000) Subject: 2011-01-11 Richard Guenther X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=commitdiff_plain;h=a33a5782168d47716bb70138e4fe69d2cb083aea 2011-01-11 Richard Guenther PR middle-end/45235 * emit-rtl.c (set_mem_attributes_minus_bitpos): Do not mark volatile MEMs as MEM_READONLY_P. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@168663 138bc75d-0d04-0410-961f-82ee72b054a4 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1a910c47c43..35b4a696a28 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2011-01-11 Richard Guenther + PR middle-end/45235 + * emit-rtl.c (set_mem_attributes_minus_bitpos): Do not mark + volatile MEMs as MEM_READONLY_P. + +2011-01-11 Richard Guenther + PR tree-optimization/47239 * tree-ssa-ccp.c (get_value_from_alignment): Punt for FUNCTION_DECLs. diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 42b2da0ea91..0839d0bff78 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -1698,7 +1698,8 @@ set_mem_attributes_minus_bitpos (rtx ref, tree t, int objectp, base = get_base_address (base); if (base && DECL_P (base) && TREE_READONLY (base) - && (TREE_STATIC (base) || DECL_EXTERNAL (base))) + && (TREE_STATIC (base) || DECL_EXTERNAL (base)) + && !TREE_THIS_VOLATILE (base)) MEM_READONLY_P (ref) = 1; /* If this expression uses it's parent's alias set, mark it such