Re: [v3] avoid alignment of static variables affecting stack's

On 12/10/2015 05:07 PM, Jan Beulich wrote: If not reaching if (TREE_CODE (origvar) == SSA_NAME) { gcc_assert (TREE_CODE (var) != VAR_DECL || (!DECL_EXTERNAL (var) && !DECL_HAS_VALUE_EXPR_P (var) && !TREE_STATIC (var)

[v3] avoid alignment of static variables affecting stack's

Function (or more narrow) scope static variables (as well as others not placed on the stack) should also not have any effect on the stack alignment. I noticed the issue first with Linux'es dynamic_pr_debug() construct using an 8-byte aligned sub-file-scope local variable. According to my checking

Re: [v3] avoid alignment of static variables affecting stack's

On 12/10/2015 01:38 PM, Jan Beulich wrote: * cfgexpand.c (expand_one_var): Exclude static and external variables when adjusting stack alignment related state. gcc/testsuite/ 2015-12-10 Jan Beulich * gcc.c-torture/execute/stkalign.c: New. ---

Re: [v3] avoid alignment of static variables affecting stack's

>>> On 10.12.15 at 14:53, wrote: > On 12/10/2015 01:38 PM, Jan Beulich wrote: >> --- 2015-12-09/gcc/cfgexpand.c >> +++ 2015-12-09/gcc/cfgexpand.c >> @@ -1544,12 +1544,15 @@ static HOST_WIDE_INT >> expand_one_var (tree var, bool toplevel, bool really_expand) >> { >>