diff options
Diffstat (limited to 'gcc/cfgexpand.c')
| -rw-r--r-- | gcc/cfgexpand.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c index 4bfdc5fed74..695e4ef0ef9 100644 --- a/gcc/cfgexpand.c +++ b/gcc/cfgexpand.c @@ -866,7 +866,8 @@ dump_stack_var_partition (void) static void expand_one_stack_var_at (tree decl, HOST_WIDE_INT offset) { - HOST_WIDE_INT align; + /* Alignment is unsigned. */ + unsigned HOST_WIDE_INT align; rtx x; /* If this fails, we've overflowed the stack frame. Error nicely? */ @@ -879,8 +880,10 @@ expand_one_stack_var_at (tree decl, HOST_WIDE_INT offset) offset -= frame_phase; align = offset & -offset; align *= BITS_PER_UNIT; - if (align > STACK_BOUNDARY || align == 0) + if (align == 0) align = STACK_BOUNDARY; + else if (align > MAX_SUPPORTED_STACK_ALIGNMENT) + align = MAX_SUPPORTED_STACK_ALIGNMENT; DECL_ALIGN (decl) = align; DECL_USER_ALIGN (decl) = 0; |