diff options
| author | Eric Botcazou <ebotcazou@adacore.com> | 2015-12-04 11:57:15 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2015-12-04 11:57:15 +0000 |
| commit | 03c00798828246afcfd998988c9fee8321b9313c (patch) | |
| tree | d944ebe798474d59975ae0092d6818956e8aeba8 /gcc/bitmap.c | |
| parent | a3eb8a52b5c1e1f3af616d88bf6a057dd4f81eb3 (diff) | |
| download | gcc-03c00798828246afcfd998988c9fee8321b9313c.zip gcc-03c00798828246afcfd998988c9fee8321b9313c.tar.gz gcc-03c00798828246afcfd998988c9fee8321b9313c.tar.bz2 | |
re PR middle-end/65958 (-fstack-check breaks alloca on architectures using generic stack checking)
PR middle-end/65958
* gimplify.c (struct gimplify_ctx): Turn boolean fields into 1-bit
fields, add keep_stack and reorder them.
(gimplify_bind_expr): Save gimplify_ctxp->keep_stack on entry then
set it to false. Do not insert a stack save/restore pair if it has
been set to true by the gimplification of the statements.
Restore it to the saved value on exit if it is still false.
(gimplify_vla_decl): Do not set gimplify_ctxp->save_stack here.
(gimplify_call_expr) <BUILT_IN_ALLOCA[_WITH_ALIGN]>: New case. Set
either save_stack or keep_stack depending on CALL_ALLOCA_FOR_VAR_P.
* doc/extend.texi (Variable Length): Document new behavior.
* doc/generic.texi (Blocks): Document new handling of VLAs.
From-SVN: r231260
Diffstat (limited to 'gcc/bitmap.c')
0 files changed, 0 insertions, 0 deletions