diff options
| author | uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-08-02 17:26:40 +0000 |
|---|---|---|
| committer | uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-08-02 17:26:40 +0000 |
| commit | f439e54374b0f977641470856962727262fc7a0a (patch) | |
| tree | 0af91fa212ed59bfb793c37b66599d038488fb07 /gcc | |
| parent | cca7236e5fabb3791d494683d1f53f3c09d545e5 (diff) | |
| download | gcc-f439e54374b0f977641470856962727262fc7a0a.tar.gz | |
target/41089
* config/alpha/alpha.c (alpha_build_builtin_va_list): Mark __offset
as volatile.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@162826 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/alpha/alpha.c | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ad2b271a5bb..c37e93d3e13 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2010-08-02 Uros Bizjak <ubizjak@gmail.com> + + PR target/41089 + * config/alpha/alpha.c (alpha_build_builtin_va_list): Mark __offset + as volatile. + 2010-08-02 Sebastian Pop <sebastian.pop@amd.com> * common.opt (ftree-loop-distribute-patterns): New. diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c index 35d66b64a0a..1cfca586a87 100644 --- a/gcc/config/alpha/alpha.c +++ b/gcc/config/alpha/alpha.c @@ -5950,6 +5950,10 @@ alpha_build_builtin_va_list (void) integer_type_node); DECL_FIELD_CONTEXT (ofs) = record; DECL_CHAIN (ofs) = space; + /* ??? This is a hack, __offset is marked volatile to prevent + DCE that confuses stdarg optimization and results in + gcc.c-torture/execute/stdarg-1.c failure. See PR 41089. */ + TREE_THIS_VOLATILE (ofs) = 1; base = build_decl (BUILTINS_LOCATION, FIELD_DECL, get_identifier ("__base"), |