diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-data-ref.c | 6 |
2 files changed, 9 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8223bef..e526b91 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-09-20 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/54634 + * tree-data-ref.c (get_references_in_stmt): For now give + up for pure functions. + 2012-09-20 Chen Wei-Ren <chenwj@iis.sinica.edu.tw> doc/lto.texi: Correct typo. diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c index 4f6df91..0d647d7 100644 --- a/gcc/tree-data-ref.c +++ b/gcc/tree-data-ref.c @@ -4307,10 +4307,10 @@ get_references_in_stmt (gimple stmt, VEC (data_ref_loc, heap) **references) *references = NULL; /* ASM_EXPR and CALL_EXPR may embed arbitrary side effects. - Calls have side-effects, except those to const or pure - functions. */ + As we cannot model data-references to not spelled out + accesses give up if they may occur. */ if ((stmt_code == GIMPLE_CALL - && !(gimple_call_flags (stmt) & (ECF_CONST | ECF_PURE))) + && !(gimple_call_flags (stmt) & ECF_CONST)) || (stmt_code == GIMPLE_ASM && (gimple_asm_volatile_p (stmt) || gimple_vuse (stmt)))) clobbers_memory = true; |