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| author | Richard Guenther <rguenther@suse.de> | 2012-09-20 14:46:32 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-09-20 14:46:32 +0000 |
| commit | f2ea3c151c65c472024cf22b2e772819578d2011 (patch) | |
| tree | 7c40cb4ca14799b642d2ac2fee157af59835524f /gcc/tree-data-ref.c | |
| parent | c0758df9210fdfce00d0d12bb66deca78e277659 (diff) | |
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re PR tree-optimization/54634 (miscompilation with -O3 -ftree-loop-distribution)
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.
From-SVN: r191567
Diffstat (limited to 'gcc/tree-data-ref.c')
| -rw-r--r-- | gcc/tree-data-ref.c | 6 |
1 files changed, 3 insertions, 3 deletions
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; |