diff options
| author | Richard Biener <rguenther@suse.de> | 2014-04-28 14:36:13 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2014-04-28 14:36:13 +0000 |
| commit | 22869a37b0d0bb3107a6a55d95a08dd243bc50fc (patch) | |
| tree | 51d32838b9998a12218d4e27734aff397aed9cb6 /gcc/tree-ssa-dce.c | |
| parent | 771c950116f7b08a45eecb6334954cfe8891a587 (diff) | |
re PR middle-end/60092 (posix_memalign not recognized to derive alias and alignment info)
2014-04-28 Richard Biener <rguenther@suse.de>
PR middle-end/60092
* builtins.def (DEF_C11_BUILTIN): Add.
(BUILT_IN_ALIGNED_ALLOC): Likewise.
* coretypes.h (enum function_class): Add function_c11_misc.
* tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Handle
BUILT_IN_ALIGNED_ALLOC like BUILT_IN_MALLOC.
(call_may_clobber_ref_p_1): Likewise.
* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Likewise.
(mark_all_reaching_defs_necessary_1): Likewise.
(propagate_necessity): Likewise.
(eliminate_unnecessary_stmts): Likewise.
* tree-ssa-ccp.c (evaluate_stmt): Handle BUILT_IN_ALIGNED_ALLOC.
ada/
* gcc-interface/utils.c: Define flag_isoc11.
lto/
* lto-lang.c: Define flag_isoc11.
* gcc.dg/tree-ssa/alias-32.c: New testcase.
* gcc.dg/vect/pr60092.c: Likewise.
From-SVN: r209863
Diffstat (limited to 'gcc/tree-ssa-dce.c')
| -rw-r--r-- | gcc/tree-ssa-dce.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/gcc/tree-ssa-dce.c b/gcc/tree-ssa-dce.c index 6389f238604..e1edb2ee3ac 100644 --- a/gcc/tree-ssa-dce.c +++ b/gcc/tree-ssa-dce.c @@ -231,6 +231,7 @@ mark_stmt_if_obviously_necessary (gimple stmt, bool aggressive) switch (DECL_FUNCTION_CODE (callee)) { case BUILT_IN_MALLOC: + case BUILT_IN_ALIGNED_ALLOC: case BUILT_IN_CALLOC: case BUILT_IN_ALLOCA: case BUILT_IN_ALLOCA_WITH_ALIGN: @@ -573,6 +574,7 @@ mark_all_reaching_defs_necessary_1 (ao_ref *ref ATTRIBUTE_UNUSED, switch (DECL_FUNCTION_CODE (callee)) { case BUILT_IN_MALLOC: + case BUILT_IN_ALIGNED_ALLOC: case BUILT_IN_CALLOC: case BUILT_IN_ALLOCA: case BUILT_IN_ALLOCA_WITH_ALIGN: @@ -776,7 +778,8 @@ propagate_necessity (bool aggressive) && is_gimple_call (def_stmt = SSA_NAME_DEF_STMT (ptr)) && (def_callee = gimple_call_fndecl (def_stmt)) && DECL_BUILT_IN_CLASS (def_callee) == BUILT_IN_NORMAL - && (DECL_FUNCTION_CODE (def_callee) == BUILT_IN_MALLOC + && (DECL_FUNCTION_CODE (def_callee) == BUILT_IN_ALIGNED_ALLOC + || DECL_FUNCTION_CODE (def_callee) == BUILT_IN_MALLOC || DECL_FUNCTION_CODE (def_callee) == BUILT_IN_CALLOC)) continue; } @@ -822,6 +825,7 @@ propagate_necessity (bool aggressive) && (DECL_FUNCTION_CODE (callee) == BUILT_IN_MEMSET || DECL_FUNCTION_CODE (callee) == BUILT_IN_MEMSET_CHK || DECL_FUNCTION_CODE (callee) == BUILT_IN_MALLOC + || DECL_FUNCTION_CODE (callee) == BUILT_IN_ALIGNED_ALLOC || DECL_FUNCTION_CODE (callee) == BUILT_IN_CALLOC || DECL_FUNCTION_CODE (callee) == BUILT_IN_FREE || DECL_FUNCTION_CODE (callee) == BUILT_IN_VA_END @@ -1229,7 +1233,8 @@ eliminate_unnecessary_stmts (void) special logic we apply to malloc/free pair removal. */ && (!(call = gimple_call_fndecl (stmt)) || DECL_BUILT_IN_CLASS (call) != BUILT_IN_NORMAL - || (DECL_FUNCTION_CODE (call) != BUILT_IN_MALLOC + || (DECL_FUNCTION_CODE (call) != BUILT_IN_ALIGNED_ALLOC + && DECL_FUNCTION_CODE (call) != BUILT_IN_MALLOC && DECL_FUNCTION_CODE (call) != BUILT_IN_CALLOC && DECL_FUNCTION_CODE (call) != BUILT_IN_ALLOCA && (DECL_FUNCTION_CODE (call) |