diff options
Diffstat (limited to 'gcc/tree-ssa-dce.c')
| -rw-r--r-- | gcc/tree-ssa-dce.c | 38 |
1 files changed, 2 insertions, 36 deletions
diff --git a/gcc/tree-ssa-dce.c b/gcc/tree-ssa-dce.c index 7ec3cc1..d231486 100644 --- a/gcc/tree-ssa-dce.c +++ b/gcc/tree-ssa-dce.c @@ -65,7 +65,6 @@ along with GCC; see the file COPYING3. If not see #include "tree-dfa.h" #include "cfgloop.h" #include "tree-scalar-evolution.h" -#include "tree-chkp.h" #include "tree-ssa-propagate.h" #include "gimple-fold.h" @@ -778,21 +777,7 @@ propagate_necessity (bool aggressive) && (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)) - { - gimple *bounds_def_stmt; - tree bounds; - - /* For instrumented calls we should also check used - bounds are returned by the same allocation call. */ - if (!gimple_call_with_bounds_p (stmt) - || ((bounds = gimple_call_arg (stmt, 1)) - && TREE_CODE (bounds) == SSA_NAME - && (bounds_def_stmt = SSA_NAME_DEF_STMT (bounds)) - && chkp_gimple_call_builtin_p (bounds_def_stmt, - BUILT_IN_CHKP_BNDRET) - && gimple_call_arg (bounds_def_stmt, 0) == ptr)) - continue; - } + continue; } FOR_EACH_SSA_TREE_OPERAND (use, stmt, iter, SSA_OP_USE) @@ -1276,23 +1261,6 @@ eliminate_unnecessary_stmts (void) && !gimple_plf (def_stmt, STMT_NECESSARY)) gimple_set_plf (stmt, STMT_NECESSARY, false); } - /* We did not propagate necessity for free calls fed - by allocation function to allow unnecessary - alloc-free sequence elimination. For instrumented - calls it also means we did not mark bounds producer - as necessary and it is time to do it in case free - call is not removed. */ - if (gimple_call_with_bounds_p (stmt)) - { - gimple *bounds_def_stmt; - tree bounds = gimple_call_arg (stmt, 1); - gcc_assert (TREE_CODE (bounds) == SSA_NAME); - bounds_def_stmt = SSA_NAME_DEF_STMT (bounds); - if (bounds_def_stmt - && !gimple_plf (bounds_def_stmt, STMT_NECESSARY)) - gimple_set_plf (bounds_def_stmt, STMT_NECESSARY, - gimple_plf (stmt, STMT_NECESSARY)); - } } /* If GSI is not necessary then remove it. */ @@ -1341,9 +1309,7 @@ eliminate_unnecessary_stmts (void) && DECL_FUNCTION_CODE (call) != BUILT_IN_MALLOC && DECL_FUNCTION_CODE (call) != BUILT_IN_CALLOC && !ALLOCA_FUNCTION_CODE_P - (DECL_FUNCTION_CODE (call)))) - /* Avoid doing so for bndret calls for the same reason. */ - && !chkp_gimple_call_builtin_p (stmt, BUILT_IN_CHKP_BNDRET)) + (DECL_FUNCTION_CODE (call))))) { something_changed = true; if (dump_file && (dump_flags & TDF_DETAILS)) |