Mercurial > hg > CbC > CbC_gcc
diff gcc/tree-ssa-copy.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 84e7813d76e9 |
children |
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--- a/gcc/tree-ssa-copy.c Thu Oct 25 07:37:49 2018 +0900 +++ b/gcc/tree-ssa-copy.c Thu Feb 13 11:34:05 2020 +0900 @@ -1,5 +1,5 @@ /* Copy propagation and SSA_NAME replacement support routines. - Copyright (C) 2004-2018 Free Software Foundation, Inc. + Copyright (C) 2004-2020 Free Software Foundation, Inc. This file is part of GCC. @@ -545,13 +545,12 @@ duplicate_ssa_name_ptr_info (copy_of[i].value, SSA_NAME_PTR_INFO (var)); /* Points-to information is cfg insensitive, - but alignment info might be cfg sensitive, if it - e.g. is derived from VRP derived non-zero bits. - So, do not copy alignment info if the two SSA_NAMEs - aren't defined in the same basic block. */ + but [E]VRP might record context sensitive alignment + info, non-nullness, etc. So reset context sensitive + info if the two SSA_NAMEs aren't defined in the same + basic block. */ if (var_bb != copy_of_bb) - mark_ptr_info_alignment_unknown - (SSA_NAME_PTR_INFO (copy_of[i].value)); + reset_flow_sensitive_info (copy_of[i].value); } else if (!POINTER_TYPE_P (TREE_TYPE (var)) && SSA_NAME_RANGE_INFO (var)