diff options
Diffstat (limited to 'gcc/alias.c')
| -rw-r--r-- | gcc/alias.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/alias.c b/gcc/alias.c index c762894fd1c..c581732d3a5 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -2035,6 +2035,18 @@ compare_base_decls (tree base1, tree base2) if (base1 == base2) return 1; + /* If we have two register decls with register specification we + cannot decide unless their assembler name is the same. */ + if (DECL_REGISTER (base1) + && DECL_REGISTER (base2) + && DECL_ASSEMBLER_NAME_SET_P (base1) + && DECL_ASSEMBLER_NAME_SET_P (base2)) + { + if (DECL_ASSEMBLER_NAME (base1) == DECL_ASSEMBLER_NAME (base2)) + return 1; + return -1; + } + /* Declarations of non-automatic variables may have aliases. All other decls are unique. */ if (!decl_in_symtab_p (base1) |