diff options
Diffstat (limited to 'gcc/simplify-rtx.c')
| -rw-r--r-- | gcc/simplify-rtx.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 926615ec86f..39a791d9890 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -1012,7 +1012,11 @@ simplify_unary_operation_1 (enum rtx_code code, enum machine_mode mode, rtx op) return rtl_hooks.gen_lowpart_no_emit (mode, op); #if defined(POINTERS_EXTEND_UNSIGNED) && !defined(HAVE_ptr_extend) - if (! POINTERS_EXTEND_UNSIGNED + /* As we do not know which address space the pointer is refering to, + we can do this only if the target does not support different pointer + or address modes depending on the address space. */ + if (target_default_pointer_address_modes_p () + && ! POINTERS_EXTEND_UNSIGNED && mode == Pmode && GET_MODE (op) == ptr_mode && (CONSTANT_P (op) || (GET_CODE (op) == SUBREG @@ -1034,7 +1038,11 @@ simplify_unary_operation_1 (enum rtx_code code, enum machine_mode mode, rtx op) return rtl_hooks.gen_lowpart_no_emit (mode, op); #if defined(POINTERS_EXTEND_UNSIGNED) && !defined(HAVE_ptr_extend) - if (POINTERS_EXTEND_UNSIGNED > 0 + /* As we do not know which address space the pointer is refering to, + we can do this only if the target does not support different pointer + or address modes depending on the address space. */ + if (target_default_pointer_address_modes_p () + && POINTERS_EXTEND_UNSIGNED > 0 && mode == Pmode && GET_MODE (op) == ptr_mode && (CONSTANT_P (op) || (GET_CODE (op) == SUBREG |