diff options
Diffstat (limited to 'gcc/config/fr30')
| -rw-r--r-- | gcc/config/fr30/fr30.h | 62 |
1 files changed, 2 insertions, 60 deletions
diff --git a/gcc/config/fr30/fr30.h b/gcc/config/fr30/fr30.h index 992788a..2f0cf99 100644 --- a/gcc/config/fr30/fr30.h +++ b/gcc/config/fr30/fr30.h @@ -977,61 +977,7 @@ do \ /* A C compound statement with a conditional `goto LABEL;' executed if X (an RTX) is a legitimate memory address on the target machine for a memory - operand of mode MODE. - - It usually pays to define several simpler macros to serve as subroutines for - this one. Otherwise it may be too complicated to understand. - - This macro must exist in two variants: a strict variant and a non-strict - one. The strict variant is used in the reload pass. It must be defined so - that any pseudo-register that has not been allocated a hard register is - considered a memory reference. In contexts where some kind of register is - required, a pseudo-register with no hard register must be rejected. - - The non-strict variant is used in other passes. It must be defined to - accept all pseudo-registers in every context where some kind of register is - required. - - Compiler source files that want to use the strict variant of this macro - define the macro `REG_OK_STRICT'. You should use an `#ifdef REG_OK_STRICT' - conditional to define the strict variant in that case and the non-strict - variant otherwise. - - Subroutines to check for acceptable registers for various purposes (one for - base registers, one for index registers, and so on) are typically among the - subroutines used to define `GO_IF_LEGITIMATE_ADDRESS'. Then only these - subroutine macros need have two variants; the higher levels of macros may be - the same whether strict or not. - - Normally, constant addresses which are the sum of a `symbol_ref' and an - integer are stored inside a `const' RTX to mark them as constant. - Therefore, there is no need to recognize such sums specifically as - legitimate addresses. Normally you would simply recognize any `const' as - legitimate. - - Usually `PRINT_OPERAND_ADDRESS' is not prepared to handle constant sums that - are not marked with `const'. It assumes that a naked `plus' indicates - indexing. If so, then you *must* reject such naked constant sums as - illegitimate addresses, so that none of them will be given to - `PRINT_OPERAND_ADDRESS'. - - On some machines, whether a symbolic address is legitimate depends on the - section that the address refers to. On these machines, define the macro - `ENCODE_SECTION_INFO' to store the information into the `symbol_ref', and - then check for it here. When you see a `const', you will have to look - inside it to find the `symbol_ref' in order to determine the section. - - The best way to modify the name string is by adding text to the beginning, - with suitable punctuation to prevent any ambiguity. Allocate the new name - in `saveable_obstack'. You will have to modify `ASM_OUTPUT_LABELREF' to - remove and decode the added text and output the name accordingly, and define - `STRIP_NAME_ENCODING' to access the original name string. - - You can check the information stored here into the `symbol_ref' in the - definitions of the macros `GO_IF_LEGITIMATE_ADDRESS' and - `PRINT_OPERAND_ADDRESS'. - - Used in explow.c, recog.c, reload.c. */ + operand of mode MODE. */ /* On the FR30 we only have one real addressing mode - an address in a register. There are three special cases however: @@ -1293,12 +1239,8 @@ do \ /* A C compound statement to output to stdio stream STREAM the assembler syntax for an instruction operand that is a memory reference whose address is X. X - is an RTL expression. + is an RTL expression. */ - On some machines, the syntax for a symbolic address depends on the section - that the address refers to. On these machines, define the macro - `ENCODE_SECTION_INFO' to store the information into the `symbol_ref', and - then check for it here. *Note Assembler Format::. */ #define PRINT_OPERAND_ADDRESS(STREAM, X) fr30_print_operand_address (STREAM, X) /* If defined, C string expressions to be used for the `%R', `%L', `%U', and |