diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/final.c | 54 |
2 files changed, 54 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cbb87ec..30b3685 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Fri Oct 19 15:24:39 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> + + * final.c (get_decl_from_op): New function. + (output_asm_insn): Call it; write "*" when item with decl is address. + 2001-10-19 Janis Johnson <janis187@us.ibm.com> * doc/install.texi (Specific, sparc-sun-solaris2*) Copy documentation diff --git a/gcc/final.c b/gcc/final.c index 38ec173..33d2ff6 100644 --- a/gcc/final.c +++ b/gcc/final.c @@ -244,6 +244,7 @@ static int add_bb_string PARAMS ((const char *, int)); static void notice_source_line PARAMS ((rtx)); static rtx walk_alter_subreg PARAMS ((rtx)); static void output_asm_name PARAMS ((void)); +static tree get_decl_from_op PARAMS ((rtx, int *)); static void output_operand PARAMS ((rtx, int)); #ifdef LEAF_REGISTERS static void leaf_renumber_regs PARAMS ((rtx)); @@ -3288,6 +3289,49 @@ output_asm_name () } } +/* If OP is a REG or MEM and we can find a decl corresponding to it or + its address, return that decl. Set *PADDRESSP to 1 if the decl + corresponds to the address of the object and 0 if to the object. */ + +static tree +get_decl_from_op (op, paddressp) + rtx op; + int *paddressp; +{ + tree decl; + int inner_addressp; + + *paddressp = 0; + + if (GET_CODE (op) == REG) + return REGNO_DECL (ORIGINAL_REGNO (op)); + else if (GET_CODE (op) != MEM) + return 0; + + if (MEM_DECL (op) != 0) + return MEM_DECL (op); + + /* Otherwise we have an address, so indicate it and look at the address. */ + *paddressp = 1; + op = XEXP (op, 0); + + /* First check if we have a decl for the address, then look at the right side + if it is a PLUS. Otherwise, strip off arithmetic and keep looking. + But don't allow the address to itself be indirect. */ + if ((decl = get_decl_from_op (op, &inner_addressp)) && ! inner_addressp) + return decl; + else if (GET_CODE (op) == PLUS + && (decl = get_decl_from_op (XEXP (op, 1), &inner_addressp))) + return decl; + + while (GET_RTX_CLASS (GET_CODE (op)) == '1' + || GET_RTX_CLASS (GET_CODE (op)) == '2') + op = XEXP (op, 0); + + decl = get_decl_from_op (op, &inner_addressp); + return inner_addressp ? 0 : decl; +} + /* Output text from TEMPLATE to the assembler output file, obeying %-directions to substitute operands taken from the vector OPERANDS. @@ -3497,14 +3541,14 @@ output_asm_insn (template, operands) for (i = 0; i < ops; i++) { - rtx op = operands[oporder[i]]; - tree decl = (GET_CODE (op) == REG ? REGNO_DECL (ORIGINAL_REGNO (op)) - : GET_CODE (op) == MEM ? MEM_DECL (op) - : 0); + int addressp; + tree decl = get_decl_from_op (operands[oporder[i]], &addressp); if (decl && DECL_NAME (decl)) { - fprintf (asm_out_file, "%s %s", wrote ? "," : ASM_COMMENT_START, + fprintf (asm_out_file, "%s %s%s", + wrote ? "," : ASM_COMMENT_START, + addressp ? "*" : "", IDENTIFIER_POINTER (DECL_NAME (decl))); wrote = 1; } |