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(output_arg_descriptor): Do not stop searching if a USE

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for the static link or struct value register is found.

From-SVN: r5879
This commit is contained in:
Richard Stallman 1993-10-24 07:22:00 +00:00
parent 5e10b3cc7c
commit 3529be8371
1 changed files with 17 additions and 3 deletions
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20
gcc/config/pa/pa.c
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@ -3205,10 +3205,24 @@ output_arg_descriptor (insn)
for (prev_insn = PREV_INSN (insn); GET_CODE (prev_insn) == INSN;
prev_insn = PREV_INSN (prev_insn))
{
if (!(GET_CODE (PATTERN (prev_insn)) == USE &&
GET_CODE (XEXP (PATTERN (prev_insn), 0)) == REG &&
FUNCTION_ARG_REGNO_P (REGNO (XEXP (PATTERN (prev_insn), 0)))))
/* Terminate search for arguments if a non-USE insn is encountered
or a USE insn which does not specify an argument, STATIC_CHAIN,
or STRUCT_VALUE register. */
if (!(GET_CODE (PATTERN (prev_insn)) == USE
&& GET_CODE (XEXP (PATTERN (prev_insn), 0)) == REG
&& (FUNCTION_ARG_REGNO_P (REGNO (XEXP (PATTERN (prev_insn), 0)))
|| REGNO (XEXP (PATTERN (prev_insn), 0)) == STATIC_CHAIN_REGNUM
|| REGNO (XEXP (PATTERN (prev_insn), 0))
== STRUCT_VALUE_REGNUM)))
break;
/* If this is a USE for the STATIC_CHAIN or STRUCT_VALUE register,
then skip it and continue the loop since those are not encoded
in the argument relocation bits. */
if (REGNO (XEXP (PATTERN (prev_insn), 0)) == STATIC_CHAIN_REGNUM
|| REGNO (XEXP (PATTERN (prev_insn), 0)) == STRUCT_VALUE_REGNUM)
continue;
arg_mode = GET_MODE (XEXP (PATTERN (prev_insn), 0));
regno = REGNO (XEXP (PATTERN (prev_insn), 0));
if (regno >= 23 && regno <= 26)