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| author | Richard Stallman <rms@gnu.org> | 1993-10-24 07:22:00 +0000 |
|---|---|---|
| committer | Richard Stallman <rms@gnu.org> | 1993-10-24 07:22:00 +0000 |
| commit | 3529be8371acdc29c62bcb73f59cb54c6be85349 (patch) | |
| tree | 2ec4449ce486073b3d34848f1940372f07e2586c /gcc/config/pa | |
| parent | 5e10b3cc7c179bfd8939e000027a5cc4953d410d (diff) | |
| download | gcc-3529be8371acdc29c62bcb73f59cb54c6be85349.zip gcc-3529be8371acdc29c62bcb73f59cb54c6be85349.tar.gz gcc-3529be8371acdc29c62bcb73f59cb54c6be85349.tar.bz2 | |
(output_arg_descriptor): Do not stop searching if a USE
for the static link or struct value register is found.
From-SVN: r5879
Diffstat (limited to 'gcc/config/pa')
| -rw-r--r-- | gcc/config/pa/pa.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/gcc/config/pa/pa.c b/gcc/config/pa/pa.c index 83590e5..239d8ce 100644 --- a/gcc/config/pa/pa.c +++ b/gcc/config/pa/pa.c @@ -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) |