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| author | Jakub Jelinek <jakub@redhat.com> | 2003-07-11 23:04:56 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2003-07-11 23:04:56 +0200 |
| commit | 358b8f011484b845868d977d9bc0caaa096c96a3 (patch) | |
| tree | a3656da4466c54cd571525ec90e2a1bf57bccbda /gcc/optabs.c | |
| parent | 8634e925a9f53c086210ee461a0002278bc5c3d2 (diff) | |
| download | gcc-358b8f011484b845868d977d9bc0caaa096c96a3.zip gcc-358b8f011484b845868d977d9bc0caaa096c96a3.tar.gz gcc-358b8f011484b845868d977d9bc0caaa096c96a3.tar.bz2 | |
optabs.c (prepare_cmp_insn): Try cmpmemM first if it exists, then fall back to cmpstrM.
* optabs.c (prepare_cmp_insn): Try cmpmemM first if it exists,
then fall back to cmpstrM.
* builtins.c (expand_builtin_memcmp): Likewise.
* config/s390/s390-protos.h (s390_expand_cmpstr): Rename to...
(s390_expand_cmpmem): ... this.
* config/s390/s390.md (cmpmemdi, cmpmemsi, cmpmem_short_64,
cmpmem_short_31, cmpmem_long_64, cmpmem_long_31): Renamed
from cmpstr* patterns. Rename call to s390_expand_cmpstr
to s390_expand_cmpmem.
* config/s390/s390.c (s390_expand_cmpstr): Rename to...
(s390_expand_cmpstr): ... this. Rename cmpstr* instructions
to cmpmem*.
* config/i370/i370.md (cmpmemsi, cmpmemsi_1): Renamed from
cmpstr* patterns.
* doc/md.texi (cmpstrM): Describe as String compare insn, not
Block compare insn.
(cmpmemM): Add.
* gcc.dg/20030711-1.c: New test.
From-SVN: r69243
Diffstat (limited to 'gcc/optabs.c')
| -rw-r--r-- | gcc/optabs.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gcc/optabs.c b/gcc/optabs.c index b4023e3..3085b85 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -3579,6 +3579,40 @@ prepare_cmp_insn (rtx *px, rtx *py, enum rtx_code *pcomparison, rtx size, if (size == 0) abort (); +#ifdef HAVE_cmpmemqi + if (HAVE_cmpmemqi + && GET_CODE (size) == CONST_INT + && INTVAL (size) < (1 << GET_MODE_BITSIZE (QImode))) + { + result_mode = insn_data[(int) CODE_FOR_cmpmemqi].operand[0].mode; + result = gen_reg_rtx (result_mode); + emit_insn (gen_cmpmemqi (result, x, y, size, opalign)); + } + else +#endif +#ifdef HAVE_cmpmemhi + if (HAVE_cmpmemhi + && GET_CODE (size) == CONST_INT + && INTVAL (size) < (1 << GET_MODE_BITSIZE (HImode))) + { + result_mode = insn_data[(int) CODE_FOR_cmpmemhi].operand[0].mode; + result = gen_reg_rtx (result_mode); + emit_insn (gen_cmpmemhi (result, x, y, size, opalign)); + } + else +#endif +#ifdef HAVE_cmpmemsi + if (HAVE_cmpmemsi) + { + result_mode = insn_data[(int) CODE_FOR_cmpmemsi].operand[0].mode; + result = gen_reg_rtx (result_mode); + size = protect_from_queue (size, 0); + emit_insn (gen_cmpmemsi (result, x, y, + convert_to_mode (SImode, size, 1), + opalign)); + } + else +#endif #ifdef HAVE_cmpstrqi if (HAVE_cmpstrqi && GET_CODE (size) == CONST_INT |