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| author | Richard Henderson <rth@redhat.com> | 2001-10-10 23:55:16 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2001-10-10 23:55:16 -0700 |
| commit | 7f16eed442ca3fe62781be3711e4fcd514f91769 (patch) | |
| tree | 7331573cf0aa23df8cd523a0e0d5aa960e5da357 /gcc | |
| parent | 59bee412cc7feeedb14c2ee52f418f2bf498ca99 (diff) | |
| download | gcc-7f16eed442ca3fe62781be3711e4fcd514f91769.zip gcc-7f16eed442ca3fe62781be3711e4fcd514f91769.tar.gz gcc-7f16eed442ca3fe62781be3711e4fcd514f91769.tar.bz2 | |
* combine.c (try_combine): Handle a SEQUENCE of one insn.
From-SVN: r46177
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/combine.c | 6 |
2 files changed, 15 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1b06df2..90ff4bc 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,12 @@ +2001-10-10 Richard Henderson <rth@redhat.com> + + * combine.c (try_combine): Handle a SEQUENCE of one insn. + +2001-10-10 Richard Henderson <rth@redhat.com> + + * langhooks.c: Include langhooks.h. + * Makefile.in (langhooks.o): Depend on it. + Wed Oct 10 23:49:06 EDT 2001 John Wehle (john@feith.com) * rtlanal.c (noop_move_p): Insns with a REG_RETVAL note diff --git a/gcc/combine.c b/gcc/combine.c index 43b1b9e9..12225db 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -2132,6 +2132,12 @@ try_combine (i3, i2, i1, new_direct_jump_p) } } + /* If we've split a jump pattern, we'll wind up with a sequence even + with one instruction. We can handle that below, so extract it. */ + if (m_split && GET_CODE (m_split) == SEQUENCE + && XVECLEN (m_split, 0) == 1) + m_split = PATTERN (XVECEXP (m_split, 0, 0)); + if (m_split && GET_CODE (m_split) != SEQUENCE) { insn_code_number = recog_for_combine (&m_split, i3, &new_i3_notes); |