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| author | Ulrich Weigand <uweigand@de.ibm.com> | 2004-10-28 12:47:21 +0000 |
|---|---|---|
| committer | Ulrich Weigand <uweigand@gcc.gnu.org> | 2004-10-28 12:47:21 +0000 |
| commit | fd326ba823f7a8cbb2f7c47a2a3d15a8e098a976 (patch) | |
| tree | a9bda2464d7b200ebd679487ccda3fef16f416b1 /gcc/recog.c | |
| parent | 4af46a327e490e1a24a353bc55f0d64631ba85de (diff) | |
| download | gcc-fd326ba823f7a8cbb2f7c47a2a3d15a8e098a976.zip gcc-fd326ba823f7a8cbb2f7c47a2a3d15a8e098a976.tar.gz gcc-fd326ba823f7a8cbb2f7c47a2a3d15a8e098a976.tar.bz2 | |
re PR target/15286 (ICE cause by reload)
PR target/15286
* final.c (alter_subreg): Compute correct offset to use with
paradoxical SUBREGs of memory operands.
* recog.c (general_operand): Allow paradoxical SUBREGs of
memory operands after reload.
* simplify-rtx.c (simplify_gen_subreg): Fail if simplify_subreg
has failed when passed a hard register.
From-SVN: r89752
Diffstat (limited to 'gcc/recog.c')
| -rw-r--r-- | gcc/recog.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/recog.c b/gcc/recog.c index 61e1186..eeb37af 100644 --- a/gcc/recog.c +++ b/gcc/recog.c @@ -936,8 +936,10 @@ general_operand (rtx op, enum machine_mode mode) #ifdef INSN_SCHEDULING /* On machines that have insn scheduling, we want all memory - reference to be explicit, so outlaw paradoxical SUBREGs. */ - if (MEM_P (sub) + reference to be explicit, so outlaw paradoxical SUBREGs. + However, we must allow them after reload so that they can + get cleaned up by cleanup_subreg_operands. */ + if (!reload_completed && MEM_P (sub) && GET_MODE_SIZE (mode) > GET_MODE_SIZE (GET_MODE (sub))) return 0; #endif |