[Bug target/116413] [LRA] [M68K] ICE: unrecognized insn in lra_set_insn_recog_data, at lra.cc:1036

[matz at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116413

Michael Matz <matz at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |matz at gcc dot gnu.org

--- Comment #8 from Michael Matz <matz at gcc dot gnu.org> ---
Yeah, reload doesn't expect ASHIFTs within operands here.  The below would fix
that:

diff --git a/gcc/final.cc b/gcc/final.cc
index eb9e065d9f0..5d911586de5 100644
--- a/gcc/final.cc
+++ b/gcc/final.cc
@@ -3146,6 +3146,7 @@ walk_alter_subreg (rtx *xp, bool *changed)
     case PLUS:
     case MULT:
     case AND:
+    case ASHIFT:
       XEXP (x, 0) = walk_alter_subreg (&XEXP (x, 0), changed);
       XEXP (x, 1) = walk_alter_subreg (&XEXP (x, 1), changed);
       break;