[Bug target/16925] ICC when building a m68hc11 cross-compiler on 64-bit architectures

[aurelien at aurel32 dot net]

------- Additional Comments From aurelien at aurel32 dot net  2004-09-11 13:36 -------
Created an attachment (id=7096)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=7096&action=view)
Patch to fix that bug

The first part of the patch adds the fact that CONST_INT could be a DImode rtx,
that needs to be split into two SImode rtx.

The second part fixes the core of the bug. On 32-bit hosts, this part is called
when a 32-bit integer has two be split into two 32-bit integers (CONST_INT is a
32-bit integer on 32-bit hosts, as well as SI mode). The problem is that
CONST_INT is a 64-bit integer on 64-bit hosts.

Actually this condition is always false on 32-bit hosts (a grep for
split_logical shows that the operands is always a DImode when mode == SImode).
This should also be always false on 64-bit hosts, that's why I removed that
code. 

I don't understand why that code is trying to convert one SImode rtx into two
SImode rtx, moreover in a function whose name is beginning by split.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16925