http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49468
Oleg Endo <oleg.e...@t-online.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #24625|0 |1
is obsolete| |
--- Comment #7 from Oleg Endo <oleg.e...@t-online.de> 2011-09-25 12:48:24 UTC
---
Created attachment 25360
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25360
Proposed patch
The last version of the patch fails the test
gcc.c-torture/execute/arith-rand-ll.c for -m2a-single -mb and multiple
optimization levels with the following error:
internal compiler error: in change_address_1, at emit-rtl.c:1994
The attached version fixes some of the failures but still fails the test above
with -m2a-single -mb -O2. Other optimization levels work fine.
The problem is caused by the define_insn_and_split "*abssi2". It even fails if
the "*abssi2" splits into nothing but a simple register copy (movdi) or
comparison insn.
I'm now testing the patch without the DI abs parts and will submit it if passes
without new failures.
Cheers,
Oleg
