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[Bug target/42509] [4.5 Regression] bootstrap failure in stage3 (integer overflow in preprocessor expression)
- From: "rearnsha at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 1 Apr 2010 19:30:49 -0000
- Subject: [Bug target/42509] [4.5 Regression] bootstrap failure in stage3 (integer overflow in preprocessor expression)
- References: <bug-42509-11764@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #14 from rearnsha at gcc dot gnu dot org 2010-04-01 19:30 -------
It appears that some of the annotations on the DImode reload are incorrect.
The store insn contains
(mem/c:SI (plus:SI (reg/f:SI 13 sp)
(const_int 276 [0x114])) [87 %sfp+-540 S4 A64])
and the load contains
(mem/c:DI (reg:SI 1 r1) [87 %sfp S8 A64])
where r1 has the value SP+272
Note that despite this, the %sfp expressions differ by 540 bytes and as a
result nonoverlapping_memrefs_p declares the operations not to overlap.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42509