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[Bug rtl-optimization/28108] New: Some cse optimizations require hash collisions
- From: "amylaar at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 Jun 2006 19:40:19 -0000
- Subject: [Bug rtl-optimization/28108] New: Some cse optimizations require hash collisions
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
cse.c:hash_rtx has the same problem as found before in cse.c:cselib_hash_rtx
(PR rtl-optimization/22445). Hence, some optimiztions will only be done
if there is a convenient hash collision.
I.e. the MODE should not be used to calculate the hash value.
--
Summary: Some cse optimizations require hash collisions
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: amylaar at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28108