On Linux/x86, revision 164250:
http://gcc.gnu.org/ml/gcc-cvs/2010-09/msg00544.html
caused
FAIL: gcc.target/i386/funcspec-1.c scan-assembler addps[ \t]
FAIL: gcc.target/i386/funcspec-1.c scan-assembler fsubs[ \t]
FAIL: gfortran.dg/vect/fast-math-pr38968.f90 scan-tree-dump vect "vectorized 1
loops"
--
Summary: [4.6 regression] New x86 test failures
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: hjl dot tools at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45662