[Bug target/42775] [4.4 regression] GCC fails to rebuild itself with STAGE1_CFLAGS=-O1

[ebotcazou at gcc dot gnu dot org]

------- Comment #6 from ebotcazou at gcc dot gnu dot org  2010-09-19 21:58 -------
tree-ssa-operands.c:copy_virtual_operands is miscompiled by delay slot
scheduling so the workaround is to use STAGE1_CFLAGS="-O1 -fno-delayed-branch".
 Another way out is probably to configure with --disable-stage1-checking.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42775