[tree-ssa] bootstrap miscomparison failure on PPC

[Diego Novillo]

I was barking up the wrong tree, sorry.  The problem is not with the
patch to look up const_and_copies.  The problem is somewhere in the
expr.c/fold-const.c change.

Undoing the attached patch allows me to bootstrap on PPC again.  The
binary search found that we are miscompiling c-lex.o, c-typeck.o,
ggc-page.o, real.o and tree.o.

I have a toolchain built if you want me to try any suggestion.


Diego.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 00expr.c-fold-const.c.diff
Type: text/x-patch
Size: 9275 bytes
Desc: not available
URL: <https://gcc.gnu.org/pipermail/gcc/attachments/20030707/86808154/attachment.bin>