[PATCH] add VRP for bitwise OR and AND: v3
Sat Aug 12 13:42:00 GMT 2006
* tree-vrp.c (extract_range_from_binary_expr):
add value range propagation for bitwise AND/OR
Patch is against gcc-4.2-20060805.
Since unmodified gcc-4.2-20060805 snapshot does not bootstrap
for me, I only verified that "make all-gcc" build
of gcc-4.2-20060805 on i386-pc-linux-gnu
with this patch succeeds.
However, I successfully bootstrapped gcc-4.1.1 with this patch.
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 7896 bytes
Desc: not available
More information about the Gcc-patches