Displaying 1 result from an estimated 1 matches for "ae5170d3".
2014 Feb 05
2
[LLVMdev] SCEV implementation and limitations, do we need "pow"?
Hi,
I was looking at some bugs to play with, and I started with
http://llvm.org/bugs/show_bug.cgi?id=18606
As I commented there, a loop is unrolled and exhibit this pattern:
%mul.1 = mul i32 %mul, %mul
%mul.2 = mul i32 %mul.1, %mul.1
....
With an unroll factor of 32, the last multiply has 2^32 terms in its
SCEV expression.
(I mean I expect it would have those terms if I was patient