Fredrik Holmqvist 0b514caa50 Move isl inside gcc dir
Moving it inside gcc dir allows gcc to detect and build isl while
building gcc. It has dependencies on other libraries that would
need to be prebuilt if we build it ourselves.

This is one of a few steps in building gcc with isl and allowing graphite
optimization flags.
2018-07-04 20:20:55 +02:00

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# Check that the constraints hoisted from the inner loop
# do not end up involving the inner loop iterator.
[t1, b] -> { A[i1, i2] -> [i1, 8 - 64b + i2] : exists (e0, e1 = [(-8 + t1 - i2)/64]: 64e1 = -8 + t1 - i2 and i2 >= 1 and i2 <= 127 and 2e0 >= -3 + i1 and 2e0 >= -1 - i1 and 2e0 <= 8 - i1 and 2e0 <= 6 + i1 and 2e0 >= -65 - 64b + i2 and 2e0 >= -1 + 64b - i2 and e0 <= 1 and e0 >= 0 and 2e0 <= 62 + 64b - i2 and b <= 1 and b >= 0 and i1 >= 1 and i1 <= 2046 and t1 >= 5 and t1 <= 8) }
[t1, b] -> { : b >= 0 and b <= 1 and t1 >= 5 and t1 <= 8 }
[t1] -> { [i0, i1, i5, a] -> atomic[x]}