This commit fixes a bug where loop vectoriser interleaving made an
invalid transform with SVE.
Code such as:
1 void foo(int *restrict data1, int *restrict data2)
3 int counter = 1024;
4 while (counter--)
5 if (data1[counter] > data2[counter])
6 data1[counter] = data2[counter];
... was previously transformed in such a way that the predicated store
if (data1[counter] > data2[counter])
... was lost, resulting in bad codegen.
This bug was causing of some tests in llvm-test-suite to fail when built