[SCEV] Fix potentially empty set for unsigned ranges
The following commit enabled the analysis of ranges for heap allocations:
22ca38da25e19a7c5fcfeb3f22159aba92ec381e
The range turns out to be empty in cases such as the one in test (which
is [1,1)), leading to an assertion failure. This patch fixes for the
same case.
Fixes https://github.com/llvm/llvm-project/issues/63856
Reviewed By: fhahn
Differential Revision: https://reviews.llvm.org/D159160
(cherry picked from commit
0609b65aaf03b083d282a4ffe8bf660351dac461)
projects / platform / upstream / llvm.git / commit