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| author | Sanjay Patel <spatel@rotateright.com> | 2019-09-19 16:31:17 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2019-09-19 16:31:17 +0000 |
| commit | 13e71ce69319d7acdd0e8d57b31c09545d9f2a45 (patch) | |
| tree | c0a6c30fea3bf9e670180b47af4ca12db7b3fd0f /llvm/lib/Analysis/LoopUnrollAnalyzer.cpp | |
| parent | 3ecab8e4555aee0b4aa10c413696a67f55948c39 (diff) | |
| download | bcm5719-llvm-13e71ce69319d7acdd0e8d57b31c09545d9f2a45.tar.gz bcm5719-llvm-13e71ce69319d7acdd0e8d57b31c09545d9f2a45.zip | |
[Float2Int] avoid crashing on unreachable code (PR38502)
In the example from:
https://bugs.llvm.org/show_bug.cgi?id=38502
...we hit infinite looping/crashing because we have non-standard IR -
an instruction operand is used before defined.
This and other unusual constructs are allowed in unreachable blocks,
so avoid the problem by using DominatorTree to step around landmines.
Differential Revision: https://reviews.llvm.org/D67766
llvm-svn: 372339
Diffstat (limited to 'llvm/lib/Analysis/LoopUnrollAnalyzer.cpp')
0 files changed, 0 insertions, 0 deletions
