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| author | Craig Topper <craig.topper@intel.com> | 2018-11-05 22:08:17 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2018-11-05 22:08:17 +0000 |
| commit | def82a81af9c9df711a80f3f166623aafe37d4c8 (patch) | |
| tree | 1f6d951da980bb4d70e1b5588befe24dcc6c4bde /lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp | |
| parent | 1440107821cf72a1ce15ed626c9c17460e699d8e (diff) | |
| download | bcm5719-llvm-def82a81af9c9df711a80f3f166623aafe37d4c8.tar.gz bcm5719-llvm-def82a81af9c9df711a80f3f166623aafe37d4c8.zip | |
[X86] Don't turn any_extend from a mask register into a sign_extend during lowering. Add patterns to match any_extend during isel instead.
SimplifyDemandedBits can turn a sign_extend back into an any_extend and trigger an infinite loop. So instead legalize it the same way as a sign_extend, but preserve the opcode. Then just pattern match it the same as sign_extend during isel.
I don't have a reduced test case for such an infinite loop yet.
llvm-svn: 346170
Diffstat (limited to 'lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp')
0 files changed, 0 insertions, 0 deletions
