commit | 984251c7cb7965c732d84ba435ba454900652ac5 | [log] [tgz] |
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author | Adrian Prantl <aprantl@apple.com> | Tue Feb 13 19:54:00 2018 +0000 |
committer | Adrian Prantl <aprantl@apple.com> | Tue Feb 13 19:54:00 2018 +0000 |
tree | 4b67f834ce14698189b2d3c364b015478fb4a2a0 | |
parent | 4d06bef38d404253266c2e42209f6d036b04f0cc [diff] |
Document the shortcomings of DwarfExpression::addMachineReg(). Also make a drive-by-fix of a bug in the subregister scan code that only triggers with an incomplete or otherwise very irregular machine description. rdar://problem/37404493 This re-applies r324972 with an early exit in the case of a complete failure to make this commit NFC again as intended. llvm-svn: 325041