Eli Friedman 6bdabcf368 [CodeGen] Fix forward scan in MachineBasicBlock::computeRegisterLiveness. ...

The scan was incorrectly skipping the first instruction, so a register
could appear to be dead when it was actually live. This eventually leads
to a machine verifier failure and miscompile in arm-ldst-opt.

Differential Revision: https://reviews.llvm.org/D54491

llvm-svn: 346821

2018-11-14 00:39:29 +00:00

51 KiB

Raw Blame History

View Raw