diff options
Diffstat (limited to 'llvm/lib/CodeGen/VirtRegMap.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/VirtRegMap.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/VirtRegMap.cpp b/llvm/lib/CodeGen/VirtRegMap.cpp index 0ead2b8340a..ed7bef667e7 100644 --- a/llvm/lib/CodeGen/VirtRegMap.cpp +++ b/llvm/lib/CodeGen/VirtRegMap.cpp @@ -525,7 +525,7 @@ void VirtRegRewriter::rewrite() { // Preserve semantics of sub-register operands. unsigned SubReg = MO.getSubReg(); if (SubReg != 0) { - if (NoSubRegLiveness) { + if (NoSubRegLiveness || !MRI->shouldTrackSubRegLiveness(VirtReg)) { // A virtual register kill refers to the whole register, so we may // have to add implicit killed operands for the super-register. A // partial redef always kills and redefines the super-register. |
