git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146220
91177308-0d34-0410-b5e6-
96231b3b80d8
if (MRI->use_nodbg_empty(Reg))
return true;
if (MRI->use_nodbg_empty(Reg))
return true;
- // Ignoring debug uses is necessary so debug info doesn't affect the code.
- // This may leave a referencing dbg_value in the original block, before
- // the definition of the vreg. Dwarf generator handles this although the
- // user might not get the right info at runtime.
+ // Ignoring debug uses because debug info doesn't affect the code.
// BreakPHIEdge is true if all the uses are in the successor MBB being sunken
// into and they are all PHI nodes. In this case, machine-sink must break
// BreakPHIEdge is true if all the uses are in the successor MBB being sunken
// into and they are all PHI nodes. In this case, machine-sink must break