[llvm] [AMDGPU] Ignore inactive VGPRs in .vgpr_count (PR #133242)

[Diana Picus via llvm-commits]

rovka wrote:

> > Skip implicit defs unconditionally
> 
> I don't think it's safe to ignore all implicit def operands (but you can ignore the def operand of IMPLICIT_DEF). Do you need this to get the optimization you're hoping for? Is ignoring all use operands not enough?

The code was only ignoring IMPLICIT_DEF instructions, not implicit def operands :) Sorry about the confusing commit message.

https://github.com/llvm/llvm-project/pull/133242