llvm-project

8c6d002b - [AMDGPU] Reimplement VOP3 CMPX encoding fixup using PostEncoderMethod. NFCI. (#174799)

[AMDGPU] Reimplement VOP3 CMPX encoding fixup using PostEncoderMethod. NFCI. (#174799) These instructions have a field that we want to encode as the non-zero value EXEC_LO, but have the decoder accept any value. Reimplement this using PostEncoderMethod instead of custom code in AMDGPUMCCodeEmitter::encodeInstruction, so that it is controlled by the tablegen instruction definitions themselves.