[Issue]: `amdgcn-cfg.py` fails to create CFG for the FA kernel - i.e., `attn_fwd` kernel

[ravil-mobile]

Problem Description

amdgcn-cfg.py fails to create an edge because there is the following basic block in the middle. The script didn't take into account an early kernel terminator

.LBB0_40:
	.loc	1 626 4                         ; flash-attention.py:626:4
	s_endpgm

The CFG logic needs to be fixed (somewhere around get_block_list function).

The output looks as follows If one deletes LBB0_40 label and a jump to this label

Operating System

Ubuntu 22.04.5 LTS

CPU

MI300X

GPU

AMD

ROCm Version

ROCm 6.2.3

ROCm Component

ROCm

Steps to Reproduce

No response

(Optional for Linux users) Output of /opt/rocm/bin/rocminfo --support

No response

Additional Information

No response