[llvm] [CodeGen] [AMDGPU] Attempt DAGCombine for fmul with select to ldexp (PR #111109)

[Vikash Gupta via llvm-commits]

vg0204 wrote:

@arsenm, as you were saying there is no issue with bitcast, but owing to some bizarre dokcer issue, that came. On baremetal machine, as you suspected opt entir line(a preprocess command invoked) is creating problem, as it is entirely executed as it is on terminal, thus unable to locate opt binary, as no stripping has been done for it like llc tool! Tested this by hardcoding the right opt path 

https://github.com/llvm/llvm-project/pull/111109