Survey whisper.cpp for vector setup instructions - Githubissues

thixotropist / ghidra_import_tests

Experimental framework for testing Ghidra binary import support

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Survey whisper.cpp for vector setup instructions #16

Closed thixotropist closed 9 months ago

thixotropist commented 9 months ago

Scan different whisper.cpp riscv-64 binaries for vsetvli and vsetivli instruction patterns.

document the variations, especially showing how to interpret key vector fields like element length and the LMUL multiplier.
show common use cases, for instance zeroing out memory when the byte alignment is unknown to the compiler.
generate supporting Ghidra sleigh instructions for any vsetvli and vsetivli instructions found in exemplars, adding them to the Ghidra isa_ext branch.

Where possible, show source code and non-vector assembly instructions corresponding to the vsetvli and vsetivli instructions.