[Backport to 19][LLVM->SPIRV] Cast the GEP base pointer to source type upon mismatch (#3255)#3615

vmaksimo merged 1 commit intoKhronosGroup:llvm_release_190KhronosGroup/SPIRV-LLVM-Translator:llvm_release_190from

wenju-he:19-cherry-pick-1be936678fd8bbeb224470eedbd19d78a833beb7wenju-he/SPIRV-LLVM-Translator:19-cherry-pick-1be936678fd8bbeb224470eedbd19d78a833beb7Copy head branch name to clipboard