llvm-as: add page (#6496)

pages/common/llvm-as.md

@@ -0,0 +1,16 @@
+# llvm-as
+
+> LLVM Intermediate Representation (`.ll`) to Bitcode (`.bc`) assembler.
+> More information: <https://llvm.org/docs/CommandGuide/llvm-as.html>.
+
+- Assemble an IR file:
+
+`llvm-as -o {{path/to/out.bc}} {{path/to/source.ll}}`
+
+- Assemble an IR file and include a module hash in the produced Bitcode file:
+
+`llvm-as --module-hash -o {{path/to/out.bc}} {{path/to/source.ll}}`
+
+- Read an IR file from `stdin` and assemble it:
+
+`cat {{path/to/source.ll}} | llvm-as -o {{path/to/out.bc}}`