[LLVMdev] llvm-mc fixups

Greg Fitzgerald garious at gmail.com
Wed Sep 12 17:54:27 PDT 2012

When I use llvm-mc’s ‘-show-encoding’, it only goes as far as printing

$ echo -e "adr r0, lbl\nnop\nlbl:" | llvm-mc -triple=thumbv7 -show-encoding


@ encoding: [A,0xa0]

@    fixup A – offset: 0, value: lbl, kind: fixup_thumb_adr_pcrel_10

To find out that it is encoded as 0xa001, I can do:

$ echo -e "adr r0, lbl\nnop\nlbl:" | llvm-mc -triple=thumbv7
-show-encoding -filetype=obj
> tmp.o

$ llvm-objdump -d tmp.o

Is there a way to get that encoding directly from llvm-mc?


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