http://llvm.org/bugs/show_bug.cgi?id=9142
Summary: [mc] unknown token "%r14" in movq
Product: libraries
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: Backend: X86
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
This one-line assembly file:
movq 8+(%r14), %mm0
doesn't assemble with llvm-mc:
$ llvm-mc -assemble x.s -arch=x86_64
.section __TEXT,__text,regular,pure_instructions
x.s:1:17: error: unknown token in expression
movq 8+(%r14), %mm0
^
but GAS accepts it, if noisily:
nlewycky@ducttape:~$ as x.s -o x.o
x.s: Assembler messages:
x.s:1: Warning: missing operand; zero assumed
nlewycky@ducttape:~$ objdump -d x.o
x.o: file format elf64-x86-64
Disassembly of section .text:
0000000000000000 <.text>:
0: 41 0f 6f 46 08 movq 0x8(%r14),%mm0
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