https://bugs.llvm.org/show_bug.cgi?id=32806
Bug ID: 32806
Summary: [x86 disassembler] Invalid used of 'w' suffix on push
and pop using 64-bit registers
Product: libraries
Version: 3.9
Hardware: Other
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: MC
Assignee: unassignedb...@nondot.org
Reporter: nholc...@wisc.edu
CC: llvm-bugs@lists.llvm.org
The following instruction accesses a 64-bit register, but the mnemonic
indicates that it is using a 16-bit register. I tried assembling the output of
LLVM using gas and got an error.
Bytes: 67 49 5e
Output: popw %r14
Error from gas: incorrect register `%r14' used with `w' suffix
Expected: popq %r14
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