http://llvm.org/bugs/show_bug.cgi?id=9377
Summary: MC assembler doesn't handle x86 'str' with arbitrary
operand
Product: clang
Version: unspecified
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
Blocks: 4068
while compiling linux i get this error with integrated-as (gas as usual digests
it):
In file included from arch/x86/include/asm/elf.h:89:
arch/x86/include/asm/desc.h:253:15: error: invalid operand for instruction
asm volatile("str %0":"=r" (tr));
^
<inline asm>:1:2: note: instantiated into assembly here
str %eax
^
1 error generated.
(with unsigned long tr;)
'str' can operate on a register operand bigger than 16 bits (it'll zero extend
the selector value) so this is a legal form of the insn. i didn't check but
'sldt' may need a similar fix if it doesn't handle this form already.
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