https://llvm.org/bugs/show_bug.cgi?id=30931
Bug ID: 30931
Summary: error: invalid instruction mnemonic 'movsl'
Product: clang
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: amine.kha...@reactos.org
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
This was revealed by
https://github.com/reactos/reactos/blob/master/reactos/ntoskrnl/include/internal/i386/ke.h#L738
and then reduced to:
void foo(void)
{
__asm rep movsd;
}
cl /c compiles it without errors, but clang-cl /c emits:
error: invalid instruction mnemonic 'movsl'
__asm rep movsd;
^
<inline asm>(2,6): note: instantiated into assembly here
rep movsd
^~~~~
1 error generated.
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