https://bugs.llvm.org/show_bug.cgi?id=43610
Bug ID: 43610
Summary: [x86] After r350966, on asm typo, Assertion failed:
(isa<X>(Val) && "cast<Ty>() argument of incompatible
type!"), function cast
Product: new-bugs
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
After https://reviews.llvm.org/rL350966 ("[X86] Fix incomplete handling of
register-assigned variables in parsing"), a minor typo in assembly, namely
forgetting a comma, leads to an assertion failure:
Assertion failed: (isa<X>(Val) && "cast<Ty>() argument of incompatible type!"),
function cast, file /home/dim/src/llvm/trunk/include/llvm/Support/Casting.h,
line 255.
Stack dump:
0. Program arguments: /home/dim/ins/llvm-trunk-r350966/bin/clang -cc1as
-triple x86_64-- -filetype obj asmtypo.s
0 clang 0x00000000028b14b8
llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
1 clang 0x00000000028af3d8 llvm::sys::RunSignalHandlers() + 248
2 clang 0x00000000028b1d58
llvm::sys::PrintStackTraceOnErrorSignal(llvm::StringRef, bool) + 1272
3 libthr.so.3 0x00000008043d0430 _pthread_sigmask + 1328
Abort trap
Test case:
// clang -cc1as -triple x86_64-- -filetype obj asmtypo.s
movl %ebx %eax
Before r350965, this resulted in a more regular error message:
$ ~/ins/llvm-trunk-r350965/bin/clang -cc1as -triple x86_64-- -filetype obj
asmtypo.s
asmtypo.s:2:11: error: unexpected token in argument list
movl %ebx %eax
^
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