https://bugs.llvm.org/show_bug.cgi?id=39124
Bug ID: 39124
Summary: ppc64el assertion failure in
llvm::AsmPrinter::EmitJumpTableEntry
Product: libraries
Version: 7.0
Hardware: Other
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Common Code Generator Code
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Created attachment 20938
--> https://bugs.llvm.org/attachment.cgi?id=20938&action=edit
Compilation output including backtrace
The following assertion failure has been seen with llvm-7.0.0:
clang-7:
/home/phargrov/llvm-7.0.0.src/lib/CodeGen/AsmPrinter/AsmPrinter.cpp:1759: void
llvm::AsmPrinter::EmitJumpTableEntry(const llvm::MachineJumpTableInfo*, const
llvm::MachineBasicBlock*, unsigned int) const: Assertion `MBB &&
MBB->getNumber() >= 0 && "Invalid basic block"' failed.
However, 4.0, 5.0 and 6.0 show the same, while 3.7 and 3.8 do not.
The same code does not generate any such failure on (at least) x86, x86-64,
arm, aarch64, sparc64 (for various 4.0, 5.0 or 6.0 versions).
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