http://llvm.org/bugs/show_bug.cgi?id=3571
Summary: [2.5] Qt build failed
Product: libraries
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Common Code Generator Code
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Created an attachment (id=2551)
--> (http://llvm.org/bugs/attachment.cgi?id=2551)
Testcase
Currently Qt build is failed on 2.5 at least on mingw, which is definitely a
serious regression.
The assertion in codegen is triggered. Same can be seen on TOT:
$ ./llc bugpoint-reduced-simplified.bc
llc: /home/asl/proj/llvm/src/lib/CodeGen/LiveVariables.cpp:129: void
llvm::LiveVariables::HandleVirtRegUse(unsigned int, llvm::MachineBasicBlock*,
llvm::MachineInstr*): Assertion `MRI->getVRegDef(reg) && "Register use before
def!"' failed.
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