http://llvm.org/bugs/show_bug.cgi?id=5367
Summary: Regalloc lost regclass information
Product: libraries
Version: trunk
Platform: PC
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: Backend: ARM
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Consider the bytecode attached. Running llc fails with:
$ ./llc bugpoint-reduced-simplified.ll -mcpu=cortex-a8 -enable-unsafe-fp-math
llc: /home/asl/proj/llvm/src_arm/lib/CodeGen/LowerSubregs.cpp:232:
bool<unnamed>::LowerSubregsInstructionPass::LowerInsert(llvm::MachineInstr*):
Assertion `DstSubReg && "invalid subregister index for register"' failed.
it seems that it tries to emit insert_subreg instruction for high DP register,
which does not have 32-bit subregs. This actually means that regclass
information was lost during RA.
--
Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.
_______________________________________________
LLVMbugs mailing list
[email protected]
http://lists.cs.uiuc.edu/mailman/listinfo/llvmbugs
