[LLVMbugs] [Bug 10029] New: VerifyCoalescing failure on patterns_dfa.c of 445.gobmk

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu May 26 15:38:55 PDT 2011


           Summary: VerifyCoalescing failure on patterns_dfa.c of
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: zwarich at apple.com
                CC: llvmbugs at cs.uiuc.edu

Running VerifyCoalescing on a TEST=simple build of 445.gobmk gives this
pre-coalescing error on 445.gobmk:

*** Bad machine code: Illegal virtual register for instruction ***
- function:    dfa_add_string
- basic block: create_dfa.exit 0x7fae313042a0 (BB#39) [7072L;7760L)
- instruction: 7168L    %vreg191<def> = LEA64r %vreg42<kill>, 4, %vreg42, 0,
%noreg; GR64:%vreg191,%vreg42,%vreg42
- operand 3:   %vreg42
Expected a GR64_NOSP register, but got a GR64 register

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