[LLVMbugs] [Bug 17380] New: LLVM ERROR: Cannot select... during final Firefox libxul LTO build

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=17380

            Bug ID: 17380
           Summary: LLVM ERROR: Cannot select... during final Firefox
                    libxul LTO build
           Product: tools
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: lto
          Assignee: unassignedbugs at nondot.org
          Reporter: octoploid at yandex.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

During the final libxul link of a Firefox LTO build I get:
...
LLVM ERROR: Cannot select: 0xa81da8e0: i32 = shl 0xa811adc0, 0xa8221d90
[ORD=7279256] [ID=23]
  0xa811adc0: i32 = srl 0xa80c7cb0, 0xa81abd10 [ORD=7279253] [ID=21]
    0xa80c7cb0: i32,ch = CopyFromReg 0x70314760, 0xa8415920 [ORD=7279253]
[ID=17]
      0xa8415920: i32 = Register %vreg5 [ID=1]
    0xa81abd10: i8 = Constant<1> [ID=2]
  0xa8221d90: i32 = Constant<1> [ID=16]
In function: _ZL20WriteSegmentToStringP14nsIInputStreamPvPKcjjPj

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