[LLVMbugs] [Bug 5445] New: MIPS code generator crash when compiling GCC's _mulsc3.o

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=5445

           Summary: MIPS code generator crash when compiling GCC's _mulsc3.o
           Product: new-bugs
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: nbd at openwrt.org
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=3795)
 --> (http://llvm.org/bugs/attachment.cgi?id=3795)
Simplified bugpoint testcase

When trying to generate an llvm-gcc-4.2 toolchain with llvm r86543, I get the
following error while trying to generate _mulsc3.o:
cc1: error in backend: Cannot yet select: 0x1418710d8: f32 =
ConstantFP<-0.000000e+00>

When emitting LLVM bitcode and running llc on it, it changes to:
LLVM ERROR: Cannot yet select: 0x10181eed8: f32 = ConstantFP<-0.000000e+00>

Simplified bugpoint testcase is attached.


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