[LLVMbugs] [Bug 3686] New: Assertion failed: (0 && " Do not know how to promote this operator's operand!"), function PromoteIntegerOperand, file LegalizeIntegerTypes.cpp, line 666.

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=3686

           Summary: Assertion failed: (0 && "Do not know how to promote this
                    operator's operand!"), function PromoteIntegerOperand,
                    file LegalizeIntegerTypes.cpp, line 666.
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: pawel.worach at gmail.com
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=2623)
 --> (http://llvm.org/bugs/attachment.cgi?id=2623)
Pre-processed _hldtoa.c

ccc -O2 -pipe -march=nocona -I/usr/src/lib/libc/include
-I/usr/src/lib/libc/../../include -I/usr/src/lib/libc/amd64
-D__DBINTERFACE_PRIVATE -I/usr/src/lib/libc/../../contrib/gdtoa -DINET6
-I/usr/obj/usr/src/lib/libc -I/usr/src/lib/libc/resolv -DPOSIX_MISTAKE
-I/usr/src/lib/libc/locale -DBROKEN_DES -DPORTMAP -DDES_BUILTIN
-I/usr/src/lib/libc/rpc -DYP -DNS_CACHING -DSYMBOL_VERSIONING -fstack-protector
-Wsystem-headers -Werror -Wall -Wno-format-y2k -Wno-uninitialized
-Wno-pointer-sign -c /usr/src/lib/libc/gdtoa/_hldtoa.c
PromoteIntegerOperand Op #0: 0x801ef4378: f80 = bit_convert 0x801ef2850
Assertion failed: (0 && "Do not know how to promote this operator's operand!"),
function PromoteIntegerOperand, file LegalizeIntegerTypes.cpp, line 666.

This only happens at -O2. I tried to reduce the testcase but my delta-foo is to
weak.


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