[LLVMbugs] [Bug 6803] New: UNREACHABLE executed at MachineInstr.cpp:170!

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Wed Apr 7 08:32:31 PDT 2010


           Summary: UNREACHABLE executed at MachineInstr.cpp:170!
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P
         Component: Common Code Generator Code
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: rdivacky at freebsd.org
                CC: llvmbugs at cs.uiuc.edu

Created an attachment (id=4654)
 --> (http://llvm.org/bugs/attachment.cgi?id=4654)
test case

on amd64 with clang/llvm 100612 I am getting:

pes delta$ clang -c -O2  acpi_hpet.c

.... warnings ....

Unrecognized operand type
UNREACHABLE executed at MachineInstr.cpp:170!
Stack dump:
0.      Program arguments: /usr/local/bin/clang -cc1 -triple
x86_64-unknown-freebsd8.0 -S -disable-free -main-file-name acpi_hpet.c
-mrelocation-model static -mdisable-fp-elim -mconstructor-aliases
-munwind-tables -target-cpu x86-64 -resource-dir /usr/local/lib/clang/1.5 -O2
-fmessage-length 152 -fgnu-runtime -fdiagnostics-show-option
-fcolor-diagnostics -o /tmp/cc-ZXwvTd.s -x c acpi_hpet.c 
1.      <eof> parser at end of file
2.      Code generation
3.      Running pass 'Control Flow Optimizer' on function '@acpi_hpet_attach'
clang: error: compiler command failed due to signal 6 (use -v to see
pes delta$ 

this is quite recent (at most 2 weeks?)

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