[LLVMbugs] [Bug 16169] New: Invalid PPC CTR loop [powerpc-darwin8]

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=16169

            Bug ID: 16169
           Summary: Invalid PPC CTR loop [powerpc-darwin8]
           Product: new-bugs
           Version: trunk
          Hardware: Macintosh
                OS: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: fang at csl.cornell.edu
                CC: hfinkel at anl.gov, llvmbugs at cs.uiuc.edu
    Classification: Unclassified

During stage-2 of bootstrap on powerpc-darwin8 (at r182745 on master/trunk), I
see:

Invalid PPC CTR loop!
UNREACHABLE executed at
/Users/fang/local/src/LLVM-svn/llvm/lib/Target/PowerPC/PPCCTRLoops.cpp:613!
Stack dump:
0.      Program arguments:
/Volumes/Isolde/builds/LLVM/gcc40-cmake-build/bin/clang-3.4 -cc1 -triple
powerpc-apple-macosx10.4.0 -S -disable-free -main-file-name sanitizer_printf.cc
-mrelocation-model pic -pic-level 2 -masm-verbose -munwind-tables
-coverage-file /tmp/sanitizer_printf-pTtpOX.s -resource-dir
/Volumes/Isolde/builds/LLVM/gcc40-cmake-build/bin/../lib/clang/3.4 -isysroot
/Developer/SDKs/MacOSX10.4u.sdk -D _DEBUG -D __STDC_CONSTANT_MACROS -D
__STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I
/usr/lib/gcc/powerpc-apple-darwin8/4.0.1/include -I
/Users/fang/local/src/LLVM-svn/gcc40-stage2-build/projects/compiler-rt/lib/sanitizer_common
-I
/Users/fang/local/src/LLVM-svn/llvm/projects/compiler-rt/lib/sanitizer_common
-I /Users/fang/local/src/LLVM-svn/gcc40-stage2-build/include -I
/Users/fang/local/src/LLVM-svn/llvm/include -I
/Users/fang/local/src/LLVM-svn/llvm/projects/compiler-rt/include -O3 -Wall -W
-Wno-unused-parameter -Wwrite-strings -Wno-long-long -Wnon-virtual-dtor
-Wno-variadic-macros -Wno-c99-extensions -Wno-non-virtual-dtor -pedantic
-fconst-strings -fdeprecated-macro -fno-dwarf2-cfi-asm -fno-dwarf-directory-asm
-fno-autolink -fdebug-compilation-dir
/Users/fang/local/src/LLVM-svn/gcc40-stage2-build/projects/compiler-rt/lib/sanitizer_common
-ferror-limit 19 -fmessage-length 80 -fvisibility hidden
-fvisibility-inlines-hidden -mstackrealign -fno-builtin -fblocks
-fblocks-runtime-optional -fno-rtti -fobjc-runtime=macosx-10.4.0
-fobjc-default-synthesize-properties -fencode-extended-block-signature
-fno-common -fdiagnostics-show-option -fcolor-diagnostics -backend-option
-vectorize-loops -o /tmp/sanitizer_printf-pTtpOX.s -x c++
/Users/fang/local/src/LLVM-svn/llvm/projects/compiler-rt/lib/sanitizer_common/sanitizer_printf.cc 
1.      <eof> parser at end of file
2.      Code generation
3.      Running pass 'Function Pass Manager' on module
'/Users/fang/local/src/LLVM-svn/llvm/projects/compiler-rt/lib/sanitizer_common/sanitizer_printf.cc'.
4.      Running pass 'PowerPC CTR Loops Verify' on function
'@_ZN11__sanitizerL14AppendUnsignedEPPcPKcyhh'

Any idea what this is about?

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