[LLVMbugs] [Bug 13218] New: Trying to build Emacs-24.1 with clang -O4 causes Clang to crash

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=13218

             Bug #: 13218
           Summary: Trying to build Emacs-24.1 with clang -O4 causes Clang
                    to crash
           Product: clang
           Version: unspecified
          Platform: Macintosh
        OS/Version: MacOS X
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: johnw at boostpro.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


I'm using the current clang-3.1 release.  I downloaded emacs-24.1 and 
configured with:

  $ ./configure --prefix=/usr/local/stow/emacs-release-macport-opt4 --with-mac 
CC=clang CPPFLAGS=-I/opt/local/include CFLAGS=-O4 -fomit-frame-pointer 
CXX=clang++ CXXFLAGS= LD=clang LDFLAGS=-O4 -fomit-frame-pointer
-L/opt/local/lib

Then typed "make".  Here's what I get during the build:

clang   -Wimplicit-function-declaration -Wold-style-definition 
-Wdeclaration-after-statement  -DHAVE_CONFIG_H -I. -I../src -I../lib 
-I/Users/johnw/Products/emacs/release-macport-opt4/lib-src 
-I/Users/johnw/Products/emacs/release-macport-opt4/lib-src/../src 
-I/Users/johnw/Products/emacs/release-macport-opt4/lib-src/../lib  -O4 
-fomit-frame-pointer -L/opt/local/lib -I/opt/local/include -O4 
-fomit-frame-pointer -DEMACS_NAME="\"GNU Emacs\"" \
      -DVERSION="\"24.1\"" 
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c \
      regex.o ../lib/libgnu.a  -o etags
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:1285:15: 
warning: enumeration value
      'at_end' not handled in switch [-Wswitch]
      switch (argbuffer[i].arg_type)
              ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:2795:16: 
warning: 12 enumeration
      values not handled in switch: 'st_C_objprot', 'st_C_objimpl', 
'st_C_objend'... [-Wswitch]
       switch (toktype)
               ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:2812:16: 
warning: 13 enumeration
      values not handled in switch: 'st_none', 'st_C_objprot', 
'st_C_objimpl'... [-Wswitch]
       switch (toktype)
               ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:2782:12: 
warning: enumeration
      values 'tinbody' and 'tignore' not handled in switch [-Wswitch]
   switch (typdef)
           ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:2822:12: 
warning: 11 enumeration
      values not handled in switch: 'st_none', 'st_C_objprot', 
'st_C_objimpl'... [-Wswitch]
   switch (toktype)
           ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:2867:16: 
warning: 14 enumeration
      values not handled in switch: 'st_none', 'st_C_objend', 
'st_C_gnumacro'... [-Wswitch]
       switch (toktype)
               ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:2864:12: 
warning: enumeration
      values 'otagseen', 'ocatseen', and 'omethodtag' not handled in switch 
[-Wswitch]
   switch (objdef)
           ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:2971:13: 
warning: 4 enumeration
      values not handled in switch: 'tkeyseen', 'tinbody', 'tend'... [-Wswitch]
           switch (typdef)
                   ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:2962:16: 
warning: 7 enumeration
      values not handled in switch: 'fdefunname', 'foperator', 'fstartlist'... 
[-Wswitch]
       switch (fvdef)
               ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:2934:12: 
warning: 12 enumeration
      values not handled in switch: 'st_C_objprot', 'st_C_objimpl', 
'st_C_objend'... [-Wswitch]
   switch (toktype)
           ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:3459:13: 
warning: 8 enumeration
      values not handled in switch: 'fvnone', 'fdefunkey', 'fdefunname'... 
[-Wswitch]
                  switch (fvdef)
                          ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:3456:16: 
warning: enumeration
      values 'ddefineseen' and 'dignorerest' not handled in switch [-Wswitch]
              switch (definedef)
                      ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:3510:12: 
warning: 9 enumeration
      values not handled in switch: 'onone', 'oprotocol', 'oimplementation'... 
[-Wswitch]
          switch (objdef)
                  ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:3592:12: 
warning: 10 enumeration
      values not handled in switch: 'onone', 'oprotocol', 'oimplementation'... 
[-Wswitch]
          switch (objdef)
                  ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:3643:12: 
warning: enumeration
      values 'tkeyseen' and 'tignore' not handled in switch [-Wswitch]
          switch (typdef)
                  ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:3681:12: 
warning: 7 enumeration
      values not handled in switch: 'fvnone', 'fdefunkey', 'fdefunname'... 
[-Wswitch]
          switch (fvdef)
                  ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:3721:16: 
warning: 8 enumeration
      values not handled in switch: 'fvnone', 'fdefunkey', 'fdefunname'... 
[-Wswitch]
              switch (fvdef)
                      ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:3749:12: 
warning: 7 enumeration
      values not handled in switch: 'fdefunkey', 'fdefunname', 'foperator'... 
[-Wswitch]
          switch (fvdef)
                  ^
/Users/johnw/Products/emacs/release-macport-opt4/lib-src/etags.c:3777:12: 
warning: enumeration value
      'snone' not handled in switch [-Wswitch]
          switch (structdef)
                  ^
19 warnings generated.
clang: error: unable to execute command: Segmentation fault: 11
clang: error: linker command failed due to signal (use -v to see invocation)

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