[MacPorts] #33207: clang-3.1 LTO broken

[MacPorts]

#33207: clang-3.1 LTO broken
--------------------------------+-------------------------------------------
 Reporter:  mmoll@…             |       Owner:  jeremyhu@…           
     Type:  defect              |      Status:  new                  
 Priority:  Normal              |   Milestone:                       
Component:  ports               |     Version:  2.0.3                
 Keywords:  llvm clang LTO      |        Port:  clang-3.1            
--------------------------------+-------------------------------------------
 Take the following minimal program called, say, test.cpp:
 {{{
 int main(int,char**) { return 0; }
 }}}
 and compile it with -O4. This is what I see:
 {{{
 clang++-mp-3.1 -O4 test.cpp -o test -v
 clang version 3.1 (trunk 149973)
 Target: x86_64-apple-darwin11.3.0
 Thread model: posix
  "/opt/local/libexec/llvm-3.1/bin/clang" -cc1 -triple x86_64-apple-
 macosx10.7.0 -emit-llvm-bc -disable-free -main-file-name test.cpp -pic-
 level 1 -mdisable-fp-elim -masm-verbose -munwind-tables -target-cpu core2
 -target-linker-version 127.2 -v -resource-dir
 /opt/local/libexec/llvm-3.1/bin/../lib/clang/3.1 -fmodule-cache-path
 /var/folders/5x/k48hkr0n2mx5qz3_0xw516800000gn/T/clang-module-cache -I
 /opt/local/include -O3 -fdeprecated-macro -fdebug-compilation-dir
 /Users/mmoll/omplapp/build/Release -ferror-limit 19 -fmessage-length 97
 -stack-protector 1 -mstackrealign -fblocks -fobjc-runtime-has-arc -fobjc-
 runtime-has-weak -fobjc-dispatch-method=mixed -fcxx-exceptions
 -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -o
 /var/folders/5x/k48hkr0n2mx5qz3_0xw516800000gn/T/test-HHZUrL.o -x c++
 test.cpp
 clang -cc1 version 3.1 based upon LLVM 3.1svn default target x86_64-apple-
 darwin11.3.0
 ignoring nonexistent directory "/usr/include/c++/4.2.1/i686-apple-
 darwin10/x86_64"
 ignoring nonexistent directory "/usr/include/c++/4.0.0"
 ignoring nonexistent directory "/usr/include/c++/4.0.0/i686-apple-
 darwin8/"
 ignoring nonexistent directory "/usr/include/c++/4.0.0/backward"
 #include "..." search starts here:
 #include <...> search starts here:
  /opt/local/include
  /usr/include/c++/4.2.1
  /usr/include/c++/4.2.1/backward
  /usr/local/include
  /opt/local/libexec/llvm-3.1/bin/../lib/clang/3.1/include
  /usr/include
  /System/Library/Frameworks (framework directory)
  /Library/Frameworks (framework directory)
 End of search list.
  "/usr/llvm-gcc-4.2/libexec/gcc/i686-apple-darwin11/4.2.1/ld" -demangle
 -object_path_lto /var/folders/5x/k48hkr0n2mx5qz3_0xw516800000gn/T/cc-
 bK5Nhp.o -dynamic -arch x86_64 -macosx_version_min 10.7.0 -o test
 -lcrt1.10.6.o /var/folders/5x/k48hkr0n2mx5qz3_0xw516800000gn/T/test-
 HHZUrL.o -lstdc++ -lSystem
 ld: in /var/folders/5x/k48hkr0n2mx5qz3_0xw516800000gn/T/test-HHZUrL.o,
 could not parse object file
 /var/folders/5x/k48hkr0n2mx5qz3_0xw516800000gn/T/test-HHZUrL.o: Invalid
 MODULE_CODE_FUNCTION record for architecture x86_64
 clang: error: linker command failed with exit code 1 (use -v to see
 invocation)
 }}}
 If I explicitly use the LLVM linker I get an executable that can't be run:
 {{{
 > clang++-mp-3.1 -O4 test.cpp -o test.o -c
 > llvm-ld-mp-3.1 -o test test.o -lstdc++ -lSystem
 > ./test
 ./test: line 3: exec: lli: not found
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/33207>
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