[llvm-bugs] [Bug 33400] New: r303385 + NewGVN cause build failure with LibreOffice

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=33400

            Bug ID: 33400
           Summary: r303385 + NewGVN cause build failure with LibreOffice
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: lukebenes at hotmail.com
                CC: llvm-bugs at lists.llvm.org

After commit r303385, LibreOffice cannot be built with the NewGVN. 

Steps to reproduce:
1. $ git clone git://anongit.freedesktop.org/libreoffice/core
2. $ apt-get build-dep libreoffice 
3. create file autogen.input with CC=clang and CXX=clang++
4. ./autogen.sh && make ENVCFLAGS="-mllvm -enable-newgvn" ENVCFLAGSCXX="-mllvm
-enable-newgvn"

after r303385
build fails with CppunitTest_sal_rtl unit test failed
https://zerobin.net/?f4667d70234ecd9b#lGaFbWmTpcRE6N55nl8GPjAtNtIiWseiu1UGtfGA930=

after r303444 

"constant.tests 47" expected FAILURE, got 1 (256): ok
Compiling: /workdir/CustomTarget/idlc/parser_test/in.idl
"constant.tests 48" expected FAILURE, got 0 (0): FAILED!
/idlc/CustomTarget_parser_test.mk:28: recipe for target
'/workdir/CustomTarget/idlc/parser_test.done' failed
make[1]: *** [/workdir/CustomTarget/idlc/parser_test.done] Error 1

As of r305145, clang is still failing the idlc/parser_test with the newgvn. A
normal clang build succeeds.

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