https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84479
Bug ID: 84479
Summary: [8 Regression] cryptopp miscompilation on powerpc64le
starting with r256656
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: jakub at gcc dot gnu.org
Target Milestone: ---
cryptopp is miscompiled starting with r256656, in particular rijndael-simd.cpp
at -O2 -fstack-protector-strong -fPIC.
Reproduceable on gcc112.fsffrance.org:
cp -a ~jakub/cryptopp ~/cryptopp
cd ~/cryptopp
.../cc1plus -quiet -nostdinc -O2 -fstack-protector-strong -fPIC
rijndael-simd.ii
/opt/cfarm/gcc8-r257824/bin/g++ -DNDEBUG -O2 -fstack-protector-strong -fPIC
-pthread -pipe -c rijndael-simd.s -o rijndael-simd.o;
CXX=/opt/cfarm/gcc8-r257824/bin/g++ CXXFLAGS="-DNDEBUG -g2 -O2
-fstack-protector-strong" make -j20;
LD_LIBRARY_PATH=/opt/cfarm/gcc8-r257824/lib64/ ./cryptest.exe tv aes
If the cc1plus above is r256653 or earlier, all tests pass:
Testing SymmetricCipher algorithm AES/ECB.
....
Testing SymmetricCipher algorithm AES/CBC.
........
Testing SymmetricCipher algorithm AES/CFB.
.......
Testing SymmetricCipher algorithm AES/OFB.
....
Testing SymmetricCipher algorithm AES/CTR.
.............
Tests complete. Total tests = 36. Failed tests = 0.
, if it is r256656 all tests fail:
...
Tests complete. Total tests = 36. Failed tests = 36.
SOME TESTS FAILED!
