https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67271
Bug ID: 67271 Summary: ICE with -O1,2,3 on darwin14.5 x86_64 Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: tarasevich at cs dot uni-saarland.de Target Milestone: --- Created attachment 36212 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36212&action=edit preprocessed test case Although test case has out of bounds read, it still yield ICE. GCC was compiled from SVN trunk revision 226781 gcc -v -save-temps -O1 test_case_38.c Using built-in specs. COLLECT_GCC=/Users/sevich/work/build_normal/bin/gcc COLLECT_LTO_WRAPPER=/Users/sevich/work/build_normal/libexec/gcc/x86_64-apple-darwin14.5.0/6.0.0/lto-wrapper Target: x86_64-apple-darwin14.5.0 Configured with: /Users/sevich/work/source/gcc_trunk_git/configure --disable-bootstrap --enable-languages=c,c++ --prefix=/Users/sevich/work/build_normal/ Thread model: posix gcc version 6.0.0 20150811 (experimental) (GCC) COLLECT_GCC_OPTIONS='-mmacosx-version-min=10.10.5' '-v' '-save-temps' '-O1' '-mtune=core2' /Users/sevich/work/build_normal/libexec/gcc/x86_64-apple-darwin14.5.0/6.0.0/cc1 -E -quiet -v -D__DYNAMIC__ test_case_38.c -fPIC -mmacosx-version-min=10.10.5 -mtune=core2 -O1 -fpch-preprocess -o test_case_38.i ignoring nonexistent directory "/Users/sevich/work/build_normal/lib/gcc/x86_64-apple-darwin14.5.0/6.0.0/../../../../x86_64-apple-darwin14.5.0/include" #include "..." search starts here: #include <...> search starts here: /Users/sevich/work/build_normal/lib/gcc/x86_64-apple-darwin14.5.0/6.0.0/include /usr/local/include /Users/sevich/work/build_normal/include /Users/sevich/work/build_normal/lib/gcc/x86_64-apple-darwin14.5.0/6.0.0/include-fixed /usr/include /System/Library/Frameworks /Library/Frameworks End of search list. COLLECT_GCC_OPTIONS='-mmacosx-version-min=10.10.5' '-v' '-save-temps' '-O1' '-mtune=core2' /Users/sevich/work/build_normal/libexec/gcc/x86_64-apple-darwin14.5.0/6.0.0/cc1 -fpreprocessed test_case_38.i -fPIC -quiet -dumpbase test_case_38.c -mmacosx-version-min=10.10.5 -mtune=core2 -auxbase test_case_38 -O1 -version -o test_case_38.s GNU C11 (GCC) version 6.0.0 20150811 (experimental) (x86_64-apple-darwin14.5.0) compiled by GNU C version 4.2.1 Compatible Apple LLVM 6.1.0 (clang-602.0.53), GMP version 6.0.0, MPFR version 3.1.2, MPC version 1.0.3 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 GNU C11 (GCC) version 6.0.0 20150811 (experimental) (x86_64-apple-darwin14.5.0) compiled by GNU C version 4.2.1 Compatible Apple LLVM 6.1.0 (clang-602.0.53), GMP version 6.0.0, MPFR version 3.1.2, MPC version 1.0.3 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: 700dea0ce5ef3b798edb9c9160a43b26 test_case_38.c: In function ‘main’: test_case_38.c:5:15: warning: initialization from incompatible pointer type [-Wincompatible-pointer-types] long *a = "empty"; ^ test_case_38.c:7:12: warning: implicit declaration of function ‘labs’ [-Wimplicit-function-declaration] a[i] = labs(a[i]); ^ test_case_38.c:7:12: warning: incompatible implicit declaration of built-in function ‘labs’ test_case_38.c:7:12: note: include ‘<stdlib.h>’ or provide a declaration of ‘labs’ test_case_38.c:9:1: internal compiler error: Segmentation fault: 11 } ^ libbacktrace could not find executable to open Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions.