Clang crashed when building with -fstack-protector-all -fcatch-undefined-behavior

[llvmbot]

Bugzilla Link	20754
Version	3.4
OS	Linux
Attachments	Preprocessed source and run script, Preprocessed source and run script form clang3.5
Reporter	LLVM Bugzilla Contributor

Extended Description

libtool: compile: clang -DHAVE_CONFIG_H -I. -I./include -I./celt -I./silk -I./silk/float -I./silk/fixed -O1 -g -fstack-protector-all -fcatch-undefined-behavior -fvisibility=hidden -W -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -MT silk/fixed/solve_LS_FIX.lo -MD -MP -MF silk/fixed/.deps/solve_LS_FIX.Tpo -c silk/fixed/solve_LS_FIX.c -fPIC -DPIC -o silk/fixed/.libs/solve_LS_FIX.o clang: warning: argument '-fcatch-undefined-behavior' is deprecated, use '-fsanitize=undefined-trap -fsanitize-undefined-trap-on-error' instead libtool: compile: clang -DHAVE_CONFIG_H -I. -I./include -I./celt -I./silk -I./silk/float -I./silk/fixed -O1 -g -fstack-protector-all -fcatch-undefined-behavior -fvisibility=hidden -W -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -MT silk/fixed/warped_autocorrelation_FIX_neon.lo -MD -MP -MF silk/fixed/.deps/warped_autocorrelation_FIX_neon.Tpo -c silk/fixed/warped_autocorrelation_FIX_neon.c -fPIC -DPIC -o silk/fixed/.libs/warped_autocorrelation_FIX_neon.o clang: warning: argument '-fcatch-undefined-behavior' is deprecated, use '-fsanitize=undefined-trap -fsanitize-undefined-trap-on-error' instead Stack dump:

0. Program arguments: /usr/bin/clang -cc1 -triple armv7-unknown-linux-gnueabihf -S -disable-free -disable-llvm-verifier -main-file-name warped_autocorrelation_FIX_neon.c -mrelocation-model pic -pic-level 2 -mdisable-fp-elim -fmath-errno -mconstructor-aliases -fuse-init-array -target-cpu cortex-a8 -target-abi aapcs-linux -mfloat-abi hard -target-linker-version 2.24 -g -coverage-file /tmp/warped_autocorrelation_FIX_neon-f6a71e.s -resource-dir /usr/bin/../lib/clang/3.4.2 -dependency-file silk/fixed/.deps/warped_autocorrelation_FIX_neon.Tpo -sys-header-deps -MP -MT silk/fixed/warped_autocorrelation_FIX_neon.lo -D HAVE_CONFIG_H -D PIC -I . -I ./include -I ./celt -I ./silk -I ./silk/float -I ./silk/fixed -internal-isystem /usr/local/include -internal-isystem /usr/bin/../lib/clang/3.4.2/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O1 -W -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -fno-dwarf-directory-asm -fdebug-compilation-dir /home/lorca/src/opus -ferror-limit 19 -fmessage-length 150 -fvisibility hidden -fsanitize=alignment,array-bounds,bool,enum,float-cast-overflow,float-divide-by-zero,integer-divide-by-zero,null,object-size,return,shift,signed-integer-overflow,unreachable,vla-bound -fsanitize-undefined-trap-on-error -stack-protector 2 -mstackrealign -fno-signed-char -fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics -vectorize-slp -o /tmp/warped_autocorrelation_FIX_neon-f6a71e.s -x c silk/fixed/warped_autocorrelation_FIX_neon.c
1. parser at end of file
2. silk/fixed/warped_autocorrelation_FIX_neon.c:52:6 : LLVM IR generation of declaration 'silk_warped_autocorrelation_FIX'
3. silk/fixed/warped_autocorrelation_FIX_neon.c:52:6 : Generating code for declaration 'silk_warped_autocorrelation_FIX'
4. silk/fixed/warped_autocorrelation_FIX_neon.c:70:35: LLVM IR generation of compound statement ('{}')
5. silk/fixed/warped_autocorrelation_FIX_neon.c:84:9 : LLVM IR generation of compound statement ('{}')
6. silk/fixed/warped_autocorrelation_FIX_neon.c:84:9 : LLVM IR generation of compound statement ('{}')
7. silk/fixed/warped_autocorrelation_FIX_neon.c:84:9 : LLVM IR generation of compound statement ('{}') clang: error: unable to execute command: Segmentation fault clang: error: clang frontend command failed due to signal (use -v to see invocation) clang version 3.4.2 (tags/RELEASE_34/dot2-final) Target: armv7l-unknown-linux-gnueabihf libtool: compile: clang -DHAVE_CONFIG_H -I. -I./include -I./celt -I./silk -I./silk/float -I./silk/fixed -O1 -g -fstack-protector-all -fcatch-undefined-behavior -fvisibility=hidden -W -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -MT silk/fixed/solve_LS_FIX.lo -MD -MP -MF silk/fixed/.deps/solve_LS_FIX.Tpo -c silk/fixed/solve_LS_FIX.c -o silk/fixed/solve_LS_FIX.o >/dev/null 2>&1 Thread model: posix clang: note: diagnostic msg: PLEASE submit a bug report to http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and associated run script. clang: note: diagnostic msg:

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[Endilll]

Appears to be fixed in Clang 3.7: https://godbolt.org/z/cTzfza3c9 Reduced by C-Reduce:

typedef __attribute__((neon_vector_type(2))) long long int64x2_t;
int64x2_t vmull_s32_corr_QC_neon_4, vmull_s32___s1;
void vmull_s32() {
  __builtin_neon_vsraq_n_v(vmull_s32_corr_QC_neon_4, vmull_s32___s1, 1 - 0, 35);
}

[llvmbot]

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