Attached is a bitcode test case that crashes loop-vectorize. This seems to be related to the loop vectorizer.
c-isystem /home/tinti/Local/include -O2 -Wno-asm-operand-widths -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -Werror-implicit-function-declaration -Wno-format-security -Wdeclaration-after-statement -Wno-pointer-sign -fno-dwarf2-cfi-asm -fno-dwarf-directory-asm -fdebug-compilation-dir /mnt/w1/tinti/mine/llvmlinux/targets/rpi/src/rpi -ferror-limit 19 -fmessage-length 206 -fwrapv -mstackrealign -fno-builtin -fno-signed-char -fobjc-runtime=gcc -fno-common -fdiagnostics-show-option -fcolor-diagnostics -backend-option -vectorize-loops -o /tmp/lbalance-wzE78E.s -x c fs/reiserfs/lbalance.c mnt/w1/tinti/mine/llvmlinux/toolchain/clang/install/bin/clang-3.3 -cc1 -triple armv6-none-linux-gnueabi -S -disable-free -disable-llvm-verifier -main-file-name lbalance.c -mrelocation-model static -mdisable-fp-elim -relaxed-aliasing -mdisable-tail-calls -fmath-errno -mconstructor-aliases -target-abi aapcs-linux -target-cpu arm1176jzf-s -msoft-float -mfloat-abi soft -target-feature +soft-float -target-feature +soft-float-abi -target-feature +vfp2 -target-feature -neon -target-feature -neon -momit-leaf-frame-pointer -g -coverage-file /tmp/lbalance-wzE78E.s -nostdsysteminc -nobuiltininc -resource-dir /mnt/w1/tinti/mine/llvmlinux/toolchain/clang/install/bin/./lib/clang/3.3 -dependency-file fs/reiserfs/.lbalance.o.d -MT fs/reiserfs/.tmp_lbalance.o -sys-header-deps -isystem /mnt/w1/tinti/mine/llvmlinux/toolchain/clang/install/bin/./lib/clang/3.3/include -include /mnt/w1/tinti/mine/llvmlinux/targets/rpi/src/rpi/include/linux/kconfig.h -D KERNEL -D LINUX_ARM_ARCH=6 -D MODULE -D KBUILD_STR(s)=#s -D KBUILD_BASENAME=KBUILD_STR(lbalance) -D KBUILD_MODNAME=KBUILD_STR(reiserfs) -I /mnt/w1/tinti/mine/llvmlinux/targets/rpi/src/rpi/arch/arm/include -I arch/arm/include/generated -I include -I arch/arm/mach-bcm2708/include -fmodule-cache-path /var/tmp/clang-module-cache -c-isystem. Within a related issue on bug 14034, the following flags worked as a workaround but they do not work on this case -mllvm -use-new-sroa=false. It uses a lot of CPU but no high memory usage. Preprocessor output for the command DescriptionĬlang-3.3 seems to freeze when compiling a specific file.
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