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clang6 segfaults with -mcpu=power9 #36303

Open Quuxplusone opened 6 years ago

Quuxplusone commented 6 years ago
Bugzilla Link PR37330
Status NEW
Importance P enhancement
Reported by Kenneth Salerno (kennethsalerno@yahoo.com)
Reported on 2018-05-03 12:05:42 -0700
Last modified on 2018-10-25 20:12:01 -0700
Version 6.0
Hardware Other FreeBSD
CC llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
Fixed by commit(s)
Attachments adler32-be93c8.c (309898 bytes, text/plain)
Blocks
Blocked by
See also 
Created attachment 20259
source file to reproduce error

The same compilation without "-mcpu=power9" succeeds.

# Crash reproducer for clang version 6.0.0 (tags/RELEASE_600/final)
# Driver args:
    "-B" "/usr/local/bin/powerpc64-unknown-freebsd11.1-" \
    "--target=powerpc64-unknown-freebsd11.1" \
    "--sysroot=/usr/obj/powerpc.powerpc64/usr/src/tmp" \
    "-B" "/usr/obj/powerpc.powerpc64/usr/src/tmp/usr/bin" \
    "-O2" \
    "-fomit-frame-pointer" \
    "-pipe" \
    "-fno-stack-protector" \
    "-D" "_FORTIFY_SOURCE=0" \
    "-fno-asynchronous-unwind-tables" \
    "-mcpu=power9" \
    "-mtune=power9" \
    "-m32" \
    "-I" "." \
    "-I" "/usr/src/sys/boot/libstand32/../../../lib/libstand" \
    "-D" "BZ_NO_STDIO" \
    "-D" "BZ_NO_COMPRESS" \
    "-D" "HAVE_MEMCPY" \
    "-I" "/usr/src/sys/boot/libstand32/../../../lib/libstand/../../contrib/zlib" \
    "-ffreestanding" \
    "-Wformat" \
    "-msoft-float" \
    "-D" "_STANDALONE" \
    "-MD" \
    "-MF" ".depend.adler32.o" \
    "-MT" "adler32.o" \
    "-std=gnu99" \
    "-Wno-pointer-sign" \
    "-Wno-empty-body" \
    "-Wno-string-plus-int" \
    "-Wno-unused-const-variable" \
    "-Wno-tautological-compare" \
    "-Wno-unused-value" \
    "-Wno-parentheses-equality" \
    "-Wno-unused-function" \
    "-Wno-enum-conversion" \
    "-Wno-unused-local-typedef" \
    "-Wno-address-of-packed-member" \
    "-Wno-switch" \
    "-Wno-switch-enum" \
    "-Wno-knr-promoted-parameter" \
    "-Wno-parentheses" \
    "-Qunused-arguments" \
    "-c" \
    "/usr/src/sys/boot/libstand32/../../../lib/libstand/../../contrib/zlib/adler32.c"
\
    "-o" "adler32.o"

# Original command:
"/usr/local/llvm60/bin/clang-6.0" \
    "-cc1" \
    "-triple" "powerpc-unknown-freebsd11.1" \
    "-emit-obj" \
    "-disable-free" \
    "-main-file-name" "adler32.c" \
    "-mrelocation-model" "static" \
    "-mthread-model" "posix" \
    "-masm-verbose" \
    "-mconstructor-aliases" \
    "-ffreestanding" \
    "-target-cpu" "pwr9" \
    "-target-feature" \
    "-hard-float" \
    "-msoft-float" \
    "-mfloat-abi" "soft" \
    "-dwarf-column-info" \
    "-debugger-tuning=gdb" \
    "-coverage-notes-file"
"/usr/obj/powerpc.powerpc64/usr/src/sys/boot/libstand32/adler32.gcno" \
    "-resource-dir" "/usr/local/llvm60/lib/clang/6.0.0" \
    "-dependency-file" ".depend.adler32.o" \
    "-sys-header-deps" \
    "-MT" "adler32.o" \
    "-D" "_FORTIFY_SOURCE=0" \
    "-I" "." \
    "-I" "/usr/src/sys/boot/libstand32/../../../lib/libstand" \
    "-D" "BZ_NO_STDIO" \
    "-D" "BZ_NO_COMPRESS" \
    "-D" "HAVE_MEMCPY" \
    "-I" "/usr/src/sys/boot/libstand32/../../../lib/libstand/../../contrib/zlib" \
    "-D" "_STANDALONE" \
    "-isysroot" "/usr/obj/powerpc.powerpc64/usr/src/tmp" \
    "-O2" \
    "-Wformat" \
    "-Wno-pointer-sign" \
    "-Wno-empty-body" \
    "-Wno-string-plus-int" \
    "-Wno-unused-const-variable" \
    "-Wno-tautological-compare" \
    "-Wno-unused-value" \
    "-Wno-parentheses-equality" \
    "-Wno-unused-function" \
    "-Wno-enum-conversion" \
    "-Wno-unused-local-typedef" \
    "-Wno-address-of-packed-member" \
    "-Wno-switch" \
    "-Wno-switch-enum" \
    "-Wno-knr-promoted-parameter" \
    "-Wno-parentheses" \
    "-std=gnu99" \
    "-fdebug-compilation-dir" \
    "/usr/obj/powerpc.powerpc64/usr/src/sys/boot/libstand32" \
    "-ferror-limit" "19" \
    "-fmessage-length" "0" \
    "-fno-signed-char" \
    "-fobjc-runtime=gnustep" \
    "-fdiagnostics-show-option" \
    "-vectorize-loops" \
    "-vectorize-slp" \
    "-o" "adler32.o" \
    "-x" "c" \
    "/usr/src/sys/boot/libstand32/../../../lib/libstand/../../contrib/zlib/adler32.c"
\

"/usr/local/llvm60/bin/clang-6.0" \
    "-cc1" \
    "-triple" "powerpc-unknown-freebsd11.1" \
    "-emit-obj" \
    "-disable-free" \
    "-main-file-name" "adler32.c" \
    "-mrelocation-model" "static" \
    "-mthread-model" "posix" \
    "-masm-verbose" \
    "-mconstructor-aliases" \
    "-ffreestanding" \
    "-target-cpu" "pwr9" \
    "-target-feature" \
    "-hard-float" \
    "-msoft-float" \
    "-mfloat-abi" "soft" \
    "-dwarf-column-info" \
    "-debugger-tuning=gdb" \
    "-coverage-notes-file"
"/usr/obj/powerpc.powerpc64/usr/src/sys/boot/libstand32/adler32.gcno" \
    "-sys-header-deps" \
    "-D" "_FORTIFY_SOURCE=0" \
    "-D" "BZ_NO_STDIO" \
    "-D" "BZ_NO_COMPRESS" \
    "-D" "HAVE_MEMCPY" \
    "-D" "_STANDALONE" \
    "-O2" \
    "-Wformat" \
    "-Wno-pointer-sign" \
    "-Wno-empty-body" \
    "-Wno-string-plus-int" \
    "-Wno-unused-const-variable" \
    "-Wno-tautological-compare" \
    "-Wno-unused-value" \
    "-Wno-parentheses-equality" \
    "-Wno-unused-function" \
    "-Wno-enum-conversion" \
    "-Wno-unused-local-typedef" \
    "-Wno-address-of-packed-member" \
    "-Wno-switch" \
    "-Wno-switch-enum" \
    "-Wno-knr-promoted-parameter" \
    "-Wno-parentheses" \
    "-std=gnu99" \
    "-ferror-limit" "19" \
    "-fmessage-length" "0" \
    "-fno-signed-char" \
    "-fobjc-runtime=gnustep" \
    "-fdiagnostics-show-option" \
    "-vectorize-loops" \
    "-vectorize-slp" \
    "-x" "c" \
    "adler32-be93c8.c" \
Quuxplusone commented 6 years ago

Attached adler32-be93c8.c (309898 bytes, text/plain): source file to reproduce error