[llvm-bugs] [Bug 30358] New: Regression: `Assertion `Opc && "Impossible reg-to-reg copy"' failed` when building chrome for android with trunk clang

via llvm-bugs llvm-bugs at lists.llvm.org
Mon Sep 12 14:33:29 PDT 2016 

https://llvm.org/bugs/show_bug.cgi?id=30358

            Bug ID: 30358
           Summary: Regression: `Assertion `Opc && "Impossible reg-to-reg
                    copy"' failed` when building chrome for android with
                    trunk clang
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Support Libraries
          Assignee: unassignedbugs at nondot.org
          Reporter: nicolasweber at gmx.de
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

[1/1] CC obj/third_party/ffmpeg/ffmpeg_internal/eval.o
FAILED: obj/third_party/ffmpeg/ffmpeg_internal/eval.o 
../../../../llvm-build/bin/clang -MMD -MF
obj/third_party/ffmpeg/ffmpeg_internal/eval.o.d -DHAVE_AV_CONFIG_H
-D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DPIC
-DFF_API_CONVERGENCE_DURATION=0 -D_ISOC99_SOURCE -D_LARGEFILE_SOURCE
-DV8_DEPRECATION_WARNINGS -DENABLE_NOTIFICATIONS -DENABLE_BROWSER_CDMS
-DENABLE_PRINTING=1 -DENABLE_BASIC_PRINTING=1 -DENABLE_SPELLCHECK=1
-DUSE_BROWSER_SPELLCHECKER=1 -DUSE_OPENSSL_CERTS=1 -DNO_TCMALLOC
-DUSE_EXTERNAL_POPUP_MENU=1 -DENABLE_WEBRTC=1 -DDISABLE_NACL
-DENABLE_SUPERVISED_USERS=1 -DVIDEO_HOLE=1 -DSAFE_BROWSING_DB_REMOTE
-DCHROMIUM_BUILD -DENABLE_MEDIA_ROUTER=1 -DENABLE_WEBVR
-DFIELDTRIAL_TESTING_ENABLED -DCR_CLANG_REVISION=280836-1
-D_FILE_OFFSET_BITS=64 -DANDROID -DHAVE_SYS_UIO_H -DANDROID_NDK_VERSION=r12b
-DCOMPONENT_BUILD -D__GNU_SOURCE=1 -D__compiler_offsetof=__builtin_offsetof
-Dnan=__builtin_nan -D_DEBUG -DDYNAMIC_ANNOTATIONS_ENABLED=1
-DWTF_USE_DYNAMIC_ANNOTATIONS=1
-I../../third_party/ffmpeg/chromium/config/Chromium/android/arm-neon
-I../../third_party/ffmpeg -I../.. -Igen -fPIC -fomit-frame-pointer
-Wno-deprecated-declarations -std=c99 -pthread -fno-math-errno
-fno-signed-zeros -fno-tree-vectorize -fomit-frame-pointer -fno-strict-aliasing
--param=ssp-buffer-size=4 -fstack-protector -funwind-tables -fPIC -pipe
-fcolor-diagnostics -ffunction-sections -fno-short-enums
--target=arm-linux-androideabi -march=armv7-a -mfloat-abi=softfp -mthumb
-mtune=generic-armv7-a -mfpu=neon -gdwarf-3 -g2
--sysroot=../../third_party/android_tools/ndk/platforms/android-16/arch-arm
-Wheader-hygiene -Wstring-conversion -Werror -Wall -Wno-unused-variable
-Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing
-Wno-covered-switch-default -Wno-deprecated-register
-Wno-unneeded-internal-declaration -Wno-inconsistent-missing-override
-Wno-shift-negative-value -Wno-undefined-var-template
-Wno-nonportable-include-path -Wno-address-of-packed-member
-Wno-incompatible-pointer-types -Wno-absolute-value
-Wno-deprecated-declarations -Wno-incompatible-pointer-types
-Wno-logical-op-parentheses -Wno-parentheses -Wno-pointer-sign -Wno-switch
-Wno-unused-label -Wno-unused-variable -Wno-string-conversion
-Wno-sometimes-uninitialized -Wno-unused-function -Wno-constant-conversion -O2
-fno-ident -fdata-sections -ffunction-sections -fvisibility=default  -c
../../third_party/ffmpeg/libavutil/eval.c -o
obj/third_party/ffmpeg/ffmpeg_internal/eval.o
clang-3.9:
/usr/local/google/home/thakis/src/llvm-rw/lib/Target/ARM/ARMBaseInstrInfo.cpp:818:
virtual void llvm::ARMBaseInstrInfo::copyPhysReg(llvm::MachineBasicBlock&,
llvm::MachineBasicBlock::iterator, const llvm::DebugLoc&, unsigned int,
unsigned int, bool) const: Assertion `Opc && "Impossible reg-to-reg copy"'
failed.
#0 0x0000000001ca8175 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.9+0x1ca8175)
#1 0x0000000001ca611e llvm::sys::RunSignalHandlers()
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.9+0x1ca611e)
#2 0x0000000001ca6282 SignalHandler(int)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.9+0x1ca6282)
#3 0x00007f637a0c4330 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x10330)
#4 0x00007f6378ebfc37 gsignal
/build/eglibc-oGUzwX/eglibc-2.19/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:56:0
#5 0x00007f6378ec3028 abort
/build/eglibc-oGUzwX/eglibc-2.19/stdlib/abort.c:91:0
#6 0x00007f6378eb8bf6 __assert_fail_base
/build/eglibc-oGUzwX/eglibc-2.19/assert/assert.c:92:0
#7 0x00007f6378eb8ca2 (/lib/x86_64-linux-gnu/libc.so.6+0x2fca2)
#8 0x0000000000cfb07f
llvm::ARMBaseInstrInfo::copyPhysReg(llvm::MachineBasicBlock&,
llvm::MachineInstrBundleIterator<llvm::MachineInstr, false>, llvm::DebugLoc
const&, unsigned int, unsigned int, bool) const
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.9+0xcfb07f)
#9 0x0000000000d2eebf
llvm::Thumb2InstrInfo::copyPhysReg(llvm::MachineBasicBlock&,
llvm::MachineInstrBundleIterator<llvm::MachineInstr, false>, llvm::DebugLoc
const&, unsigned int, unsigned int, bool) const
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.9+0xd2eebf)
#10 0x00000000017e4868 (anonymous
namespace)::ExpandPostRA::runOnMachineFunction(llvm::MachineFunction&)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.9+0x17e4868)
#11 0x0000000001680593
llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.9+0x1680593)
#12 0x0000000001922c73 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.9+0x1922c73)
#13 0x0000000001922d1c llvm::FPPassManager::runOnModule(llvm::Module&)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.9+0x1922d1c)
#14 0x000000000192333f llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.9+0x192333f)
#15 0x0000000001e08148 clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions
const&, llvm::DataLayout const&, llvm::Module*, clang::BackendAction,
std::unique_ptr<llvm::raw_pwrite_stream,
std::default_delete<llvm::raw_pwrite_stream> >)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.9+0x1e08148)
#16 0x00000000024075d8
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.9+0x24075d8)
#17 0x00000000027ccd82 clang::ParseAST(clang::Sema&, bool, bool)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.9+0x27ccd82)


Repro coming in a second.

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