[llvm-bugs] [Bug 37998] New: Clang-cl link error exported class with template as base
https://bugs.llvm.org/show_bug.cgi?id=37998
Bug ID: 37998
Summary: Clang-cl link error exported class with template as
base
Product: clang
Version: 6.0
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: jva...@gmail.com
CC: llvm-bugs@lists.llvm.org
Created attachment 20495
--> https://bugs.llvm.org/attachment.cgi?id=20495&action=edit
Reproduction
Using MSVC 2017 and Clang-cl 6.0.0
Given link error:
u.clang.obj : error LNK2019: unresolved external symbol "private: int * __cdecl
NS::A::get(void)" (??$get@H@?$A@US@N@@@NS@@AEAAPEAHXZ)
referenced in function "int __cdecl func(int,char * *)" (?func@@YAHHPEAPEAD@Z)
In attachment, you can find the same files as below.
run.cmd
---
cl.exe /nologo /c /GR /EHsc /fp:precise /FS /std:c++17 /diagnostics:caret /O2
/I. /MDd /Zc:forScope /bigobj /Zc:wchar_t t.cpp
cl.exe /nologo /c /GR /EHsc /fp:precise /FS /std:c++17 /diagnostics:caret /O2
/I. /MDd /Zc:forScope /bigobj /Zc:wchar_t u.cpp
cl.exe /nologo /c /GR /EHsc /fp:precise /FS /std:c++17 /diagnostics:caret /O2
/I. /MDd /Zc:forScope /bigobj /Zc:wchar_t m.cpp
move t.obj t.msvc.obj
move u.obj u.msvc.obj
move m.obj m.msvc.obj
link m.msvc.obj t.msvc.obj u.msvc.obj
clang-cl.exe -fms-compatibility-version=19.11 /DBOOST_USE_WINDOWS_H -w
-Wno-unused-command-line-argument /nologo /c /GR /EHsc /fp:precise /FS
/std:c++17 /diagnostics:caret /O2 /I. /MDd /Zc:forScope /bigobj /Zc:wchar_t
t.cpp
clang-cl.exe -fms-compatibility-version=19.11 /DBOOST_USE_WINDOWS_H -w
-Wno-unused-command-line-argument /nologo /c /GR /EHsc /fp:precise /FS
/std:c++17 /diagnostics:caret /O2 /I. /MDd /Zc:forScope /bigobj /Zc:wchar_t
u.cpp
clang-cl.exe -fms-compatibility-version=19.11 /DBOOST_USE_WINDOWS_H -w
-Wno-unused-command-line-argument /nologo /c /GR /EHsc /fp:precise /FS
/std:c++17 /diagnostics:caret /O2 /I. /MDd /Zc:forScope /bigobj /Zc:wchar_t
m.cpp
move t.obj t.clang.obj
move u.obj u.clang.obj
move m.obj m.clang.obj
link m.clang.obj t.clang.obj u.clang.obj
t.h
---
#include
#ifdef EXPORT_DLL
#define EXPORT __declspec(dllexport)
#else
#define EXPORT __declspec(dllimport)
#endif
namespace N {
struct S {};
} // namespace N
namespace NS {
struct I {
virtual ~I() = default;
virtual int *f() = 0;
};
template class A : public I {
public:
explicit A() = default;
virtual ~A() = default;
A(const A &) = default;
A(A &&) = default;
A &operator=(const A &) = default;
A &operator=(A &&) = default;
virtual int *f() override { return get(); }
private:
template ::value>
struct Impl {
Q *get();
};
template struct Impl {
Q *get() { return nullptr; }
};
//! Wrapper method
template Q *get();
};
} // namespace NS
namespace N {
class EXPORT B : public NS::A {
public:
explicit B();
virtual ~B();
B(const B &) = default;
B(B &&) = default;
B &operator=(const B &) = default;
B &operator=(B &&) = default;
};
} // namespace N
t.cpp
-
#define EXPORT_DLL
#include "t.h"
namespace NS {
template
template
Q *A::Impl::get() {
static int i = 42;
return &i;
}
template template Q *A::get() {
return Impl().get();
}
} // namespace NS
using namespace N;
using namespace NS;
B::B() = default;
B::~B() = default;
template class EXPORT NS::A;
u.cpp
-
#define EXPORT_DLL
#include "t.h"
using namespace N;
int func(int, char **) {
auto b = B{};
return *b.f();
}
m.cpp
-
#include "t.h"
using namespace N;
int main(int, char **) {
auto b = B{};
return *b.f();
}
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[llvm-bugs] [Bug 37999] New: Unsequenced warnings displayed inconsistently
https://bugs.llvm.org/show_bug.cgi?id=37999
Bug ID: 37999
Summary: Unsequenced warnings displayed inconsistently
Product: clang
Version: 6.0
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: dilyan.palau...@aegee.org
CC: llvm-bugs@lists.llvm.org
With this program:
#include
#include
int main() {
char g[] = "ABC";
int i =0;
g[i] = tolower(g[i++]);
printf("g=%s, i=%i\n", g, i);
}
and clang 6.0.0 (not 6.0.1) I get:
$ clang -O0 plus.c
plus.c:7:21: warning: unsequenced modification and access to 'i'
[-Wunsequenced]
g[i] = tolower(g[i++]);
~ ^
1 warning generated.
but
$ clang -O1 plus.c
-> No warnings
As the first call (-O0) emits warnings, I would expect that the second call
(-O1) emits the same warnings.
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[llvm-bugs] [Bug 38000] New: State at llvm.org where to downlad LLVM 6.0.1
https://bugs.llvm.org/show_bug.cgi?id=38000 Bug ID: 38000 Summary: State at llvm.org where to downlad LLVM 6.0.1 Product: Website Version: unspecified Hardware: All OS: All Status: NEW Severity: enhancement Priority: P Component: General Website Assignee: unassignedb...@nondot.org Reporter: dilyan.palau...@aegee.org CC: llvm-bugs@lists.llvm.org Providing that http://releases.llvm.org/download.html contains version 6.0.1 update www.llvm.org on the left -> Download to state 6.0.1 instead of 6.0.1, and to link to http://releases.llvm.org/download.html#6.0.1 instead of http://releases.llvm.org/download.html#6.0.0. -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 37119] Compiler miscompiling code after r329525 when optimizations are enabled
https://bugs.llvm.org/show_bug.cgi?id=37119 Simon Pilgrim changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED Fixed By Commit(s)|335637 |335637,336048 --- Comment #5 from Simon Pilgrim --- Vector codegen was fixed at rL336048 -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 38001] New: Reading a 8-byte aligned f128 emits a movaps instruction
https://bugs.llvm.org/show_bug.cgi?id=38001 Bug ID: 38001 Summary: Reading a 8-byte aligned f128 emits a movaps instruction Product: tools Version: 6.0 Hardware: PC OS: Linux Status: NEW Severity: normal Priority: P Component: llc Assignee: unassignedb...@nondot.org Reporter: eduardosanchezmu...@gmail.com CC: llvm-bugs@lists.llvm.org Created attachment 20496 --> https://bugs.llvm.org/attachment.cgi?id=20496&action=edit Example LLVM IR Using load on a f128 with align 8 emits a movaps instruction (on x86-64 with mmx), which expects a 16-byte aligned address. An example IR is attached. It can be compiled with llc -march=x86-64 -mattr=+mmx -O1 movaps.ll The output of llc -version is: LLVM (http://llvm.org/): LLVM version 6.0.0 Optimized build. Default target: x86_64-pc-linux-gnu Host CPU: skylake Registered Targets: aarch64- AArch64 (little endian) aarch64_be - AArch64 (big endian) amdgcn - AMD GCN GPUs arm- ARM arm64 - ARM64 (little endian) armeb - ARM (big endian) bpf- BPF (host endian) bpfeb - BPF (big endian) bpfel - BPF (little endian) hexagon- Hexagon lanai - Lanai mips - Mips mips64 - Mips64 [experimental] mips64el - Mips64el [experimental] mipsel - Mipsel msp430 - MSP430 [experimental] nvptx - NVIDIA PTX 32-bit nvptx64- NVIDIA PTX 64-bit ppc32 - PowerPC 32 ppc64 - PowerPC 64 ppc64le- PowerPC 64 LE r600 - AMD GPUs HD2XXX-HD6XXX sparc - Sparc sparcel- Sparc LE sparcv9- Sparc V9 systemz- SystemZ thumb - Thumb thumbeb- Thumb (big endian) x86- 32-bit X86: Pentium-Pro and above x86-64 - 64-bit X86: EM64T and AMD64 xcore - XCore I have installed LLVM from Manjaro repositories. -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 38002] New: Missed opportunity for SETE for 2-cases switch
https://bugs.llvm.org/show_bug.cgi?id=38002
Bug ID: 38002
Summary: Missed opportunity for SETE for 2-cases switch
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: X86
Assignee: unassignedb...@nondot.org
Reporter: david.bolvan...@gmail.com
CC: llvm-bugs@lists.llvm.org
Hello,
Code:
bool sw1(int x) {
switch(x) {
case 3:
case 5:
return true;
default:
return false;
}
}
Clang trunk -03/Os:
sw1(int): # @sw1(int)
mov al, 1
cmp edi, 3
je .LBB0_3
cmp edi, 5
jne .LBB0_2<--- avoid jump, use "sete al"?
.LBB0_3:
ret
.LBB0_2:
xor eax, eax
ret
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[llvm-bugs] [Bug 38003] New: Fold AND+CMP to CMP
https://bugs.llvm.org/show_bug.cgi?id=38003
Bug ID: 38003
Summary: Fold AND+CMP to CMP
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Scalar Optimizations
Assignee: unassignedb...@nondot.org
Reporter: david.bolvan...@gmail.com
CC: llvm-bugs@lists.llvm.org
Hello,
bool sw1(int x) {
switch(x) {
case 2:
case 5:
case 6:
case 31:
return true;
default:
return false;
}
}
Clang -03
sw1(int):
add edi, -2 // why?
cmp edi, 29 // fold add + cmp to cmp edi, 31
ja .LBB0_2
mov eax, 536870937
mov ecx, edi
shr eax, cl
and eax, 1
ret
.LBB0_2:
xor eax, eax
ret
GCC 8.1 emits:
sw1(int):
xor eax, eax
cmp edi, 31
ja .L1
mov eax, 1
mov ecx, edi
sal rax, cl
test eax, 2147483752
setne al
.L1:
ret
ICC 18 (more jumps, worse code?):
sw1(int):
cmp edi, 64
jae ..B1.4
mov rax, 0x08068
bt rax, rdi
jnc ..B1.4
mov eax, 1
ret
..B1.4:
xor eax, eax
ret
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[llvm-bugs] [Bug 38004] New: Crash of clang for debug build
https://bugs.llvm.org/show_bug.cgi?id=38004
Bug ID: 38004
Summary: Crash of clang for debug build
Product: clang
Version: 6.0
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: jva...@gmail.com
CC: llvm-bugs@lists.llvm.org
Using Clang-cl (6.0.0) with MSVC2017
Compile command:
clang-cl.exe -fms-compatibility-version=19.11
-Wno-unused-command-line-argument /nologo /c /GR /EHsc /std:c++17 /Od /Z7
t.cpp -w
t.cpp
-
#include
struct A;
template
struct B
{
};
struct C
{
template
static constexpr auto v = std::conjunction_v...>;
template
static constexpr auto v> = v;
};
C c{};
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[llvm-bugs] [Bug 38005] New: Assertion failed: RD->isAggregate() && "aggregate init on non-aggregate"
https://bugs.llvm.org/show_bug.cgi?id=38005
Bug ID: 38005
Summary: Assertion failed: RD->isAggregate() && "aggregate init
on non-aggregate"
Product: clang
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: jva...@gmail.com
CC: llvm-bugs@lists.llvm.org
Found on LLVM trunk (rev63) with MSVC2017
Command
---
clang-cl.exe -fms-compatibility-version=19.11 /nologo /c /GR /EHsc /std:c++17
t.cpp -w
t.cpp
-
#include
#include
struct C {
using const_iterator = std::vector::const_iterator;
const_iterator cbegin() const;
const_iterator cend() const;
private:
std::vector v;
};
C f();
void g() {
for (auto c : C{f()}) {
}
}
error
-
Assertion failed: RD->isAggregate() && "aggregate init on non-aggregate", file
C:\src\llvm_package_63\llvm\tools\clang\lib\Sema\SemaInit.cpp, line 6351
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[llvm-bugs] [Bug 38006] New: test/DebugInfo/MIR/X86/no-cfi-loc.mir fails assertion for x86_64-pc-windows-gnu
https://bugs.llvm.org/show_bug.cgi?id=38006 Bug ID: 38006 Summary: test/DebugInfo/MIR/X86/no-cfi-loc.mir fails assertion for x86_64-pc-windows-gnu Product: new-bugs Version: trunk Hardware: PC OS: Windows NT Status: NEW Severity: normal Priority: P Component: new bugs Assignee: unassignedb...@nondot.org Reporter: yaron.ke...@gmail.com CC: llvm-bugs@lists.llvm.org, paul.robin...@am.sony.com, paul_robin...@playstation.sony.com test/DebugInfo/MIR/X86/no-cfi-loc.mir fails when targetting for x86_64-pc-windows-gnu: TEST 'LLVM :: DebugInfo/MIR/X86/no-cfi-loc.mir' FAILED Script: -- : 'RUN: at line 3'; C:\llvm\build\RelWithDebInfo\bin\llc.EXE -start-after=prologepilog -march=x86-64 -use-unknown-locations=Enable C:\llvm\llvm\test\DebugInfo\MIR\X86\no-cfi-loc.mir -o - | C:\llvm\build\RelWithDebInfo\bin\FileCheck.EXE C:\llvm\llvm\test\DebugInfo\MIR\X86\no-cfi-loc.mir -- Exit Code: 2 Command Output (stdout): -- $ ":" "RUN: at line 3" $ "C:\llvm\build\RelWithDebInfo\bin\llc.EXE" "-start-after=prologepilog" "-march=x86-64" "-use-unknown-locations=Enable" "C:\llvm\llvm\test\DebugInfo\MIR\X86\no-cfi-loc.mir" "-o" "-" # command stderr: Assertion failed: HasWinCFI.hasValue() && "HasWinCFI not set yet!", file C:\llvm\llvm\include\llvm/CodeGen/MachineFunction.h, line 487 LLVM trunk r336052 was built using Visual C++ targetting x86_64-pc-windows-gnu and with assertions on: cmake -G "Visual Studio 14 Win64" -Thost=x64 -DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo -DLLVM_DEFAULT_TARGET_TRIPLE=x86_64-pc-windows-gnu -DLLVM_ENABLE_ASSERTIONS:BOOL=ON -DLLVM_USE_CRT_DEBUG=MTd -DLLVM_USE_CRT_RELWITHDEBINFO=MTd -DLLVM_USE_CRT_RELEASE=MT ../llvm should the test pass at all or is it unsupported on x86_64-pc-windows-gnu? -- You are receiving this mail because: You are on the CC list for the bug.___ llvm-bugs mailing list llvm-bugs@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
[llvm-bugs] [Bug 38007] New: sigsegv in llvm::PMTopLevelManager::addImmutablePass
https://bugs.llvm.org/show_bug.cgi?id=38007
Bug ID: 38007
Summary: sigsegv in llvm::PMTopLevelManager::addImmutablePass
Product: new-bugs
Version: 6.0
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: gie...@gentoo.org
CC: llvm-bugs@lists.llvm.org
The test is run on Gentoo linux amd64, with clang 6.0.1 (or 6.0.0) compiled
to use gold as its default linker:
-DCLANG_DEFAULT_LINKER=/usr/bin/ld.gold'
Compiling a trivial program:
argus% cat main.c
int main(){ return 0; }
argus%
clang its a debug assertion, or crashes with a SIGSEGV when compiled without
debug:
argus% clang -save-temps -v -flto=thin
-Wl,-plugin=/usr/lib/llvm/6/lib64/LLVMgold.so main.c
clang version 6.0.1 (tags/RELEASE_601/final)
...
See the attached file clang-lto-plugin-sigsegv-bug-report.txt for the
stack trace.
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[llvm-bugs] Issue 9202 in oss-fuzz: llvm/clang-llvm-proto-fuzzer: ASSERT: OS.tell() - Start == FragmentSize && "The stream should advance by fragment size
Status: New Owner: CC: k...@google.com, masc...@google.com, jdevlieg...@apple.com, igm...@gmail.com, llvm-b...@lists.llvm.org, j...@chromium.org, v...@apple.com, mitchphi...@outlook.com, xpl...@gmail.com, akils...@apple.com Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible Engine-libfuzzer Proj-llvm Reported-2018-07-01 Type: Bug New issue 9202 by ClusterFuzz-External: llvm/clang-llvm-proto-fuzzer: ASSERT: OS.tell() - Start == FragmentSize && "The stream should advance by fragment size https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9202 Detailed report: https://oss-fuzz.com/testcase?key=6516072046919680 Project: llvm Fuzzer: libFuzzer_llvm_clang-llvm-proto-fuzzer Fuzz target binary: clang-llvm-proto-fuzzer Job Type: libfuzzer_asan_llvm Platform Id: linux Crash Type: ASSERT Crash Address: Crash State: OS.tell() - Start == FragmentSize && "The stream should advance by fragment size llvm::MCAssembler::writeSectionData ELFWriter::writeObject Sanitizer: address (ASAN) Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201806250758:201806260706 Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=6516072046919680 Issue filed automatically. See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for more information. When you fix this bug, please * mention the fix revision(s). * state whether the bug was a short-lived regression or an old bug in any stable releases. * add any other useful information. This information can help downstream consumers. If you need to contact the OSS-Fuzz team with a question, concern, or any other feedback, please file an issue at https://github.com/google/oss-fuzz/issues. -- You received this message because: 1. You were specifically CC'd on the issue You may adjust your notification preferences at: https://bugs.chromium.org/hosting/settings Reply to this email to add a comment. ___ llvm-bugs mailing list llvm-bugs@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
