[PI][CUDA] Implementation of piEventSetCallback with tests #16
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Adds builtins to libclc to support the CUDA backend for SYCL. Contributors Alexander Johnston <alexander@codeplay.com> David Wood <david.wood@codeplay.com> Victor Lomuller <victor@codeplay.com> Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Adds defines CMake and lit variables used for SYCL CUDA backend development and test Contributors Alexander Johnston <alexander@codeplay.com> Bjoern Knafla <bjoern@codeplay.com> Ruyman Reyes <ruyman@codeplay.com> Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Adds CUDA support for sycl compilation in the clang driver Contributors Alexander Johnston <alexander@codeplay.com> David Wood <david.wood@codeplay.com> Victor Lomuller <victor@codeplay.com> Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Provides the LocalAccessorToSharedMemory compiler pass required for supporting SYCL local accessors in CUDA. Contributors Alexander Johnston <alexander@codeplay.com> David Wood <david.wood@codeplay.com> Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Changes the following builtins to functions __spirv_BuiltInGlobalSize __spirv_BuiltInWorkgroupSize __spirv_BuiltInNumWorkgroups __spirv_BuiltInLocalInvocationId __spirv_BuiltInWorkgroupId __spirv_BuiltInGlobalOffset Contributors David Wood <david.wood@codeplay.com> Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Contributors Alan Forbes <alan.forbes@codeplay.com> Alexander Johnston <alexander@codeplay.com> Bjoern Knafla <bjoern@codeplay.com> Daniel Soutar <daniel.soutar@codeplay.com> David Wood <david.wood@codeplay.com> Kumudha Narasimhan <kumudha.narasimhan@codeplay.com> Mehdi Goli <mehdi.goli@codeplay.com> Przemek Malon <przemek.malon@codeplay.com> Ruyman Reyes <ruyman@codeplay.com> Stuart Adams <stuart.adams@codeplay.com> Svetlozar Georgiev <svetlozar.georgiev@codeplay.com> Steffen Larsen <steffen.larsen@codeplay.com> Victor Lomuller <victor@codeplay.com> Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Have libclc install clc-* and libspirv-* to lib and share Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Synchronise the CUDA backend with the general SYCL changes from #974. Signed-off-by: Andrea Bocci <andrea.bocci@cern.ch>
Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Acked-by: Victor Lomuller <victor@codeplay.com> Signed-off-by: Ruyman <ruyman@codeplay.com>
Signed-off-by: Steffen Larsen <steffen.larsen@codeplay.com>
Signed-off-by: Steffen Larsen <steffen.larsen@codeplay.com>
Have the default_selector consider the env var SYCL_BE when rating device scores to make choosing a backend easier. Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Rather than choose the last found plugin as GlobalPlugin, select it depending on the SYCL_BE env var. Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Better checks for CUDA and OpenCL devices to match with SYCL_BE in the default device selection, based on the platform version info. Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Synchronise the CUDA backend with the general SYCL changes from #1121. Signed-off-by: Andrea Bocci <andrea.bocci@cern.ch>
Signed-off-by: Alexander Johnston <alexander@codeplay.com>
To ensure that the check-sycl targets test OpenCL devices, pass SYCL_BE=PI_OPENCL. This mirrors the check-sycl-cuda target which passes SYCL_BE=PI_CUDA. Without this it is nondeterministic which device is tested by check-sycl. Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Removes PI_CUDA specific code paths and tests from clang, opting to always enable them. Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Fix platform string comparison for CUDA platform detection. Fix device info platform query so that it uses the device's plugin, rather than the GlobalPlugin. Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Signed-off-by: Alexander Johnston <alexander@codeplay.com>
Signed-off-by: Stuart Adams <stuart.adams@codeplay.com> Signed-off-by: Steffen Larsen <steffen.larsen@codeplay.com>
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Mar 14, 2020
Summary:
When moving add and sub to memory operand instructions,
aarch64-ldst-opt would prematurally pop the stack pointer,
before memory instructions that do access the stack using
indirect loads.
e.g.
```
int foo(int offset){
int local[4] = {0};
return local[offset];
}
```
would generate:
```
sub sp, sp, #16 ; Push the stack
mov x8, sp ; Save stack in register
stp xzr, xzr, [sp], #16 ; Zero initialize stack, and post-increment, making it invalid
------ If an exception goes here, the stack value might be corrupted
ldr w0, [x8, w0, sxtw #2] ; Access correct position, but it is not guarded by SP
```
Reviewers: fhahn, foad, thegameg, eli.friedman, efriedma
Reviewed By: efriedma
Subscribers: efriedma, kristof.beyls, hiraditya, danielkiss, llvm-commits, simon_tatham
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D75755
codeplay-sycl
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Apr 16, 2020
Bitcode file alignment is only 32-bit so 64-bit offsets need
special handling.
/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:6327:28: runtime error: load of misaligned address 0x7fca2bcfe54c for type 'const uint64_t' (aka 'const unsigned long'), which requires 8 byte alignment
0x7fca2bcfe54c: note: pointer points here
00 00 00 00 5a a6 01 00 00 00 00 00 19 a7 01 00 00 00 00 00 48 a7 01 00 00 00 00 00 7d a7 01 00
^
#0 0x3be2fe4 in clang::ASTReader::TypeCursorForIndex(unsigned int) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:6327:28
#1 0x3be30a0 in clang::ASTReader::readTypeRecord(unsigned int) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:6348:24
#2 0x3bd3d4a in clang::ASTReader::GetType(unsigned int) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:6985:26
#3 0x3c5d9ae in clang::ASTDeclReader::Visit(clang::Decl*) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReaderDecl.cpp:533:31
#4 0x3c91cac in clang::ASTReader::ReadDeclRecord(unsigned int) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReaderDecl.cpp:4045:10
#5 0x3bd4fb1 in clang::ASTReader::GetDecl(unsigned int) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:7352:5
#6 0x3bce2f9 in clang::ASTReader::ReadASTBlock(clang::serialization::ModuleFile&, unsigned int) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:3625:22
#7 0x3bd6d75 in clang::ASTReader::ReadAST(llvm::StringRef, clang::serialization::ModuleKind, clang::SourceLocation, unsigned int, llvm::SmallVectorImpl<clang::ASTReader::ImportedSubmodule>*) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Serialization/ASTReader.cpp:4230:32
#8 0x3a6b415 in clang::CompilerInstance::createPCHExternalASTSource(llvm::StringRef, llvm::StringRef, bool, bool, clang::Preprocessor&, clang::InMemoryModuleCache&, clang::ASTContext&, clang::PCHContainerReader const&, llvm::ArrayRef<std::shared_ptr<clang::ModuleFileExtension> >, llvm::ArrayRef<std::shared_ptr<clang::DependencyCollector> >, void*, bool, bool, bool) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:539:19
#9 0x3a6b00e in clang::CompilerInstance::createPCHExternalASTSource(llvm::StringRef, bool, bool, void*, bool) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:501:18
#10 0x3abac80 in clang::FrontendAction::BeginSourceFile(clang::CompilerInstance&, clang::FrontendInputFile const&) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/FrontendAction.cpp:865:12
#11 0x3a6e61c in clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:972:13
#12 0x3ba74bf in clang::ExecuteCompilerInvocation(clang::CompilerInstance*) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:282:25
#13 0xa3f753 in cc1_main(llvm::ArrayRef<char const*>, char const*, void*) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/cc1_main.cpp:240:15
#14 0xa3a68a in ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/driver.cpp:330:12
#15 0xa37f31 in main /b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/driver.cpp:407:12
#16 0x7fca2a7032e0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202e0)
#17 0xa21029 in _start (/b/sanitizer-x86_64-linux-fast/build/llvm_build_ubsan/bin/clang-11+0xa21029)
This reverts commit 30d5946.
codeplay-sycl
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Apr 22, 2020
This adds some extra processing into the Pre-RA ARM load/store optimizer to detect and merge MVE loads/stores and adds of the same base. This we don't always turn into a post-inc during ISel, and due to the nature of it being a graph we don't always know an order to use for the nodes, not knowing which nodes to make post-inc and which to use the new post-inc of. After ISel, we have an order that we can use to post-inc the following instructions. So this looks for a loads/store with a starting offset of 0, and an add/sub from the same base, plus a number of other loads/stores. We then do some checks and convert the zero offset load/store into a postinc variant. Any loads/stores after it have the offset subtracted from their immediates. For example: LDR #4 LDR #4 LDR #0 LDR_POSTINC #16 LDR #8 LDR #-8 LDR #12 LDR #-4 ADD #16 It only handles MVE loads/stores at the moment. Normal loads/store will be added in a followup patch, they just have some extra details to ensure that we keep generating LDRD/LDM successfully. Differential Revision: https://reviews.llvm.org/D77813
codeplay-sycl
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May 15, 2020
Imagine we have a broken .eh_frame.
Below is a possible sample output of llvm-readelf:
```
...
entry 2 {
initial_location: 0x10f5
address: 0x2080
}
}
}
.eh_frame section at offset 0x2028 address 0x2028:
LLVM ERROR: Parsing entry instructions at 0 failed
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace.
Stack dump:
0. Program arguments: /home/umb/LLVM/LLVM/llvm-project/build/bin/llvm-readelf -a 1
#0 0x000055f4a2ff5a1a llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/home/umb/LLVM/LLVM/llvm-project/build/bin/llvm-readelf+0x2b9a1a)
...
#15 0x00007fdae5dc209b __libc_start_main /build/glibc-B9XfQf/glibc-2.28/csu/../csu/libc-start.c:342:3
#16 0x000055f4a2db746a _start (/home/umb/LLVM/LLVM/llvm-project/build/bin/llvm-readelf+0x7b46a)
Aborted
```
I.e. it calls abort(), suggests to submit a bug report and exits with the code 134.
This patch changes the logic to propagate errors to callers.
This fixes the behavior for llvm-dwarfdump, llvm-readobj and other possible tools.
Differential revision: https://reviews.llvm.org/D79165
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Aug 22, 2020
When `Target::GetEntryPointAddress()` calls `exe_module->GetObjectFile()->GetEntryPointAddress()`, and the returned `entry_addr` is valid, it can immediately be returned. However, just before that, an `llvm::Error` value has been setup, but in this case it is not consumed before returning, like is done further below in the function. In https://bugs.freebsd.org/248745 we got a bug report for this, where a very simple test case aborts and dumps core: ``` * thread #1, name = 'testcase', stop reason = breakpoint 1.1 frame #0: 0x00000000002018d4 testcase`main(argc=1, argv=0x00007fffffffea18) at testcase.c:3:5 1 int main(int argc, char *argv[]) 2 { -> 3 return 0; 4 } (lldb) p argc Program aborted due to an unhandled Error: Error value was Success. (Note: Success values must still be checked prior to being destroyed). Thread 1 received signal SIGABRT, Aborted. thr_kill () at thr_kill.S:3 3 thr_kill.S: No such file or directory. (gdb) bt #0 thr_kill () at thr_kill.S:3 #1 0x00000008049a0004 in __raise (s=6) at /usr/src/lib/libc/gen/raise.c:52 #2 0x0000000804916229 in abort () at /usr/src/lib/libc/stdlib/abort.c:67 #3 0x000000000451b5f5 in fatalUncheckedError () at /usr/src/contrib/llvm-project/llvm/lib/Support/Error.cpp:112 #4 0x00000000019cf008 in GetEntryPointAddress () at /usr/src/contrib/llvm-project/llvm/include/llvm/Support/Error.h:267 #5 0x0000000001bccbd8 in ConstructorSetup () at /usr/src/contrib/llvm-project/lldb/source/Target/ThreadPlanCallFunction.cpp:67 #6 0x0000000001bcd2c0 in ThreadPlanCallFunction () at /usr/src/contrib/llvm-project/lldb/source/Target/ThreadPlanCallFunction.cpp:114 #7 0x00000000020076d4 in InferiorCallMmap () at /usr/src/contrib/llvm-project/lldb/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp:97 #8 0x0000000001f4be33 in DoAllocateMemory () at /usr/src/contrib/llvm-project/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp:604 #9 0x0000000001fe51b9 in AllocatePage () at /usr/src/contrib/llvm-project/lldb/source/Target/Memory.cpp:347 #10 0x0000000001fe5385 in AllocateMemory () at /usr/src/contrib/llvm-project/lldb/source/Target/Memory.cpp:383 #11 0x0000000001974da2 in AllocateMemory () at /usr/src/contrib/llvm-project/lldb/source/Target/Process.cpp:2301 #12 CanJIT () at /usr/src/contrib/llvm-project/lldb/source/Target/Process.cpp:2331 #13 0x0000000001a1bf3d in Evaluate () at /usr/src/contrib/llvm-project/lldb/source/Expression/UserExpression.cpp:190 #14 0x00000000019ce7a2 in EvaluateExpression () at /usr/src/contrib/llvm-project/lldb/source/Target/Target.cpp:2372 #15 0x0000000001ad784c in EvaluateExpression () at /usr/src/contrib/llvm-project/lldb/source/Commands/CommandObjectExpression.cpp:414 #16 0x0000000001ad86ae in DoExecute () at /usr/src/contrib/llvm-project/lldb/source/Commands/CommandObjectExpression.cpp:646 #17 0x0000000001a5e3ed in Execute () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandObject.cpp:1003 #18 0x0000000001a6c4a3 in HandleCommand () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandInterpreter.cpp:1762 #19 0x0000000001a6f98c in IOHandlerInputComplete () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandInterpreter.cpp:2760 #20 0x0000000001a90b08 in Run () at /usr/src/contrib/llvm-project/lldb/source/Core/IOHandler.cpp:548 #21 0x00000000019a6c6a in ExecuteIOHandlers () at /usr/src/contrib/llvm-project/lldb/source/Core/Debugger.cpp:903 #22 0x0000000001a70337 in RunCommandInterpreter () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandInterpreter.cpp:2946 #23 0x0000000001d9d812 in RunCommandInterpreter () at /usr/src/contrib/llvm-project/lldb/source/API/SBDebugger.cpp:1169 #24 0x0000000001918be8 in MainLoop () at /usr/src/contrib/llvm-project/lldb/tools/driver/Driver.cpp:675 #25 0x000000000191a114 in main () at /usr/src/contrib/llvm-project/lldb/tools/driver/Driver.cpp:890``` Fix the incorrect error catch by only instantiating an `Error` object if it is necessary. Reviewed By: JDevlieghere Differential Revision: https://reviews.llvm.org/D86355
codeplay-sycl
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Dec 9, 2020
CXXDeductionGuideDecl with a local typedef has its own copy of the
TypedefDecl with the CXXDeductionGuideDecl as the DeclContext of that
TypedefDecl.
```
template <typename T> struct A {
typedef T U;
A(U, T);
};
A a{(int)0, (int)0};
```
Related discussion on cfe-dev:
http://lists.llvm.org/pipermail/cfe-dev/2020-November/067252.html
Without this fix, when we import the CXXDeductionGuideDecl (via
VisitFunctionDecl) then before creating the Decl we must import the
FunctionType. However, the first parameter's type is the afore mentioned
local typedef. So, we then start importing the TypedefDecl whose
DeclContext is the CXXDeductionGuideDecl itself. The infinite loop is
formed.
```
#0 clang::ASTNodeImporter::VisitCXXDeductionGuideDecl(clang::CXXDeductionGuideDecl*) clang/lib/AST/ASTImporter.cpp:3543:0
#1 clang::declvisitor::Base<std::add_pointer, clang::ASTNodeImporter, llvm::Expected<clang::Decl*> >::Visit(clang::Decl*) /home/egbomrt/WORK/llvm5/build/debug/tools/clang/include/clang/AST/DeclNodes.inc:405:0
#2 clang::ASTImporter::ImportImpl(clang::Decl*) clang/lib/AST/ASTImporter.cpp:8038:0
#3 clang::ASTImporter::Import(clang::Decl*) clang/lib/AST/ASTImporter.cpp:8200:0
#4 clang::ASTImporter::ImportContext(clang::DeclContext*) clang/lib/AST/ASTImporter.cpp:8297:0
#5 clang::ASTNodeImporter::ImportDeclContext(clang::Decl*, clang::DeclContext*&, clang::DeclContext*&) clang/lib/AST/ASTImporter.cpp:1852:0
#6 clang::ASTNodeImporter::ImportDeclParts(clang::NamedDecl*, clang::DeclContext*&, clang::DeclContext*&, clang::DeclarationName&, clang::NamedDecl*&, clang::SourceLocation&) clang/lib/AST/ASTImporter.cpp:1628:0
#7 clang::ASTNodeImporter::VisitTypedefNameDecl(clang::TypedefNameDecl*, bool) clang/lib/AST/ASTImporter.cpp:2419:0
#8 clang::ASTNodeImporter::VisitTypedefDecl(clang::TypedefDecl*) clang/lib/AST/ASTImporter.cpp:2500:0
#9 clang::declvisitor::Base<std::add_pointer, clang::ASTNodeImporter, llvm::Expected<clang::Decl*> >::Visit(clang::Decl*) /home/egbomrt/WORK/llvm5/build/debug/tools/clang/include/clang/AST/DeclNodes.inc:315:0
#10 clang::ASTImporter::ImportImpl(clang::Decl*) clang/lib/AST/ASTImporter.cpp:8038:0
#11 clang::ASTImporter::Import(clang::Decl*) clang/lib/AST/ASTImporter.cpp:8200:0
#12 llvm::Expected<clang::TypedefNameDecl*> clang::ASTNodeImporter::import<clang::TypedefNameDecl>(clang::TypedefNameDecl*) clang/lib/AST/ASTImporter.cpp:165:0
#13 clang::ASTNodeImporter::VisitTypedefType(clang::TypedefType const*) clang/lib/AST/ASTImporter.cpp:1304:0
#14 clang::TypeVisitor<clang::ASTNodeImporter, llvm::Expected<clang::QualType> >::Visit(clang::Type const*) /home/egbomrt/WORK/llvm5/build/debug/tools/clang/include/clang/AST/TypeNodes.inc:74:0
#15 clang::ASTImporter::Import(clang::QualType) clang/lib/AST/ASTImporter.cpp:8071:0
#16 llvm::Expected<clang::QualType> clang::ASTNodeImporter::import<clang::QualType>(clang::QualType const&) clang/lib/AST/ASTImporter.cpp:179:0
#17 clang::ASTNodeImporter::VisitFunctionProtoType(clang::FunctionProtoType const*) clang/lib/AST/ASTImporter.cpp:1244:0
#18 clang::TypeVisitor<clang::ASTNodeImporter, llvm::Expected<clang::QualType> >::Visit(clang::Type const*) /home/egbomrt/WORK/llvm5/build/debug/tools/clang/include/clang/AST/TypeNodes.inc:47:0
#19 clang::ASTImporter::Import(clang::QualType) clang/lib/AST/ASTImporter.cpp:8071:0
#20 llvm::Expected<clang::QualType> clang::ASTNodeImporter::import<clang::QualType>(clang::QualType const&) clang/lib/AST/ASTImporter.cpp:179:0
#21 clang::QualType clang::ASTNodeImporter::importChecked<clang::QualType>(llvm::Error&, clang::QualType const&) clang/lib/AST/ASTImporter.cpp:198:0
#22 clang::ASTNodeImporter::VisitFunctionDecl(clang::FunctionDecl*) clang/lib/AST/ASTImporter.cpp:3313:0
#23 clang::ASTNodeImporter::VisitCXXDeductionGuideDecl(clang::CXXDeductionGuideDecl*) clang/lib/AST/ASTImporter.cpp:3543:0
```
The fix is to first create the TypedefDecl and only then start to import
the DeclContext.
Basically, we could do this during the import of all other Decls (not
just for typedefs). But it seems, there is only one another AST
construct that has a similar cycle: a struct defined as a function
parameter:
```
int struct_in_proto(struct data_t{int a;int b;} *d);
```
In that case, however, we had decided to return simply with an error
back then because that seemed to be a very rare construct.
Differential Revision: https://reviews.llvm.org/D92209
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Signed-off-by: Stuart Adams stuart.adams@codeplay.com
Signed-off-by: Steffen Larsen steffen.larsen@codeplay.com