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authorAdam Jackson <ajax@redhat.com>2019-09-06 09:50:16 +0200
committerAdam Jackson <ajax@nwnk.net>2019-09-11 17:00:43 +0000
commit9abf7d575597e9dc534cccbb973f9e98338f48fe (patch)
tree2d00484b7a3aa018b71b29488ebe6ad98588ecb9
parent3c553d9cff0b541bb1f0c83b92458a312f40bb25 (diff)
gallium: Require LLVM >= 3.6
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com> Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
-rw-r--r--meson.build2
-rw-r--r--scons/llvm.py17
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_arit.c2
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_init.c178
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_misc.cpp151
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_misc.h1
6 files changed, 85 insertions, 266 deletions
diff --git a/meson.build b/meson.build
index f6017de7b99..b856f3acaec 100644
--- a/meson.build
+++ b/meson.build
@@ -1264,7 +1264,7 @@ elif with_gallium_swr
elif with_gallium_opencl or with_gallium_r600
_llvm_version = '>= 3.9.0'
else
- _llvm_version = '>= 3.5.0'
+ _llvm_version = '>= 3.6.0'
endif
_shared_llvm = get_option('shared-llvm')
diff --git a/scons/llvm.py b/scons/llvm.py
index 49e513ade18..adb93e7f41e 100644
--- a/scons/llvm.py
+++ b/scons/llvm.py
@@ -37,7 +37,7 @@ import SCons.Errors
import SCons.Util
-required_llvm_version = '3.5'
+required_llvm_version = '3.6'
def generate(env):
@@ -171,7 +171,7 @@ def generate(env):
'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
'LLVMBitReader', 'LLVMMC', 'LLVMCore', 'LLVMSupport'
])
- elif llvm_version >= distutils.version.LooseVersion('3.6'):
+ else:
env.Prepend(LIBS = [
'LLVMBitWriter', 'LLVMX86Disassembler', 'LLVMX86AsmParser',
'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
@@ -183,19 +183,6 @@ def generate(env):
'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
'LLVMBitReader', 'LLVMMC', 'LLVMCore', 'LLVMSupport'
])
- else:
- env.Prepend(LIBS = [
- 'LLVMMCDisassembler',
- 'LLVMBitWriter', 'LLVMMCJIT', 'LLVMRuntimeDyld',
- 'LLVMX86Disassembler', 'LLVMX86AsmParser', 'LLVMX86CodeGen',
- 'LLVMSelectionDAG', 'LLVMAsmPrinter', 'LLVMX86Desc',
- 'LLVMObject', 'LLVMMCParser', 'LLVMBitReader', 'LLVMX86Info',
- 'LLVMX86AsmPrinter', 'LLVMX86Utils', 'LLVMJIT',
- 'LLVMExecutionEngine', 'LLVMCodeGen', 'LLVMScalarOpts',
- 'LLVMInstCombine', 'LLVMTransformUtils', 'LLVMipa',
- 'LLVMAnalysis', 'LLVMTarget', 'LLVMMC', 'LLVMCore',
- 'LLVMSupport'
- ])
env.Append(LIBS = [
'imagehlp',
'psapi',
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_arit.c b/src/gallium/auxiliary/gallivm/lp_bld_arit.c
index 1cb81f258aa..9bf74f0a15b 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_arit.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_arit.c
@@ -1832,7 +1832,7 @@ lp_build_abs(struct lp_build_context *bld,
return a;
if(type.floating) {
- if ((LLVM_VERSION_MAJOR > 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR > 6)) && (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 9)) {
+ if (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 9) {
/* Workaround llvm.org/PR27332 */
LLVMTypeRef int_vec_type = lp_build_int_vec_type(bld->gallivm, type);
unsigned long long absMask = ~(1ULL << (type.width - 1));
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_init.c b/src/gallium/auxiliary/gallivm/lp_bld_init.c
index 52e1ace9e0d..23d330cff54 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_init.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_init.c
@@ -49,19 +49,6 @@
#include <llvm-c/Transforms/Coroutines.h>
#endif
-/* Only MCJIT is available as of LLVM SVN r216982 */
-#if LLVM_VERSION_MAJOR > 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR >= 6)
-# define USE_MCJIT 1
-#elif defined(PIPE_ARCH_PPC_64) || defined(PIPE_ARCH_S390) || defined(PIPE_ARCH_ARM) || defined(PIPE_ARCH_AARCH64)
-# define USE_MCJIT 1
-#endif
-
-#if defined(USE_MCJIT)
-static const bool use_mcjit = USE_MCJIT;
-#else
-static bool use_mcjit = FALSE;
-#endif
-
unsigned gallivm_perf = 0;
static const struct debug_named_value lp_bld_perf_flags[] = {
@@ -224,12 +211,8 @@ gallivm_free_ir(struct gallivm_state *gallivm)
FREE(gallivm->module_name);
- if (!use_mcjit) {
- /* Don't free the TargetData, it's owned by the exec engine */
- } else {
- if (gallivm->target) {
- LLVMDisposeTargetData(gallivm->target);
- }
+ if (gallivm->target) {
+ LLVMDisposeTargetData(gallivm->target);
}
if (gallivm->builder)
@@ -283,7 +266,6 @@ init_gallivm_engine(struct gallivm_state *gallivm)
gallivm->module,
gallivm->memorymgr,
(unsigned) optlevel,
- use_mcjit,
&error);
if (ret) {
_debug_printf("%s\n", error);
@@ -292,31 +274,25 @@ init_gallivm_engine(struct gallivm_state *gallivm)
}
}
- if (!use_mcjit) {
- gallivm->target = LLVMGetExecutionEngineTargetData(gallivm->engine);
- if (!gallivm->target)
- goto fail;
- } else {
- if (0) {
- /*
- * Dump the data layout strings.
- */
+ if (0) {
+ /*
+ * Dump the data layout strings.
+ */
- LLVMTargetDataRef target = LLVMGetExecutionEngineTargetData(gallivm->engine);
- char *data_layout;
- char *engine_data_layout;
+ LLVMTargetDataRef target = LLVMGetExecutionEngineTargetData(gallivm->engine);
+ char *data_layout;
+ char *engine_data_layout;
- data_layout = LLVMCopyStringRepOfTargetData(gallivm->target);
- engine_data_layout = LLVMCopyStringRepOfTargetData(target);
+ data_layout = LLVMCopyStringRepOfTargetData(gallivm->target);
+ engine_data_layout = LLVMCopyStringRepOfTargetData(target);
- if (1) {
- debug_printf("module target data = %s\n", data_layout);
- debug_printf("engine target data = %s\n", engine_data_layout);
- }
+ if (1) {
+ debug_printf("module target data = %s\n", data_layout);
+ debug_printf("engine target data = %s\n", engine_data_layout);
+ }
- free(data_layout);
- free(engine_data_layout);
- }
+ free(data_layout);
+ free(engine_data_layout);
}
return TRUE;
@@ -371,44 +347,39 @@ init_gallivm_state(struct gallivm_state *gallivm, const char *name,
* complete when MC-JIT is created. So defer the MC-JIT engine creation for
* now.
*/
- if (!use_mcjit) {
- if (!init_gallivm_engine(gallivm)) {
- goto fail;
- }
- } else {
- /*
- * MC-JIT engine compiles the module immediately on creation, so we can't
- * obtain the target data from it. Instead we create a target data layout
- * from a string.
- *
- * The produced layout strings are not precisely the same, but should make
- * no difference for the kind of optimization passes we run.
- *
- * For reference this is the layout string on x64:
- *
- * e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-f128:128:128-n8:16:32:64
- *
- * See also:
- * - http://llvm.org/docs/LangRef.html#datalayout
- */
- {
- const unsigned pointer_size = 8 * sizeof(void *);
- char layout[512];
- snprintf(layout, sizeof layout, "%c-p:%u:%u:%u-i64:64:64-a0:0:%u-s0:%u:%u",
+ /*
+ * MC-JIT engine compiles the module immediately on creation, so we can't
+ * obtain the target data from it. Instead we create a target data layout
+ * from a string.
+ *
+ * The produced layout strings are not precisely the same, but should make
+ * no difference for the kind of optimization passes we run.
+ *
+ * For reference this is the layout string on x64:
+ *
+ * e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-f128:128:128-n8:16:32:64
+ *
+ * See also:
+ * - http://llvm.org/docs/LangRef.html#datalayout
+ */
+
+ {
+ const unsigned pointer_size = 8 * sizeof(void *);
+ char layout[512];
+ snprintf(layout, sizeof layout, "%c-p:%u:%u:%u-i64:64:64-a0:0:%u-s0:%u:%u",
#ifdef PIPE_ARCH_LITTLE_ENDIAN
- 'e', // little endian
+ 'e', // little endian
#else
- 'E', // big endian
+ 'E', // big endian
#endif
- pointer_size, pointer_size, pointer_size, // pointer size, abi alignment, preferred alignment
- pointer_size, // aggregate preferred alignment
- pointer_size, pointer_size); // stack objects abi alignment, preferred alignment
+ pointer_size, pointer_size, pointer_size, // pointer size, abi alignment, preferred alignment
+ pointer_size, // aggregate preferred alignment
+ pointer_size, pointer_size); // stack objects abi alignment, preferred alignment
- gallivm->target = LLVMCreateTargetData(layout);
- if (!gallivm->target) {
- return FALSE;
- }
+ gallivm->target = LLVMCreateTargetData(layout);
+ if (!gallivm->target) {
+ return FALSE;
}
}
@@ -435,17 +406,7 @@ lp_build_init(void)
* component is linked at buildtime, which is sufficient for its static
* constructors to be called at load time.
*/
-#if defined(USE_MCJIT)
-# if USE_MCJIT
- LLVMLinkInMCJIT();
-# else
- LLVMLinkInJIT();
-# endif
-#else
- use_mcjit = debug_get_bool_option("GALLIVM_MCJIT", FALSE);
- LLVMLinkInJIT();
LLVMLinkInMCJIT();
-#endif
#ifdef DEBUG
gallivm_debug = debug_get_option_gallivm_debug();
@@ -505,11 +466,6 @@ lp_build_init(void)
util_cpu_caps.has_f16c = 0;
util_cpu_caps.has_fma = 0;
}
- if (!use_mcjit) {
- /* AVX2 support has only been tested with LLVM 3.4, and it requires
- * MCJIT. */
- util_cpu_caps.has_avx2 = 0;
- }
#ifdef PIPE_ARCH_PPC_64
/* Set the NJ bit in VSCR to 0 so denormalized values are handled as
@@ -666,29 +622,27 @@ gallivm_compile_module(struct gallivm_state *gallivm)
gallivm->module_name, time_msec);
}
- if (use_mcjit) {
- /* Setting the module's DataLayout to an empty string will cause the
- * ExecutionEngine to copy to the DataLayout string from its target
- * machine to the module. As of LLVM 3.8 the module and the execution
- * engine are required to have the same DataLayout.
- *
- * We must make sure we do this after running the optimization passes,
- * because those passes need a correct datalayout string. For example,
- * if those optimization passes see an empty datalayout, they will assume
- * this is a little endian target and will do optimizations that break big
- * endian machines.
- *
- * TODO: This is just a temporary work-around. The correct solution is
- * for gallivm_init_state() to create a TargetMachine and pull the
- * DataLayout from there. Currently, the TargetMachine used by llvmpipe
- * is being implicitly created by the EngineBuilder in
- * lp_build_create_jit_compiler_for_module()
- */
- LLVMSetDataLayout(gallivm->module, "");
- assert(!gallivm->engine);
- if (!init_gallivm_engine(gallivm)) {
- assert(0);
- }
+ /* Setting the module's DataLayout to an empty string will cause the
+ * ExecutionEngine to copy to the DataLayout string from its target machine
+ * to the module. As of LLVM 3.8 the module and the execution engine are
+ * required to have the same DataLayout.
+ *
+ * We must make sure we do this after running the optimization passes,
+ * because those passes need a correct datalayout string. For example, if
+ * those optimization passes see an empty datalayout, they will assume this
+ * is a little endian target and will do optimizations that break big endian
+ * machines.
+ *
+ * TODO: This is just a temporary work-around. The correct solution is for
+ * gallivm_init_state() to create a TargetMachine and pull the DataLayout
+ * from there. Currently, the TargetMachine used by llvmpipe is being
+ * implicitly created by the EngineBuilder in
+ * lp_build_create_jit_compiler_for_module()
+ */
+ LLVMSetDataLayout(gallivm->module, "");
+ assert(!gallivm->engine);
+ if (!init_gallivm_engine(gallivm)) {
+ assert(0);
}
assert(gallivm->engine);
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
index b3ec969ce3e..23bf1cf7042 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
+++ b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
@@ -52,9 +52,7 @@
#include <llvm/Config/llvm-config.h>
#include <llvm-c/Core.h>
-#if LLVM_VERSION_MAJOR > 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR >= 6)
#include <llvm-c/Support.h>
-#endif
#include <llvm-c/ExecutionEngine.h>
#include <llvm/Target/TargetOptions.h>
#include <llvm/ExecutionEngine/ExecutionEngine.h>
@@ -64,11 +62,7 @@
#else
#include <llvm/Target/TargetLibraryInfo.h>
#endif
-#if LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 6
-#include <llvm/ExecutionEngine/JITMemoryManager.h>
-#else
#include <llvm/ExecutionEngine/SectionMemoryManager.h>
-#endif
#include <llvm/Support/CommandLine.h>
#include <llvm/Support/Host.h>
#include <llvm/Support/PrettyStackTrace.h>
@@ -126,7 +120,7 @@ static void init_native_targets()
llvm::InitializeNativeTargetAsmPrinter();
llvm::InitializeNativeTargetDisassembler();
-#if DEBUG && (LLVM_VERSION_MAJOR > 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR >= 6))
+#if DEBUG
{
char *env_llc_options = getenv("GALLIVM_LLC_OPTIONS");
if (env_llc_options) {
@@ -188,11 +182,7 @@ gallivm_dispose_target_library_info(LLVMTargetLibraryInfoRef library_info)
}
-#if LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 6
-typedef llvm::JITMemoryManager BaseMemoryManager;
-#else
typedef llvm::RTDyldMemoryManager BaseMemoryManager;
-#endif
/*
@@ -206,76 +196,6 @@ class DelegatingJITMemoryManager : public BaseMemoryManager {
virtual BaseMemoryManager *mgr() const = 0;
public:
-#if LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 6
- /*
- * From JITMemoryManager
- */
- virtual void setMemoryWritable() {
- mgr()->setMemoryWritable();
- }
- virtual void setMemoryExecutable() {
- mgr()->setMemoryExecutable();
- }
- virtual void setPoisonMemory(bool poison) {
- mgr()->setPoisonMemory(poison);
- }
- virtual void AllocateGOT() {
- mgr()->AllocateGOT();
- /*
- * isManagingGOT() is not virtual in base class so we can't delegate.
- * Instead we mirror the value of HasGOT in our instance.
- */
- HasGOT = mgr()->isManagingGOT();
- }
- virtual uint8_t *getGOTBase() const {
- return mgr()->getGOTBase();
- }
- virtual uint8_t *startFunctionBody(const llvm::Function *F,
- uintptr_t &ActualSize) {
- return mgr()->startFunctionBody(F, ActualSize);
- }
- virtual uint8_t *allocateStub(const llvm::GlobalValue *F,
- unsigned StubSize,
- unsigned Alignment) {
- return mgr()->allocateStub(F, StubSize, Alignment);
- }
- virtual void endFunctionBody(const llvm::Function *F,
- uint8_t *FunctionStart,
- uint8_t *FunctionEnd) {
- mgr()->endFunctionBody(F, FunctionStart, FunctionEnd);
- }
- virtual uint8_t *allocateSpace(intptr_t Size, unsigned Alignment) {
- return mgr()->allocateSpace(Size, Alignment);
- }
- virtual uint8_t *allocateGlobal(uintptr_t Size, unsigned Alignment) {
- return mgr()->allocateGlobal(Size, Alignment);
- }
- virtual void deallocateFunctionBody(void *Body) {
- mgr()->deallocateFunctionBody(Body);
- }
- virtual bool CheckInvariants(std::string &s) {
- return mgr()->CheckInvariants(s);
- }
- virtual size_t GetDefaultCodeSlabSize() {
- return mgr()->GetDefaultCodeSlabSize();
- }
- virtual size_t GetDefaultDataSlabSize() {
- return mgr()->GetDefaultDataSlabSize();
- }
- virtual size_t GetDefaultStubSlabSize() {
- return mgr()->GetDefaultStubSlabSize();
- }
- virtual unsigned GetNumCodeSlabs() {
- return mgr()->GetNumCodeSlabs();
- }
- virtual unsigned GetNumDataSlabs() {
- return mgr()->GetNumDataSlabs();
- }
- virtual unsigned GetNumStubSlabs() {
- return mgr()->GetNumStubSlabs();
- }
-#endif
-
/*
* From RTDyldMemoryManager
*/
@@ -342,17 +262,6 @@ class ShaderMemoryManager : public DelegatingJITMemoryManager {
}
~GeneratedCode() {
- /*
- * Deallocate things as previously requested and
- * free shared manager when no longer used.
- */
-#if LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 6
- Vec::iterator i;
-
- assert(TheMM);
- for ( i = FunctionBody.begin(); i != FunctionBody.end(); ++i )
- TheMM->deallocateFunctionBody(*i);
-#endif
}
};
@@ -408,17 +317,12 @@ lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT,
LLVMModuleRef M,
LLVMMCJITMemoryManagerRef CMM,
unsigned OptLevel,
- int useMCJIT,
char **OutError)
{
using namespace llvm;
std::string Error;
-#if LLVM_VERSION_MAJOR > 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR >= 6)
EngineBuilder builder(std::unique_ptr<Module>(unwrap(M)));
-#else
- EngineBuilder builder(unwrap(M));
-#endif
/**
* LLVM 3.1+ haven't more "extern unsigned llvm::StackAlignmentOverride" and
@@ -445,25 +349,20 @@ lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT,
.setTargetOptions(options)
.setOptLevel((CodeGenOpt::Level)OptLevel);
- if (useMCJIT) {
-#if LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 6
- builder.setUseMCJIT(true);
-#endif
#ifdef _WIN32
- /*
- * MCJIT works on Windows, but currently only through ELF object format.
- *
- * XXX: We could use `LLVM_HOST_TRIPLE "-elf"` but LLVM_HOST_TRIPLE has
- * different strings for MinGW/MSVC, so better play it safe and be
- * explicit.
- */
+ /*
+ * MCJIT works on Windows, but currently only through ELF object format.
+ *
+ * XXX: We could use `LLVM_HOST_TRIPLE "-elf"` but LLVM_HOST_TRIPLE has
+ * different strings for MinGW/MSVC, so better play it safe and be
+ * explicit.
+ */
# ifdef _WIN64
- LLVMSetTarget(M, "x86_64-pc-win32-elf");
+ LLVMSetTarget(M, "x86_64-pc-win32-elf");
# else
- LLVMSetTarget(M, "i686-pc-win32-elf");
+ LLVMSetTarget(M, "i686-pc-win32-elf");
# endif
#endif
- }
llvm::SmallVector<std::string, 16> MAttrs;
@@ -585,28 +484,12 @@ lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT,
}
ShaderMemoryManager *MM = NULL;
- if (useMCJIT) {
- BaseMemoryManager* JMM = reinterpret_cast<BaseMemoryManager*>(CMM);
- MM = new ShaderMemoryManager(JMM);
- *OutCode = MM->getGeneratedCode();
-
-#if LLVM_VERSION_MAJOR > 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR >= 6)
- builder.setMCJITMemoryManager(std::unique_ptr<RTDyldMemoryManager>(MM));
- MM = NULL; // ownership taken by std::unique_ptr
-#else
- builder.setMCJITMemoryManager(MM);
-#endif
- } else {
-#if LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 6
- BaseMemoryManager* JMM = reinterpret_cast<BaseMemoryManager*>(CMM);
- MM = new ShaderMemoryManager(JMM);
- *OutCode = MM->getGeneratedCode();
+ BaseMemoryManager* JMM = reinterpret_cast<BaseMemoryManager*>(CMM);
+ MM = new ShaderMemoryManager(JMM);
+ *OutCode = MM->getGeneratedCode();
- builder.setJITMemoryManager(MM);
-#else
- assert(0);
-#endif
- }
+ builder.setMCJITMemoryManager(std::unique_ptr<RTDyldMemoryManager>(MM));
+ MM = NULL; // ownership taken by std::unique_ptr
ExecutionEngine *JIT;
@@ -639,11 +522,7 @@ LLVMMCJITMemoryManagerRef
lp_get_default_memory_manager()
{
BaseMemoryManager *mm;
-#if LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 6
- mm = llvm::JITMemoryManager::CreateDefaultMemManager();
-#else
mm = new llvm::SectionMemoryManager();
-#endif
return reinterpret_cast<LLVMMCJITMemoryManagerRef>(mm);
}
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_misc.h b/src/gallium/auxiliary/gallivm/lp_bld_misc.h
index 5a19ba1bd2d..eb1eac045fd 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_misc.h
+++ b/src/gallium/auxiliary/gallivm/lp_bld_misc.h
@@ -59,7 +59,6 @@ lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT,
LLVMModuleRef M,
LLVMMCJITMemoryManagerRef MM,
unsigned OptLevel,
- int useMCJIT,
char **OutError);
extern void