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Commit31bc604

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Add file containing extensions of the LLVM C API.
Author: Andres FreundDiscussion:https://postgr.es/m/20170901064131.tazjxwus3k2w3ybh@alap3.anarazel.de
1 parent432bb9e commit31bc604

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3 files changed

+62
-1
lines changed

3 files changed

+62
-1
lines changed

‎src/backend/jit/llvm/Makefile

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@@ -37,7 +37,7 @@ override COMPILER = $(CXX) $(CFLAGS)
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OBJS=$(WIN32RES)
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# Infrastructure
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OBJS += llvmjit.o llvmjit_error.o
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OBJS += llvmjit.o llvmjit_error.o llvmjit_wrap.o
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# Code generation
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OBJS +=
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‎src/backend/jit/llvm/llvmjit_wrap.cpp

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/*-------------------------------------------------------------------------
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*
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* llvmjit_wrap.cpp
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* Parts of the LLVM interface not (yet) exposed to C.
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*
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* Copyright (c) 2016-2018, PostgreSQL Global Development Group
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*
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* IDENTIFICATION
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* src/backend/lib/llvm/llvmjit_wrap.c
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*
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*-------------------------------------------------------------------------
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*/
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extern"C"
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{
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#include"postgres.h"
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}
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#include<llvm/MC/SubtargetFeature.h>
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#include<llvm/Support/Host.h>
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#include"jit/llvmjit.h"
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/*
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* C-API extensions.
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*/
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#if defined(HAVE_DECL_LLVMGETHOSTCPUNAME) && !HAVE_DECL_LLVMGETHOSTCPUNAME
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char *LLVMGetHostCPUName(void) {
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returnstrdup(llvm::sys::getHostCPUName().data());
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}
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#endif
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char *LLVMGetHostCPUFeatures(void) {
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llvm::SubtargetFeatures Features;
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llvm::StringMap<bool> HostFeatures;
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if (llvm::sys::getHostCPUFeatures(HostFeatures))
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for (auto &F : HostFeatures)
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Features.AddFeature(F.first(), F.second);
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returnstrdup(Features.getString().c_str());
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}

‎src/include/jit/llvmjit.h

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@@ -44,6 +44,23 @@ extern void llvm_assert_in_fatal_section(void);
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externLLVMJitContext*llvm_create_context(intjitFlags);
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/*
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****************************************************************************
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* Extensions / Backward compatibility section of the LLVM C API
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* Error handling related functions.
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****************************************************************************
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*/
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#if defined(HAVE_DECL_LLVMGETHOSTCPUNAME)&& !HAVE_DECL_LLVMGETHOSTCPUNAME
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/** Get the host CPU as a string. The result needs to be disposed with
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LLVMDisposeMessage. */
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externchar*LLVMGetHostCPUName(void);
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#endif
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/** Get the host CPU features as a string. The result needs to be disposed
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with LLVMDisposeMessage. */
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externchar*LLVMGetHostCPUFeatures(void);
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#ifdef__cplusplus
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}/* extern "C" */
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#endif

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