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Commit7ec0d80

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Add helpers for emitting LLVM IR.
These basically just help to make code a bit more concise and pgindentproof.Author: Andres FreundDiscussion:https://postgr.es/m/20170901064131.tazjxwus3k2w3ybh@alap3.anarazel.de
1 parent250bca7 commit7ec0d80

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‎src/include/jit/llvmjit_emit.h

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/*
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* llvmjit_emit.h
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* Helpers to make emitting LLVM IR a it more concise and pgindent proof.
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*
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* Copyright (c) 2018, PostgreSQL Global Development Group
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*
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* src/include/lib/llvmjit_emit.h
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*/
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#ifndefLLVMJIT_EMIT_H
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#defineLLVMJIT_EMIT_H
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#include<llvm-c/Core.h>
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/*
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* Emit a non-LLVM pointer as an LLVM constant.
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*/
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staticinlineLLVMValueRef
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l_ptr_const(void*ptr,LLVMTypeReftype)
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{
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LLVMValueRefc=LLVMConstInt(TypeSizeT, (uintptr_t)ptr, false);
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returnLLVMConstIntToPtr(c,type);
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}
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/*
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* Emit pointer.
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*/
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staticinlineLLVMTypeRef
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l_ptr(LLVMTypeReft)
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{
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returnLLVMPointerType(t,0);
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}
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/*
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* Emit constant integer.
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*/
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staticinlineLLVMValueRef
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l_int8_const(int8i)
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{
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returnLLVMConstInt(LLVMInt8Type(),i, false);
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}
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/*
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* Emit constant integer.
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*/
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staticinlineLLVMValueRef
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l_int16_const(int16i)
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{
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returnLLVMConstInt(LLVMInt16Type(),i, false);
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}
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/*
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* Emit constant integer.
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*/
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staticinlineLLVMValueRef
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l_int32_const(int32i)
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{
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returnLLVMConstInt(LLVMInt32Type(),i, false);
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}
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/*
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* Emit constant integer.
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*/
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staticinlineLLVMValueRef
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l_int64_const(int64i)
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{
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returnLLVMConstInt(LLVMInt64Type(),i, false);
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}
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/*
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* Emit constant integer.
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*/
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staticinlineLLVMValueRef
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l_sizet_const(size_ti)
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{
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returnLLVMConstInt(TypeSizeT,i, false);
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}
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/*
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* Load a pointer member idx from a struct.
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*/
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staticinlineLLVMValueRef
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l_load_struct_gep(LLVMBuilderRefb,LLVMValueRefv,int32idx,constchar*name)
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{
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LLVMValueRefv_ptr=LLVMBuildStructGEP(b,v,idx,"");
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returnLLVMBuildLoad(b,v_ptr,name);
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}
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/*
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* Load value of a pointer, after applying one index operation.
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*/
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staticinlineLLVMValueRef
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l_load_gep1(LLVMBuilderRefb,LLVMValueRefv,LLVMValueRefidx,constchar*name)
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{
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LLVMValueRefv_ptr=LLVMBuildGEP(b,v,&idx,1,"");
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returnLLVMBuildLoad(b,v_ptr,name);
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}
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/* separate, because pg_attribute_printf(2, 3) can't appear in definition */
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staticinlineLLVMBasicBlockRefl_bb_before_v(LLVMBasicBlockRefr,constchar*fmt,...)pg_attribute_printf(2,3);
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/*
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* Insert a new basic block, just before r, the name being determined by fmt
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* and arguments.
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*/
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staticinlineLLVMBasicBlockRef
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l_bb_before_v(LLVMBasicBlockRefr,constchar*fmt,...)
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{
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charbuf[512];
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va_listargs;
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va_start(args,fmt);
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vsnprintf(buf,sizeof(buf),fmt,args);
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va_end(args);
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returnLLVMInsertBasicBlock(r,buf);
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}
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/* separate, because pg_attribute_printf(2, 3) can't appear in definition */
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staticinlineLLVMBasicBlockRefl_bb_append_v(LLVMValueReff,constchar*fmt,...)pg_attribute_printf(2,3);
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/*
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* Insert a new basic block after previous basic blocks, the name being
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* determined by fmt and arguments.
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*/
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staticinlineLLVMBasicBlockRef
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l_bb_append_v(LLVMValueReff,constchar*fmt,...)
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{
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charbuf[512];
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va_listargs;
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va_start(args,fmt);
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vsnprintf(buf,sizeof(buf),fmt,args);
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va_end(args);
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returnLLVMAppendBasicBlock(f,buf);
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}
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/*
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* Mark a callsite as readonly.
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*/
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staticinlinevoid
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l_callsite_ro(LLVMValueReff)
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{
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constcharargname[]="readonly";
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LLVMAttributeRefref;
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ref=LLVMCreateStringAttribute(LLVMGetGlobalContext(),
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argname,
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sizeof(argname)-1,
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NULL,0);
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LLVMAddCallSiteAttribute(f,LLVMAttributeFunctionIndex,ref);
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}
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/*
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* Mark a callsite as alwaysinline.
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*/
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staticinlinevoid
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l_callsite_alwaysinline(LLVMValueReff)
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{
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constcharargname[]="alwaysinline";
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intid;
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LLVMAttributeRefattr;
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id=LLVMGetEnumAttributeKindForName(argname,
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sizeof(argname)-1);
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attr=LLVMCreateEnumAttribute(LLVMGetGlobalContext(),id,0);
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LLVMAddCallSiteAttribute(f,LLVMAttributeFunctionIndex,attr);
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}
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/*
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* Emit code to switch memory context.
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*/
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staticinlineLLVMValueRef
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l_mcxt_switch(LLVMModuleRefmod,LLVMBuilderRefb,LLVMValueRefnc)
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{
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constchar*cmc="CurrentMemoryContext";
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LLVMValueRefcur;
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LLVMValueRefret;
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if (!(cur=LLVMGetNamedGlobal(mod,cmc)))
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cur=LLVMAddGlobal(mod,l_ptr(StructMemoryContextData),cmc);
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ret=LLVMBuildLoad(b,cur,cmc);
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LLVMBuildStore(b,nc,cur);
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returnret;
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}
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#endif

‎src/tools/pgindent/typedefs.list

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LDAPURLDesc
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LDAP_TIMEVAL
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LINE
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LLVMBuilderRef
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LLVMJitContext
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LLVMJitHandle
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LLVMTypeRef

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