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Commit2111a48

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Adapt expression JIT to stdbool.h introduction.
The LLVM JIT provider uses clang to synchronize types between normal Ccode and runtime generated code. Clang represents stdbool.h stylebooleans in return values & parameters differently from booleansstored in variables.Thus the expression compilation code from2a0faed needs to beadapted to9a95a77. Instead of hardcoding i8 as the type forbooleans (which already was wrong on some edge case platforms!), usepostgres' notion of a boolean as used for storage and for parameters.Per buildfarm animal xenodermus.Author: Andres Freund
1 parentfdb7894 commit2111a48

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5 files changed

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-64
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5 files changed

+132
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‎src/backend/jit/llvm/llvmjit.c

Lines changed: 30 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -46,6 +46,8 @@ typedef struct LLVMJitHandle
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/* types & functions commonly needed for JITing */
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LLVMTypeRefTypeSizeT;
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LLVMTypeRefTypeParamBool;
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LLVMTypeRefTypeStorageBool;
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LLVMTypeRefTypePGFunction;
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LLVMTypeRefStructHeapTupleFieldsField3;
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LLVMTypeRefStructHeapTupleFields;
@@ -682,7 +684,7 @@ llvm_shutdown(int code, Datum arg)
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}
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}
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/* helper for llvm_create_types */
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/* helper for llvm_create_types, returning a global var's type */
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staticLLVMTypeRef
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load_type(LLVMModuleRefmod,constchar*name)
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{
@@ -702,6 +704,31 @@ load_type(LLVMModuleRef mod, const char *name)
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returntyp;
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}
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/* helper for llvm_create_types, returning a function's return type */
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staticLLVMTypeRef
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load_return_type(LLVMModuleRefmod,constchar*name)
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{
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LLVMValueRefvalue;
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LLVMTypeReftyp;
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/* this'll return a *pointer* to the function */
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value=LLVMGetNamedFunction(mod,name);
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if (!value)
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elog(ERROR,"function %s is unknown",name);
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/* get type of function pointer */
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typ=LLVMTypeOf(value);
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Assert(typ!=NULL);
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/* dereference pointer */
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typ=LLVMGetElementType(typ);
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Assert(typ!=NULL);
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/* and look at return type */
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typ=LLVMGetReturnType(typ);
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Assert(typ!=NULL);
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returntyp;
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}
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/*
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* Load required information, types, function signatures from llvmjit_types.c
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* and make them available in global variables.
@@ -740,6 +767,8 @@ llvm_create_types(void)
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llvm_layout=pstrdup(LLVMGetDataLayoutStr(mod));
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TypeSizeT=load_type(mod,"TypeSizeT");
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TypeParamBool=load_return_type(mod,"FunctionReturningBool");
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TypeStorageBool=load_type(mod,"TypeStorageBool");
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TypePGFunction=load_type(mod,"TypePGFunction");
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StructExprContext=load_type(mod,"StructExprContext");
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StructExprEvalStep=load_type(mod,"StructExprEvalStep");

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