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Don't generate tuple deforming functions for virtual slots.

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Virtual tuple table slots never need tuple deforming. Therefore, if we
know at expression compilation time, that a certain slot will always
be virtual, there's no need to create a tuple deforming routine for
it.

Author: Andres Freund
Discussion: https://postgr.es/m/20181105210039.hh4vvi4vwoq5ba2q@alap3.anarazel.de
This commit is contained in:
Andres Freund
2018-11-15 22:00:30 -08:00
parent 15d8f83128
commit 7ef04e4d2c
3 changed files with 10 additions and 2 deletions
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4
src/include/jit/llvmjit.h
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@ -111,7 +111,9 @@ extern void llvm_inline(LLVMModuleRef mod);
****************************************************************************
*/
extern bool llvm_compile_expr(struct ExprState *state);
extern LLVMValueRef slot_compile_deform(struct LLVMJitContext *context, TupleDesc desc, int natts);
struct TupleTableSlotOps;
extern LLVMValueRef slot_compile_deform(struct LLVMJitContext *context, TupleDesc desc,
const struct TupleTableSlotOps *ops, int natts);
/*
****************************************************************************