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| author | Daniel Gustafsson <dgustafsson@postgresql.org> | 2025-03-11 12:02:42 +0100 |
|---|---|---|
| committer | Daniel Gustafsson <dgustafsson@postgresql.org> | 2025-03-11 12:02:42 +0100 |
| commit | d35d32d7112bc632c6a305e9dffdec0082bbdf00 (patch) | |
| tree | 0e8b4c3c6b8603977cc68e59bc372764e7b489d8 /src/backend/jit/llvm/llvmjit_expr.c | |
| parent | 8dd7c7cd0a2605d5301266a6b67a569d6a305106 (diff) | |
| download | postgresql-d35d32d7112bc632c6a305e9dffdec0082bbdf00.tar.gz postgresql-d35d32d7112bc632c6a305e9dffdec0082bbdf00.zip | |
Add special case fast-paths for strict functions
Many STRICT function calls will have one or two arguments, in which
case we can speed up checking for NULL input by avoiding setting up
a loop over the arguments. This adds EEOP_FUNCEXPR_STRICT_1 and the
corresponding EEOP_FUNCEXPR_STRICT_2 for functions with one and two
arguments respectively.
Author: Andres Freund <andres@anarazel.de>
Co-authored-by: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Andreas Karlsson <andreas@proxel.se>
Discussion: https://postgr.es/m/415721CE-7D2E-4B74-B5D9-1950083BA03E@yesql.se
Discussion: https://postgr.es/m/20191023163849.sosqbfs5yenocez3@alap3.anarazel.de
Diffstat (limited to 'src/backend/jit/llvm/llvmjit_expr.c')
| -rw-r--r-- | src/backend/jit/llvm/llvmjit_expr.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/backend/jit/llvm/llvmjit_expr.c b/src/backend/jit/llvm/llvmjit_expr.c index 4080b01c17e..890bcb0b0a7 100644 --- a/src/backend/jit/llvm/llvmjit_expr.c +++ b/src/backend/jit/llvm/llvmjit_expr.c @@ -662,12 +662,16 @@ llvm_compile_expr(ExprState *state) case EEOP_FUNCEXPR: case EEOP_FUNCEXPR_STRICT: + case EEOP_FUNCEXPR_STRICT_1: + case EEOP_FUNCEXPR_STRICT_2: { FunctionCallInfo fcinfo = op->d.func.fcinfo_data; LLVMValueRef v_fcinfo_isnull; LLVMValueRef v_retval; - if (opcode == EEOP_FUNCEXPR_STRICT) + if (opcode == EEOP_FUNCEXPR_STRICT || + opcode == EEOP_FUNCEXPR_STRICT_1 || + opcode == EEOP_FUNCEXPR_STRICT_2) { LLVMBasicBlockRef b_nonull; LLVMBasicBlockRef *b_checkargnulls; @@ -2482,6 +2486,7 @@ llvm_compile_expr(ExprState *state) } case EEOP_AGG_STRICT_INPUT_CHECK_ARGS: + case EEOP_AGG_STRICT_INPUT_CHECK_ARGS_1: case EEOP_AGG_STRICT_INPUT_CHECK_NULLS: { int nargs = op->d.agg_strict_input_check.nargs; |