Обсуждение: pgsql: jit: Remove redundancies in expression evaluation code generatio

jit: Remove redundancies in expression evaluation code generation.

This merges the code emission for a number of opcodes by handling the
behavioural difference more locally. This reduces code, and also
improves the generated code a bit in some cases, by removing redundant
constants.

Author: Andres Freund
Discussion: https://postgr.es/m/20191023163849.sosqbfs5yenocez3@alap3.anarazel.de

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/e6f86f8dd9835b18890fd8e9868884dec37e3bd7

Modified Files
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src/backend/jit/llvm/llvmjit_expr.c | 277 ++++++++++++++++--------------------
1 file changed, 124 insertions(+), 153 deletions(-)