Обсуждение: pgsql: jit: Correct parameter type for generated expression evaluation

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pgsql: jit: Correct parameter type for generated expression evaluation

От
Andres Freund
Дата:
jit: Correct parameter type for generated expression evaluation functions.

clang only uses the 'i1' type for scalar booleans, not for pointers to
booleans (as the pointer might be pointing into a larger memory
allocation). Therefore a pointer-to-bool needs to the "storage" boolean.

There's no known case of wrong code generation due to this, but it seems quite
possible that it could cause problems (see e.g. 72559438f92).

Author: Andres Freund
Discussion: https://postgr.es/m/20201207212142.wz5tnbk2jsaqzogb@alap3.anarazel.de
Backpatch: 11-, where jit support was added

Branch
------
REL_13_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/01c6370a32e5875a63400c6e465de775a51ef1b8

Modified Files
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src/backend/jit/llvm/llvmjit_expr.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)