[clang] [CIR] Upstream support for setjmp & longjmp builtins (PR #178989)

[Ayokunle Amodu via cfe-commits]

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+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir -mmlir --mlir-print-ir-before=cir-lowering-prepare %s -o - 2>&1 | FileCheck %s -check-prefix=BEFORE-LOWERING-PREPARE
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ayokunle321 wrote:

I had just thought the incubator was a the source of truth. I'll make sure to review things properly and ask these type of questions before upstreaming.

https://github.com/llvm/llvm-project/pull/178989