[clang] [Clang] Fix incorrect passing of _BitInt args (PR #90741)

[Eli Friedman via cfe-commits]

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@@ -0,0 +1,14 @@
+// REQUIRES: arm-registered-target
+// RUN: %clang_cc1 -triple aarch64-none-elf \
+// RUN:   -O2 \
+// RUN:   -emit-llvm -fexperimental-max-bitint-width=1024 -o - %s | FileCheck %s
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efriedma-quic wrote:

Can we integrate this into some existing test file for aarch64 calling conventions?

https://github.com/llvm/llvm-project/pull/90741