[clang] [clang] Ensure minimal alignment of global vars of incomplete type. (PR #72886)

[Eli Friedman via cfe-commits]

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+// RUN: %clang --target=s390x-linux -S -emit-llvm -o - %s | FileCheck %s
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efriedma-quic wrote:

Sorry, I missed this when reviewing.

We generally only use Driver tests when we're trying to test some aspect of the driver.  For arm-alignment.c, it isn't really trying to test the code generation itself; it's trying to test the effect of alignment-related flags.

https://github.com/llvm/llvm-project/pull/72886