[clang] [clang][CodeGen] Don't crash on sizeless output. (PR #99849)

[Eli Friedman via cfe-commits]

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@@ -0,0 +1,7 @@
+// RUN: not %clang_cc1 -S %s -o /dev/null 2>&1 | FileCheck %s
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efriedma-quic wrote:

Please use "-verify" to check clang diagnostics, not FileCheck.

Is there any existing file with inline asm diagnostics this can be added to?

https://github.com/llvm/llvm-project/pull/99849