[clang] [clang][CodeGen][UBSan] Fixing shift-exponent generation for _BitInt (PR #80515)

[Björn Pettersson via cfe-commits]

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@@ -0,0 +1,36 @@
+// RUN: %clang_cc1 %s -O0 -fsanitize=shift-exponent -emit-llvm -o - | FileCheck %s
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bjope wrote:

I think you for example want to use `-std=c2x -triple=x86_64-unknown-linux` here.
(Not sure exactly if you for example need the triple, but I fear that you would end up with failing build bots otherwise as not all targets support C23 _BitInt literals by default.)

https://github.com/llvm/llvm-project/pull/80515