[clang] [CIR][ARM] Generic 32-bit ARM codegen and lowering support (PR #204360)

[Akshay K via cfe-commits]

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@@ -0,0 +1,32 @@
+// 32-bit ARM uses a two-word array cookie { element_size, element_count }, so a
+// new[] allocation is two size_t words larger than the element data: the data
+// starts 8 bytes in, and delete[] recovers the allocation base 8 bytes before
+// the data. (The generic Itanium cookie is a single size_t.)
+//
+// RUN: %clang_cc1 -std=c++20 -triple arm-linux-gnueabihf -fclangir -emit-llvm %s -o %t.ll
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kumarak wrote:

This has been moved to a separate PR and added checks for CIR output as well. 

https://github.com/llvm/llvm-project/pull/204360