[PATCH] D105728: [clang][Codegen] Directly lower `(*((volatile int *)(0))) = 0;` into a `call void @llvm.trap()`

[Erich Keane via Phabricator via llvm-commits]

erichkeane added a comment.

This seems logical to me.  The comment needs some love, so I made my best suggestion.



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Comment at: clang/lib/CodeGen/CGExpr.cpp:1855
+    // If this is a simple volatile store to a null pointer (and said null
+    // pointre is not defined), then we have a common idiom "please crash now".
+    // However, that is not the semantics LLVM IR provides, volatile operations
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Comment at: clang/lib/CodeGen/CGExpr.cpp:1856
+    // pointre is not defined), then we have a common idiom "please crash now".
+    // However, that is not the semantics LLVM IR provides, volatile operations
+    // are not defined as trapping in LLVM IR, so this store will be
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