[clang] [clang][Sema] Add buffer-size checks for unistd I/O functions (PR #224979)

[Nick Desaulniers via cfe-commits]

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@@ -0,0 +1,246 @@
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c %s -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c++ %s -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c %s -DWRONG_ARITY -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c++ %s -DWRONG_ARITY -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c %s -DWRONG_BUFFER -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c++ %s -DWRONG_BUFFER -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c %s -DWRONG_COUNT -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c++ %s -DWRONG_COUNT -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c %s -DNO_BUILTIN -fno-builtin -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c++ %s -DNO_BUILTIN -fno-builtin -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c %s -DWRONG_FD -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c++ %s -DWRONG_FD -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c %s -DWRONG_OFFSET -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c++ %s -DWRONG_OFFSET -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c %s -DWRONG_PATH -verify -Werror
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -x c++ %s -DWRONG_PATH -verify -Werror
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nickdesaulniers wrote:

This is a huge number of RUN lines added across the PR. These cost wall time; surely we can consolidate many of the newly added test files and RUN lines?

https://github.com/llvm/llvm-project/pull/224979