commit 91a45a33fca6f372933c6c796e55550cc40f82d4
author Qinkun Bao <qinkun@google.com> Mon May 19 18:22:13 2025 -0400
committer GitHub <noreply@github.com> Mon May 19 15:22:13 2025 -0700
tree c0108060d2d19a646334bdce94a6c66dde2e25d0
parent f27cfeae6a544775803a50b3ed4c87e9193889a2

[NFC] Pre-commit UBSAN src:*=sanitize test (#140602)

For https://github.com/llvm/llvm-project/pull/140529

clang/test/CodeGen/ubsan-src-ignorelist-category.test

diff --git a/clang/test/CodeGen/ubsan-src-ignorelist-category.test b/clang/test/CodeGen/ubsan-src-ignorelist-category.test
new file mode 100644
index 0000000..e652d88
--- /dev/null
+++ b/clang/test/CodeGen/ubsan-src-ignorelist-category.test
@@ -0,0 +1,43 @@
+// RUN: rm -rf %t
+// RUN: split-file %s %t
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsanitize=signed-integer-overflow -fsanitize-ignorelist=%t/src.ignorelist -emit-llvm %t/test1.c -o -             | FileCheck %s --check-prefixes=CHECK1,IGNORE
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsanitize=signed-integer-overflow -fsanitize-ignorelist=%t/src.ignorelist -emit-llvm %t/test2.c -o -             | FileCheck %s --check-prefixes=CHECK2
+
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsanitize=signed-integer-overflow -fsanitize-ignorelist=%t/src.ignorelist.contradict1 -emit-llvm %t/test1.c -o - | FileCheck %s --check-prefixes=CHECK1,IGNORE
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsanitize=signed-integer-overflow -fsanitize-ignorelist=%t/src.ignorelist.contradict1 -emit-llvm %t/test2.c -o - | FileCheck %s --check-prefixes=CHECK2
+
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsanitize=signed-integer-overflow -fsanitize-ignorelist=%t/src.ignorelist.contradict2 -emit-llvm %t/test1.c -o - | FileCheck %s --check-prefixes=CHECK1,IGNORE
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsanitize=signed-integer-overflow -fsanitize-ignorelist=%t/src.ignorelist.contradict2 -emit-llvm %t/test2.c -o - | FileCheck %s --check-prefixes=CHECK2
+
+
+// Verify ubsan only emits checks for files in the allowlist
+// FIXME: implement.
+
+//--- src.ignorelist
+src:*
+src:*/test1.c=sanitize
+
+//--- src.ignorelist.contradict1
+src:*
+src:*/test1.c=sanitize
+src:*/test1.c
+
+//--- src.ignorelist.contradict2
+src:*
+src:*/test1.c
+src:*/test1.c=sanitize
+
+//--- test1.c
+// CHECK1-LABEL: define dso_local i32 @add
+int add(int a, int b) {
+// IGNORE: %add = add nsw
+// SANITIZE: = call { i32, i1 } @llvm.sadd.with.overflow.i32
+    return a+b;
+}
+
+//--- test2.c
+// CHECK2-LABEL: define dso_local i32 @sub
+int sub(int a, int b) {
+    // CHECK2: %sub = sub nsw
+    return a-b;
+}