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Unified Diff: test/Transforms/MinSFI/sandbox-memory-accesses-unhandled-intrinsic.ll

Issue 939073008: Rebased PNaCl localmods in LLVM to 223109 (Closed)
Patch Set: undo localmod Created 5 years, 10 months ago
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Index: test/Transforms/MinSFI/sandbox-memory-accesses-unhandled-intrinsic.ll
diff --git a/test/Transforms/MinSFI/sandbox-memory-accesses-unhandled-intrinsic.ll b/test/Transforms/MinSFI/sandbox-memory-accesses-unhandled-intrinsic.ll
new file mode 100644
index 0000000000000000000000000000000000000000..b8a23046cdf400191cc95b213cdd70dafb9d1ae6
--- /dev/null
+++ b/test/Transforms/MinSFI/sandbox-memory-accesses-unhandled-intrinsic.ll
@@ -0,0 +1,16 @@
+; RUN: not opt %s -minsfi-sandbox-memory-accesses -S 2>&1 | FileCheck %s
+
+; The SandboxMemoryAccess pass should fail if it encounters an unexpected
+; intrinsic such as this '@llvm.objectsize'. This mechanism protects MinSFI
+; from unsafe operations it does not handle appearing in the bitcode.
+; This could be a result of a bug in the compiler or a newly introduced
+; LLVM instruction.
+
+declare i32 @llvm.objectsize.i32(i8*, i1)
+
+define i32 @test_unhandled_intrinsic(i8* %ptr) {
+ %val = call i32 @llvm.objectsize.i32(i8* %ptr, i1 true)
+ ret i32 %val
+}
+
+; CHECK: LLVM ERROR: SandboxMemoryAccesses: unexpected instruction with pointer-type operands
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