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authorRamon de C Valle <rcvalle@users.noreply.github.com>2023-07-11 16:19:42 -0700
committerRamon de C Valle <rcvalle@users.noreply.github.com>2023-08-07 15:59:15 -0700
commitf837c48f0d8da1a205b7ab97846bc90f8d497271 (patch)
tree75bcbef3d899a0b8631e3e1e89ce777d33abfeaf /compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
parent3c554f5cb4965a08f2a2b45ab4bba321a5f249fa (diff)
downloadrust-f837c48f0d8da1a205b7ab97846bc90f8d497271.tar.gz
rust-f837c48f0d8da1a205b7ab97846bc90f8d497271.zip
CFI: Fix error compiling core with LLVM CFI enabled
Fix #90546 by filtering out global value function pointer types from the
type tests, and adding the LowerTypeTests pass to the rustc LTO
optimization pipelines.
Diffstat (limited to 'compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp')
-rw-r--r--compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp11
1 files changed, 11 insertions, 0 deletions
diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
index ea04899ab68..bc2b9f908f4 100644
--- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
+++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
@@ -1952,3 +1952,14 @@ extern "C" int32_t LLVMRustGetElementTypeArgIndex(LLVMValueRef CallSite) {
 extern "C" bool LLVMRustIsBitcode(char *ptr, size_t len) {
   return identify_magic(StringRef(ptr, len)) == file_magic::bitcode;
 }
+
+extern "C" bool LLVMRustIsNonGVFunctionPointerTy(LLVMValueRef V) {
+  if (unwrap<Value>(V)->getType()->isPointerTy()) {
+    if (auto *GV = dyn_cast<GlobalValue>(unwrap<Value>(V))) {
+      if (GV->getValueType()->isFunctionTy())
+        return false;
+    }
+    return true;
+  }
+  return false;
+}