From aa38889704f3518878aeb82cb03d63c8b592ac0e Mon Sep 17 00:00:00 2001
From: gingerBill <bill@gingerbill.org>
Date: Fri, 7 Jul 2023 23:23:47 +0100
Subject: [PATCH] Fix issue with pointer casting internal llvm intrinsics

---
 src/llvm_backend_const.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/llvm_backend_const.cpp b/src/llvm_backend_const.cpp
index efe1e4d45..2a121ff5d 100644
--- a/src/llvm_backend_const.cpp
+++ b/src/llvm_backend_const.cpp
@@ -483,7 +483,10 @@ gb_internal lbValue lb_const_value(lbModule *m, Type *type, ExactValue value, bo
 		GB_ASSERT(res.value != nullptr);
 		GB_ASSERT(LLVMGetValueKind(res.value) == LLVMFunctionValueKind);
 
-		res.value = LLVMConstPointerCast(res.value, lb_type(m, res.type));
+		if (LLVMGetIntrinsicID(res.value) == 0) {
+			// NOTE(bill): do not cast intrinsics as they are not really procedures that can be casted
+			res.value = LLVMConstPointerCast(res.value, lb_type(m, res.type));
+		}
 		return res;
 	}