From 66c5fd6c537269eaef0f630fa14360dcaff6a295 Mon Sep 17 00:00:00 2001 From: Jeff Cohen Date: Sun, 23 Oct 2005 04:37:20 +0000 Subject: When a function takes a variable number of pointer arguments, with a zero pointer marking the end of the list, the zero *must* be cast to the pointer type. An un-cast zero is a 32-bit int, and at least on x86_64, gcc will not extend the zero to 64 bits, thus allowing the upper 32 bits to be random junk. The new END_WITH_NULL macro may be used to annotate a such a function so that GCC (version 4 or newer) will detect the use of un-casted zero at compile time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23888 91177308-0d34-0410-b5e6-96231b3b80d8 --- examples/HowToUseJIT/HowToUseJIT.cpp | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'examples/HowToUseJIT') diff --git a/examples/HowToUseJIT/HowToUseJIT.cpp b/examples/HowToUseJIT/HowToUseJIT.cpp index 192c76dcce..5ba8a7f1a8 100644 --- a/examples/HowToUseJIT/HowToUseJIT.cpp +++ b/examples/HowToUseJIT/HowToUseJIT.cpp @@ -51,7 +51,8 @@ int main() { // Create the add1 function entry and insert this entry into module M. The // function will have a return type of "int" and take an argument of "int". // The '0' terminates the list of argument types. - Function *Add1F = M->getOrInsertFunction("add1", Type::IntTy, Type::IntTy, 0); + Function *Add1F = M->getOrInsertFunction("add1", Type::IntTy, Type::IntTy, + (Type *)0); // Add a basic block to the function. As before, it automatically inserts // because of the last argument. @@ -76,7 +77,7 @@ int main() { // Now we going to create function `foo', which returns an int and takes no // arguments. - Function *FooF = M->getOrInsertFunction("foo", Type::IntTy, 0); + Function *FooF = M->getOrInsertFunction("foo", Type::IntTy, (Type *)0); // Add a basic block to the FooF function. BB = new BasicBlock("EntryBlock", FooF); -- cgit v1.2.3