1// RUN: %clang_cc1 %s -emit-llvm -o - -triple x86_64-windows-msvc | FileCheck %s --check-prefix=WINDOWS 2// RUN: %clang_cc1 %s -emit-llvm -o - -triple x86_64-linux | FileCheck %s --check-prefix=LINUX 3 4// Make it possible to pass NULL through variadic functions on platforms where 5// NULL has an integer type that is more narrow than a pointer. On such 6// platforms we widen null pointer constants to a pointer-sized integer. 7 8#define NULL 0 9 10void v(const char *f, ...); 11void f(const char *f) { 12 v(f, 1, 2, 3, NULL); 13} 14// WINDOWS: define void @f(i8* %f) 15// WINDOWS: call void (i8*, ...) @v(i8* {{.*}}, i32 1, i32 2, i32 3, i64 0) 16// LINUX: define void @f(i8* %f) 17// LINUX: call void (i8*, ...) @v(i8* {{.*}}, i32 1, i32 2, i32 3, i32 0) 18