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 10 void v(const char *f, ...); 11 void 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
