From 222e2a7620e6520ffaf4fc4e69d79c18da31542e Mon Sep 17 00:00:00 2001 From: "Zancanaro; Carlo" Date: Mon, 24 Sep 2012 09:58:17 +1000 Subject: Add the clang library to the repo (with some of my changes, too). --- clang/test/CodeGen/2002-08-02-UnionTest.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 clang/test/CodeGen/2002-08-02-UnionTest.c (limited to 'clang/test/CodeGen/2002-08-02-UnionTest.c') diff --git a/clang/test/CodeGen/2002-08-02-UnionTest.c b/clang/test/CodeGen/2002-08-02-UnionTest.c new file mode 100644 index 0000000..2be1499 --- /dev/null +++ b/clang/test/CodeGen/2002-08-02-UnionTest.c @@ -0,0 +1,19 @@ +// RUN: %clang_cc1 -emit-llvm %s -o /dev/null + +/* In this testcase, the return value of foo() is being promoted to a register + * which breaks stuff + */ +int printf(const char * restrict format, ...); + +union X { char X; void *B; int a, b, c, d;}; + +union X foo() { + union X Global; + Global.B = (void*)123; /* Interesting part */ + return Global; +} + +int main() { + union X test = foo(); + printf("0x%p", test.B); +} -- cgit v1.2.3