llvm-for-llvmta/tools/clang/test/CodeGen/2002-08-02-UnionTest.c

20 lines
416 B
C

// 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);
}