1*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -emit-llvm %s -o /dev/null 2*f4a2713aSLionel Sambuc 3*f4a2713aSLionel Sambuc /* In this testcase, the return value of foo() is being promoted to a register 4*f4a2713aSLionel Sambuc * which breaks stuff 5*f4a2713aSLionel Sambuc */ 6*f4a2713aSLionel Sambuc int printf(const char * restrict format, ...); 7*f4a2713aSLionel Sambuc 8*f4a2713aSLionel Sambuc union X { char X; void *B; int a, b, c, d;}; 9*f4a2713aSLionel Sambuc foo()10*f4a2713aSLionel Sambucunion X foo() { 11*f4a2713aSLionel Sambuc union X Global; 12*f4a2713aSLionel Sambuc Global.B = (void*)123; /* Interesting part */ 13*f4a2713aSLionel Sambuc return Global; 14*f4a2713aSLionel Sambuc } 15*f4a2713aSLionel Sambuc main()16*f4a2713aSLionel Sambucint main() { 17*f4a2713aSLionel Sambuc union X test = foo(); 18*f4a2713aSLionel Sambuc printf("0x%p", test.B); 19*f4a2713aSLionel Sambuc } 20