llvm-project/clang/test/CodeGen/2003-08-21-StmtExpr.c

// RUN: %clang_cc1 -emit-llvm %s  -o /dev/null


typedef struct {
  unsigned long val;
} structty;

void bar(structty new_mask);
static void foo(void) {
  bar(({ structty mask; mask; }));
}