38 lines · c
1// RUN: %clang_cc1 -emit-llvm %s -o /dev/null2 3/* GCC Used to generate code that contained a branch to the entry node of 4 * the do_merge function. This is illegal LLVM code. To fix this, GCC now5 * inserts an entry node regardless of whether or not it has to insert allocas.6 */7 8struct edge_rec9{10 struct VERTEX *v;11 struct edge_rec *next;12 int wasseen;13 int more_data;14};15 16typedef struct edge_rec *QUAD_EDGE;17 18typedef struct {19 QUAD_EDGE left, right;20} EDGE_PAIR;21 22struct EDGE_STACK {23 int ptr;24 QUAD_EDGE *elts;25 int stack_size;26};27 28int do_merge(QUAD_EDGE ldo, QUAD_EDGE rdo) {29 int lvalid;30 QUAD_EDGE basel,rcand;31 while (1) {32 if (!lvalid) {33 return (int)basel->next;34 }35 }36}37 38