| // RUN: %clang_cc1 -emit-llvm %s -o /dev/null |
| |
| /* GCC Used to generate code that contained a branch to the entry node of |
| * the do_merge function. This is illegal LLVM code. To fix this, GCC now |
| * inserts an entry node regardless of whether or not it has to insert allocas. |
| */ |
| |
| struct edge_rec |
| { |
| struct VERTEX *v; |
| struct edge_rec *next; |
| int wasseen; |
| int more_data; |
| }; |
| |
| typedef struct edge_rec *QUAD_EDGE; |
| |
| typedef struct { |
| QUAD_EDGE left, right; |
| } EDGE_PAIR; |
| |
| struct EDGE_STACK { |
| int ptr; |
| QUAD_EDGE *elts; |
| int stack_size; |
| }; |
| |
| int do_merge(QUAD_EDGE ldo, QUAD_EDGE rdo) { |
| int lvalid; |
| QUAD_EDGE basel,rcand; |
| while (1) { |
| if (!lvalid) { |
| return (int)basel->next; |
| } |
| } |
| } |
| |
