| // 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; | |
| } | |
| } | |
| } | |