| 1 | // RUN: %clang_cc1 -emit-llvm %s -o /dev/null |
|---|
| 2 | |
|---|
| 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 now |
|---|
| 5 | * inserts an entry node regardless of whether or not it has to insert allocas. |
|---|
| 6 | */ |
|---|
| 7 | |
|---|
| 8 | struct edge_rec |
|---|
| 9 | { |
|---|
| 10 | struct VERTEX *v; |
|---|
| 11 | struct edge_rec *next; |
|---|
| 12 | int wasseen; |
|---|
| 13 | int more_data; |
|---|
| 14 | }; |
|---|
| 15 | |
|---|
| 16 | typedef struct edge_rec *QUAD_EDGE; |
|---|
| 17 | |
|---|
| 18 | typedef struct { |
|---|
| 19 | QUAD_EDGE left, right; |
|---|
| 20 | } EDGE_PAIR; |
|---|
| 21 | |
|---|
| 22 | struct EDGE_STACK { |
|---|
| 23 | int ptr; |
|---|
| 24 | QUAD_EDGE *elts; |
|---|
| 25 | int stack_size; |
|---|
| 26 | }; |
|---|
| 27 | |
|---|
| 28 | int 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 | |
|---|