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author | Zancanaro; Carlo <czan8762@plang3.cs.usyd.edu.au> | 2012-09-24 09:58:17 +1000 |
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committer | Zancanaro; Carlo <czan8762@plang3.cs.usyd.edu.au> | 2012-09-24 09:58:17 +1000 |
commit | 222e2a7620e6520ffaf4fc4e69d79c18da31542e (patch) | |
tree | 7bfbc05bfa3b41c8f9d2e56d53a0bc3e310df239 /clang/test/CodeGen/2002-02-14-EntryNodePreds.c | |
parent | 3d206f03985b50beacae843d880bccdc91a9f424 (diff) |
Add the clang library to the repo (with some of my changes, too).
Diffstat (limited to 'clang/test/CodeGen/2002-02-14-EntryNodePreds.c')
-rw-r--r-- | clang/test/CodeGen/2002-02-14-EntryNodePreds.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/clang/test/CodeGen/2002-02-14-EntryNodePreds.c b/clang/test/CodeGen/2002-02-14-EntryNodePreds.c new file mode 100644 index 0000000..60d1104 --- /dev/null +++ b/clang/test/CodeGen/2002-02-14-EntryNodePreds.c @@ -0,0 +1,37 @@ +// 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; + } + } +} + |