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1/2 off all structs should not have any virtual functions. 

Replace magic numbers with uuids.

llvm-svn: 92941
This commit is contained in:
Mike Stump 2010-01-07 20:55:28 +00:00
parent 5b053c5278
commit 441793352d
1 changed files with 13 additions and 8 deletions
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21
clang/utils/VtableTest/gen.cc
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@ -26,7 +26,7 @@ void g(int i) {
printf("%d", i);
}
int vfn = 0;
int uuid = 0;
char base_present[N_STRUCTS][N_STRUCTS];
bool is_ambiguous(int s, int base) {
@ -119,12 +119,15 @@ void gs(int s) {
/* Virtual functions */
static int funcs[N_FUNCS];
int n_funcs = random() % N_FUNCS;
// PARAM: 1/2 of all structs should have no virtual functions
int n_funcs = random() % (N_FUNCS*2);
if (n_funcs > N_FUNCS)
n_funcs = 0;
int old_func = -1;
for (int i = 0; i < n_funcs; ++i) {
int fn = old_func + random() % FUNCSPACING + 1;
funcs[i] = fn;
g(" virtual void fun"); g(fn); g("(char *t) { mix(\"vfn this offset\", (char *)this - t); mix(\"vfn uuid\", "); g(++vfn); gl("); }");
g(" virtual void fun"); g(fn); g("(char *t) { mix(\"vfn this offset\", (char *)this - t); mix(\"vfn uuid\", "); g(++uuid); gl("); }");
old_func = fn;
}
@ -154,7 +157,7 @@ void gs(int s) {
for (int i = 0; i < n_bases; ++i) {
g(" if ((char *)dynamic_cast<s"); g(bases[i]); gl("*>(this))");
g(" mix(\"base dyn cast\", t - (char *)dynamic_cast<s"); g(bases[i]); gl("*>(this));");
gl(" else mix(\"no dyncast\", 666);");
g(" else mix(\"no dyncast\", "); g(++uuid); gl(");");
}
}
@ -162,15 +165,17 @@ void gs(int s) {
for (int i = 0; i < n_fields; ++i) {
g(" mix(\"field offset\", (char *)&field"); g(i); gl(" - (char *)this);");
}
if (n_fields == 0)
gl(" mix(\"no fields\", 42);");
if (n_fields == 0) {
g(" mix(\"no fields\", "); g(++uuid); gl(");");
}
/* check functions */
for (int i = 0; i < n_funcs; ++i) {
g(" fun"); g(funcs[i]); gl("(t);");
}
if (n_funcs == 0)
gl(" mix(\"no funcs\", 13);");
if (n_funcs == 0) {
g(" mix(\"no funcs\", "); g(++uuid); gl(");");
}
gl(" }");