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Add missing NULL check in CanBeType

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This commit is contained in:
Aaron Gutierrez
2017-05-02 22:26:21 -04:00
parent b3b02df569
commit 93c563e073
3 changed files with 14 additions and 12 deletions
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2
tests_ispcpp/error_0.ispc
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@@ -1,6 +1,6 @@
//@error
//assigning mismatched polymorphic types
export void foo(floating$0 bar) {
export void foo(uniform floating$0 bar) {
floating$1 baz = bar;
}

4
tests_ispcpp/error_2.ispc
View File

@@ -1,6 +1,6 @@
//@error
//assigning mismatched polymorphic types
export void foo(number$0 bar) {
floating$0 baz = bar;
export void foo(uniform floating$0 bar) {
integer baz = bar;
}

20
type.cpp
View File

@@ -855,15 +855,17 @@ PolyType::CanBeType(const Type *t) const {
const AtomicType *at = CastType<AtomicType>(t);
switch (restriction) {
case TYPE_INTEGER:
return at->IsIntType();
case TYPE_FLOATING:
return at->IsFloatType();
case TYPE_NUMBER:
return at->IsIntType() || at->IsFloatType();
default:
FATAL("Unmatched case for polymorphic restriction");
if (at) {
switch (restriction) {
case TYPE_INTEGER:
return at->IsIntType();
case TYPE_FLOATING:
return at->IsFloatType();
case TYPE_NUMBER:
return at->IsIntType() || at->IsFloatType();
default:
FATAL("Unmatched case for polymorphic restriction");
}
}
// not an atomic type or polymorphic type