[clang] [clang] Make sure EvalInfo pointer isn't null (PR #155563)

[Timm Baeder via cfe-commits]

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@@ -391,3 +391,10 @@ void ghissue109095() {
   _Static_assert(i == c[0]); // expected-error {{static assertion expression is not an integral constant expression}}\
                              // expected-note {{initializer of 'i' is not a constant expression}}
 }
+
+typedef bool __vbool2  __attribute__((ext_vector_type(2)));
+typedef short v2int16_t __attribute__((ext_vector_type(2)));
+
+bool issue155507(v2int16_t a, v2int16_t b) {
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tbaederr wrote:

Not that I could find.

https://github.com/llvm/llvm-project/pull/155563