[clang] [analyzer] use `invalidateRegions()` in `VisitGCCAsmStmt` (PR #109838)

[Pavel Skripkin via cfe-commits]

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@@ -40,7 +42,19 @@ void testInlineAsmMemcpyUninit(void)
 {
     int a[10], b[10] = {}, c;
     MyMemcpy(&a[1], &b[1], sizeof(b) - sizeof(b[1]));
-    c = a[0]; // expected-warning{{Assigned value is garbage or undefined}}
+    c = a[0]; // FIXME: should be warning about uninitialized value, but invalidateRegions() also
+              // invalidates super region.
+}
+
+void testInlineAsmMemcpyUninitLoop(const void *src, unsigned long len)
+{
+    int a[10], c;
+    unsigned long toCopy = sizeof(a) < len ? sizeof(a) : len;
+
+    MyMemcpy(a, src, toCopy);
+
+    for (unsigned long i = 0; i < toCopy; ++i)
+      c = a[i]; // no-warning
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pskrgag wrote:

Rewrote test in linear manner. It's just possible to directly access 1st element to test warning

https://github.com/llvm/llvm-project/pull/109838