================
@@ -157,3 +157,33 @@ unexpected b; // expected-error@33 1-1 {{unknown type}}
// what-error {{huh?}}
// CHECK9: error: 'what-error' diagnostics expected but not seen:
#endif
+
+#ifdef TEST_WIDE_DELIM
+// RUN: not %clang_cc1 -DTEST_WIDE_DELIM -verify %s 2>&1 | FileCheck
-check-prefix=CHECK-WIDE-DELIM %s
+
+// expected-error {{{some message with {{}} in it}}}
+// expected-error {{{some message with {}} in it}}}
+// expected-error {{{some message with {{} in it}}}
+
+// expected-error-re {{{some {{.*}} regex with double braces}}}
+// expected-error-re {{{some message with {{} in it}}}
+
+// expected-error {{{mismatched delim}}
+// expected-error-re {{{mismatched re {{.*} }}}
+// expected-error-re {{{no regex}}}
+
+#if 0
+// CHECK-WIDE-DELIM: error: 'expected-error' diagnostics expected but not
seen:
+// CHECK-WIDE-DELIM-NEXT: verify.c Line 164: some message with {{[{]{}[}]}}
in it
+// CHECK-WIDE-DELIM-NEXT: verify.c Line 165: some message with {}} in it
+// CHECK-WIDE-DELIM-NEXT: verify.c Line 166: some message with {{[{]{[}]}}
in it
+// CHECK-WIDE-DELIM-NEXT: verify.c Line 168: {some {{.*}} regex with double
braces
+// CHECK-WIDE-DELIM-NEXT: error: 'expected-error' diagnostics seen but not
expected:
+// CHECK-WIDE-DELIM-NEXT: verify.c Line 169: cannot find end ('}}') of
expected regex
+// CHECK-WIDE-DELIM-NEXT: verify.c Line 171: cannot find end ('}}}') of
expected string
+// CHECK-WIDE-DELIM-NEXT: verify.c Line 172: cannot find end ('}}') of
expected regex
+// CHECK-WIDE-DELIM-NEXT: verify.c Line 173: cannot find start of regex
('{{[{][{]}}') in {no regex
----------------
sethp wrote:
This is probably confusing; it's `{no regex` because the delimiter is always
`{{` in regex-mode, so the string is parsed like:
```
// expected-error-re {{{no regex}}}
|---------|^ trailing }
```
https://github.com/llvm/llvm-project/pull/77326
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