================
@@ -0,0 +1,127 @@
+// RUN: %clang_cc1 -fsyntax-only -verify=expected,c-local -x c %s
+// RUN: %clang_cc1 -fsyntax-only -verify=expected,cpp-local -pedantic -x c++
-std=c++11 %s
+
+void foo() {
+ int i;
+ int a[10], b[10];
+
+ [[clang::code_align(8)]]
+ for (i = 0; i < 10; ++i) { // this is OK
+ a[i] = b[i] = 0;
+ }
+ // expected-error@+1 {{'code_align' attribute only applies to 'for',
'while', and 'do' statements}}
+ [[clang::code_align(4)]]
+ i = 7;
+ for (i = 0; i < 10; ++i) {
+ a[i] = b[i] = 0;
+ }
+
+ // expected-error@+1{{'code_align' attribute cannot be applied to a
declaration}}
+ [[clang::code_align(12)]] int n[10];
+}
+
+void bar(int);
+#if __cplusplus >= 201103L
+// cpp-local-note@+2 {{declared here}}
+#endif
+void foo1(int A)
+{
+ // expected-error@+1 {{'code_align' attribute must be a constant power of
two between 1 and 4096 inclusive}}
+ [[clang::code_align(0)]]
+ for(int I=0; I<128; ++I) { bar(I); }
+
+ // expected-error@+1{{'code_align' attribute must be a constant power of two
between 1 and 4096 inclusive}}
+ [[clang::code_align(-4)]]
+ for(int I=0; I<128; ++I) { bar(I); }
+
+#if __cplusplus >= 201103L
+ // cpp-local-error@+4 {{integral constant expression must have integral or
unscoped enumeration type, not 'double'}}
+#else
+ // c-local-error@+2 {{integer constant expression must have integer type,
not 'double'}}
+#endif
----------------
smanna12 wrote:
> Rather than use `#if` to surround the comments, it's easier to understand if
> you use a custom `-verify=` prefix that's specific to C++11 and later.
Thanks @AaronBallman for the suggestion about using custom 'verify'. I have
updated test
https://github.com/llvm/llvm-project/pull/70762/commits/4c40ce27e81ae40f05aeabb513881032c04feb92.
constexpr and template only works with C++, so i have used '#if __cplusplus'
to surround the C++ source codes otherwise it causes errors like "use of
undeclared identifier 'constexpr" and "unknown type name 'template" with C flag
in RUN line.
https://github.com/llvm/llvm-project/pull/70762
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