================
@@ -0,0 +1,7 @@
+// REQUIRES: bpf-registered-target
+// RUN: %clang_cc1 %s -triple bpf -verify
+
+__attribute__((bpf_fastcall)) int var; // expected-warning {{'bpf_fastcall'
attribute only applies to functions and function pointers}}
+
+__attribute__((bpf_fastcall)) void func();
+__attribute__((bpf_fastcall(1))) void func_invalid(); // expected-error
{{'bpf_fastcall' attribute takes no arguments}}
----------------
AaronBallman wrote:
Can you also add a test applying it to a function pointer, with some tests
showing that this attribute is not part of the type (so there's no pointer
mismatches)?
If you have to care about C++ member functions, a test for that would be useful
as well (and a codegen test too).
https://github.com/llvm/llvm-project/pull/101228
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