[libcxx-commits] [libcxx] [libc++] Try to make vector benchmarks less dependent on surrounding benchmarks (PR #213938)

[Louis Dionne via libcxx-commits]

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@@ -35,6 +35,9 @@ void DoNotOptimizeData(Container& c) {
   }
 }
 
+// Align benchmark functions and never inline them to reduce changes in performance in unrelated benchmarks
+#define BENCHMARK_ATTRS [[gnu::aligned(128), gnu::noinline]]
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ldionne wrote:

I think we could disable the extension warning within this function w/ a pragma, but I wouldn't disable it wholesale for the test suite.

https://github.com/llvm/llvm-project/pull/213938