fix benchmark

poor-circle · poor-circle · commit f52e3fa4e7de · 2025-11-12T18:38:39.000+08:00
diff --git a/libcxx/test/benchmarks/memory/align.bench.cpp b/libcxx/test/benchmarks/memory/align.bench.cpp
@@ -15,12 +15,11 @@
 
 static void BM_align(benchmark::State& state) {
   char buffer[1024];
-  char* data = buffer + 123;
-  std::size_t sz{1024 - 123};
-  void* p;
+  void* data = buffer + 123;
+  std::size_t sz{sizeof(buffer) - 123};
 
   for (auto _ : state) {
-    benchmark::DoNotOptimize(std::align(state.range(), state.range(), p, sz))
+    benchmark::DoNotOptimize(std::align(state.range(), state.range(), data, sz));
   }
 }
 BENCHMARK(BM_align)->Range(1, 256);

Original file line number	Diff line number	Diff line change
`@@ -15,12 +15,11 @@`
`15`	`15`
`16`	`16`	`static void BM_align(benchmark::State& state) {`
`17`	`17`	`char buffer[1024];`
`18`		`- char* data = buffer + 123;`
`19`		`- std::size_t sz{1024 - 123};`
`20`		`- void* p;`
	`18`	`+ void* data = buffer + 123;`
	`19`	`+ std::size_t sz{sizeof(buffer) - 123};`
`21`	`20`
`22`	`21`	`for (auto _ : state) {`
`23`		`- benchmark::DoNotOptimize(std::align(state.range(), state.range(), p, sz))`
	`22`	`+ benchmark::DoNotOptimize(std::align(state.range(), state.range(), data, sz));`
`24`	`23`	`}`
`25`	`24`	`}`
`26`	`25`	`BENCHMARK(BM_align)->Range(1, 256);`