__atomic_load_n

goplus · Apr 12, 2022 · 0c1e70e · 0c1e70e
1 parent 37bc26b
commit 0c1e70e
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Showing 3 changed files with 13 additions and 2 deletions.
diff --git a/cl/codebuild.go b/cl/codebuild.go
@@ -27,7 +27,9 @@ const builtin_decls = `{
  "__builtin___memcpy_chk": "void* (void*, void*, uint, uint)",
  "__builtin_object_size": "uint (void*, int32)",
  "__atomic_store_n_i32": "void (int32*, int, int32)",
- "__atomic_store_n_i64": "void (int64*, int, int64)"
+ "__atomic_store_n_i64": "void (int64*, int, int64)",
+ "__atomic_load_n_i32": "int32 (int32*, int)",
+ "__atomic_load_n_i64": "int64 (int64*, int)"
 }`
 
 type overloadFn struct {
@@ -38,6 +40,7 @@ type overloadFn struct {
 var (
  builtin_overloads = []overloadFn{
  {name: "__atomic_store_n", overloads: []string{"__atomic_store_n_i32", "__atomic_store_n_i64"}},
+ {name: "__atomic_load_n", overloads: []string{"__atomic_load_n_i32", "__atomic_load_n_i64"}},
  }
 )
 

diff --git a/testdata/atomic/atomic.c b/testdata/atomic/atomic.c
@@ -6,6 +6,6 @@ int main() {
  __atomic_store_n(&a, 100, 0);
  printf("atomic: %lld\n", a);
  __atomic_store_n(&b, a!=0, 0);
- printf("atomic: %d\n", b);
+ printf("atomic: %d\n", __atomic_load_n(&b, 0));
  return 0;
 }
diff --git a/testdata/atomic/libc.go b/testdata/atomic/libc.go
@@ -33,6 +33,14 @@ func __atomic_store_n_i64(p *int64, memorder int32, v int64) {
  *p = v
 }
 
+func __atomic_load_n_i32(p *int32, memorder int32) int32 {
+ return *p
+}
+
+func __atomic_load_n_i64(p *int64, memorder int32) int64 {
+ return *p
+}
+
 func __swbuf(_c int32, _p *FILE) int32 {
  return _c
 }