Provide, and document, a set of __c11_atomic_* intrinsics to implement C11's

<stdatomic.h> header.

In passing, fix LanguageExtensions to note that C11 and C++11 are no longer
"upcoming standards" but are now actually standardized.

llvm-svn: 154513

1 files changed, 18 insertions, 18 deletions

diff --git a/clang/test/CodeGen/atomic-ops.c b/clang/test/CodeGen/atomic-ops.c
index 2285cca7235..c94f14023ea 100644
--- a/clang/test/CodeGen/atomic-ops.c
+++ b/clang/test/CodeGen/atomic-ops.c
@@ -7,9 +7,9 @@
 #ifndef ALREADY_INCLUDED
 #define ALREADY_INCLUDED
 
-// Basic IRGen tests for __atomic_*
+// Basic IRGen tests for __c11_atomic_*
 
-// FIXME: Need to implement __atomic_is_lock_free
+// FIXME: Need to implement __c11_atomic_is_lock_free
 
 typedef enum memory_order {
   memory_order_relaxed, memory_order_consume, memory_order_acquire,
@@ -19,74 +19,74 @@ typedef enum memory_order {
 int fi1(_Atomic(int) *i) {
   // CHECK: @fi1
   // CHECK: load atomic i32* {{.*}} seq_cst
-  return __atomic_load(i, memory_order_seq_cst);
+  return __c11_atomic_load(i, memory_order_seq_cst);
 }
 
 void fi2(_Atomic(int) *i) {
   // CHECK: @fi2
   // CHECK: store atomic i32 {{.*}} seq_cst
-  __atomic_store(i, 1, memory_order_seq_cst);
+  __c11_atomic_store(i, 1, memory_order_seq_cst);
 }
 
 void fi3(_Atomic(int) *i) {
   // CHECK: @fi3
   // CHECK: atomicrmw and
-  __atomic_fetch_and(i, 1, memory_order_seq_cst);
+  __c11_atomic_fetch_and(i, 1, memory_order_seq_cst);
 }
 
 void fi4(_Atomic(int) *i) {
   // CHECK: @fi4
   // CHECK: cmpxchg i32*
   int cmp = 0;
-  __atomic_compare_exchange_strong(i, &cmp, 1, memory_order_acquire, memory_order_acquire);
+  __c11_atomic_compare_exchange_strong(i, &cmp, 1, memory_order_acquire, memory_order_acquire);
 }
 
 float ff1(_Atomic(float) *d) {
   // CHECK: @ff1
   // CHECK: load atomic i32* {{.*}} monotonic
-  return __atomic_load(d, memory_order_relaxed);
+  return __c11_atomic_load(d, memory_order_relaxed);
 }
 
 void ff2(_Atomic(float) *d) {
   // CHECK: @ff2
   // CHECK: store atomic i32 {{.*}} release
-  __atomic_store(d, 1, memory_order_release);
+  __c11_atomic_store(d, 1, memory_order_release);
 }
 
 float ff3(_Atomic(float) *d) {
-  return __atomic_exchange(d, 2, memory_order_seq_cst);
+  return __c11_atomic_exchange(d, 2, memory_order_seq_cst);
 }
 
 int* fp1(_Atomic(int*) *p) {
   // CHECK: @fp1
   // CHECK: load atomic i32* {{.*}} seq_cst
-  return __atomic_load(p, memory_order_seq_cst);
+  return __c11_atomic_load(p, memory_order_seq_cst);
 }
 
 int* fp2(_Atomic(int*) *p) {
   // CHECK: @fp2
   // CHECK: store i32 4
   // CHECK: atomicrmw add {{.*}} monotonic
-  return __atomic_fetch_add(p, 1, memory_order_relaxed);
+  return __c11_atomic_fetch_add(p, 1, memory_order_relaxed);
 }
 
 _Complex float fc(_Atomic(_Complex float) *c) {
   // CHECK: @fc
   // CHECK: atomicrmw xchg i64*
-  return __atomic_exchange(c, 2, memory_order_seq_cst);
+  return __c11_atomic_exchange(c, 2, memory_order_seq_cst);
 }
 
 typedef struct X { int x; } X;
 X fs(_Atomic(X) *c) {
   // CHECK: @fs
   // CHECK: atomicrmw xchg i32*
-  return __atomic_exchange(c, (X){2}, memory_order_seq_cst);
+  return __c11_atomic_exchange(c, (X){2}, memory_order_seq_cst);
 }
 
 int lock_free() {
   // CHECK: @lock_free
   // CHECK: ret i32 1
-  return __atomic_is_lock_free(sizeof(_Atomic(int)));
+  return __c11_atomic_is_lock_free(sizeof(_Atomic(int)));
 }
 
 // Tests for atomic operations on big values.  These should call the functions
@@ -102,18 +102,18 @@ _Atomic(struct foo) bigAtomic;
 void structAtomicStore() {
   // CHECK: @structAtomicStore
   struct foo f = {0};
-  __atomic_store(&bigAtomic, f, 5);
+  __c11_atomic_store(&bigAtomic, f, 5);
   // CHECK: call void @__atomic_store(i32 512, i8* bitcast (%struct.foo* @bigAtomic to i8*), 
 }
 void structAtomicLoad() {
   // CHECK: @structAtomicLoad
-  struct foo f = __atomic_load(&bigAtomic, 5);
+  struct foo f = __c11_atomic_load(&bigAtomic, 5);
   // CHECK: call void @__atomic_load(i32 512, i8* bitcast (%struct.foo* @bigAtomic to i8*), 
 }
 struct foo structAtomicExchange() {
   // CHECK: @structAtomicExchange
   struct foo f = {0};
-  return __atomic_exchange(&bigAtomic, f, 5);
+  return __c11_atomic_exchange(&bigAtomic, f, 5);
   // CHECK: call void @__atomic_exchange(i32 512, i8* bitcast (%struct.foo* @bigAtomic to i8*), 
 }
 int structAtomicCmpExchange() {
@@ -121,7 +121,7 @@ int structAtomicCmpExchange() {
   struct foo f = {0};
   struct foo g = {0};
   g.big[12] = 12;
-  return __atomic_compare_exchange_strong(&bigAtomic, &f, g, 5, 5);
+  return __c11_atomic_compare_exchange_strong(&bigAtomic, &f, g, 5, 5);
   // CHECK: call zeroext i1 @__atomic_compare_exchange(i32 512, i8* bitcast (%struct.foo* @bigAtomic to i8*), 
 }