diff options
Diffstat (limited to 'clang/test/CodeGenCXX/builtins-arm-exclusive.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/builtins-arm-exclusive.cpp | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/builtins-arm-exclusive.cpp b/clang/test/CodeGenCXX/builtins-arm-exclusive.cpp index d30631f..ca27193 100644 --- a/clang/test/CodeGenCXX/builtins-arm-exclusive.cpp +++ b/clang/test/CodeGenCXX/builtins-arm-exclusive.cpp @@ -22,3 +22,35 @@ void test_ldrex() { void tset_strex() { __builtin_arm_strex(true, &b); } + +#ifdef __arm__ +// ARM exclusive atomic builtins + +long long c; + +// CHECK-LABEL: @_Z11test_ldrexdv() +// CHECK: [[STRUCTRES:%.*]] = call { i32, i32 } @llvm.arm.ldrexd(ptr @c) +// CHECK: [[RESHI:%.*]] = extractvalue { i32, i32 } [[STRUCTRES]], 1 +// CHECK: [[RESLO:%.*]] = extractvalue { i32, i32 } [[STRUCTRES]], 0 +// CHECK: [[RESHI64:%.*]] = zext i32 [[RESHI]] to i64 +// CHECK: [[RESLO64:%.*]] = zext i32 [[RESLO]] to i64 +// CHECK: [[RESHIHI:%.*]] = shl nuw i64 [[RESHI64]], 32 +// CHECK: [[INTRES:%.*]] = or i64 [[RESHIHI]], [[RESLO64]] +// CHECK: store i64 [[INTRES]], ptr @c, align 8 + +void test_ldrexd() { + c = __builtin_arm_ldrexd(&c); +} + +// CHECK-LABEL: @_Z11tset_strexdv() +// CHECK: store i64 42, ptr [[TMP:%.*]], align 8 +// CHECK: [[LOHI:%.*]] = load { i32, i32 }, ptr [[TMP]] +// CHECK: [[LO:%.*]] = extractvalue { i32, i32 } [[LOHI]], 0 +// CHECK: [[HI:%.*]] = extractvalue { i32, i32 } [[LOHI]], 1 +// CHECK: %{{.*}} = call i32 @llvm.arm.strexd(i32 [[LO]], i32 [[HI]], ptr @c) + +void tset_strexd() { + __builtin_arm_strexd(42, &c); +} + +#endif |