diff options
| -rw-r--r-- | clang/include/clang/Basic/BuiltinsAArch64.def | 1 | ||||
| -rw-r--r-- | clang/include/clang/Basic/BuiltinsARM.def | 1 | ||||
| -rw-r--r-- | clang/lib/CodeGen/CGBuiltin.cpp | 6 | ||||
| -rw-r--r-- | clang/test/CodeGen/builtins-arm.c | 6 | ||||
| -rw-r--r-- | clang/test/CodeGen/builtins-arm64.c | 1 |
5 files changed, 15 insertions, 0 deletions
diff --git a/clang/include/clang/Basic/BuiltinsAArch64.def b/clang/include/clang/Basic/BuiltinsAArch64.def index 8c6daa9146f..76dddadb800 100644 --- a/clang/include/clang/Basic/BuiltinsAArch64.def +++ b/clang/include/clang/Basic/BuiltinsAArch64.def @@ -28,6 +28,7 @@ BUILTIN(__builtin_arm_rbit, "UiUi", "nc") BUILTIN(__builtin_arm_rbit64, "LUiLUi", "nc") // HINT +BUILTIN(__builtin_arm_nop, "v", "") BUILTIN(__builtin_arm_yield, "v", "") BUILTIN(__builtin_arm_wfe, "v", "") BUILTIN(__builtin_arm_wfi, "v", "") diff --git a/clang/include/clang/Basic/BuiltinsARM.def b/clang/include/clang/Basic/BuiltinsARM.def index d1cf9a76fb1..2e5eac694fc 100644 --- a/clang/include/clang/Basic/BuiltinsARM.def +++ b/clang/include/clang/Basic/BuiltinsARM.def @@ -68,6 +68,7 @@ BUILTIN(__builtin_arm_crc32d, "UiUiLLUi", "nc") BUILTIN(__builtin_arm_crc32cd, "UiUiLLUi", "nc") // HINT +BUILTIN(__builtin_arm_nop, "v", "") BUILTIN(__builtin_arm_yield, "v", "") BUILTIN(__builtin_arm_wfe, "v", "") BUILTIN(__builtin_arm_wfi, "v", "") diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp index 4fd98bc1fd1..0f1a146c051 100644 --- a/clang/lib/CodeGen/CGBuiltin.cpp +++ b/clang/lib/CodeGen/CGBuiltin.cpp @@ -3040,6 +3040,9 @@ Value *CodeGenFunction::EmitARMBuiltinExpr(unsigned BuiltinID, unsigned HintID = static_cast<unsigned>(-1); switch (BuiltinID) { default: break; + case ARM::BI__builtin_arm_nop: + HintID = 0; + break; case ARM::BI__builtin_arm_yield: case ARM::BI__yield: HintID = 1; @@ -3804,6 +3807,9 @@ Value *CodeGenFunction::EmitAArch64BuiltinExpr(unsigned BuiltinID, unsigned HintID = static_cast<unsigned>(-1); switch (BuiltinID) { default: break; + case AArch64::BI__builtin_arm_nop: + HintID = 0; + break; case AArch64::BI__builtin_arm_yield: HintID = 1; break; diff --git a/clang/test/CodeGen/builtins-arm.c b/clang/test/CodeGen/builtins-arm.c index e55183c7f6a..a51df15ce56 100644 --- a/clang/test/CodeGen/builtins-arm.c +++ b/clang/test/CodeGen/builtins-arm.c @@ -19,6 +19,12 @@ void test_eh_return_data_regno() res = __builtin_eh_return_data_regno(1); // CHECK: store volatile i32 1 } +void nop() { + __builtin_arm_nop(); +} + +// CHECK: call {{.*}} @llvm.arm.hint(i32 0) + void yield() { __builtin_arm_yield(); } diff --git a/clang/test/CodeGen/builtins-arm64.c b/clang/test/CodeGen/builtins-arm64.c index 8e15b846aa3..8614be0592b 100644 --- a/clang/test/CodeGen/builtins-arm64.c +++ b/clang/test/CodeGen/builtins-arm64.c @@ -16,6 +16,7 @@ unsigned long long rbit64(unsigned long long a) { } void hints() { + __builtin_arm_nop(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 0) __builtin_arm_yield(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 1) __builtin_arm_wfe(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 2) __builtin_arm_wfi(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 3) |
