Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/js/src/jit/IonGenericCallStub.h b/js/src/jit/IonGenericCallStub.h
new file mode 100644
index 0000000000..aa53c307df
--- /dev/null
+++ b/js/src/jit/IonGenericCallStub.h
@@ -0,0 +1,33 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef jit_IonGenericCallStub_h
+#define jit_IonGenericCallStub_h
+
+#include "jit/Registers.h"
+
+namespace js::jit {
+
+#ifndef JS_USE_LINK_REGISTER
+static constexpr Register IonGenericCallReturnAddrReg = CallTempReg0;
+#endif
+
+static constexpr Register IonGenericCallCalleeReg = CallTempReg1;
+static constexpr Register IonGenericCallArgcReg = CallTempReg2;
+static constexpr Register IonGenericCallScratch = CallTempReg3;
+static constexpr Register IonGenericCallScratch2 = CallTempReg4;
+static constexpr Register IonGenericCallScratch3 = CallTempReg5;
+
+#ifdef JS_CODEGEN_ARM
+// We need a second scratch register that does not alias `lr` or
+// any of the registers the ABI uses to pass arguments.
+static_assert(CallTempReg0 == CallTempNonArgRegs[0]);
+static constexpr Register IonGenericSecondScratchReg = CallTempReg0;
+#endif
+
+}  // namespace js::jit
+
+#endif /* jit_IonGenericCallStub_h */