Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 71 insertions, 0 deletions

diff --git a/js/src/jit/mips32/Bailouts-mips32.h b/js/src/jit/mips32/Bailouts-mips32.h
new file mode 100644
index 0000000000..5d9d60a482
--- /dev/null
+++ b/js/src/jit/mips32/Bailouts-mips32.h
@@ -0,0 +1,71 @@
+/* -*- 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_mips32_Bailouts_mips32_h
+#define jit_mips32_Bailouts_mips32_h
+
+#include "jit/Bailouts.h"
+
+namespace js {
+namespace jit {
+
+class BailoutStack {
+  uintptr_t frameClassId_;
+  // This is pushed in the bailout handler. Both entry points into the
+  // handler inserts their own value int lr, which is then placed onto the
+  // stack along with frameClassId_ above. This should be migrated to ip.
+ public:
+  union {
+    uintptr_t frameSize_;
+    uintptr_t tableOffset_;
+  };
+
+ protected:
+  RegisterDump::FPUArray fpregs_;
+  RegisterDump::GPRArray regs_;
+
+  uintptr_t snapshotOffset_;
+  uintptr_t padding_;
+
+ public:
+  FrameSizeClass frameClass() const {
+    return FrameSizeClass::FromClass(frameClassId_);
+  }
+  uintptr_t tableOffset() const {
+    MOZ_ASSERT(frameClass() != FrameSizeClass::None());
+    return tableOffset_;
+  }
+  uint32_t frameSize() const {
+    if (frameClass() == FrameSizeClass::None()) {
+      return frameSize_;
+    }
+    return frameClass().frameSize();
+  }
+  MachineState machine() { return MachineState::FromBailout(regs_, fpregs_); }
+  SnapshotOffset snapshotOffset() const {
+    MOZ_ASSERT(frameClass() == FrameSizeClass::None());
+    return snapshotOffset_;
+  }
+  uint8_t* parentStackPointer() const {
+    if (frameClass() == FrameSizeClass::None()) {
+      return (uint8_t*)this + sizeof(BailoutStack);
+    }
+    return (uint8_t*)this + offsetof(BailoutStack, snapshotOffset_);
+  }
+  static size_t offsetOfFrameClass() {
+    return offsetof(BailoutStack, frameClassId_);
+  }
+  static size_t offsetOfFrameSize() {
+    return offsetof(BailoutStack, frameSize_);
+  }
+  static size_t offsetOfFpRegs() { return offsetof(BailoutStack, fpregs_); }
+  static size_t offsetOfRegs() { return offsetof(BailoutStack, regs_); }
+};
+
+}  // namespace jit
+}  // namespace js
+
+#endif /* jit_mips32_Bailouts_mips32_h */