Bug 1417595 - [MIPS] Implement missing parts of Bug 1417398. r=jandem

--HG--
extra : rebase_source : e8ef79983ac2264c598ad8401a2effee58d497cb

js/src/jit/Ion.cpp

@@ -59,6 +59,7 @@
 
 #include "gc/Iteration-inl.h"
 #include "jit/JitFrames-inl.h"
+#include "jit/MacroAssembler-inl.h"
 #include "jit/shared/Lowering-shared-inl.h"
 #include "vm/Debugger-inl.h"
 #include "vm/EnvironmentObject-inl.h"
@@ -228,6 +229,7 @@ JitRuntime::startTrampolineCode(MacroAssembler& masm)
     masm.assumeUnreachable("Shouldn't get here");
     masm.flushBuffer();
     masm.haltingAlign(CodeAlignment);
+    masm.setFramePushed(0);
     return masm.currentOffset();
 }
 

js/src/jit/mips32/MacroAssembler-mips32.h

@@ -310,6 +310,14 @@ class MacroAssemblerMIPSCompat : public MacroAssemblerMIPS
         ma_b(target);
     }
 
+    void jump(TrampolinePtr code)
+    {
+        auto target = ImmPtr(code.value);
+        BufferOffset bo = m_buffer.nextOffset();
+        addPendingJump(bo, target, Relocation::HARDCODED);
+        ma_jump(target);
+    }
+
     void negl(Register reg) {
         ma_negu(reg, reg);
     }

js/src/jit/mips64/MacroAssembler-mips64.h

@@ -339,6 +339,14 @@ class MacroAssemblerMIPS64Compat : public MacroAssemblerMIPS64
         ma_b(target);
     }
 
+    void jump(TrampolinePtr code)
+    {
+        auto target = ImmPtr(code.value);
+        BufferOffset bo = m_buffer.nextOffset();
+        addPendingJump(bo, target, Relocation::HARDCODED);
+        ma_jump(target);
+    }
+
     void splitTag(Register src, Register dest) {
         ma_dsrl(dest, src, Imm32(JSVAL_TAG_SHIFT));
     }