Merge remote-tracking branch 'origin/stable' into 5.3

Change-Id: I09992d60034fccf74c5f754ab88bebe8b8de5e45

2 files changed, 17 insertions, 4 deletions

diff --git a/Source/JavaScriptCore/assembler/MIPSAssembler.h b/Source/JavaScriptCore/assembler/MIPSAssembler.h
index 5f7b9b21a..03ef23ba7 100644
--- a/Source/JavaScriptCore/assembler/MIPSAssembler.h
+++ b/Source/JavaScriptCore/assembler/MIPSAssembler.h
@@ -529,6 +529,11 @@ public:
         emitInst(0x46200004 | (fd << OP_SH_FD) | (fs << OP_SH_FS));
     }
 
+    void absd(FPRegisterID fd, FPRegisterID fs)
+    {
+        emitInst(0x46200005 | (fd << OP_SH_FD) | (fs << OP_SH_FS));
+    }
+
     void movd(FPRegisterID fd, FPRegisterID fs)
     {
         emitInst(0x46200006 | (fd << OP_SH_FD) | (fs << OP_SH_FS));
diff --git a/Source/JavaScriptCore/assembler/MacroAssemblerMIPS.h b/Source/JavaScriptCore/assembler/MacroAssemblerMIPS.h
index e13ae7b34..669021965 100644
--- a/Source/JavaScriptCore/assembler/MacroAssemblerMIPS.h
+++ b/Source/JavaScriptCore/assembler/MacroAssemblerMIPS.h
@@ -621,9 +621,9 @@ public:
         m_assembler.sqrtd(dst, src);
     }
     
-    void absDouble(FPRegisterID, FPRegisterID)
+    void absDouble(FPRegisterID src, FPRegisterID dst)
     {
-        RELEASE_ASSERT_NOT_REACHED();
+        m_assembler.absd(dst, src);
     }
 
     ConvertibleLoadLabel convertibleLoadPtr(Address address, RegisterID dest)
@@ -1188,7 +1188,15 @@ public:
         return false;
 #endif
     }
-    static bool supportsFloatingPointAbs() { return false; }
+
+    static bool supportsFloatingPointAbs()
+    {
+#if WTF_MIPS_DOUBLE_FLOAT
+        return true;
+#else
+        return false;
+#endif
+    }
 
     // Stack manipulation operations:
     //
@@ -2621,7 +2629,7 @@ public:
     {
         m_assembler.truncwd(fpTempRegister, src);
         m_assembler.mfc1(dest, fpTempRegister);
-        return branch32(branchType == BranchIfTruncateFailed ? Equal : NotEqual, dest, TrustedImm32(0));
+        return branch32(branchType == BranchIfTruncateFailed ? Equal : NotEqual, dest, TrustedImm32(0x7fffffff));
     }
 
     // Result is undefined if the value is outside of the integer range.