MIPS: Add floor, ceil, round (truncate) instructions for ia32, x64 (if SSE4.1) and add floor, ceil,…

src/compiler/mips/code-generator-mips.cc

Index: src/compiler/mips/code-generator-mips.cc
diff --git a/src/compiler/mips/code-generator-mips.cc b/src/compiler/mips/code-generator-mips.cc
index 9a8b98a6355409f5eb72e27cdc2aee6f4b59772c..31b089f81b83accd9c8c8f0ae6995208aad06489 100644
--- a/src/compiler/mips/code-generator-mips.cc
+++ b/src/compiler/mips/code-generator-mips.cc
@@ -291,6 +291,18 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
       __ sqrt_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
       break;
     }
+    case kMipsFloorD: {
+      __ floor_l_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
+      break;
+    }
+    case kMipsCeilD: {
+      __ ceil_l_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
+      break;
+    }
+    case kMipsRoundTruncateD: {
+      __ round_l_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
+      break;
+    }
     case kMipsCvtSD: {
       __ cvt_s_d(i.OutputSingleRegister(), i.InputDoubleRegister(0));
       break;