MIPS: [turbofan] Unify Math.floor / Math.ceil optimization.

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 6c299b0f227e515707061a3dc226a9dd19275f0d..b354b3d8c048f2856cd453f773c6693b2ecf7484 100644
--- a/src/compiler/mips/code-generator-mips.cc
+++ b/src/compiler/mips/code-generator-mips.cc
@@ -573,18 +573,18 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
       __ MovFromFloatResult(i.OutputDoubleRegister());
       break;
     }
-    case kMipsFloat64Floor: {
+    case kMipsFloat64RoundDown: {
       ASSEMBLE_ROUND_DOUBLE_TO_DOUBLE(floor_l_d, Floor);
       break;
     }
-    case kMipsFloat64Ceil: {
-      ASSEMBLE_ROUND_DOUBLE_TO_DOUBLE(ceil_l_d, Ceil);
-      break;
-    }
     case kMipsFloat64RoundTruncate: {
       ASSEMBLE_ROUND_DOUBLE_TO_DOUBLE(trunc_l_d, Truncate);
       break;
     }
+    case kMipsFloat64RoundUp: {
+      ASSEMBLE_ROUND_DOUBLE_TO_DOUBLE(ceil_l_d, Ceil);
+      break;
+    }
     case kMipsSqrtD: {
       __ sqrt_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
       break;