MIPS: [turbofan] Optimize Float32 to Int32 rep. changes with Float32 round ops.

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

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/ast/scopes.h"
 #include "src/compiler/code-generator.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/osr.h"
@@ skipping 926 matching lines @@
     case kMipsCvtDS: {
       __ cvt_d_s(i.OutputDoubleRegister(), i.InputSingleRegister(0));
       break;
     }
     case kMipsCvtDW: {
       FPURegister scratch = kScratchDoubleReg;
       __ mtc1(i.InputRegister(0), scratch);
       __ cvt_d_w(i.OutputDoubleRegister(), scratch);
       break;
     }
+    case kMipsCvtSW: {
+      FPURegister scratch = kScratchDoubleReg;
+      __ mtc1(i.InputRegister(0), scratch);
+      __ cvt_s_w(i.OutputDoubleRegister(), scratch);
+      break;
+    }
     case kMipsCvtDUw: {
       FPURegister scratch = kScratchDoubleReg;
       __ Cvt_d_uw(i.OutputDoubleRegister(), i.InputRegister(0), scratch);
       break;
     }
     case kMipsFloorWD: {
       FPURegister scratch = kScratchDoubleReg;
       __ floor_w_d(scratch, i.InputDoubleRegister(0));
       __ mfc1(i.OutputRegister(), scratch);
       break;
@@ skipping 10 matching lines @@
       __ mfc1(i.OutputRegister(), scratch);
       break;
     }
     case kMipsTruncWD: {
       FPURegister scratch = kScratchDoubleReg;
       // Other arches use round to zero here, so we follow.
       __ trunc_w_d(scratch, i.InputDoubleRegister(0));
       __ mfc1(i.OutputRegister(), scratch);
       break;
     }
+    case kMipsFloorWS: {
+      FPURegister scratch = kScratchDoubleReg;
+      __ floor_w_s(scratch, i.InputDoubleRegister(0));
+      __ mfc1(i.OutputRegister(), scratch);
+      break;
+    }
+    case kMipsCeilWS: {
+      FPURegister scratch = kScratchDoubleReg;
+      __ ceil_w_s(scratch, i.InputDoubleRegister(0));
+      __ mfc1(i.OutputRegister(), scratch);
+      break;
+    }
+    case kMipsRoundWS: {
+      FPURegister scratch = kScratchDoubleReg;
+      __ round_w_s(scratch, i.InputDoubleRegister(0));
+      __ mfc1(i.OutputRegister(), scratch);
+      break;
+    }
+    case kMipsTruncWS: {
+      FPURegister scratch = kScratchDoubleReg;
+      __ trunc_w_s(scratch, i.InputDoubleRegister(0));
+      __ mfc1(i.OutputRegister(), scratch);
+      break;
+    }
     case kMipsTruncUwD: {
       FPURegister scratch = kScratchDoubleReg;
       // TODO(plind): Fix wrong param order of Trunc_uw_d() macro-asm function.
       __ Trunc_uw_d(i.InputDoubleRegister(0), i.OutputRegister(), scratch);
       break;
     }
     case kMipsFloat64ExtractLowWord32:
       __ FmoveLow(i.OutputRegister(), i.InputDoubleRegister(0));
       break;
     case kMipsFloat64ExtractHighWord32:
@@ skipping 728 matching lines @@
       padding_size -= v8::internal::Assembler::kInstrSize;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8