[turbofan] Add backend support for float32 operations.

src/arm/macro-assembler-arm.cc

Index: src/arm/macro-assembler-arm.cc
diff --git a/src/arm/macro-assembler-arm.cc b/src/arm/macro-assembler-arm.cc
index b3cacc8cef0460e76c9ce01dcc2b4512ea184fe9..addddd71cb356962ab4db886ab28f71a72c5bad2 100644
--- a/src/arm/macro-assembler-arm.cc
+++ b/src/arm/macro-assembler-arm.cc
@@ -861,6 +861,21 @@ void MacroAssembler::VFPCanonicalizeNaN(const DwVfpRegister dst,
 }
 
 
+void MacroAssembler::VFPCompareAndSetFlags(const SwVfpRegister src1,
+                                           const SwVfpRegister src2,
+                                           const Condition cond) {
+  // Compare and move FPSCR flags to the normal condition flags.
+  VFPCompareAndLoadFlags(src1, src2, pc, cond);
+}
+
+void MacroAssembler::VFPCompareAndSetFlags(const SwVfpRegister src1,
+                                           const float src2,
+                                           const Condition cond) {
+  // Compare and move FPSCR flags to the normal condition flags.
+  VFPCompareAndLoadFlags(src1, src2, pc, cond);
+}
+
+
 void MacroAssembler::VFPCompareAndSetFlags(const DwVfpRegister src1,
                                            const DwVfpRegister src2,
                                            const Condition cond) {
@@ -876,6 +891,25 @@ void MacroAssembler::VFPCompareAndSetFlags(const DwVfpRegister src1,
 }
 
 
+void MacroAssembler::VFPCompareAndLoadFlags(const SwVfpRegister src1,
+                                            const SwVfpRegister src2,
+                                            const Register fpscr_flags,
+                                            const Condition cond) {
+  // Compare and load FPSCR.
+  vcmp(src1, src2, cond);
+  vmrs(fpscr_flags, cond);
+}
+
+void MacroAssembler::VFPCompareAndLoadFlags(const SwVfpRegister src1,
+                                            const float src2,
+                                            const Register fpscr_flags,
+                                            const Condition cond) {
+  // Compare and load FPSCR.
+  vcmp(src1, src2, cond);
+  vmrs(fpscr_flags, cond);
+}
+
+
 void MacroAssembler::VFPCompareAndLoadFlags(const DwVfpRegister src1,
                                             const DwVfpRegister src2,
                                             const Register fpscr_flags,
@@ -894,6 +928,7 @@ void MacroAssembler::VFPCompareAndLoadFlags(const DwVfpRegister src1,
   vmrs(fpscr_flags, cond);
 }
 
+
 void MacroAssembler::Vmov(const DwVfpRegister dst,
                           const double imm,
                           const Register scratch) {