For arm, chooses hard vs. soft fp ABI based on compiler.

runtime/vm/intermediate_language_arm.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_ARM.
 #if defined(TARGET_ARCH_ARM)
 
 #include "vm/intermediate_language.h"
 
 #include "vm/cpu.h"
@@ skipping 4878 matching lines @@
 
 
 LocationSummary* MathUnaryInstr::MakeLocationSummary(bool opt) const {
   if ((kind() == MathUnaryInstr::kSin) || (kind() == MathUnaryInstr::kCos)) {
     const intptr_t kNumInputs = 1;
     const intptr_t kNumTemps = 0;
     LocationSummary* summary =
         new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kCall);
     summary->set_in(0, Location::FpuRegisterLocation(Q0));
     summary->set_out(0, Location::FpuRegisterLocation(Q0));
-#if !defined(ARM_FLOAT_ABI_HARD)
-    summary->AddTemp(Location::RegisterLocation(R0));
-    summary->AddTemp(Location::RegisterLocation(R1));
-    summary->AddTemp(Location::RegisterLocation(R2));
-    summary->AddTemp(Location::RegisterLocation(R3));
-#endif
+    if (!TargetCPUFeatures::hardfp_supported()) {
+      summary->AddTemp(Location::RegisterLocation(R0));
+      summary->AddTemp(Location::RegisterLocation(R1));
+      summary->AddTemp(Location::RegisterLocation(R2));
+      summary->AddTemp(Location::RegisterLocation(R3));
+    }
     return summary;
   }
   ASSERT((kind() == MathUnaryInstr::kSqrt) ||
          (kind() == MathUnaryInstr::kDoubleSquare));
   const intptr_t kNumInputs = 1;
   const intptr_t kNumTemps = 0;
   LocationSummary* summary =
       new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall);
   summary->set_in(0, Location::RequiresFpuRegister());
   summary->set_out(0, Location::RequiresFpuRegister());
   return summary;
 }
 
 
 void MathUnaryInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   if (kind() == MathUnaryInstr::kSqrt) {
     DRegister val = EvenDRegisterOf(locs()->in(0).fpu_reg());
     DRegister result = EvenDRegisterOf(locs()->out(0).fpu_reg());
     __ vsqrtd(result, val);
   } else if (kind() == MathUnaryInstr::kDoubleSquare) {
     DRegister val = EvenDRegisterOf(locs()->in(0).fpu_reg());
     DRegister result = EvenDRegisterOf(locs()->out(0).fpu_reg());
     __ vmuld(result, val, val);
   } else {
     ASSERT((kind() == MathUnaryInstr::kSin) ||
            (kind() == MathUnaryInstr::kCos));
-#if defined(ARM_FLOAT_ABI_HARD)
-    __ CallRuntime(TargetFunction(), InputCount());
-#else
-    // If we aren't doing "hardfp", then we have to move the double arguments
-    // to the integer registers, and take the results from the integer
-    // registers.
-    __ vmovrrd(R0, R1, D0);
-    __ vmovrrd(R2, R3, D1);
-    __ CallRuntime(TargetFunction(), InputCount());
-    __ vmovdrr(D0, R0, R1);
-    __ vmovdrr(D1, R2, R3);
-#endif
+    if (TargetCPUFeatures::hardfp_supported()) {
+      __ CallRuntime(TargetFunction(), InputCount());
+      } else {
+      // If we aren't doing "hardfp", then we have to move the double arguments
+      // to the integer registers, and take the results from the integer
+      // registers.
+      __ vmovrrd(R0, R1, D0);
+      __ vmovrrd(R2, R3, D1);
+      __ CallRuntime(TargetFunction(), InputCount());
+      __ vmovdrr(D0, R0, R1);
+      __ vmovdrr(D1, R2, R3);
+    }
   }
 }
 
 
 LocationSummary* MathMinMaxInstr::MakeLocationSummary(bool opt) const {
   if (result_cid() == kDoubleCid) {
     const intptr_t kNumInputs = 2;
     const intptr_t kNumTemps = 1;
     LocationSummary* summary =
         new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall);
@@ skipping 284 matching lines @@
   const intptr_t kNumTemps = 0;
   LocationSummary* result =
       new LocationSummary(InputCount(), kNumTemps, LocationSummary::kCall);
   result->set_in(0, Location::FpuRegisterLocation(Q0));
   if (InputCount() == 2) {
     result->set_in(1, Location::FpuRegisterLocation(Q1));
   }
   if (recognized_kind() == MethodRecognizer::kMathDoublePow) {
     result->AddTemp(Location::RegisterLocation(R2));
   }
-#if !defined(ARM_FLOAT_ABI_HARD)
-  result->AddTemp(Location::RegisterLocation(R0));
-  result->AddTemp(Location::RegisterLocation(R1));
-  // Check if R2 is already added.
-  if (recognized_kind() != MethodRecognizer::kMathDoublePow) {
-    result->AddTemp(Location::RegisterLocation(R2));
+  if (!TargetCPUFeatures::hardfp_supported()) {
+    result->AddTemp(Location::RegisterLocation(R0));
+    result->AddTemp(Location::RegisterLocation(R1));
+    // Check if R2 is already added.
+    if (recognized_kind() != MethodRecognizer::kMathDoublePow) {
+      result->AddTemp(Location::RegisterLocation(R2));
+    }
+    result->AddTemp(Location::RegisterLocation(R3));
   }
-  result->AddTemp(Location::RegisterLocation(R3));
-#endif
   result->set_out(0, Location::FpuRegisterLocation(Q0));
   return result;
 }
 
 
 // Pseudo code:
 // if (exponent == 0.0) return 1.0;
 // // Speed up simple cases.
 // if (exponent == 1.0) return base;
 // if (exponent == 2.0) return base * base;
@@ skipping 101 matching lines @@
 
   __ Bind(&return_zero);
   __ LoadDImmediate(result, 0.0, temp);
   __ b(&skip_call);
 
   __ Bind(&do_pow);
   __ vmovd(base, saved_base);  // Restore base.
 
   // Args must be in D0 and D1, so move arg from Q1(== D3:D2) to D1.
   __ vmovd(D1, D2);
-#if defined(ARM_FLOAT_ABI_HARD)
-  __ CallRuntime(instr->TargetFunction(), kInputCount);
-#else
-  // If the ABI is not "hardfp", then we have to move the double arguments
-  // to the integer registers, and take the results from the integer
-  // registers.
-  __ vmovrrd(R0, R1, D0);
-  __ vmovrrd(R2, R3, D1);
-  __ CallRuntime(instr->TargetFunction(), kInputCount);
-  __ vmovdrr(D0, R0, R1);
-  __ vmovdrr(D1, R2, R3);
-#endif
+  if (TargetCPUFeatures::hardfp_supported()) {
+    __ CallRuntime(instr->TargetFunction(), kInputCount);
+  } else {
+    // If the ABI is not "hardfp", then we have to move the double arguments
+    // to the integer registers, and take the results from the integer
+    // registers.
+    __ vmovrrd(R0, R1, D0);
+    __ vmovrrd(R2, R3, D1);
+    __ CallRuntime(instr->TargetFunction(), kInputCount);
+    __ vmovdrr(D0, R0, R1);
+    __ vmovdrr(D1, R2, R3);
+  }
   __ Bind(&skip_call);
 }
 
 
 void InvokeMathCFunctionInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   if (recognized_kind() == MethodRecognizer::kMathDoublePow) {
     InvokeDoublePow(compiler, this);
     return;
   }
 
   if (InputCount() == 2) {
     // Args must be in D0 and D1, so move arg from Q1(== D3:D2) to D1.
     __ vmovd(D1, D2);
   }
-#if defined(ARM_FLOAT_ABI_HARD)
-  __ CallRuntime(TargetFunction(), InputCount());
-#else
-  // If the ABI is not "hardfp", then we have to move the double arguments
-  // to the integer registers, and take the results from the integer
-  // registers.
-  __ vmovrrd(R0, R1, D0);
-  __ vmovrrd(R2, R3, D1);
-  __ CallRuntime(TargetFunction(), InputCount());
-  __ vmovdrr(D0, R0, R1);
-  __ vmovdrr(D1, R2, R3);
-#endif
+  if (TargetCPUFeatures::hardfp_supported()) {
+    __ CallRuntime(TargetFunction(), InputCount());
+  } else {
+    // If the ABI is not "hardfp", then we have to move the double arguments
+    // to the integer registers, and take the results from the integer
+    // registers.
+    __ vmovrrd(R0, R1, D0);
+    __ vmovrrd(R2, R3, D1);
+    __ CallRuntime(TargetFunction(), InputCount());
+    __ vmovdrr(D0, R0, R1);
+    __ vmovdrr(D1, R2, R3);
+  }
 }
 
 
 LocationSummary* ExtractNthOutputInstr::MakeLocationSummary(bool opt) const {
   // Only use this instruction in optimized code.
   ASSERT(opt);
   const intptr_t kNumInputs = 1;
   LocationSummary* summary =
       new LocationSummary(kNumInputs, 0, LocationSummary::kNoCall);
   if (representation() == kUnboxedDouble) {
@@ skipping 863 matching lines @@
   compiler->GenerateCall(token_pos(),
                          &label,
                          PcDescriptors::kOther,
                          locs());
   __ Drop(ArgumentCount());  // Discard arguments.
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM