Fix builds for finicky compilers.

runtime/vm/intermediate_language_ia32.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_IA32.
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/intermediate_language.h"
 
 #include "vm/dart_entry.h"
@@ skipping 4791 matching lines @@
     __ j(PARITY_ODD, &do_call, Assembler::kNearJump);
     // Return NaN.
     __ Bind(&return_nan);
     __ LoadObject(temp, Double::ZoneHandle(Double::NewCanonical(NAN)));
     __ movsd(result, FieldAddress(temp, Double::value_offset()));
     __ jmp(&skip_call);
 
     Label do_pow, return_zero;
     __ Bind(&do_call);
     // Before calling check if we could use sqrt instead of pow.
-    __ LoadObject(temp, Double::ZoneHandle(Double::NewCanonical(-1.0/0.0)));
+    __ LoadObject(temp, Double::ZoneHandle(Double::NewCanonical(-INFINITY)));
     __ movsd(result, FieldAddress(temp, Double::value_offset()));
     // base == -Infinity -> call pow;
     __ comisd(base, result);
     __ j(EQUAL, &do_pow, Assembler::kNearJump);
 
     // exponent == 0.5 ?
     __ LoadObject(temp, Double::ZoneHandle(Double::NewCanonical(0.5)));
     __ movsd(result, FieldAddress(temp, Double::value_offset()));
     __ comisd(exp, result);
     __ j(NOT_EQUAL, &do_pow, Assembler::kNearJump);
@@ skipping 1016 matching lines @@
                          PcDescriptors::kOther,
                          locs());
   __ Drop(ArgumentCount());  // Discard arguments.
 }
 
 }  // namespace dart
 
 #undef __
 
 #endif  // defined TARGET_ARCH_IA32