VM: Fix FP math discrepancies by adding -mfpmath=sse to 32-bit simulator and cross host builds.

tools/gyp/configurations_make.gypi

Index: tools/gyp/configurations_make.gypi
diff --git a/tools/gyp/configurations_make.gypi b/tools/gyp/configurations_make.gypi
index 9f8b0e29bfa1c146b27c1f06049ad3537e72a124..683ca5148d8cc69291c20a6a9e4b7a8bb4635bc8 100644
--- a/tools/gyp/configurations_make.gypi
+++ b/tools/gyp/configurations_make.gypi
@@ -71,19 +71,19 @@
 
       'Dart_Linux_simarm_Base': {
         'abstract': 1,
-        'cflags': [ '-O3', '-m32', '-msse2' ],
+        'cflags': [ '-O3', '-m32', '-msse2', '-mfpmath=sse' ],
         'ldflags': [ '-m32', ],
       },
 
       'Dart_Linux_simarmv5te_Base': {
         'abstract': 1,
-        'cflags': [ '-O3', '-m32', '-msse2' ],
+        'cflags': [ '-O3', '-m32', '-msse2', '-mfpmath=sse' ],
         'ldflags': [ '-m32', ],
       },
 
       'Dart_Linux_simarm64_Base': {
         'abstract': 1,
-        'cflags': [ '-O3', '-m64', '-msse2' ],
+        'cflags': [ '-O3', '-m64', '-msse2', '-mfpmath=sse' ],
         'ldflags': [ '-m64', ],
       },
 
@@ -100,7 +100,7 @@
           ],
         }],
         ['_toolset=="host"', {
-          'cflags': ['-m32', '-msse2'],
+          'cflags': ['-m32', '-msse2', '-mfpmath=sse' ],
           'ldflags': ['-m32'],
         }]]
       },
@@ -131,7 +131,7 @@
           ],
         }],
         ['_toolset=="host"', {
-          'cflags': ['-m32', '-msse2'],
+          'cflags': ['-m32', '-msse2', '-mfpmath=sse' ],
           'ldflags': ['-m32'],
         }]]
       },
@@ -170,7 +170,7 @@
 
       'Dart_Linux_simmips_Base': {
         'abstract': 1,
-        'cflags': [ '-O3', '-m32', '-msse2' ],
+        'cflags': [ '-O3', '-m32', '-msse2', '-mfpmath=sse' ],
         'ldflags': [ '-m32', ],
       },
 
@@ -190,7 +190,7 @@
             ],
           }],
           ['_toolset=="host"',{
-            'cflags': [ '-O3', '-m32', '-msse2' ],
+            'cflags': [ '-O3', '-m32', '-msse2', '-mfpmath=sse' ],
             'ldflags': [ '-m32' ],
         }]]
       },