diff options
Diffstat (limited to 'Xamarin.Forms.Build.Tasks')
| -rw-r--r-- | Xamarin.Forms.Build.Tasks/MethodBodyExtensions.cs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Xamarin.Forms.Build.Tasks/MethodBodyExtensions.cs b/Xamarin.Forms.Build.Tasks/MethodBodyExtensions.cs index f5bdc859..380cb59c 100644 --- a/Xamarin.Forms.Build.Tasks/MethodBodyExtensions.cs +++ b/Xamarin.Forms.Build.Tasks/MethodBodyExtensions.cs @@ -12,6 +12,7 @@ namespace Xamarin.Forms.Build.Tasks throw new ArgumentNullException(nameof(self)); self.OptimizeLongs(); + self.OptimizeStLdLoc(); self.OptimizeMacros(); } @@ -36,5 +37,24 @@ namespace Xamarin.Forms.Build.Tasks self.Instructions.Insert(++i, Instruction.Create(OpCodes.Conv_I8)); } } + + static void OptimizeStLdLoc(this MethodBody self) + { + var method = self.Method; + for (var i = 0; i < self.Instructions.Count; i++) { + var instruction = self.Instructions[i]; + if (instruction.OpCode.Code != Code.Stloc) + continue; + if (i + 1 >= self.Instructions.Count) + continue; + var next = self.Instructions[i + 1]; + int num = ((VariableDefinition)instruction.Operand).Index; + var vardef = instruction.Operand; + if (next.OpCode.Code != Code.Ldloc || num != ((VariableDefinition)next.Operand).Index) + continue; + ExpandMacro(instruction, OpCodes.Dup, null); + ExpandMacro(next, OpCodes.Stloc, vardef); + } + } } }
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