icode: discard unused pure ICode expressions

[nit.git] / src / icode / icode_builder.nit

diff --git a/src/icode/icode_builder.nit b/src/icode/icode_builder.nit
index dbb26bd..88c3796 100644 (file)
--- a/src/icode/icode_builder.nit
+++ b/src/icode/icode_builder.nit
@@ -169,6 +169,7 @@ class ICodeBuilder
        fun lit_true_reg: IRegister
        do
                var e = new INative("TAG_Bool(true)", null)
+               e.is_pure = true
                return expr(e, module.type_bool)
        end
 
@@ -176,6 +177,7 @@ class ICodeBuilder
        fun lit_false_reg: IRegister
        do
                var e = new INative("TAG_Bool(false)", null)
+               e.is_pure = true
                return expr(e, module.type_bool)
        end