Clarify that FixedTied constraints are not Tied (bytecodealliance#756)

* Clarify that FixedTied constraints are not Tied
paritytech · May 2, 2019 · 5cd0724 · 5cd0724
1 parent 18a5386
commit 5cd0724
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/cranelift/codegen/src/isa/constraints.rs b/cranelift/codegen/src/isa/constraints.rs
@@ -105,13 +105,13 @@ pub struct RecipeConstraints {
     /// constraints must be derived from the calling convention ABI.
     pub outs: &'static [OperandConstraint],
 
-    /// Are any of the input constraints `FixedReg`?
+    /// Are any of the input constraints `FixedReg` or `FixedTied`?
     pub fixed_ins: bool,
 
-    /// Are any of the output constraints `FixedReg`?
+    /// Are any of the output constraints `FixedReg` or `FixedTied`?
     pub fixed_outs: bool,
 
-    /// Are there any tied operands?
+    /// Are any of the input/output constraints `Tied` (but not `FixedTied`)?
     pub tied_ops: bool,
 
     /// Does this instruction clobber the CPU flags?