diff --git a/src/cmd/compile/internal/escape/graph.go b/src/cmd/compile/internal/escape/graph.go
index d3ae1da693..cc3d078add 100644
--- a/src/cmd/compile/internal/escape/graph.go
+++ b/src/cmd/compile/internal/escape/graph.go
@@ -117,7 +117,7 @@ func (l *location) isName(c ir.Class) bool {
 	return l.n != nil && l.n.Op() == ir.ONAME && l.n.(*ir.Name).Class == c
 }
 
-// An hole represents a context for evaluation a Go
+// A hole represents a context for evaluation of a Go
 // expression. E.g., when evaluating p in "x = **p", we'd have a hole
 // with dst==x and derefs==2.
 type hole struct {
diff --git a/src/cmd/compile/internal/ir/expr.go b/src/cmd/compile/internal/ir/expr.go
index dc28483907..f526d987a7 100644
--- a/src/cmd/compile/internal/ir/expr.go
+++ b/src/cmd/compile/internal/ir/expr.go
@@ -275,7 +275,7 @@ func (n *ConvExpr) SetOp(op Op) {
 	}
 }
 
-// An IndexExpr is an index expression X[Y].
+// An IndexExpr is an index expression X[Index].
 type IndexExpr struct {
 	miniExpr
 	X        Node
diff --git a/src/cmd/compile/internal/ir/stmt.go b/src/cmd/compile/internal/ir/stmt.go
index 8115012f97..69a74b9fdd 100644
--- a/src/cmd/compile/internal/ir/stmt.go
+++ b/src/cmd/compile/internal/ir/stmt.go
@@ -244,7 +244,7 @@ func NewGoDeferStmt(pos src.XPos, op Op, call Node) *GoDeferStmt {
 	return n
 }
 
-// A IfStmt is a return statement: if Init; Cond { Then } else { Else }.
+// An IfStmt is a return statement: if Init; Cond { Body } else { Else }.
 type IfStmt struct {
 	miniStmt
 	Cond   Node