cmd/compile: sparse conditional constant propagation

[gostls13.git] / src / cmd / compile / internal / ssa / block.go

diff --git a/src/cmd/compile/internal/ssa/block.go b/src/cmd/compile/internal/ssa/block.go
index e7776b231643c6c2d222b99a6b936ae1b0612b66..6d391ab0110da2ded47595a1e201e453c53af167 100644 (file)
--- a/src/cmd/compile/internal/ssa/block.go
+++ b/src/cmd/compile/internal/ssa/block.go
@@ -112,13 +112,6 @@ func (e Edge) String() string {
 }
 
 // BlockKind is the kind of SSA block.
-//
-//       kind          controls        successors
-//     ------------------------------------------
-//       Exit      [return mem]                []
-//      Plain                []            [next]
-//         If   [boolean Value]      [then, else]
-//      Defer             [mem]  [nopanic, panic]  (control opcode should be OpStaticCall to runtime.deferproc)
 type BlockKind int16
 
 // short form print
@@ -275,8 +268,7 @@ func (b *Block) truncateValues(i int) {
        b.Values = b.Values[:i]
 }
 
-// AddEdgeTo adds an edge from block b to block c. Used during building of the
-// SSA graph; do not use on an already-completed SSA graph.
+// AddEdgeTo adds an edge from block b to block c.
 func (b *Block) AddEdgeTo(c *Block) {
        i := len(b.Succs)
        j := len(c.Preds)