[dev.ssa] cmd/compile/internal/gc: support CALLFUNC as statement
I don't have strong understanding of the AST structure, so I'm
not sure if this is the right way to handle function call statements.
Change-Id: Ib526f667ab483b32d9fd17da800b5d6f4b26c4c9
Reviewed-on: https://go-review.googlesource.com/11139
Reviewed-by: Keith Randall <khr@golang.org>
diff --git a/src/cmd/compile/internal/gc/ssa.go b/src/cmd/compile/internal/gc/ssa.go
index 81a55e4..f2dbabe 100644
--- a/src/cmd/compile/internal/gc/ssa.go
+++ b/src/cmd/compile/internal/gc/ssa.go
@@ -335,6 +335,9 @@
s.startBlock(bEnd)
+ case OCALLFUNC:
+ s.expr(n)
+
case OVARKILL:
// TODO(khr): ??? anything to do here? Only for addrtaken variables?
// Maybe just link it in the store chain?
@@ -464,6 +467,10 @@
s.startBlock(bNext)
var titer Iter
fp := Structfirst(&titer, Getoutarg(n.Left.Type))
+ if fp == nil {
+ // CALLFUNC has no return value. Continue with the next statement.
+ return nil
+ }
a := s.entryNewValue1I(ssa.OpOffPtr, Ptrto(fp.Type), fp.Width, s.sp)
return s.newValue2(ssa.OpLoad, fp.Type, a, call)
default:
