[dev.ssa] cmd/compile/internal/ssa: Initial implementation of memory zeroing
This will make it possible for us to start implementing interfaces
and other stack allocated types which are more than one machine word.
Change-Id: I52b187a791cf1919cb70ed6dabdc9f57b317ea83
Reviewed-on: https://go-review.googlesource.com/11631
Reviewed-by: Keith Randall <khr@golang.org>
diff --git a/src/cmd/compile/internal/ssa/gen/genericOps.go b/src/cmd/compile/internal/ssa/gen/genericOps.go
index 151e8e1..a6e6c93 100644
--- a/src/cmd/compile/internal/ssa/gen/genericOps.go
+++ b/src/cmd/compile/internal/ssa/gen/genericOps.go
@@ -51,6 +51,7 @@
{name: "Load"}, // Load from arg0. arg1=memory
{name: "Store"}, // Store arg1 to arg0. arg2=memory. Returns memory.
{name: "Move"}, // arg0=destptr, arg1=srcptr, arg2=mem, auxint=size. Returns memory.
+ {name: "Zero"}, // arg0=destptr, arg1=mem, auxint=size. Returns memory.
// Function calls. Arguments to the call have already been written to the stack.
// Return values appear on the stack. The method receiver, if any, is treated
