cmd/compile: use inc/dec for bytes, too

Change-Id: Ib2890ab1983cbef7c1c1ee5a10204ba3ace19b53
Reviewed-on: https://go-review.googlesource.com/21312
Run-TryBot: Alexandru Moșoi <alexandru@mosoi.ro>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>

diff --git a/src/cmd/compile/internal/amd64/ssa.go b/src/cmd/compile/internal/amd64/ssa.go
index df3be248d2237a718a2571ee2f504c6e4832f4a9..0ff2e88f0aca7a834bc85750be14e3109903c35d 100644 (file)
--- a/src/cmd/compile/internal/amd64/ssa.go
+++ b/src/cmd/compile/internal/amd64/ssa.go
@@ -430,9 +430,7 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) {
                                // and make a binary a little smaller.
                                case ssa.OpAMD64ADDQconst:
                                        asm = x86.AINCQ
-                               case ssa.OpAMD64ADDLconst:
-                                       asm = x86.AINCL
-                               case ssa.OpAMD64ADDWconst:
+                               case ssa.OpAMD64ADDLconst, ssa.OpAMD64ADDWconst, ssa.OpAMD64ADDBconst:
                                        asm = x86.AINCL
                                }
                                p := gc.Prog(asm)
@@ -444,9 +442,7 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) {
                                switch v.Op {
                                case ssa.OpAMD64ADDQconst:
                                        asm = x86.ADECQ
-                               case ssa.OpAMD64ADDLconst:
-                                       asm = x86.ADECL
-                               case ssa.OpAMD64ADDWconst:
+                               case ssa.OpAMD64ADDLconst, ssa.OpAMD64ADDWconst, ssa.OpAMD64ADDBconst:
                                        asm = x86.ADECL
                                }
                                p := gc.Prog(asm)