cmd/compile: fix error message formatting in decomposeBuiltInPhi

Change-Id: Ib2b2eb6bebb59134f671a79739ee1acaf32ed443
Reviewed-on: https://go-review.googlesource.com/c/go/+/411217
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Joedian Reid <joedian@golang.org>

diff --git a/src/cmd/compile/internal/ssa/decompose.go b/src/cmd/compile/internal/ssa/decompose.go
index 753d69cebcd1a3b32eae9dbee113d943de009ade..2293fc01ce6c619784a444524c895d60f23c4e5d 100644 (file)
--- a/src/cmd/compile/internal/ssa/decompose.go
+++ b/src/cmd/compile/internal/ssa/decompose.go
@@ -135,7 +135,7 @@ func decomposeBuiltInPhi(v *Value) {
        case v.Type.IsFloat():
                // floats are never decomposed, even ones bigger than RegSize
        case v.Type.Size() > v.Block.Func.Config.RegSize:
-               v.Fatalf("undecomposed type %s", v.Type)
+               v.Fatalf("%v undecomposed type %v", v, v.Type)
        }
 }