diff --git a/src/cmd/compile/internal/ssa/expand_calls.go b/src/cmd/compile/internal/ssa/expand_calls.go
index a1ce27cc4a..b37d3b8c9c 100644
--- a/src/cmd/compile/internal/ssa/expand_calls.go
+++ b/src/cmd/compile/internal/ssa/expand_calls.go
@@ -852,7 +852,7 @@ func storeOneArg(x *expandState, pos src.XPos, b *Block, locs []*LocalSlot, suff
 
 // storeOneLoad creates a decomposed (one step) load that is then stored.
 func storeOneLoad(x *expandState, pos src.XPos, b *Block, source, mem *Value, t *types.Type, offArg, offStore int64, loadRegOffset Abi1RO, storeRc registerCursor) *Value {
-	from := x.offsetFrom(b, source.Args[0], offArg, types.NewPtr(t))
+	from := x.offsetFrom(source.Block, source.Args[0], offArg, types.NewPtr(t))
 	w := source.Block.NewValue2(source.Pos, OpLoad, t, from, mem)
 	return x.storeArgOrLoad(pos, b, w, mem, t, offStore, loadRegOffset, storeRc)
 }
diff --git a/test/fixedbugs/issue48026.go b/test/fixedbugs/issue48026.go
new file mode 100644
index 0000000000..a693d33b45
--- /dev/null
+++ b/test/fixedbugs/issue48026.go
@@ -0,0 +1,26 @@
+// compile -d=ssa/check/on
+
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package p
+
+var i int
+
+type t struct {
+	a, b, c, d, e int
+}
+
+func f(p t, q int) int {
+	var a, b, c, d, e, f, g int
+	var h, i, j, k, l, m int
+	_, _, _, _, _, _, _ = a, b, c, d, e, f, g
+	_, _, _, _, _, _ = h, i, j, k, l, m
+	return 0
+}
+
+func g() int {
+	var v t
+	return f(v, 1<<i)
+}