diff --git a/gcc/config/bpf/bpf.md b/gcc/config/bpf/bpf.md
index 2ffc4ebd17e..66436397bb7 100644
--- a/gcc/config/bpf/bpf.md
+++ b/gcc/config/bpf/bpf.md
@@ -131,7 +131,7 @@
         (plus:AM (match_operand:AM 1 "register_operand"   " 0,0")
                  (match_operand:AM 2 "reg_or_imm_operand" " r,I")))]
   "1"
-  "{add<msuffix>\t%0,%2|%w0 += %w1}"
+  "{add<msuffix>\t%0,%2|%w0 += %w2}"
   [(set_attr "type" "<mtype>")])
 
 ;;; Subtraction
@@ -144,7 +144,7 @@
         (minus:AM (match_operand:AM 1 "register_operand" " 0")
                   (match_operand:AM 2 "register_operand" " r")))]
   ""
-  "{sub<msuffix>\t%0,%2|%w0 -= %w1}"
+  "{sub<msuffix>\t%0,%2|%w0 -= %w2}"
   [(set_attr "type" "<mtype>")])
 
 ;;; Negation
diff --git a/gcc/testsuite/gcc.target/bpf/alu-2.c b/gcc/testsuite/gcc.target/bpf/alu-2.c
new file mode 100644
index 00000000000..0444a9bc68a
--- /dev/null
+++ b/gcc/testsuite/gcc.target/bpf/alu-2.c
@@ -0,0 +1,12 @@
+/* Check add and sub instructions.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+long foo (long x, long y)
+{
+  return y - x + 4;
+}
+
+/* { dg-final { scan-assembler-not {sub\t(%r.),\1\n} } } */
+/* { dg-final { scan-assembler {sub\t(\%r.),(\%r.)\n} } } */
+/* { dg-final { scan-assembler {add\t(\%r.),4\n} } } */
diff --git a/gcc/testsuite/gcc.target/bpf/alu-pseudoc-2.c b/gcc/testsuite/gcc.target/bpf/alu-pseudoc-2.c
new file mode 100644
index 00000000000..751db2477c0
--- /dev/null
+++ b/gcc/testsuite/gcc.target/bpf/alu-pseudoc-2.c
@@ -0,0 +1,13 @@
+/* Check add and sub instructions (pseudoc asm dialect).  */
+/* { dg-do compile } */
+/* { dg-options "-masm=pseudoc" } */
+
+long foo (long x, long y)
+{
+  return y - x + 4;
+}
+
+/* { dg-final { scan-assembler-not {\t(r.) -= \1\n} } } */
+/* { dg-final { scan-assembler {\t(r.) -= (r.)\n} } } */
+/* { dg-final { scan-assembler {\t(r.) \+= 4\n} } } */
+