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-rw-r--r--gcc/config/mips/constraints.md3
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/config/mips/constraints.md b/gcc/config/mips/constraints.md
index 49e48954f51..f6834fd1e94 100644
--- a/gcc/config/mips/constraints.md
+++ b/gcc/config/mips/constraints.md
@@ -92,6 +92,9 @@
;; but the DSP version allows any accumulator target.
(define_register_constraint "ka" "ISA_HAS_DSP_MULT ? ACC_REGS : MD_REGS")
+(define_register_constraint "kb" "M16_STORE_REGS"
+ "@internal")
+
(define_constraint "kf"
"@internal"
(match_operand 0 "force_to_mem_operand"))