The existing definition using register class CC_REG does not
work because CC_REGNUM does not support normal modes, and so
fails to match register_operand. Use a non-register constraint
and the cc_register predicate instead.
* config/arm/constraints.md (c): Use cc_register predicate.
---
gcc/config/arm/constraints.md | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/gcc/config/arm/constraints.md b/gcc/config/arm/constraints.md
index b76de81b85c..e02b678d26d 100644
--- a/gcc/config/arm/constraints.md
+++ b/gcc/config/arm/constraints.md
@@ -94,8 +94,9 @@
"@internal
Thumb only. The union of the low registers and the stack register.")
-(define_register_constraint "c" "CC_REG"
- "@internal The condition code register.")
+(define_constraint "c"
+ "@internal The condition code register."
+ (match_operand 0 "cc_register"))
(define_register_constraint "Cs" "CALLER_SAVE_REGS"
"@internal The caller save registers. Useful for sibcalls.")
--
2.17.1
