[gcc(refs/users/clyon/heads/mve-autovec)] arm: Add support for VPR_REG in arm_class_likely_spilled_p

[Christophe Lyon]

https://gcc.gnu.org/g:4dac0db14034f334e586c401ddf5af49166dbade

commit 4dac0db14034f334e586c401ddf5af49166dbade
Author: Christophe Lyon <christophe.lyon@foss.st.com>
Date:   Wed Oct 13 09:16:14 2021 +0000

    arm: Add support for VPR_REG in arm_class_likely_spilled_p
    
    VPR_REG is the only register in its class, so it should be handled by
    TARGET_CLASS_LIKELY_SPILLED_P, which is achieved by calling
    default_class_likely_spilled_p.  No test fails without this patch, but
    it seems it should be implemented.
    
    2022-01-13  Christophe Lyon  <christophe.lyon@foss.st.com>
    
            gcc/
            * config/arm/arm.c (arm_class_likely_spilled_p): Handle VPR_REG.

Diff:
---
 gcc/config/arm/arm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index c3559ca8703..64a8f2dc7de 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -29317,7 +29317,7 @@ arm_class_likely_spilled_p (reg_class_t rclass)
       || rclass  == CC_REG)
     return true;
 
-  return false;
+  return default_class_likely_spilled_p (rclass);
 }
 
 /* Implements target hook small_register_classes_for_mode_p.  */