[PATCH] target/ppc: Rename variables to avoid local variable shadowing in VUPKPX

[Cédric Le Goater]

and fix such warnings :

  ../target/ppc/int_helper.c: In function ‘helper_vupklpx’:
  ../target/ppc/int_helper.c:2025:21: warning: declaration of ‘r’ shadows a 
parameter [-Wshadow=local]
   2025 |             uint8_t r = (e >> 10) & 0x1f;                             
  \
        |                     ^
  ../target/ppc/int_helper.c:2033:1: note: in expansion of macro ‘VUPKPX’
   2033 | VUPKPX(lpx, UPKLO)
        | ^~~~~~
  ../target/ppc/int_helper.c:2017:41: note: shadowed declaration is here
   2017 |     void helper_vupk##suffix(ppc_avr_t *r, ppc_avr_t *b)              
  \
        |                              ~~~~~~~~~~~^
  ../target/ppc/int_helper.c:2033:1: note: in expansion of macro ‘VUPKPX’
   2033 | VUPKPX(lpx, UPKLO)
        | ^~~~~~

Signed-off-by: Cédric Le Goater <c...@kaod.org>
---
 target/ppc/int_helper.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
index 6fd00684a5b9..8719ac6e6265 100644
--- a/target/ppc/int_helper.c
+++ b/target/ppc/int_helper.c
@@ -2022,11 +2022,11 @@ void helper_vsum4ubs(CPUPPCState *env, ppc_avr_t *r, 
ppc_avr_t *a, ppc_avr_t *b)
         for (i = 0; i < ARRAY_SIZE(r->u32); i++) {                      \
             uint16_t e = b->u16[hi ? i : i + 4];                        \
             uint8_t a = (e >> 15) ? 0xff : 0;                           \
-            uint8_t r = (e >> 10) & 0x1f;                               \
+            uint8_t _r = (e >> 10) & 0x1f;                              \
             uint8_t g = (e >> 5) & 0x1f;                                \
-            uint8_t b = e & 0x1f;                                       \
+            uint8_t _b = e & 0x1f;                                      \
                                                                         \
-            result.u32[i] = (a << 24) | (r << 16) | (g << 8) | b;       \
+            result.u32[i] = (a << 24) | (_r << 16) | (g << 8) | _b;     \
         }                                                               \
         *r = result;                                                    \
     }
-- 
2.41.0