[01/11] tcg: Clean up local variable shadowing

Commit Message

Philippe Mathieu-Daudé Aug. 31, 2023, 10:55 p.m. UTC

Fix:

  tcg/tcg.c:2551:27: error: declaration shadows a local variable [-Werror,-Wshadow]
                    MemOp op = get_memop(oi);
                          ^
  tcg/tcg.c:2437:12: note: previous declaration is here
    TCGOp *op;
           ^
  accel/tcg/tb-maint.c:245:18: error: declaration shadows a local variable [-Werror,-Wshadow]
        for (int i = 0; i < V_L2_SIZE; i++) {
                 ^
  accel/tcg/tb-maint.c:210:9: note: previous declaration is here
    int i;
        ^

Signed-off-by: Philippe Mathieu-Daudé <[e-mail]>
---
 accel/tcg/tb-maint.c |  3 +--
 tcg/tcg.c            | 16 ++++++++--------
 2 files changed, 9 insertions(+), 10 deletions(-)

Comments

Richard Henderson Sept. 1, 2023, 12:38 a.m. UTC | #1

On 8/31/23 15:55, Philippe Mathieu-Daudé wrote:
> -                    MemOp op = get_memop(oi);
> +                    MemOp o = get_memop(oi);

mop would be a more descriptive replacement.

Otherwise,
Reviewed-by: Richard Henderson <[e-mail]>


r~

Philippe Mathieu-Daudé Sept. 4, 2023, 12:52 p.m. UTC | #2

On 1/9/23 02:38, Richard Henderson wrote:
> On 8/31/23 15:55, Philippe Mathieu-Daudé wrote:
>> -                    MemOp op = get_memop(oi);
>> +                    MemOp o = get_memop(oi);
> 
> mop would be a more descriptive replacement.

I went with that first, but then noticed 'MemOpIdx oi' and
renamed as 'o'. Anyway I'll change to 'mop', thanks!

> 
> Otherwise,
> Reviewed-by: Richard Henderson <[e-mail]>
> 
> 
> r~

Patch

diff --git a/accel/tcg/tb-maint.c b/accel/tcg/tb-maint.c
index c406b2f7b7..f1cf3ad736 100644
--- a/accel/tcg/tb-maint.c
+++ b/accel/tcg/tb-maint.c
@@ -207,13 +207,12 @@  static PageDesc *page_find_alloc(tb_page_addr_t index, bool alloc)
 {
     PageDesc *pd;
     void **lp;
-    int i;
 
     /* Level 1.  Always allocated.  */
     lp = l1_map + ((index >> v_l1_shift) & (v_l1_size - 1));
 
     /* Level 2..N-1.  */
-    for (i = v_l2_levels; i > 0; i--) {
+    for (int i = v_l2_levels; i > 0; i--) {
         void **p = qatomic_rcu_read(lp);
 
         if (p == NULL) {
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 620dbe08da..46a3a231b8 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -2548,21 +2548,21 @@  static void tcg_dump_ops(TCGContext *s, FILE *f, bool have_prefs)
                 {
                     const char *s_al, *s_op, *s_at;
                     MemOpIdx oi = op->args[k++];
-                    MemOp op = get_memop(oi);
+                    MemOp o = get_memop(oi);
                     unsigned ix = get_mmuidx(oi);
 
-                    s_al = alignment_name[(op & MO_AMASK) >> MO_ASHIFT];
-                    s_op = ldst_name[op & (MO_BSWAP | MO_SSIZE)];
-                    s_at = atom_name[(op & MO_ATOM_MASK) >> MO_ATOM_SHIFT];
-                    op &= ~(MO_AMASK | MO_BSWAP | MO_SSIZE | MO_ATOM_MASK);
+                    s_al = alignment_name[(o & MO_AMASK) >> MO_ASHIFT];
+                    s_op = ldst_name[o & (MO_BSWAP | MO_SSIZE)];
+                    s_at = atom_name[(o & MO_ATOM_MASK) >> MO_ATOM_SHIFT];
+                    o &= ~(MO_AMASK | MO_BSWAP | MO_SSIZE | MO_ATOM_MASK);
 
                     /* If all fields are accounted for, print symbolically. */
-                    if (!op && s_al && s_op && s_at) {
+                    if (!o && s_al && s_op && s_at) {
                         col += ne_fprintf(f, ",%s%s%s,%u",
                                           s_at, s_al, s_op, ix);
                     } else {
-                        op = get_memop(oi);
-                        col += ne_fprintf(f, ",$0x%x,%u", op, ix);
+                        o = get_memop(oi);
+                        col += ne_fprintf(f, ",$0x%x,%u", o, ix);
                     }
                     i = 1;
                 }