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authorJose Ricardo Ziviani <joserz@linux.vnet.ibm.com>2017-01-11 19:11:25 -0200
committerDavid Gibson <david@gibson.dropbear.id.au>2017-01-31 10:10:14 +1100
commit365206aeb3d0bb72043d157088a0ebcfaad851f7 (patch)
tree468a4882de8cd70c60224ab3ea0c3092a07eb60e /target/ppc
parent0dfe952dc5c2921488a1172407857d5bb81d17a4 (diff)
ppc: Fix a warning in bcdcfz code and improve BCD_DIG_BYTE macro
This commit fixes a warning in the code "(i * 2) ? .. : ..", which should be better as "i ? .. : ..", and improves the BCD_DIG_BYTE macro by placing parentheses around its argument to avoid possible expansion issues like: BCD_DIG_BYTE(i + j). Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target/ppc')
-rw-r--r--target/ppc/int_helper.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
index 81f134bc4b..8cf4ee32c1 100644
--- a/target/ppc/int_helper.c
+++ b/target/ppc/int_helper.c
@@ -2551,9 +2551,9 @@ void helper_vsubecuq(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
#define NATIONAL_NEG 0x2D
#if defined(HOST_WORDS_BIGENDIAN)
-#define BCD_DIG_BYTE(n) (15 - (n/2))
+#define BCD_DIG_BYTE(n) (15 - ((n) / 2))
#else
-#define BCD_DIG_BYTE(n) (n/2)
+#define BCD_DIG_BYTE(n) ((n) / 2)
#endif
static int bcd_get_sgn(ppc_avr_t *bcd)
@@ -2876,7 +2876,7 @@ uint32_t helper_bcdcfz(ppc_avr_t *r, ppc_avr_t *b, uint32_t ps)
}
for (i = 0; i < 16; i++) {
- zone_digit = (i * 2) ? b->u8[BCD_DIG_BYTE(i * 2)] >> 4 : zone_lead;
+ zone_digit = i ? b->u8[BCD_DIG_BYTE(i * 2)] >> 4 : zone_lead;
digit = b->u8[BCD_DIG_BYTE(i * 2)] & 0xF;
if (unlikely(zone_digit != zone_lead || digit > 0x9)) {
invalid = 1;