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authorBlue Swirl <blauwirbel@gmail.com>2010-10-13 18:38:08 +0000
committerBlue Swirl <blauwirbel@gmail.com>2010-10-13 18:43:20 +0000
commitd9895452f0c090eeac80ea6fce0b188f2ad42a5f (patch)
tree5ce6779849319e46d53a70cee5c41359cb9efbf8 /target-ppc
parent3b5c1a004e79056e5e0f6afa2db0d374ce741c7d (diff)
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ppc: avoid write only variables
Compiling with GCC 4.6.0 20100925 produced warnings: /src/qemu/target-ppc/op_helper.c: In function 'helper_icbi': /src/qemu/target-ppc/op_helper.c:351:14: error: variable 'tmp' set but not used [-Werror=unused-but-set-variable] /src/qemu/target-ppc/op_helper.c: In function 'do_6xx_tlb': /src/qemu/target-ppc/op_helper.c:3805:28: error: variable 'EPN' set but not used [-Werror=unused-but-set-variable] /src/qemu/target-ppc/op_helper.c: In function 'do_74xx_tlb': /src/qemu/target-ppc/op_helper.c:3838:28: error: variable 'EPN' set but not used [-Werror=unused-but-set-variable] Fix by adding a dummy cast so that the variable is not unused. Delete tmp. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'target-ppc')
-rw-r--r--target-ppc/op_helper.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c
index 45f1655cb6..f32a5fffd6 100644
--- a/target-ppc/op_helper.c
+++ b/target-ppc/op_helper.c
@@ -348,15 +348,13 @@ void helper_dcbz_970(target_ulong addr)
void helper_icbi(target_ulong addr)
{
- uint32_t tmp;
-
addr &= ~(env->dcache_line_size - 1);
/* Invalidate one cache line :
* PowerPC specification says this is to be treated like a load
* (not a fetch) by the MMU. To be sure it will be so,
* do the load "by hand".
*/
- tmp = ldl(addr);
+ ldl(addr);
tb_invalidate_page_range(addr, addr + env->icache_line_size);
}
@@ -3814,6 +3812,7 @@ static void do_6xx_tlb (target_ulong new_EPN, int is_code)
EPN = env->spr[SPR_DMISS];
}
way = (env->spr[SPR_SRR1] >> 17) & 1;
+ (void)EPN; /* avoid a compiler warning */
LOG_SWTLB("%s: EPN " TARGET_FMT_lx " " TARGET_FMT_lx " PTE0 " TARGET_FMT_lx
" PTE1 " TARGET_FMT_lx " way %d\n", __func__, new_EPN, EPN, CMP,
RPN, way);
@@ -3842,6 +3841,7 @@ static void do_74xx_tlb (target_ulong new_EPN, int is_code)
CMP = env->spr[SPR_PTEHI];
EPN = env->spr[SPR_TLBMISS] & ~0x3;
way = env->spr[SPR_TLBMISS] & 0x3;
+ (void)EPN; /* avoid a compiler warning */
LOG_SWTLB("%s: EPN " TARGET_FMT_lx " " TARGET_FMT_lx " PTE0 " TARGET_FMT_lx
" PTE1 " TARGET_FMT_lx " way %d\n", __func__, new_EPN, EPN, CMP,
RPN, way);