mips: avoid write only variables
Compiling with GCC 4.6.0 20100925 produced a lot of warnings like:
/src/qemu/target-mips/translate.c: In function 'gen_ld':
/src/qemu/target-mips/translate.c:1039:17: error: variable 'opn' set but not used [-Werror=unused-but-set-variable]
Fix by adding a dummy cast so that the variable is not unused.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/target-mips/translate.c b/target-mips/translate.c
index 20b66a8..d62c615 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -1153,6 +1153,7 @@
opn = "ll";
break;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]);
tcg_temp_free(t0);
tcg_temp_free(t1);
@@ -1212,6 +1213,7 @@
opn = "swr";
break;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]);
tcg_temp_free(t0);
tcg_temp_free(t1);
@@ -1247,6 +1249,7 @@
opn = "sc";
break;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]);
tcg_temp_free(t1);
tcg_temp_free(t0);
@@ -1312,6 +1315,7 @@
generate_exception(ctx, EXCP_RI);
goto out;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %d(%s)", opn, fregnames[ft], offset, regnames[base]);
out:
tcg_temp_free(t0);
@@ -1412,6 +1416,7 @@
break;
#endif
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm);
}
@@ -1454,6 +1459,7 @@
opn = "lui";
break;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm);
}
@@ -1481,6 +1487,7 @@
opn = "sltiu";
break;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm);
tcg_temp_free(t0);
}
@@ -1572,6 +1579,7 @@
break;
#endif
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm);
tcg_temp_free(t0);
}
@@ -1752,6 +1760,7 @@
opn = "mul";
break;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
}
@@ -1789,6 +1798,7 @@
tcg_gen_movi_tl(cpu_gpr[rd], 0);
gen_set_label(l1);
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
}
@@ -1849,6 +1859,7 @@
opn = "xor";
break;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
}
@@ -1878,6 +1889,7 @@
opn = "sltu";
break;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
tcg_temp_free(t0);
tcg_temp_free(t1);
@@ -1958,6 +1970,7 @@
break;
#endif
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
tcg_temp_free(t0);
tcg_temp_free(t1);
@@ -1997,6 +2010,7 @@
opn = "mtlo";
break;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s", opn, regnames[reg]);
}
@@ -2229,6 +2243,7 @@
generate_exception(ctx, EXCP_RI);
goto out;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s %s", opn, regnames[rs], regnames[rt]);
out:
tcg_temp_free(t0);
@@ -2308,6 +2323,7 @@
goto out;
}
gen_store_gpr(t0, rd);
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
out:
@@ -2348,6 +2364,7 @@
break;
#endif
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %s", opn, regnames[rd], regnames[rs]);
tcg_temp_free(t0);
}
@@ -2561,6 +2578,7 @@
#endif
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %s", opn, regnames[rd], regnames[rs]);
tcg_temp_free(t0);
tcg_temp_free(t1);
@@ -3730,6 +3748,7 @@
default:
goto die;
}
+ (void)rn; /* avoid a compiler warning */
LOG_DISAS("mfc0 %s (reg %d sel %d)\n", rn, reg, sel);
return;
@@ -4320,6 +4339,7 @@
default:
goto die;
}
+ (void)rn; /* avoid a compiler warning */
LOG_DISAS("mtc0 %s (reg %d sel %d)\n", rn, reg, sel);
/* For simplicity assume that all writes can cause interrupts. */
if (use_icount) {
@@ -4892,6 +4912,7 @@
default:
goto die;
}
+ (void)rn; /* avoid a compiler warning */
LOG_DISAS("dmfc0 %s (reg %d sel %d)\n", rn, reg, sel);
return;
@@ -5483,6 +5504,7 @@
default:
goto die;
}
+ (void)rn; /* avoid a compiler warning */
LOG_DISAS("dmtc0 %s (reg %d sel %d)\n", rn, reg, sel);
/* For simplicity assume that all writes can cause interrupts. */
if (use_icount) {
@@ -5943,6 +5965,7 @@
generate_exception(ctx, EXCP_RI);
return;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s %d", opn, regnames[rt], rd);
}
#endif /* !CONFIG_USER_ONLY */
@@ -6052,6 +6075,7 @@
generate_exception (ctx, EXCP_RI);
goto out;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s: cond %02x target " TARGET_FMT_lx, opn,
ctx->hflags, btarget);
ctx->btarget = btarget;
@@ -6281,6 +6305,7 @@
generate_exception (ctx, EXCP_RI);
goto out;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s %s", opn, regnames[rt], fregnames[fs]);
out:
@@ -7608,6 +7633,7 @@
generate_exception (ctx, EXCP_RI);
return;
}
+ (void)opn; /* avoid a compiler warning */
switch (optype) {
case BINOP:
MIPS_DEBUG("%s %s, %s, %s", opn, fregnames[fd], fregnames[fs], fregnames[ft]);
@@ -7720,6 +7746,7 @@
break;
}
tcg_temp_free(t0);
+ (void)opn; (void)store; /* avoid compiler warnings */
MIPS_DEBUG("%s %s, %s(%s)", opn, fregnames[store ? fs : fd],
regnames[index], regnames[base]);
}
@@ -7993,6 +8020,7 @@
generate_exception (ctx, EXCP_RI);
return;
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s %s, %s, %s, %s", opn, fregnames[fd], fregnames[fr],
fregnames[fs], fregnames[ft]);
}
@@ -9971,6 +9999,7 @@
break;
#endif
}
+ (void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s, %s, %d(%s)", opn, regnames[rd], offset, regnames[base]);
tcg_temp_free(t0);
tcg_temp_free(t1);
