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| author | Stefan Weil <sw@weilnetz.de> | 2021-01-28 18:21:27 +0100 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2021-01-29 09:31:53 +0100 |
| commit | 77182df19f874adfc4ac98248606c154764baaa8 (patch) | |
| tree | ad765f665db2a22d7f3162b47b124ca632919494 /target | |
| parent | 0c373c017808764630cdfa52018bc1cfbe8ad8db (diff) | |
| download | qemu-77182df19f874adfc4ac98248606c154764baaa8.zip | |
target/rx: Fix compiler errors for build with sanitizers
gcc (Debian 10.2.1-6) 10.2.1 20210110 aborts builds with enabled sanitizers:
../../../target/rx/op_helper.c: In function ‘helper_scmpu’:
../../../target/rx/op_helper.c:213:24: error: ‘tmp1’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
213 | env->psw_c = (tmp0 >= tmp1);
| ~~~~~~^~~~~~~~
../../../target/rx/op_helper.c:213:24: error: ‘tmp0’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
../../../target/rx/op_helper.c: In function ‘helper_suntil’:
../../../target/rx/op_helper.c:299:23: error: ‘tmp’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
299 | env->psw_c = (tmp <= env->regs[2]);
| ~~~~~^~~~~~~~~~~~~~~~
../../../target/rx/op_helper.c: In function ‘helper_swhile’:
../../../target/rx/op_helper.c:318:23: error: ‘tmp’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
318 | env->psw_c = (tmp <= env->regs[2]);
| ~~~~~^~~~~~~~~~~~~~~~
Rewriting the code fixes those errors.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210128172127.46041-1-sw@weilnetz.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'target')
| -rw-r--r-- | target/rx/op_helper.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/target/rx/op_helper.c b/target/rx/op_helper.c index 59389f4992..4d315b4449 100644 --- a/target/rx/op_helper.c +++ b/target/rx/op_helper.c @@ -201,14 +201,14 @@ void helper_scmpu(CPURXState *env) if (env->regs[3] == 0) { return; } - while (env->regs[3] != 0) { + do { tmp0 = cpu_ldub_data_ra(env, env->regs[1]++, GETPC()); tmp1 = cpu_ldub_data_ra(env, env->regs[2]++, GETPC()); env->regs[3]--; if (tmp0 != tmp1 || tmp0 == '\0') { break; } - } + } while (env->regs[3] != 0); env->psw_z = tmp0 - tmp1; env->psw_c = (tmp0 >= tmp1); } @@ -287,14 +287,14 @@ void helper_suntil(CPURXState *env, uint32_t sz) if (env->regs[3] == 0) { return ; } - while (env->regs[3] != 0) { + do { tmp = cpu_ldufn[sz](env, env->regs[1], GETPC()); env->regs[1] += 1 << sz; env->regs[3]--; if (tmp == env->regs[2]) { break; } - } + } while (env->regs[3] != 0); env->psw_z = tmp - env->regs[2]; env->psw_c = (tmp <= env->regs[2]); } @@ -306,14 +306,14 @@ void helper_swhile(CPURXState *env, uint32_t sz) if (env->regs[3] == 0) { return ; } - while (env->regs[3] != 0) { + do { tmp = cpu_ldufn[sz](env, env->regs[1], GETPC()); env->regs[1] += 1 << sz; env->regs[3]--; if (tmp != env->regs[2]) { break; } - } + } while (env->regs[3] != 0); env->psw_z = env->regs[3]; env->psw_c = (tmp <= env->regs[2]); } |