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target/xtensa: disas/xtensa: fix coverity warnings

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Coverity warnings CID 1385146, 1385148 1385149 and 1385150 point that
xtensa_opcode_num_operands and xtensa_format_num_slots may return -1
even when xtensa_opcode_decode and xtensa_format_decode succeed. In that
case unsigned counters used to iterate through operands/slots will not
do the right thing.
Make counters and loop bounds signed to fix the warnings.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov 2018-01-18 10:08:49 -08:00
parent 251634f4ce
commit 847a647320
2 changed files with 4 additions and 4 deletions
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4
disas/xtensa.c
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@ -37,7 +37,7 @@ int print_insn_xtensa(bfd_vma memaddr, struct disassemble_info *info)
bfd_byte *buffer = g_malloc(1);
int status = info->read_memory_func(memaddr, buffer, 1, info);
xtensa_format fmt;
unsigned slot, slots;
int slot, slots;
unsigned len;
if (status) {
@ -79,7 +79,7 @@ int print_insn_xtensa(bfd_vma memaddr, struct disassemble_info *info)
for (slot = 0; slot < slots; ++slot) {
xtensa_opcode opc;
unsigned opnd, vopnd, opnds;
int opnd, vopnd, opnds;
if (slot) {
info->fprintf_func(info->stream, "; ");