[v3,03/24] disas/nanomips: Delete NMD class field

Commit Message

Milica Lazarevic Sept. 12, 2022, 12:26 p.m. UTC

The m_requested_instruction_categories field always has the same value,
ALL_ATTRIBUTES. The only use of that field is within the if statement.
When replaced with a specific value, the if statement is always false,
so it has been removed.

Now, when the only use of the m_requested_instruction_categories field
is removed, we can delete the field declaration and initialization in
the NMD class. Also, we're changing the way of the construction of the
NMD object in the nanomips_dis function.

Signed-off-by: Milica Lazarevic <[e-mail]>
---
 disas/nanomips.cpp | 13 +------------
 disas/nanomips.h   |  4 +---
 2 files changed, 2 insertions(+), 15 deletions(-)

Comments

Richard Henderson Sept. 13, 2022, 7:50 a.m. UTC | #1

On 9/12/22 13:26, Milica Lazarevic wrote:
> The m_requested_instruction_categories field always has the same value,
> ALL_ATTRIBUTES. The only use of that field is within the if statement.
> When replaced with a specific value, the if statement is always false,
> so it has been removed.
> 
> Now, when the only use of the m_requested_instruction_categories field
> is removed, we can delete the field declaration and initialization in
> the NMD class. Also, we're changing the way of the construction of the
> NMD object in the nanomips_dis function.
> 
> Signed-off-by: Milica Lazarevic<[e-mail]>
> ---
>   disas/nanomips.cpp | 13 +------------
>   disas/nanomips.h   |  4 +---
>   2 files changed, 2 insertions(+), 15 deletions(-)

Reviewed-by: Richard Henderson <[e-mail]>

r~

Patch

diff --git a/disas/nanomips.cpp b/disas/nanomips.cpp
index bdc640b38b..721ca3f52b 100644
--- a/disas/nanomips.cpp
+++ b/disas/nanomips.cpp
@@ -51,7 +51,7 @@  int nanomips_dis(char *buf,
     uint16 bits[3] = {one, two, three};
 
     TABLE_ENTRY_TYPE type;
-    NMD d(address, ALL_ATTRIBUTES);
+    NMD d(address);
     int size = d.Disassemble(bits, disasm, type);
 
     strcpy(buf, disasm.c_str());
@@ -812,17 +812,6 @@  int NMD::Disassemble(const uint16 * data, std::string & dis,
                                    (table[i].type == call_instruction) ||
                                    (table[i].type == branch_instruction) ||
                                    (table[i].type == return_instruction)) {
-                            if ((table[i].attributes != 0) &&
-                                (m_requested_instruction_categories &
-                                 table[i].attributes) == 0) {
-                                /*
-                                 * failed due to instruction having
-                                 * an ASE attribute and the requested version
-                                 * not having that attribute
-                                 */
-                                dis = "ASE attribute mismatch";
-                                return -5;
-                            }
                             disassembly_function dis_fn = table[i].disassembly;
                             if (dis_fn == 0) {
                                 dis = "disassembler failure - bad table entry";
diff --git a/disas/nanomips.h b/disas/nanomips.h
index f65a0957b8..5bdfe1e30b 100644
--- a/disas/nanomips.h
+++ b/disas/nanomips.h
@@ -65,9 +65,8 @@  class NMD
 {
 public:
 
-    NMD(img_address pc, TABLE_ATTRIBUTE_TYPE requested_instruction_categories)
+    NMD(img_address pc)
         : m_pc(pc)
-        , m_requested_instruction_categories(requested_instruction_categories)
     {
     }
 
@@ -77,7 +76,6 @@  public:
 private:
 
     img_address           m_pc;
-    TABLE_ATTRIBUTE_TYPE   m_requested_instruction_categories;
 
     typedef std::string(NMD:: *disassembly_function)(uint64 instruction);
     typedef bool(NMD:: *conditional_function)(uint64 instruction);