Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-hex-20210502' into staging

Minor cleanups.
Finish the rest of the hexagon integer instructions.

# gpg: Signature made Sun 02 May 2021 15:38:17 BST
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth-gitlab/tags/pull-hex-20210502: (31 commits)
  Hexagon (target/hexagon) CABAC decode bin
  Hexagon (target/hexagon) load into shifted register instructions
  Hexagon (target/hexagon) load and unpack bytes instructions
  Hexagon (target/hexagon) bit reverse (brev) addressing
  Hexagon (target/hexagon) circular addressing
  Hexagon (target/hexagon) add A4_addp_c/A4_subp_c
  Hexagon (target/hexagon) add A6_vminub_RdP
  Hexagon (target/hexagon) add A5_ACS (vacsh)
  Hexagon (target/hexagon) add F2_sfinvsqrta
  Hexagon (target/hexagon) add F2_sfrecipa instruction
  Hexagon (target/hexagon) compile all debug code
  Hexagon (target/hexagon) move QEMU_GENERATE to only be on during macros.h
  Hexagon (target/hexagon) cleanup reg_field_info definition
  Hexagon (target/hexagon) cleanup ternary operators in semantics
  Hexagon (target/hexagon) use softfloat for float-to-int conversions
  Hexagon (target/hexagon) replace float32_mul_pow2 with float32_scalbn
  Hexagon (target/hexagon) use softfloat default NaN and tininess
  Hexagon (target/hexagon) change type of softfloat_roundingmodes
  Hexagon (target/hexagon) remove unused carry_from_add64 function
  Hexagon (target/hexagon) change variables from int to bool when appropriate
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 42 insertions, 42 deletions

diff --git a/target/hexagon/decode.c b/target/hexagon/decode.c
index c9bacaa1ee..dffe1d1972 100644
--- a/target/hexagon/decode.c
+++ b/target/hexagon/decode.c
@@ -48,8 +48,8 @@ enum {
 DEF_REGMAP(R_16,  16, 0, 1, 2, 3, 4, 5, 6, 7, 16, 17, 18, 19, 20, 21, 22, 23)
 DEF_REGMAP(R__8,  8,  0, 2, 4, 6, 16, 18, 20, 22)
 
-#define DECODE_MAPPED_REG(REGNO, NAME) \
-    insn->regno[REGNO] = DECODE_REGISTER_##NAME[insn->regno[REGNO]];
+#define DECODE_MAPPED_REG(OPNUM, NAME) \
+    insn->regno[OPNUM] = DECODE_REGISTER_##NAME[insn->regno[OPNUM]];
 
 typedef struct {
     const struct DectreeTable *table_link;
@@ -340,8 +340,8 @@ static void decode_split_cmpjump(Packet *pkt)
         if (GET_ATTRIB(pkt->insn[i].opcode, A_NEWCMPJUMP)) {
             last = pkt->num_insns;
             pkt->insn[last] = pkt->insn[i];    /* copy the instruction */
-            pkt->insn[last].part1 = 1;    /* last instruction does the CMP */
-            pkt->insn[i].part1 = 0;    /* existing instruction does the JUMP */
+            pkt->insn[last].part1 = true;      /* last insn does the CMP */
+            pkt->insn[i].part1 = false;        /* existing insn does the JUMP */
             pkt->num_insns++;
         }
     }
@@ -354,7 +354,7 @@ static void decode_split_cmpjump(Packet *pkt)
     }
 }
 
-static inline int decode_opcode_can_jump(int opcode)
+static bool decode_opcode_can_jump(int opcode)
 {
     if ((GET_ATTRIB(opcode, A_JUMP)) ||
         (GET_ATTRIB(opcode, A_CALL)) ||
@@ -362,15 +362,15 @@ static inline int decode_opcode_can_jump(int opcode)
         (opcode == J2_pause)) {
         /* Exception to A_JUMP attribute */
         if (opcode == J4_hintjumpr) {
-            return 0;
+            return false;
         }
-        return 1;
+        return true;
     }
 
-    return 0;
+    return false;
 }
 
-static inline int decode_opcode_ends_loop(int opcode)
+static bool decode_opcode_ends_loop(int opcode)
 {
     return GET_ATTRIB(opcode, A_HWLOOP0_END) ||
            GET_ATTRIB(opcode, A_HWLOOP1_END);
@@ -383,9 +383,9 @@ static void decode_set_insn_attr_fields(Packet *pkt)
     int numinsns = pkt->num_insns;
     uint16_t opcode;
 
-    pkt->pkt_has_cof = 0;
-    pkt->pkt_has_endloop = 0;
-    pkt->pkt_has_dczeroa = 0;
+    pkt->pkt_has_cof = false;
+    pkt->pkt_has_endloop = false;
+    pkt->pkt_has_dczeroa = false;
 
     for (i = 0; i < numinsns; i++) {
         opcode = pkt->insn[i].opcode;
@@ -394,14 +394,14 @@ static void decode_set_insn_attr_fields(Packet *pkt)
         }
 
         if (GET_ATTRIB(opcode, A_DCZEROA)) {
-            pkt->pkt_has_dczeroa = 1;
+            pkt->pkt_has_dczeroa = true;
         }
 
         if (GET_ATTRIB(opcode, A_STORE)) {
             if (pkt->insn[i].slot == 0) {
-                pkt->pkt_has_store_s0 = 1;
+                pkt->pkt_has_store_s0 = true;
             } else {
-                pkt->pkt_has_store_s1 = 1;
+                pkt->pkt_has_store_s1 = true;
             }
         }
 
@@ -422,9 +422,9 @@ static void decode_set_insn_attr_fields(Packet *pkt)
  */
 static void decode_shuffle_for_execution(Packet *packet)
 {
-    int changed = 0;
+    bool changed = false;
     int i;
-    int flag;    /* flag means we've seen a non-memory instruction */
+    bool flag;    /* flag means we've seen a non-memory instruction */
     int n_mems;
     int last_insn = packet->num_insns - 1;
 
@@ -437,7 +437,7 @@ static void decode_shuffle_for_execution(Packet *packet)
     }
 
     do {
-        changed = 0;
+        changed = false;
         /*
          * Stores go last, must not reorder.
          * Cannot shuffle stores past loads, either.
@@ -445,13 +445,13 @@ static void decode_shuffle_for_execution(Packet *packet)
          * then a store, shuffle the store to the front.  Don't shuffle
          * stores wrt each other or a load.
          */
-        for (flag = n_mems = 0, i = last_insn; i >= 0; i--) {
+        for (flag = false, n_mems = 0, i = last_insn; i >= 0; i--) {
             int opcode = packet->insn[i].opcode;
 
             if (flag && GET_ATTRIB(opcode, A_STORE)) {
                 decode_send_insn_to(packet, i, last_insn - n_mems);
                 n_mems++;
-                changed = 1;
+                changed = true;
             } else if (GET_ATTRIB(opcode, A_STORE)) {
                 n_mems++;
             } else if (GET_ATTRIB(opcode, A_LOAD)) {
@@ -466,7 +466,7 @@ static void decode_shuffle_for_execution(Packet *packet)
                  * a .new value
                  */
             } else {
-                flag = 1;
+                flag = true;
             }
         }
 
@@ -474,7 +474,7 @@ static void decode_shuffle_for_execution(Packet *packet)
             continue;
         }
         /* Compares go first, may be reordered wrt each other */
-        for (flag = 0, i = 0; i < last_insn + 1; i++) {
+        for (flag = false, i = 0; i < last_insn + 1; i++) {
             int opcode = packet->insn[i].opcode;
 
             if ((strstr(opcode_wregs[opcode], "Pd4") ||
@@ -483,7 +483,7 @@ static void decode_shuffle_for_execution(Packet *packet)
                 /* This should be a compare (not a store conditional) */
                 if (flag) {
                     decode_send_insn_to(packet, i, 0);
-                    changed = 1;
+                    changed = true;
                     continue;
                 }
             } else if (GET_ATTRIB(opcode, A_IMPLICIT_WRITES_P3) &&
@@ -495,18 +495,18 @@ static void decode_shuffle_for_execution(Packet *packet)
                  */
                 if (flag) {
                     decode_send_insn_to(packet, i, 0);
-                    changed = 1;
+                    changed = true;
                     continue;
                 }
             } else if (GET_ATTRIB(opcode, A_IMPLICIT_WRITES_P0) &&
                        !GET_ATTRIB(opcode, A_NEWCMPJUMP)) {
                 if (flag) {
                     decode_send_insn_to(packet, i, 0);
-                    changed = 1;
+                    changed = true;
                     continue;
                 }
             } else {
-                flag = 1;
+                flag = true;
             }
         }
         if (changed) {
@@ -543,7 +543,7 @@ static void decode_apply_extenders(Packet *packet)
     int i;
     for (i = 0; i < packet->num_insns; i++) {
         if (GET_ATTRIB(packet->insn[i].opcode, A_IT_EXTENDER)) {
-            packet->insn[i + 1].extension_valid = 1;
+            packet->insn[i + 1].extension_valid = true;
             apply_extender(packet, i + 1, packet->insn[i].immed[0]);
         }
     }
@@ -764,7 +764,7 @@ static void decode_add_endloop_insn(Insn *insn, int loopnum)
     }
 }
 
-static inline int decode_parsebits_is_loopend(uint32_t encoding32)
+static bool decode_parsebits_is_loopend(uint32_t encoding32)
 {
     uint32_t bits = parse_bits(encoding32);
     return bits == 0x2;
@@ -775,8 +775,11 @@ decode_set_slot_number(Packet *pkt)
 {
     int slot;
     int i;
-    int hit_mem_insn = 0;
-    int hit_duplex = 0;
+    bool hit_mem_insn = false;
+    bool hit_duplex = false;
+    bool slot0_found = false;
+    bool slot1_found = false;
+    int slot1_iidx = 0;
 
     /*
      * The slots are encoded in reverse order
@@ -801,7 +804,7 @@ decode_set_slot_number(Packet *pkt)
         if ((GET_ATTRIB(pkt->insn[i].opcode, A_MEMLIKE) ||
              GET_ATTRIB(pkt->insn[i].opcode, A_MEMLIKE_PACKET_RULES)) &&
             !hit_mem_insn) {
-            hit_mem_insn = 1;
+            hit_mem_insn = true;
             pkt->insn[i].slot = 0;
             continue;
         }
@@ -818,7 +821,7 @@ decode_set_slot_number(Packet *pkt)
     for (i = pkt->num_insns - 1; i >= 0; i--) {
         /* First subinsn always goes to slot 0 */
         if (GET_ATTRIB(pkt->insn[i].opcode, A_SUBINSN) && !hit_duplex) {
-            hit_duplex = 1;
+            hit_duplex = true;
             pkt->insn[i].slot = 0;
             continue;
         }
@@ -830,13 +833,10 @@ decode_set_slot_number(Packet *pkt)
     }
 
     /* Fix the exceptions - slot 1 is never empty, always aligns to slot 0 */
-    int slot0_found = 0;
-    int slot1_found = 0;
-    int slot1_iidx = 0;
     for (i = pkt->num_insns - 1; i >= 0; i--) {
         /* Is slot0 used? */
         if (pkt->insn[i].slot == 0) {
-            int is_endloop = (pkt->insn[i].opcode == J2_endloop01);
+            bool is_endloop = (pkt->insn[i].opcode == J2_endloop01);
             is_endloop |= (pkt->insn[i].opcode == J2_endloop0);
             is_endloop |= (pkt->insn[i].opcode == J2_endloop1);
 
@@ -845,17 +845,17 @@ decode_set_slot_number(Packet *pkt)
              * slot0 for endloop
              */
             if (!is_endloop) {
-                slot0_found = 1;
+                slot0_found = true;
             }
         }
         /* Is slot1 used? */
         if (pkt->insn[i].slot == 1) {
-            slot1_found = 1;
+            slot1_found = true;
             slot1_iidx = i;
         }
     }
     /* Is slot0 empty and slot1 used? */
-    if ((slot0_found == 0) && (slot1_found == 1)) {
+    if ((!slot0_found) && slot1_found) {
         /* Then push it to slot0 */
         pkt->insn[slot1_iidx].slot = 0;
     }
@@ -873,7 +873,7 @@ int decode_packet(int max_words, const uint32_t *words, Packet *pkt,
 {
     int num_insns = 0;
     int words_read = 0;
-    int end_of_packet = 0;
+    bool end_of_packet = false;
     int new_insns = 0;
     uint32_t encoding32;
 
@@ -890,7 +890,7 @@ int decode_packet(int max_words, const uint32_t *words, Packet *pkt,
          * decode works
          */
         if (pkt->insn[num_insns].opcode == A4_ext) {
-            pkt->insn[num_insns + 1].extension_valid = 1;
+            pkt->insn[num_insns + 1].extension_valid = true;
         }
         num_insns += new_insns;
         words_read++;
@@ -913,7 +913,7 @@ int decode_packet(int max_words, const uint32_t *words, Packet *pkt,
         decode_add_endloop_insn(&pkt->insn[pkt->num_insns++], 0);
     }
     if (words_read >= 3) {
-        uint32_t has_loop0, has_loop1;
+        bool has_loop0, has_loop1;
         has_loop0 = decode_parsebits_is_loopend(words[0]);
         has_loop1 = decode_parsebits_is_loopend(words[1]);
         if (has_loop0 && has_loop1) {