[PULL 25/41] target/ppc: Move Condition Register logical instructions to decodetree.

[Harsh Prateek Bora <harshpb@linux.ibm.com>]

From: Shivang Upadhyay <shivangu@linux.ibm.com>

Move below instructions to decodetree specification :

        cr{and, or, xor, nand, nor, eqv, andc, orc}  : XL-form

The changes were verified by validating that the tcg ops generated by
those instructions remain the same, which were captured with the '-d
in_asm,op' flag.

Signed-off-by: Shivang Upadhyay <shivangu@linux.ibm.com>
Reviewed-by: Glenn Miles <milesg@linux.ibm.com>
Reviewed-by: Amit Machhiwal <amachhiw@linux.ibm.com>
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
Tested-by: Aniket Sahu <asahu1x@linux.ibm.com>
Link: https://lore.kernel.org/qemu-devel/20260827133010.278889-22-rathc@linux.ibm.com
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 target/ppc/insn32.decode                   | 11 ++++
 target/ppc/translate.c                     | 59 ----------------------
 target/ppc/translate/fixedpoint-impl.c.inc | 45 +++++++++++++++++
 3 files changed, 56 insertions(+), 59 deletions(-)

diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode
index 137432ed96..5e5490b169 100644
--- a/target/ppc/insn32.decode
+++ b/target/ppc/insn32.decode
@@ -516,6 +516,17 @@ CFUGED          011111 ..... ..... ..... 0011011100 -   @X
 PDEPD           011111 ..... ..... ..... 0010011100 -   @X
 PEXTD           011111 ..... ..... ..... 0010111100 -   @X
 
+## Condition Register Instructions
+
+CRAND           010011 ..... ..... ..... 0100000001 -  @X
+CROR            010011 ..... ..... ..... 0111000001 -  @X
+CRNAND          010011 ..... ..... ..... 0011100001 -  @X
+CRXOR           010011 ..... ..... ..... 0011000001 -  @X
+CRNOR           010011 ..... ..... ..... 0000100001 -  @X
+CREQV           010011 ..... ..... ..... 0100100001 -  @X
+CRANDC          010011 ..... ..... ..... 0010000001 -  @X
+CRORC           010011 ..... ..... ..... 0110100001 -  @X
+
 # Fixed-Point Hash Instructions
 
 HASHST          011111 ..... ..... ..... 1011010010 .   @X_DW
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 59e8ecb262..c5361d8db5 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -2920,53 +2920,6 @@ static inline void gen_setlr(DisasContext *ctx, target_ulong nip)
     tcg_gen_movi_tl(cpu_lr, nip);
 }
 
-/***                      Condition register logical                       ***/
-#define GEN_CRLOGIC(name, tcg_op, opc)                                        \
-static void glue(gen_, name)(DisasContext *ctx)                               \
-{                                                                             \
-    uint8_t bitmask;                                                          \
-    int sh;                                                                   \
-    TCGv_i32 t0, t1;                                                          \
-    sh = (crbD(ctx->opcode) & 0x03) - (crbA(ctx->opcode) & 0x03);             \
-    t0 = tcg_temp_new_i32();                                                  \
-    if (sh > 0)                                                               \
-        tcg_gen_shri_i32(t0, cpu_crf[crbA(ctx->opcode) >> 2], sh);            \
-    else if (sh < 0)                                                          \
-        tcg_gen_shli_i32(t0, cpu_crf[crbA(ctx->opcode) >> 2], -sh);           \
-    else                                                                      \
-        tcg_gen_mov_i32(t0, cpu_crf[crbA(ctx->opcode) >> 2]);                 \
-    t1 = tcg_temp_new_i32();                                                  \
-    sh = (crbD(ctx->opcode) & 0x03) - (crbB(ctx->opcode) & 0x03);             \
-    if (sh > 0)                                                               \
-        tcg_gen_shri_i32(t1, cpu_crf[crbB(ctx->opcode) >> 2], sh);            \
-    else if (sh < 0)                                                          \
-        tcg_gen_shli_i32(t1, cpu_crf[crbB(ctx->opcode) >> 2], -sh);           \
-    else                                                                      \
-        tcg_gen_mov_i32(t1, cpu_crf[crbB(ctx->opcode) >> 2]);                 \
-    tcg_op(t0, t0, t1);                                                       \
-    bitmask = 0x08 >> (crbD(ctx->opcode) & 0x03);                             \
-    tcg_gen_andi_i32(t0, t0, bitmask);                                        \
-    tcg_gen_andi_i32(t1, cpu_crf[crbD(ctx->opcode) >> 2], ~bitmask);          \
-    tcg_gen_or_i32(cpu_crf[crbD(ctx->opcode) >> 2], t0, t1);                  \
-}
-
-/* crand */
-GEN_CRLOGIC(crand, tcg_gen_and_i32, 0x08);
-/* crandc */
-GEN_CRLOGIC(crandc, tcg_gen_andc_i32, 0x04);
-/* creqv */
-GEN_CRLOGIC(creqv, tcg_gen_eqv_i32, 0x09);
-/* crnand */
-GEN_CRLOGIC(crnand, tcg_gen_nand_i32, 0x07);
-/* crnor */
-GEN_CRLOGIC(crnor, tcg_gen_nor_i32, 0x01);
-/* cror */
-GEN_CRLOGIC(cror, tcg_gen_or_i32, 0x0E);
-/* crorc */
-GEN_CRLOGIC(crorc, tcg_gen_orc_i32, 0x0D);
-/* crxor */
-GEN_CRLOGIC(crxor, tcg_gen_xor_i32, 0x06);
-
 /***                           System linkage                              ***/
 
 /* rfi (supervisor only) */
@@ -5109,18 +5062,6 @@ GEN_STEPX(stw, DEF_MEMOP(MO_UL), 0x1F, 0x04)
 GEN_STEPX(std, DEF_MEMOP(MO_UQ), 0x1D, 0x04)
 #endif
 
-#undef GEN_CRLOGIC
-#define GEN_CRLOGIC(name, tcg_op, opc)                                        \
-GEN_HANDLER(name, 0x13, 0x01, opc, 0x00000001, PPC_INTEGER)
-GEN_CRLOGIC(crand, tcg_gen_and_i32, 0x08),
-GEN_CRLOGIC(crandc, tcg_gen_andc_i32, 0x04),
-GEN_CRLOGIC(creqv, tcg_gen_eqv_i32, 0x09),
-GEN_CRLOGIC(crnand, tcg_gen_nand_i32, 0x07),
-GEN_CRLOGIC(crnor, tcg_gen_nor_i32, 0x01),
-GEN_CRLOGIC(cror, tcg_gen_or_i32, 0x0E),
-GEN_CRLOGIC(crorc, tcg_gen_orc_i32, 0x0D),
-GEN_CRLOGIC(crxor, tcg_gen_xor_i32, 0x06),
-
 #undef GEN_MAC_HANDLER
 #define GEN_MAC_HANDLER(name, opc2, opc3)                                     \
 GEN_HANDLER(name, 0x04, opc2, opc3, 0x00000000, PPC_405_MAC)
diff --git a/target/ppc/translate/fixedpoint-impl.c.inc b/target/ppc/translate/fixedpoint-impl.c.inc
index 11d919a21a..d0b3bda97f 100644
--- a/target/ppc/translate/fixedpoint-impl.c.inc
+++ b/target/ppc/translate/fixedpoint-impl.c.inc
@@ -539,6 +539,51 @@ static bool trans_MFCR(DisasContext *ctx, arg_MFCR *a)
     return true;
 }
 
+static bool cr_logic_common(DisasContext *ctx, arg_X *a,
+                            void (*tcg_op)(TCGv_i32, TCGv_i32, TCGv_i32))
+{
+    uint8_t bitmask;
+    int sh;
+    TCGv_i32 t0, t1;
+    sh = (a->rt & 0x03) - (a->ra & 0x03);
+    t0 = tcg_temp_new_i32();
+    t1 = tcg_temp_new_i32();
+
+    if (sh > 0) {
+        tcg_gen_shri_i32(t0, cpu_crf[a->ra >> 2], sh);
+    } else if (sh < 0) {
+        tcg_gen_shli_i32(t0, cpu_crf[a->ra >> 2], -sh);
+    } else {
+        tcg_gen_mov_i32(t0, cpu_crf[a->ra >> 2]);
+    }
+
+    sh = (a->rt & 0x03) - (a->rb & 0x03);
+    if (sh > 0) {
+        tcg_gen_shri_i32(t1, cpu_crf[a->rb >> 2], sh);
+    } else if (sh < 0) {
+        tcg_gen_shli_i32(t1, cpu_crf[a->rb >> 2], -sh);
+    } else {
+        tcg_gen_mov_i32(t1, cpu_crf[a->rb >> 2]);
+    }
+    tcg_op(t0, t0, t1);
+
+    bitmask = 0x08 >> (a->rt & 0x03);
+    tcg_gen_andi_i32(t0, t0, bitmask);
+    tcg_gen_andi_i32(t1, cpu_crf[a->rt >> 2], ~bitmask);
+    tcg_gen_or_i32(cpu_crf[a->rt >> 2], t0, t1);
+
+    return true;
+}
+
+TRANS(CRAND, cr_logic_common, tcg_gen_and_i32);
+TRANS(CROR, cr_logic_common, tcg_gen_or_i32);
+TRANS(CRXOR, cr_logic_common, tcg_gen_xor_i32);
+TRANS(CRNAND, cr_logic_common, tcg_gen_nand_i32);
+TRANS(CRNOR, cr_logic_common, tcg_gen_nor_i32);
+TRANS(CRANDC, cr_logic_common, tcg_gen_andc_i32);
+TRANS(CREQV, cr_logic_common, tcg_gen_eqv_i32);
+TRANS(CRORC, cr_logic_common, tcg_gen_orc_i32);
+
 static bool do_add_D(DisasContext *ctx, arg_D *a, bool add_ca, bool compute_ca,
                      bool compute_ov, bool compute_rc0)
 {
-- 
2.52.0