From: Matheus Ferst <matheus.fe...@eldorado.org.br>
Implement the following PowerISA v3.1 instructions:
vcmpequq: Vector Compare Equal Quadword
Suggested-by: Richard Henderson <richard.hender...@linaro.org>
Signed-off-by: Matheus Ferst <matheus.fe...@eldorado.org.br>
---
v4:
- Branchless implementation (rth)
---
target/ppc/insn32.decode | 1 +
target/ppc/translate/vmx-impl.c.inc | 36 +++++++++++++++++++++++++++++
2 files changed, 37 insertions(+)
diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode
index be9e05cc73..437a3e29e0 100644
--- a/target/ppc/insn32.decode
+++ b/target/ppc/insn32.decode
@@ -382,6 +382,7 @@ VCMPEQUB 000100 ..... ..... ..... . 0000000110 @VC
VCMPEQUH 000100 ..... ..... ..... . 0001000110 @VC
VCMPEQUW 000100 ..... ..... ..... . 0010000110 @VC
VCMPEQUD 000100 ..... ..... ..... . 0011000111 @VC
+VCMPEQUQ 000100 ..... ..... ..... . 0111000111 @VC
VCMPGTSB 000100 ..... ..... ..... . 1100000110 @VC
VCMPGTSH 000100 ..... ..... ..... . 1101000110 @VC
diff --git a/target/ppc/translate/vmx-impl.c.inc
b/target/ppc/translate/vmx-impl.c.inc
index d7f807b81d..d66a642b67 100644
--- a/target/ppc/translate/vmx-impl.c.inc
+++ b/target/ppc/translate/vmx-impl.c.inc
@@ -1107,6 +1107,42 @@ TRANS(VCMPNEZB, do_vcmpnez, MO_8)
TRANS(VCMPNEZH, do_vcmpnez, MO_16)
TRANS(VCMPNEZW, do_vcmpnez, MO_32)
+static bool trans_VCMPEQUQ(DisasContext *ctx, arg_VC *a)
+{
+ TCGv_i64 t0, t1, t2;
+
+ t0 = tcg_temp_new_i64();
+ t1 = tcg_temp_new_i64();
+ t2 = tcg_temp_new_i64();
+
+ get_avr64(t0, a->vra, true);
+ get_avr64(t1, a->vrb, true);
+ tcg_gen_xor_i64(t2, t0, t1);
+
+ get_avr64(t0, a->vra, false);
+ get_avr64(t1, a->vrb, false);
+ tcg_gen_xor_i64(t1, t0, t1);
+
+ tcg_gen_or_i64(t1, t1, t2);
+ tcg_gen_setcondi_i64(TCG_COND_EQ, t1, t1, 0);
+ tcg_gen_neg_i64(t1, t1);
+
+ set_avr64(a->vrt, t1, true);
+ set_avr64(a->vrt, t1, false);
+
+ if (a->rc) {
+ tcg_gen_extrl_i64_i32(cpu_crf[6], t1);
+ tcg_gen_andi_i32(cpu_crf[6], cpu_crf[6], 0xa);
+ tcg_gen_xori_i32(cpu_crf[6], cpu_crf[6], 0x2);
+ }
+
+ tcg_temp_free_i64(t0);
+ tcg_temp_free_i64(t1);
+ tcg_temp_free_i64(t2);
+
+ return true;
+}
+
GEN_VXRFORM(vcmpeqfp, 3, 3)
GEN_VXRFORM(vcmpgefp, 3, 7)
GEN_VXRFORM(vcmpgtfp, 3, 11)
--
2.25.1
