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authorRichard Henderson <richard.henderson@linaro.org>2019-06-23 19:04:39 +0200
committerRichard Henderson <richard.henderson@linaro.org>2019-10-14 07:09:54 -0700
commite2382972829f93104cece078e7ed4d6323189288 (patch)
tree6ca0ca8b7528d3294debaf36c699306cbbf079eb /tcg/ppc/tcg-target.inc.c
parent6ef14d7ebe81062c5cc6f1e9bd97f7882078521a (diff)
downloadqemu-e2382972829f93104cece078e7ed4d6323189288.zip
tcg/ppc: Add support for vector maximum/minimum
Add support for vector maximum/minimum using Altivec instructions VMAXSB, VMAXSH, VMAXSW, VMAXUB, VMAXUH, VMAXUW, and VMINSB, VMINSH, VMINSW, VMINUB, VMINUH, VMINUW. Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Diffstat (limited to 'tcg/ppc/tcg-target.inc.c')
-rw-r--r--tcg/ppc/tcg-target.inc.c40
1 files changed, 39 insertions, 1 deletions
diff --git a/tcg/ppc/tcg-target.inc.c b/tcg/ppc/tcg-target.inc.c
index 1a8d7dc925..6879be6f80 100644
--- a/tcg/ppc/tcg-target.inc.c
+++ b/tcg/ppc/tcg-target.inc.c
@@ -471,6 +471,19 @@ static int tcg_target_const_match(tcg_target_long val, TCGType type,
#define STVX XO31(231)
#define STVEWX XO31(199)
+#define VMAXSB VX4(258)
+#define VMAXSH VX4(322)
+#define VMAXSW VX4(386)
+#define VMAXUB VX4(2)
+#define VMAXUH VX4(66)
+#define VMAXUW VX4(130)
+#define VMINSB VX4(770)
+#define VMINSH VX4(834)
+#define VMINSW VX4(898)
+#define VMINUB VX4(514)
+#define VMINUH VX4(578)
+#define VMINUW VX4(642)
+
#define VCMPEQUB VX4(6)
#define VCMPEQUH VX4(70)
#define VCMPEQUW VX4(134)
@@ -2817,6 +2830,11 @@ int tcg_can_emit_vec_op(TCGOpcode opc, TCGType type, unsigned vece)
case INDEX_op_andc_vec:
case INDEX_op_not_vec:
return 1;
+ case INDEX_op_smax_vec:
+ case INDEX_op_smin_vec:
+ case INDEX_op_umax_vec:
+ case INDEX_op_umin_vec:
+ return vece <= MO_32;
case INDEX_op_cmp_vec:
return vece <= MO_32 ? -1 : 0;
default:
@@ -2914,7 +2932,11 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
static const uint32_t
eq_op[4] = { VCMPEQUB, VCMPEQUH, VCMPEQUW, 0 },
gts_op[4] = { VCMPGTSB, VCMPGTSH, VCMPGTSW, 0 },
- gtu_op[4] = { VCMPGTUB, VCMPGTUH, VCMPGTUW, 0 };
+ gtu_op[4] = { VCMPGTUB, VCMPGTUH, VCMPGTUW, 0 },
+ umin_op[4] = { VMINUB, VMINUH, VMINUW, 0 },
+ smin_op[4] = { VMINSB, VMINSH, VMINSW, 0 },
+ umax_op[4] = { VMAXUB, VMAXUH, VMAXUW, 0 },
+ smax_op[4] = { VMAXSB, VMAXSH, VMAXSW, 0 };
TCGType type = vecl + TCG_TYPE_V64;
TCGArg a0 = args[0], a1 = args[1], a2 = args[2];
@@ -2931,6 +2953,18 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
tcg_out_dupm_vec(s, type, vece, a0, a1, a2);
return;
+ case INDEX_op_smin_vec:
+ insn = smin_op[vece];
+ break;
+ case INDEX_op_umin_vec:
+ insn = umin_op[vece];
+ break;
+ case INDEX_op_smax_vec:
+ insn = smax_op[vece];
+ break;
+ case INDEX_op_umax_vec:
+ insn = umax_op[vece];
+ break;
case INDEX_op_and_vec:
insn = VAND;
break;
@@ -3223,6 +3257,10 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op)
case INDEX_op_andc_vec:
case INDEX_op_orc_vec:
case INDEX_op_cmp_vec:
+ case INDEX_op_smax_vec:
+ case INDEX_op_smin_vec:
+ case INDEX_op_umax_vec:
+ case INDEX_op_umin_vec:
return &v_v_v;
case INDEX_op_not_vec:
case INDEX_op_dup_vec: