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tcg/arm: Implement tcg_out_mov for vector types 

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-05-03 16:48:07 -07:00
parent 6e49fad23f
commit 2df2a8cf77
1 changed files with 46 additions and 6 deletions
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52
tcg/arm/tcg-target.c.inc
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@ -173,6 +173,8 @@ typedef enum {
/* Otherwise the assembler uses mov r0,r0 */
INSN_NOP_v4 = (COND_AL << 28) | ARITH_MOV,
INSN_VORR = 0xf2200110,
INSN_VLD1 = 0xf4200000, /* VLD1 (multiple single elements) */
INSN_VST1 = 0xf4000000, /* VST1 (multiple single elements) */
} ARMInsn;
@ -1106,6 +1108,25 @@ static uint32_t encode_vd(TCGReg rd)
return (extract32(rd, 3, 1) << 22) | (extract32(rd, 0, 3) << 13);
}
static uint32_t encode_vn(TCGReg rn)
{
tcg_debug_assert(rn >= TCG_REG_Q0);
return (extract32(rn, 3, 1) << 7) | (extract32(rn, 0, 3) << 17);
}
static uint32_t encode_vm(TCGReg rm)
{
tcg_debug_assert(rm >= TCG_REG_Q0);
return (extract32(rm, 3, 1) << 5) | (extract32(rm, 0, 3) << 1);
}
static void tcg_out_vreg3(TCGContext *s, ARMInsn insn, int q, int vece,
TCGReg d, TCGReg n, TCGReg m)
{
tcg_out32(s, insn | (vece << 20) | (q << 6) |
encode_vd(d) | encode_vn(n) | encode_vm(m));
}
static void tcg_out_vldst(TCGContext *s, ARMInsn insn,
TCGReg rd, TCGReg rn, int offset)
{
@ -2276,16 +2297,35 @@ static inline bool tcg_out_sti(TCGContext *s, TCGType type, TCGArg val,
return false;
}
static inline bool tcg_out_mov(TCGContext *s, TCGType type,
TCGReg ret, TCGReg arg)
static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
{
tcg_out_mov_reg(s, COND_AL, ret, arg);
return true;
if (ret == arg) {
return true;
}
switch (type) {
case TCG_TYPE_I32:
if (ret < TCG_REG_Q0 && arg < TCG_REG_Q0) {
tcg_out_mov_reg(s, COND_AL, ret, arg);
return true;
}
return false;
case TCG_TYPE_V64:
case TCG_TYPE_V128:
/* "VMOV D,N" is an alias for "VORR D,N,N". */
tcg_out_vreg3(s, INSN_VORR, type - TCG_TYPE_V64, 0, ret, arg, arg);
return true;
default:
g_assert_not_reached();
}
}
static inline void tcg_out_movi(TCGContext *s, TCGType type,
TCGReg ret, tcg_target_long arg)
static void tcg_out_movi(TCGContext *s, TCGType type,
TCGReg ret, tcg_target_long arg)
{
tcg_debug_assert(type == TCG_TYPE_I32);
tcg_debug_assert(ret < TCG_REG_Q0);
tcg_out_movi32(s, COND_AL, ret, arg);
}