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Implement 64-bit constant loads 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4561 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2008-05-24 18:09:50 +00:00
parent 26cc915cff
commit b101234a8e
1 changed files with 28 additions and 16 deletions
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44
tcg/sparc/tcg-target.c
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@ -267,22 +267,35 @@ static inline void tcg_out_sethi(TCGContext *s, int ret, uint32_t arg)
tcg_out32(s, SETHI | INSN_RD(ret) | ((arg & 0xfffffc00) >> 10));
}
static inline void tcg_out_movi_imm13(TCGContext *s, int ret, uint32_t arg)
{
tcg_out_arithi(s, ret, TCG_REG_G0, arg, ARITH_OR);
}
static inline void tcg_out_movi_imm32(TCGContext *s, int ret, uint32_t arg)
{
if (check_fit_i32(arg, 13))
tcg_out_movi_imm13(s, ret, arg);
else {
tcg_out_sethi(s, ret, arg);
if (arg & 0x3ff)
tcg_out_arithi(s, ret, ret, arg & 0x3ff, ARITH_OR);
}
}
static inline void tcg_out_movi(TCGContext *s, TCGType type,
int ret, tcg_target_long arg)
{
#if defined(__sparc_v9__) && !defined(__sparc_v8plus__)
if (!check_fit_tl(arg, 32) && (arg & ~0xffffffff) != 0)
fprintf(stderr, "unimplemented %s with constant %ld\n", __func__, arg);
if (!check_fit_tl(arg, 32) && (arg & ~0xffffffffULL) != 0) {
// XXX ret may be I5, need another temp
tcg_out_movi_imm32(s, TCG_REG_I5, arg >> 32);
tcg_out_arithi(s, TCG_REG_I5, TCG_REG_I5, 32, SHIFT_SLLX);
tcg_out_movi_imm32(s, ret, arg);
tcg_out_arith(s, ret, ret, TCG_REG_I5, ARITH_OR);
} else
#endif
if (check_fit_i32(arg, 13))
tcg_out32(s, ARITH_OR | INSN_RD(ret) | INSN_RS1(TCG_REG_G0) |
INSN_IMM13(arg));
else {
tcg_out_sethi(s, ret, arg);
if (arg & 0x3ff)
tcg_out32(s, ARITH_OR | INSN_RD(ret) | INSN_RS1(ret) |
INSN_IMM13(arg & 0x3ff));
}
tcg_out_movi_imm32(s, ret, arg);
}
static inline void tcg_out_ld_raw(TCGContext *s, int ret,
@ -296,15 +309,14 @@ static inline void tcg_out_ld_raw(TCGContext *s, int ret,
static inline void tcg_out_ld_ptr(TCGContext *s, int ret,
tcg_target_long arg)
{
if (!check_fit_tl(arg, 10))
tcg_out_movi(s, TCG_TYPE_PTR, ret, arg & ~0x3ffULL);
#if defined(__sparc_v9__) && !defined(__sparc_v8plus__)
if (!check_fit_tl(arg, 32) && (arg & ~0xffffffff) != 0)
fprintf(stderr, "unimplemented %s with offset %ld\n", __func__, arg);
if (!check_fit_i32(arg, 13))
tcg_out_sethi(s, ret, arg);
tcg_out32(s, LDX | INSN_RD(ret) | INSN_RS1(ret) |
INSN_IMM13(arg & 0x3ff));
#else
tcg_out_ld_raw(s, ret, arg);
tcg_out32(s, LDUW | INSN_RD(ret) | INSN_RS1(ret) |
INSN_IMM13(arg & 0x3ff));
#endif
}