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xemu/target/hexagon/gen_tcg.h
Taylor Simpson 15fc6badbd Hexagon (target/hexagon) fix bug in mem_noshuf load exception 
The semantics of a mem_noshuf packet are that the store effectively
happens before the load.  However, in cases where the load raises an
exception, we cannot simply execute the store first.

This change adds a probe to check that the load will not raise an
exception before executing the store.

If the load is predicated, this requires special handling.  We check
the condition before performing the probe.  Since, we need the EA to
perform the check, we move the GET_EA portion inside CHECK_NOSHUF_PRED.

Test case added in tests/tcg/hexagon/mem_noshuf_exception.c

Suggested-by: Alessandro Di Federico <ale@rev.ng>
Suggested-by: Anton Johansson <anjo@rev.ng>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220707210546.15985-3-tsimpson@quicinc.com>
2022-07-19 14:20:08 -07:00

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/*
* Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef HEXAGON_GEN_TCG_H
#define HEXAGON_GEN_TCG_H
/*
* Here is a primer to understand the tag names for load/store instructions
*
* Data types
* b signed byte r0 = memb(r2+#0)
* ub unsigned byte r0 = memub(r2+#0)
* h signed half word (16 bits) r0 = memh(r2+#0)
* uh unsigned half word r0 = memuh(r2+#0)
* i integer (32 bits) r0 = memw(r2+#0)
* d double word (64 bits) r1:0 = memd(r2+#0)
*
* Addressing modes
* _io indirect with offset r0 = memw(r1+#4)
* _ur absolute with register offset r0 = memw(r1<<#4+##variable)
* _rr indirect with register offset r0 = memw(r1+r4<<#2)
* gp global pointer relative r0 = memw(gp+#200)
* _sp stack pointer relative r0 = memw(r29+#12)
* _ap absolute set r0 = memw(r1=##variable)
* _pr post increment register r0 = memw(r1++m1)
* _pbr post increment bit reverse r0 = memw(r1++m1:brev)
* _pi post increment immediate r0 = memb(r1++#1)
* _pci post increment circular immediate r0 = memw(r1++#4:circ(m0))
* _pcr post increment circular register r0 = memw(r1++I:circ(m0))
*/
/* Macros for complex addressing modes */
#define GET_EA_ap \
do { \
fEA_IMM(UiV); \
tcg_gen_movi_tl(ReV, UiV); \
} while (0)
#define GET_EA_pr \
do { \
fEA_REG(RxV); \
fPM_M(RxV, MuV); \
} while (0)
#define GET_EA_pbr \
do { \
gen_helper_fbrev(EA, RxV); \
tcg_gen_add_tl(RxV, RxV, MuV); \
} while (0)
#define GET_EA_pi \
do { \
fEA_REG(RxV); \
fPM_I(RxV, siV); \
} while (0)
#define GET_EA_pci \
do { \
TCGv tcgv_siV = tcg_constant_tl(siV); \
tcg_gen_mov_tl(EA, RxV); \
gen_helper_fcircadd(RxV, RxV, tcgv_siV, MuV, \
hex_gpr[HEX_REG_CS0 + MuN]); \
} while (0)
#define GET_EA_pcr(SHIFT) \
do { \
TCGv ireg = tcg_temp_new(); \
tcg_gen_mov_tl(EA, RxV); \
gen_read_ireg(ireg, MuV, (SHIFT)); \
gen_helper_fcircadd(RxV, RxV, ireg, MuV, hex_gpr[HEX_REG_CS0 + MuN]); \
tcg_temp_free(ireg); \
} while (0)
/* Instructions with multiple definitions */
#define fGEN_TCG_LOAD_AP(RES, SIZE, SIGN) \
do { \
fMUST_IMMEXT(UiV); \
fEA_IMM(UiV); \
fLOAD(1, SIZE, SIGN, EA, RES); \
tcg_gen_movi_tl(ReV, UiV); \
} while (0)
#define fGEN_TCG_L4_loadrub_ap(SHORTCODE) \
fGEN_TCG_LOAD_AP(RdV, 1, u)
#define fGEN_TCG_L4_loadrb_ap(SHORTCODE) \
fGEN_TCG_LOAD_AP(RdV, 1, s)
#define fGEN_TCG_L4_loadruh_ap(SHORTCODE) \
fGEN_TCG_LOAD_AP(RdV, 2, u)
#define fGEN_TCG_L4_loadrh_ap(SHORTCODE) \
fGEN_TCG_LOAD_AP(RdV, 2, s)
#define fGEN_TCG_L4_loadri_ap(SHORTCODE) \
fGEN_TCG_LOAD_AP(RdV, 4, u)
#define fGEN_TCG_L4_loadrd_ap(SHORTCODE) \
fGEN_TCG_LOAD_AP(RddV, 8, u)
#define fGEN_TCG_L2_loadrub_pci(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrb_pci(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadruh_pci(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrh_pci(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadri_pci(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrd_pci(SHORTCODE) SHORTCODE
#define fGEN_TCG_LOAD_pcr(SHIFT, LOAD) \
do { \
TCGv ireg = tcg_temp_new(); \
tcg_gen_mov_tl(EA, RxV); \
gen_read_ireg(ireg, MuV, SHIFT); \
gen_helper_fcircadd(RxV, RxV, ireg, MuV, hex_gpr[HEX_REG_CS0 + MuN]); \
LOAD; \
tcg_temp_free(ireg); \
} while (0)
#define fGEN_TCG_L2_loadrub_pcr(SHORTCODE) \
fGEN_TCG_LOAD_pcr(0, fLOAD(1, 1, u, EA, RdV))
#define fGEN_TCG_L2_loadrb_pcr(SHORTCODE) \
fGEN_TCG_LOAD_pcr(0, fLOAD(1, 1, s, EA, RdV))
#define fGEN_TCG_L2_loadruh_pcr(SHORTCODE) \
fGEN_TCG_LOAD_pcr(1, fLOAD(1, 2, u, EA, RdV))
#define fGEN_TCG_L2_loadrh_pcr(SHORTCODE) \
fGEN_TCG_LOAD_pcr(1, fLOAD(1, 2, s, EA, RdV))
#define fGEN_TCG_L2_loadri_pcr(SHORTCODE) \
fGEN_TCG_LOAD_pcr(2, fLOAD(1, 4, u, EA, RdV))
#define fGEN_TCG_L2_loadrd_pcr(SHORTCODE) \
fGEN_TCG_LOAD_pcr(3, fLOAD(1, 8, u, EA, RddV))
#define fGEN_TCG_L2_loadrub_pr(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrub_pbr(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrub_pi(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrb_pr(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrb_pbr(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrb_pi(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadruh_pr(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadruh_pbr(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadruh_pi(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrh_pr(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrh_pbr(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrh_pi(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadri_pr(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadri_pbr(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadri_pi(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrd_pr(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrd_pbr(SHORTCODE) SHORTCODE
#define fGEN_TCG_L2_loadrd_pi(SHORTCODE) SHORTCODE
/*
* These instructions load 2 bytes and places them in
* two halves of the destination register.
* The GET_EA macro determines the addressing mode.
* The SIGN argument determines whether to zero-extend or
* sign-extend.
*/
#define fGEN_TCG_loadbXw2(GET_EA, SIGN) \
do { \
TCGv tmp = tcg_temp_new(); \
TCGv byte = tcg_temp_new(); \
GET_EA; \
fLOAD(1, 2, u, EA, tmp); \
tcg_gen_movi_tl(RdV, 0); \
for (int i = 0; i < 2; i++) { \
gen_set_half(i, RdV, gen_get_byte(byte, i, tmp, (SIGN))); \
} \
tcg_temp_free(tmp); \
tcg_temp_free(byte); \
} while (0)
#define fGEN_TCG_L2_loadbzw2_io(SHORTCODE) \
fGEN_TCG_loadbXw2(fEA_RI(RsV, siV), false)
#define fGEN_TCG_L4_loadbzw2_ur(SHORTCODE) \
fGEN_TCG_loadbXw2(fEA_IRs(UiV, RtV, uiV), false)
#define fGEN_TCG_L2_loadbsw2_io(SHORTCODE) \
fGEN_TCG_loadbXw2(fEA_RI(RsV, siV), true)
#define fGEN_TCG_L4_loadbsw2_ur(SHORTCODE) \
fGEN_TCG_loadbXw2(fEA_IRs(UiV, RtV, uiV), true)
#define fGEN_TCG_L4_loadbzw2_ap(SHORTCODE) \
fGEN_TCG_loadbXw2(GET_EA_ap, false)
#define fGEN_TCG_L2_loadbzw2_pr(SHORTCODE) \
fGEN_TCG_loadbXw2(GET_EA_pr, false)
#define fGEN_TCG_L2_loadbzw2_pbr(SHORTCODE) \
fGEN_TCG_loadbXw2(GET_EA_pbr, false)
#define fGEN_TCG_L2_loadbzw2_pi(SHORTCODE) \
fGEN_TCG_loadbXw2(GET_EA_pi, false)
#define fGEN_TCG_L4_loadbsw2_ap(SHORTCODE) \
fGEN_TCG_loadbXw2(GET_EA_ap, true)
#define fGEN_TCG_L2_loadbsw2_pr(SHORTCODE) \
fGEN_TCG_loadbXw2(GET_EA_pr, true)
#define fGEN_TCG_L2_loadbsw2_pbr(SHORTCODE) \
fGEN_TCG_loadbXw2(GET_EA_pbr, true)
#define fGEN_TCG_L2_loadbsw2_pi(SHORTCODE) \
fGEN_TCG_loadbXw2(GET_EA_pi, true)
#define fGEN_TCG_L2_loadbzw2_pci(SHORTCODE) \
fGEN_TCG_loadbXw2(GET_EA_pci, false)
#define fGEN_TCG_L2_loadbsw2_pci(SHORTCODE) \
fGEN_TCG_loadbXw2(GET_EA_pci, true)
#define fGEN_TCG_L2_loadbzw2_pcr(SHORTCODE) \
fGEN_TCG_loadbXw2(GET_EA_pcr(1), false)
#define fGEN_TCG_L2_loadbsw2_pcr(SHORTCODE) \
fGEN_TCG_loadbXw2(GET_EA_pcr(1), true)
/*
* These instructions load 4 bytes and places them in
* four halves of the destination register pair.
* The GET_EA macro determines the addressing mode.
* The SIGN argument determines whether to zero-extend or
* sign-extend.
*/
#define fGEN_TCG_loadbXw4(GET_EA, SIGN) \
do { \
TCGv tmp = tcg_temp_new(); \
TCGv byte = tcg_temp_new(); \
GET_EA; \
fLOAD(1, 4, u, EA, tmp); \
tcg_gen_movi_i64(RddV, 0); \
for (int i = 0; i < 4; i++) { \
gen_set_half_i64(i, RddV, gen_get_byte(byte, i, tmp, (SIGN))); \
} \
tcg_temp_free(tmp); \
tcg_temp_free(byte); \
} while (0)
#define fGEN_TCG_L2_loadbzw4_io(SHORTCODE) \
fGEN_TCG_loadbXw4(fEA_RI(RsV, siV), false)
#define fGEN_TCG_L4_loadbzw4_ur(SHORTCODE) \
fGEN_TCG_loadbXw4(fEA_IRs(UiV, RtV, uiV), false)
#define fGEN_TCG_L2_loadbsw4_io(SHORTCODE) \
fGEN_TCG_loadbXw4(fEA_RI(RsV, siV), true)
#define fGEN_TCG_L4_loadbsw4_ur(SHORTCODE) \
fGEN_TCG_loadbXw4(fEA_IRs(UiV, RtV, uiV), true)
#define fGEN_TCG_L2_loadbzw4_pci(SHORTCODE) \
fGEN_TCG_loadbXw4(GET_EA_pci, false)
#define fGEN_TCG_L2_loadbsw4_pci(SHORTCODE) \
fGEN_TCG_loadbXw4(GET_EA_pci, true)
#define fGEN_TCG_L2_loadbzw4_pcr(SHORTCODE) \
fGEN_TCG_loadbXw4(GET_EA_pcr(2), false)
#define fGEN_TCG_L2_loadbsw4_pcr(SHORTCODE) \
fGEN_TCG_loadbXw4(GET_EA_pcr(2), true)
#define fGEN_TCG_L4_loadbzw4_ap(SHORTCODE) \
fGEN_TCG_loadbXw4(GET_EA_ap, false)
#define fGEN_TCG_L2_loadbzw4_pr(SHORTCODE) \
fGEN_TCG_loadbXw4(GET_EA_pr, false)
#define fGEN_TCG_L2_loadbzw4_pbr(SHORTCODE) \
fGEN_TCG_loadbXw4(GET_EA_pbr, false)
#define fGEN_TCG_L2_loadbzw4_pi(SHORTCODE) \
fGEN_TCG_loadbXw4(GET_EA_pi, false)
#define fGEN_TCG_L4_loadbsw4_ap(SHORTCODE) \
fGEN_TCG_loadbXw4(GET_EA_ap, true)
#define fGEN_TCG_L2_loadbsw4_pr(SHORTCODE) \
fGEN_TCG_loadbXw4(GET_EA_pr, true)
#define fGEN_TCG_L2_loadbsw4_pbr(SHORTCODE) \
fGEN_TCG_loadbXw4(GET_EA_pbr, true)
#define fGEN_TCG_L2_loadbsw4_pi(SHORTCODE) \
fGEN_TCG_loadbXw4(GET_EA_pi, true)
/*
* These instructions load a half word, shift the destination right by 16 bits
* and place the loaded value in the high half word of the destination pair.
* The GET_EA macro determines the addressing mode.
*/
#define fGEN_TCG_loadalignh(GET_EA) \
do { \
TCGv tmp = tcg_temp_new(); \
TCGv_i64 tmp_i64 = tcg_temp_new_i64(); \
GET_EA; \
fLOAD(1, 2, u, EA, tmp); \
tcg_gen_extu_i32_i64(tmp_i64, tmp); \
tcg_gen_shri_i64(RyyV, RyyV, 16); \
tcg_gen_deposit_i64(RyyV, RyyV, tmp_i64, 48, 16); \
tcg_temp_free(tmp); \
tcg_temp_free_i64(tmp_i64); \
} while (0)
#define fGEN_TCG_L4_loadalignh_ur(SHORTCODE) \
fGEN_TCG_loadalignh(fEA_IRs(UiV, RtV, uiV))
#define fGEN_TCG_L2_loadalignh_io(SHORTCODE) \
fGEN_TCG_loadalignh(fEA_RI(RsV, siV))
#define fGEN_TCG_L2_loadalignh_pci(SHORTCODE) \
fGEN_TCG_loadalignh(GET_EA_pci)
#define fGEN_TCG_L2_loadalignh_pcr(SHORTCODE) \
fGEN_TCG_loadalignh(GET_EA_pcr(1))
#define fGEN_TCG_L4_loadalignh_ap(SHORTCODE) \
fGEN_TCG_loadalignh(GET_EA_ap)
#define fGEN_TCG_L2_loadalignh_pr(SHORTCODE) \
fGEN_TCG_loadalignh(GET_EA_pr)
#define fGEN_TCG_L2_loadalignh_pbr(SHORTCODE) \
fGEN_TCG_loadalignh(GET_EA_pbr)
#define fGEN_TCG_L2_loadalignh_pi(SHORTCODE) \
fGEN_TCG_loadalignh(GET_EA_pi)
/* Same as above, but loads a byte instead of half word */
#define fGEN_TCG_loadalignb(GET_EA) \
do { \
TCGv tmp = tcg_temp_new(); \
TCGv_i64 tmp_i64 = tcg_temp_new_i64(); \
GET_EA; \
fLOAD(1, 1, u, EA, tmp); \
tcg_gen_extu_i32_i64(tmp_i64, tmp); \
tcg_gen_shri_i64(RyyV, RyyV, 8); \
tcg_gen_deposit_i64(RyyV, RyyV, tmp_i64, 56, 8); \
tcg_temp_free(tmp); \
tcg_temp_free_i64(tmp_i64); \
} while (0)
#define fGEN_TCG_L2_loadalignb_io(SHORTCODE) \
fGEN_TCG_loadalignb(fEA_RI(RsV, siV))
#define fGEN_TCG_L4_loadalignb_ur(SHORTCODE) \
fGEN_TCG_loadalignb(fEA_IRs(UiV, RtV, uiV))
#define fGEN_TCG_L2_loadalignb_pci(SHORTCODE) \
fGEN_TCG_loadalignb(GET_EA_pci)
#define fGEN_TCG_L2_loadalignb_pcr(SHORTCODE) \
fGEN_TCG_loadalignb(GET_EA_pcr(0))
#define fGEN_TCG_L4_loadalignb_ap(SHORTCODE) \
fGEN_TCG_loadalignb(GET_EA_ap)
#define fGEN_TCG_L2_loadalignb_pr(SHORTCODE) \
fGEN_TCG_loadalignb(GET_EA_pr)
#define fGEN_TCG_L2_loadalignb_pbr(SHORTCODE) \
fGEN_TCG_loadalignb(GET_EA_pbr)
#define fGEN_TCG_L2_loadalignb_pi(SHORTCODE) \
fGEN_TCG_loadalignb(GET_EA_pi)
/*
* Predicated loads
* Here is a primer to understand the tag names
*
* Predicate used
* t true "old" value if (p0) r0 = memb(r2+#0)
* f false "old" value if (!p0) r0 = memb(r2+#0)
* tnew true "new" value if (p0.new) r0 = memb(r2+#0)
* fnew false "new" value if (!p0.new) r0 = memb(r2+#0)
*/
#define fGEN_TCG_PRED_LOAD(GET_EA, PRED, SIZE, SIGN) \
do { \
TCGv LSB = tcg_temp_local_new(); \
TCGLabel *label = gen_new_label(); \
tcg_gen_movi_tl(EA, 0); \
PRED; \
CHECK_NOSHUF_PRED(GET_EA, SIZE, LSB); \
PRED_LOAD_CANCEL(LSB, EA); \
tcg_gen_movi_tl(RdV, 0); \
tcg_gen_brcondi_tl(TCG_COND_EQ, LSB, 0, label); \
fLOAD(1, SIZE, SIGN, EA, RdV); \
gen_set_label(label); \
tcg_temp_free(LSB); \
} while (0)
#define fGEN_TCG_L2_ploadrubt_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLD(PtV), 1, u)
#define fGEN_TCG_L2_ploadrubf_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLDNOT(PtV), 1, u)
#define fGEN_TCG_L2_ploadrubtnew_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEW(PtN), 1, u)
#define fGEN_TCG_L2_ploadrubfnew_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEWNOT(PtN), 1, u)
#define fGEN_TCG_L2_ploadrbt_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLD(PtV), 1, s)
#define fGEN_TCG_L2_ploadrbf_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLDNOT(PtV), 1, s)
#define fGEN_TCG_L2_ploadrbtnew_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEW(PtN), 1, s)
#define fGEN_TCG_L2_ploadrbfnew_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD({ fEA_REG(RxV); fPM_I(RxV, siV); }, \
fLSBNEWNOT(PtN), 1, s)
#define fGEN_TCG_L2_ploadruht_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLD(PtV), 2, u)
#define fGEN_TCG_L2_ploadruhf_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLDNOT(PtV), 2, u)
#define fGEN_TCG_L2_ploadruhtnew_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEW(PtN), 2, u)
#define fGEN_TCG_L2_ploadruhfnew_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEWNOT(PtN), 2, u)
#define fGEN_TCG_L2_ploadrht_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLD(PtV), 2, s)
#define fGEN_TCG_L2_ploadrhf_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLDNOT(PtV), 2, s)
#define fGEN_TCG_L2_ploadrhtnew_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEW(PtN), 2, s)
#define fGEN_TCG_L2_ploadrhfnew_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEWNOT(PtN), 2, s)
#define fGEN_TCG_L2_ploadrit_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLD(PtV), 4, u)
#define fGEN_TCG_L2_ploadrif_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBOLDNOT(PtV), 4, u)
#define fGEN_TCG_L2_ploadritnew_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEW(PtN), 4, u)
#define fGEN_TCG_L2_ploadrifnew_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD(GET_EA_pi, fLSBNEWNOT(PtN), 4, u)
/* Predicated loads into a register pair */
#define fGEN_TCG_PRED_LOAD_PAIR(GET_EA, PRED) \
do { \
TCGv LSB = tcg_temp_local_new(); \
TCGLabel *label = gen_new_label(); \
tcg_gen_movi_tl(EA, 0); \
PRED; \
CHECK_NOSHUF_PRED(GET_EA, 8, LSB); \
PRED_LOAD_CANCEL(LSB, EA); \
tcg_gen_movi_i64(RddV, 0); \
tcg_gen_brcondi_tl(TCG_COND_EQ, LSB, 0, label); \
fLOAD(1, 8, u, EA, RddV); \
gen_set_label(label); \
tcg_temp_free(LSB); \
} while (0)
#define fGEN_TCG_L2_ploadrdt_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD_PAIR(GET_EA_pi, fLSBOLD(PtV))
#define fGEN_TCG_L2_ploadrdf_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD_PAIR(GET_EA_pi, fLSBOLDNOT(PtV))
#define fGEN_TCG_L2_ploadrdtnew_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD_PAIR(GET_EA_pi, fLSBNEW(PtN))
#define fGEN_TCG_L2_ploadrdfnew_pi(SHORTCODE) \
fGEN_TCG_PRED_LOAD_PAIR(GET_EA_pi, fLSBNEWNOT(PtN))
/* load-locked and store-locked */
#define fGEN_TCG_L2_loadw_locked(SHORTCODE) \
SHORTCODE
#define fGEN_TCG_L4_loadd_locked(SHORTCODE) \
SHORTCODE
#define fGEN_TCG_S2_storew_locked(SHORTCODE) \
SHORTCODE
#define fGEN_TCG_S4_stored_locked(SHORTCODE) \
SHORTCODE
#define fGEN_TCG_STORE(SHORTCODE) \
do { \
TCGv HALF = tcg_temp_new(); \
TCGv BYTE = tcg_temp_new(); \
SHORTCODE; \
tcg_temp_free(HALF); \
tcg_temp_free(BYTE); \
} while (0)
#define fGEN_TCG_STORE_pcr(SHIFT, STORE) \
do { \
TCGv ireg = tcg_temp_new(); \
TCGv HALF = tcg_temp_new(); \
TCGv BYTE = tcg_temp_new(); \
tcg_gen_mov_tl(EA, RxV); \
gen_read_ireg(ireg, MuV, SHIFT); \
gen_helper_fcircadd(RxV, RxV, ireg, MuV, hex_gpr[HEX_REG_CS0 + MuN]); \
STORE; \
tcg_temp_free(ireg); \
tcg_temp_free(HALF); \
tcg_temp_free(BYTE); \
} while (0)
#define fGEN_TCG_S2_storerb_pbr(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerb_pci(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerb_pcr(SHORTCODE) \
fGEN_TCG_STORE_pcr(0, fSTORE(1, 1, EA, fGETBYTE(0, RtV)))
#define fGEN_TCG_S2_storerh_pbr(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerh_pci(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerh_pcr(SHORTCODE) \
fGEN_TCG_STORE_pcr(1, fSTORE(1, 2, EA, fGETHALF(0, RtV)))
#define fGEN_TCG_S2_storerf_pbr(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerf_pci(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerf_pcr(SHORTCODE) \
fGEN_TCG_STORE_pcr(1, fSTORE(1, 2, EA, fGETHALF(1, RtV)))
#define fGEN_TCG_S2_storeri_pbr(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storeri_pci(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storeri_pcr(SHORTCODE) \
fGEN_TCG_STORE_pcr(2, fSTORE(1, 4, EA, RtV))
#define fGEN_TCG_S2_storerd_pbr(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerd_pci(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerd_pcr(SHORTCODE) \
fGEN_TCG_STORE_pcr(3, fSTORE(1, 8, EA, RttV))
#define fGEN_TCG_S2_storerbnew_pbr(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerbnew_pci(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerbnew_pcr(SHORTCODE) \
fGEN_TCG_STORE_pcr(0, fSTORE(1, 1, EA, fGETBYTE(0, NtN)))
#define fGEN_TCG_S2_storerhnew_pbr(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerhnew_pci(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerhnew_pcr(SHORTCODE) \
fGEN_TCG_STORE_pcr(1, fSTORE(1, 2, EA, fGETHALF(0, NtN)))
#define fGEN_TCG_S2_storerinew_pbr(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerinew_pci(SHORTCODE) \
fGEN_TCG_STORE(SHORTCODE)
#define fGEN_TCG_S2_storerinew_pcr(SHORTCODE) \
fGEN_TCG_STORE_pcr(2, fSTORE(1, 4, EA, NtN))
/*
* Mathematical operations with more than one definition require
* special handling
*/
#define fGEN_TCG_A5_ACS(SHORTCODE) \
do { \
gen_helper_vacsh_pred(PeV, cpu_env, RxxV, RssV, RttV); \
gen_helper_vacsh_val(RxxV, cpu_env, RxxV, RssV, RttV); \
} while (0)
/*
* Approximate reciprocal
* r3,p1 = sfrecipa(r0, r1)
*
* The helper packs the 2 32-bit results into a 64-bit value,
* so unpack them into the proper results.
*/
#define fGEN_TCG_F2_sfrecipa(SHORTCODE) \
do { \
TCGv_i64 tmp = tcg_temp_new_i64(); \
gen_helper_sfrecipa(tmp, cpu_env, RsV, RtV); \
tcg_gen_extrh_i64_i32(RdV, tmp); \
tcg_gen_extrl_i64_i32(PeV, tmp); \
tcg_temp_free_i64(tmp); \
} while (0)
/*
* Approximation of the reciprocal square root
* r1,p0 = sfinvsqrta(r0)
*
* The helper packs the 2 32-bit results into a 64-bit value,
* so unpack them into the proper results.
*/
#define fGEN_TCG_F2_sfinvsqrta(SHORTCODE) \
do { \
TCGv_i64 tmp = tcg_temp_new_i64(); \
gen_helper_sfinvsqrta(tmp, cpu_env, RsV); \
tcg_gen_extrh_i64_i32(RdV, tmp); \
tcg_gen_extrl_i64_i32(PeV, tmp); \
tcg_temp_free_i64(tmp); \
} while (0)
/*
* Add or subtract with carry.
* Predicate register is used as an extra input and output.
* r5:4 = add(r1:0, r3:2, p1):carry
*/
#define fGEN_TCG_A4_addp_c(SHORTCODE) \
do { \
TCGv_i64 carry = tcg_temp_new_i64(); \
TCGv_i64 zero = tcg_constant_i64(0); \
tcg_gen_extu_i32_i64(carry, PxV); \
tcg_gen_andi_i64(carry, carry, 1); \
tcg_gen_add2_i64(RddV, carry, RssV, zero, carry, zero); \
tcg_gen_add2_i64(RddV, carry, RddV, carry, RttV, zero); \
tcg_gen_extrl_i64_i32(PxV, carry); \
gen_8bitsof(PxV, PxV); \
tcg_temp_free_i64(carry); \
} while (0)
/* r5:4 = sub(r1:0, r3:2, p1):carry */
#define fGEN_TCG_A4_subp_c(SHORTCODE) \
do { \
TCGv_i64 carry = tcg_temp_new_i64(); \
TCGv_i64 zero = tcg_constant_i64(0); \
TCGv_i64 not_RttV = tcg_temp_new_i64(); \
tcg_gen_extu_i32_i64(carry, PxV); \
tcg_gen_andi_i64(carry, carry, 1); \
tcg_gen_not_i64(not_RttV, RttV); \
tcg_gen_add2_i64(RddV, carry, RssV, zero, carry, zero); \
tcg_gen_add2_i64(RddV, carry, RddV, carry, not_RttV, zero); \
tcg_gen_extrl_i64_i32(PxV, carry); \
gen_8bitsof(PxV, PxV); \
tcg_temp_free_i64(carry); \
tcg_temp_free_i64(not_RttV); \
} while (0)
/*
* Compare each of the 8 unsigned bytes
* The minimum is placed in each byte of the destination.
* Each bit of the predicate is set true if the bit from the first operand
* is greater than the bit from the second operand.
* r5:4,p1 = vminub(r1:0, r3:2)
*/
#define fGEN_TCG_A6_vminub_RdP(SHORTCODE) \
do { \
TCGv left = tcg_temp_new(); \
TCGv right = tcg_temp_new(); \
TCGv tmp = tcg_temp_new(); \
tcg_gen_movi_tl(PeV, 0); \
tcg_gen_movi_i64(RddV, 0); \
for (int i = 0; i < 8; i++) { \
gen_get_byte_i64(left, i, RttV, false); \
gen_get_byte_i64(right, i, RssV, false); \
tcg_gen_setcond_tl(TCG_COND_GT, tmp, left, right); \
tcg_gen_deposit_tl(PeV, PeV, tmp, i, 1); \
tcg_gen_umin_tl(tmp, left, right); \
gen_set_byte_i64(i, RddV, tmp); \
} \
tcg_temp_free(left); \
tcg_temp_free(right); \
tcg_temp_free(tmp); \
} while (0)
/* Floating point */
#define fGEN_TCG_F2_conv_sf2df(SHORTCODE) \
gen_helper_conv_sf2df(RddV, cpu_env, RsV)
#define fGEN_TCG_F2_conv_df2sf(SHORTCODE) \
gen_helper_conv_df2sf(RdV, cpu_env, RssV)
#define fGEN_TCG_F2_conv_uw2sf(SHORTCODE) \
gen_helper_conv_uw2sf(RdV, cpu_env, RsV)
#define fGEN_TCG_F2_conv_uw2df(SHORTCODE) \
gen_helper_conv_uw2df(RddV, cpu_env, RsV)
#define fGEN_TCG_F2_conv_w2sf(SHORTCODE) \
gen_helper_conv_w2sf(RdV, cpu_env, RsV)
#define fGEN_TCG_F2_conv_w2df(SHORTCODE) \
gen_helper_conv_w2df(RddV, cpu_env, RsV)
#define fGEN_TCG_F2_conv_ud2sf(SHORTCODE) \
gen_helper_conv_ud2sf(RdV, cpu_env, RssV)
#define fGEN_TCG_F2_conv_ud2df(SHORTCODE) \
gen_helper_conv_ud2df(RddV, cpu_env, RssV)
#define fGEN_TCG_F2_conv_d2sf(SHORTCODE) \
gen_helper_conv_d2sf(RdV, cpu_env, RssV)
#define fGEN_TCG_F2_conv_d2df(SHORTCODE) \
gen_helper_conv_d2df(RddV, cpu_env, RssV)
#define fGEN_TCG_F2_conv_sf2uw(SHORTCODE) \
gen_helper_conv_sf2uw(RdV, cpu_env, RsV)
#define fGEN_TCG_F2_conv_sf2w(SHORTCODE) \
gen_helper_conv_sf2w(RdV, cpu_env, RsV)
#define fGEN_TCG_F2_conv_sf2ud(SHORTCODE) \
gen_helper_conv_sf2ud(RddV, cpu_env, RsV)
#define fGEN_TCG_F2_conv_sf2d(SHORTCODE) \
gen_helper_conv_sf2d(RddV, cpu_env, RsV)
#define fGEN_TCG_F2_conv_df2uw(SHORTCODE) \
gen_helper_conv_df2uw(RdV, cpu_env, RssV)
#define fGEN_TCG_F2_conv_df2w(SHORTCODE) \
gen_helper_conv_df2w(RdV, cpu_env, RssV)
#define fGEN_TCG_F2_conv_df2ud(SHORTCODE) \
gen_helper_conv_df2ud(RddV, cpu_env, RssV)
#define fGEN_TCG_F2_conv_df2d(SHORTCODE) \
gen_helper_conv_df2d(RddV, cpu_env, RssV)
#define fGEN_TCG_F2_conv_sf2uw_chop(SHORTCODE) \
gen_helper_conv_sf2uw_chop(RdV, cpu_env, RsV)
#define fGEN_TCG_F2_conv_sf2w_chop(SHORTCODE) \
gen_helper_conv_sf2w_chop(RdV, cpu_env, RsV)
#define fGEN_TCG_F2_conv_sf2ud_chop(SHORTCODE) \
gen_helper_conv_sf2ud_chop(RddV, cpu_env, RsV)
#define fGEN_TCG_F2_conv_sf2d_chop(SHORTCODE) \
gen_helper_conv_sf2d_chop(RddV, cpu_env, RsV)
#define fGEN_TCG_F2_conv_df2uw_chop(SHORTCODE) \
gen_helper_conv_df2uw_chop(RdV, cpu_env, RssV)
#define fGEN_TCG_F2_conv_df2w_chop(SHORTCODE) \
gen_helper_conv_df2w_chop(RdV, cpu_env, RssV)
#define fGEN_TCG_F2_conv_df2ud_chop(SHORTCODE) \
gen_helper_conv_df2ud_chop(RddV, cpu_env, RssV)
#define fGEN_TCG_F2_conv_df2d_chop(SHORTCODE) \
gen_helper_conv_df2d_chop(RddV, cpu_env, RssV)
#define fGEN_TCG_F2_sfadd(SHORTCODE) \
gen_helper_sfadd(RdV, cpu_env, RsV, RtV)
#define fGEN_TCG_F2_sfsub(SHORTCODE) \
gen_helper_sfsub(RdV, cpu_env, RsV, RtV)
#define fGEN_TCG_F2_sfcmpeq(SHORTCODE) \
gen_helper_sfcmpeq(PdV, cpu_env, RsV, RtV)
#define fGEN_TCG_F2_sfcmpgt(SHORTCODE) \
gen_helper_sfcmpgt(PdV, cpu_env, RsV, RtV)
#define fGEN_TCG_F2_sfcmpge(SHORTCODE) \
gen_helper_sfcmpge(PdV, cpu_env, RsV, RtV)
#define fGEN_TCG_F2_sfcmpuo(SHORTCODE) \
gen_helper_sfcmpuo(PdV, cpu_env, RsV, RtV)
#define fGEN_TCG_F2_sfmax(SHORTCODE) \
gen_helper_sfmax(RdV, cpu_env, RsV, RtV)
#define fGEN_TCG_F2_sfmin(SHORTCODE) \
gen_helper_sfmin(RdV, cpu_env, RsV, RtV)
#define fGEN_TCG_F2_sfclass(SHORTCODE) \
do { \
TCGv imm = tcg_constant_tl(uiV); \
gen_helper_sfclass(PdV, cpu_env, RsV, imm); \
} while (0)
#define fGEN_TCG_F2_sffixupn(SHORTCODE) \
gen_helper_sffixupn(RdV, cpu_env, RsV, RtV)
#define fGEN_TCG_F2_sffixupd(SHORTCODE) \
gen_helper_sffixupd(RdV, cpu_env, RsV, RtV)
#define fGEN_TCG_F2_sffixupr(SHORTCODE) \
gen_helper_sffixupr(RdV, cpu_env, RsV)
#define fGEN_TCG_F2_dfadd(SHORTCODE) \
gen_helper_dfadd(RddV, cpu_env, RssV, RttV)
#define fGEN_TCG_F2_dfsub(SHORTCODE) \
gen_helper_dfsub(RddV, cpu_env, RssV, RttV)
#define fGEN_TCG_F2_dfmax(SHORTCODE) \
gen_helper_dfmax(RddV, cpu_env, RssV, RttV)
#define fGEN_TCG_F2_dfmin(SHORTCODE) \
gen_helper_dfmin(RddV, cpu_env, RssV, RttV)
#define fGEN_TCG_F2_dfcmpeq(SHORTCODE) \
gen_helper_dfcmpeq(PdV, cpu_env, RssV, RttV)
#define fGEN_TCG_F2_dfcmpgt(SHORTCODE) \
gen_helper_dfcmpgt(PdV, cpu_env, RssV, RttV)
#define fGEN_TCG_F2_dfcmpge(SHORTCODE) \
gen_helper_dfcmpge(PdV, cpu_env, RssV, RttV)
#define fGEN_TCG_F2_dfcmpuo(SHORTCODE) \
gen_helper_dfcmpuo(PdV, cpu_env, RssV, RttV)
#define fGEN_TCG_F2_dfclass(SHORTCODE) \
do { \
TCGv imm = tcg_constant_tl(uiV); \
gen_helper_dfclass(PdV, cpu_env, RssV, imm); \
} while (0)
#define fGEN_TCG_F2_sfmpy(SHORTCODE) \
gen_helper_sfmpy(RdV, cpu_env, RsV, RtV)
#define fGEN_TCG_F2_sffma(SHORTCODE) \
gen_helper_sffma(RxV, cpu_env, RxV, RsV, RtV)
#define fGEN_TCG_F2_sffma_sc(SHORTCODE) \
gen_helper_sffma_sc(RxV, cpu_env, RxV, RsV, RtV, PuV)
#define fGEN_TCG_F2_sffms(SHORTCODE) \
gen_helper_sffms(RxV, cpu_env, RxV, RsV, RtV)
#define fGEN_TCG_F2_sffma_lib(SHORTCODE) \
gen_helper_sffma_lib(RxV, cpu_env, RxV, RsV, RtV)
#define fGEN_TCG_F2_sffms_lib(SHORTCODE) \
gen_helper_sffms_lib(RxV, cpu_env, RxV, RsV, RtV)
#define fGEN_TCG_F2_dfmpyfix(SHORTCODE) \
gen_helper_dfmpyfix(RddV, cpu_env, RssV, RttV)
#define fGEN_TCG_F2_dfmpyhh(SHORTCODE) \
gen_helper_dfmpyhh(RxxV, cpu_env, RxxV, RssV, RttV)
/* Nothing to do for these in qemu, need to suppress compiler warnings */
#define fGEN_TCG_Y4_l2fetch(SHORTCODE) \
do { \
RsV = RsV; \
RtV = RtV; \
} while (0)
#define fGEN_TCG_Y5_l2fetch(SHORTCODE) \
do { \
RsV = RsV; \
} while (0)
#endif
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