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Hexagon (target/hexagon) load into shifted register instructions

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The following instructions are added
    L2_loadalignb_io          Ryy32 = memb_fifo(Rs32+#s11:1)
    L2_loadalignh_io          Ryy32 = memh_fifo(Rs32+#s11:1)
    L4_loadalignb_ur          Ryy32 = memb_fifo(Rt32<<#u2+#U6)
    L4_loadalignh_ur          Ryy32 = memh_fifo(Rt32<<#u2+#U6)
    L4_loadalignb_ap          Ryy32 = memb_fifo(Re32=#U6)
    L4_loadalignh_ap          Ryy32 = memh_fifo(Re32=#U6)
    L2_loadalignb_pr          Ryy32 = memb_fifo(Rx32++Mu2)
    L2_loadalignh_pr          Ryy32 = memh_fifo(Rx32++Mu2)
    L2_loadalignb_pbr         Ryy32 = memb_fifo(Rx32++Mu2:brev)
    L2_loadalignh_pbr         Ryy32 = memh_fifo(Rx32++Mu2:brev)
    L2_loadalignb_pi          Ryy32 = memb_fifo(Rx32++#s4:1)
    L2_loadalignh_pi          Ryy32 = memh_fifo(Rx32++#s4:1)
    L2_loadalignb_pci         Ryy32 = memb_fifo(Rx32++#s4:1:circ(Mu2))
    L2_loadalignh_pci         Ryy32 = memh_fifo(Rx32++#s4:1:circ(Mu2))
    L2_loadalignb_pcr         Ryy32 = memb_fifo(Rx32++I:circ(Mu2))
    L2_loadalignh_pcr         Ryy32 = memh_fifo(Rx32++I:circ(Mu2))

Test cases in tests/tcg/hexagon/load_align.c

Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <1617930474-31979-26-git-send-email-tsimpson@quicinc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Taylor Simpson 2021-04-08 20:07:53 -05:00 • committed by Richard Henderson
parent 0d0b91a804
commit 7aa9ffab79
5 changed files with 504 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

66
target/hexagon/gen_tcg.h
View file

@ -260,6 +260,72 @@
#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

3
target/hexagon/imported/encode_pp.def
View file

@ -348,6 +348,9 @@ STD_LD_ENC(bzw2,"0 011")
STD_LD_ENC(bsw4,"0 111")
STD_LD_ENC(bsw2,"0 001")
STD_LDX_ENC(alignh,"0 010")
STD_LDX_ENC(alignb,"0 100")
STD_LD_ENC(rb, "1 000")
STD_LD_ENC(rub, "1 001")
STD_LD_ENC(rh, "1 010")

19
target/hexagon/imported/ldst.idef
View file

@ -80,6 +80,25 @@ ATTRIBS(A_LOAD),"2",
STD_LD_AMODES(loadalignh, "Ryy32=memh_fifo", "Load Half-word into shifted vector",
ATTRIBS(A_LOAD),"1",
{
fHIDE(size8u_t tmpV;)
fLOAD(1,2,u,EA,tmpV);
RyyV = (((size8u_t)RyyV)>>16)|(tmpV<<48);
},1)
STD_LD_AMODES(loadalignb, "Ryy32=memb_fifo", "Load byte into shifted vector",
ATTRIBS(A_LOAD),"0",
{
fHIDE(size8u_t tmpV;)
fLOAD(1,1,u,EA,tmpV);
RyyV = (((size8u_t)RyyV)>>8)|(tmpV<<56);
},0)
/* The set of addressing modes standard to all Store instructions */
#define STD_ST_AMODES(TAG,DEST,OPER,DESCR,ATTRIB,SHFT,SEMANTICS,SCALE)\