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tcg/riscv: Utilitizing RISC-V 'V' extension in the backend #14

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merged 14 commits into from
Jun 21, 2023
Merged

tcg/riscv: Utilitizing RISC-V 'V' extension in the backend #14

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008aa0e
tcg/riscv: declaring support for basic '_vec' ops
Swung0x48 Jun 18, 2023
b05852d
tcg/riscv: const/reg constraints for 'V' extension
Swung0x48 Jun 18, 2023
601f1e0
tcg/riscv: declare vector registers
Swung0x48 Jun 18, 2023
d886ed3
tcg/riscv: detect and init V extension
Swung0x48 Jun 18, 2023
ce08dd3
tcg/riscv: use macro instead of magic number
Swung0x48 Jun 18, 2023
e70f92d
tcg/riscv: add '_vec' suffixed op definition in tcg_target_op_def
Swung0x48 Jun 18, 2023
c8c82d8
tcg/riscv: Implement '_vec' ops using V extension
Swung0x48 Jun 18, 2023
c5cebb9
tcg/riscv: add unused tcg-target.opc.h
Swung0x48 Jun 18, 2023
4537300
tcg/riscv: remove duplicate sigaction init
Swung0x48 Jun 18, 2023
aee487f
tcg/riscv: fix op_cmp_vec
Swung0x48 Jun 20, 2023
4794f9e
tcg/riscv: fix a typo in tcg-target-con-set.h
Swung0x48 Jun 21, 2023
9730a7e
tcg/riscv: formatting file
Swung0x48 Jun 21, 2023
422ba5d
tcg/riscv: add brackets after single line if
Swung0x48 Jun 21, 2023
dfcbbf2
tcg/riscv: fix argument indentation
Swung0x48 Jun 21, 2023
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8 changes: 8 additions & 0 deletions tcg/riscv/tcg-target-con-set.h
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Original file line number Diff line number Diff line change
Expand Up @@ -21,3 +21,11 @@ C_O1_I2(r, rZ, rZ)
C_N1_I2(r, r, rM)
C_O1_I4(r, r, rI, rM, rM)
C_O2_I4(r, r, rZ, rZ, rM, rM)
C_O1_I1(V, r)
C_O0_I2(V, r)
C_O1_I1(V, Vr)
C_O1_I2(V, r, r)
C_O1_I2(V, V, V)
C_O1_I2(V, V, r)
C_O1_I2(V, V, U)
C_O1_I2(V, r, V)
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9 changes: 9 additions & 0 deletions tcg/riscv/tcg-target-con-str.h
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Expand Up @@ -9,6 +9,14 @@
* REGS(letter, register_mask)
*/
REGS('r', ALL_GENERAL_REGS)
REGS('v', ALL_VECTOR_REGS)
REGS('V', VECTOR_REGS_WO_V0)
/*
* Defining constraint letters for vector register grouping:
* aka. LMUL != 1
*/
REGS('d', ALL_DVECTOR_REG_GROUPS)
REGS('q', ALL_QVECTOR_REG_GROUPS)

/*
* Define constraint letters for constants:
Expand All @@ -19,3 +27,4 @@ CONST('J', TCG_CT_CONST_J12)
CONST('N', TCG_CT_CONST_N12)
CONST('M', TCG_CT_CONST_M12)
CONST('Z', TCG_CT_CONST_ZERO)
CONST('U', TCG_CT_CONST_U4)
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同上

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@Swung0x48 Swung0x48 Jun 21, 2023 •
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U 是用来表示 imm[4:0] 的，用在 OPIVI 格式指令中（见 Spec 5.）例如 vmv.v.i 指令（不过目前还未使用到）

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