#mach: crisv32 #output: Basic clock cycles, total @: *\n #output: Memory source stall cycles: 82\n #output: Memory read-after-write stall cycles: 0\n #output: Movem source stall cycles: 6\n #output: Movem destination stall cycles: 880\n #output: Movem address stall cycles: 4\n #output: Multiplication source stall cycles: 18\n #output: Jump source stall cycles: 6\n #output: Branch misprediction stall cycles: 0\n #output: Jump target stall cycles: 0\n #sim: --cris-cycles=basic .include "testutils.inc" ; Macros for testing correctness of movem destination stall ; cycles for various insn types. Beware: macro parameters can ; be comma or space-delimited. There are problems (i.e. bugs) ; with using space-delimited operands and operands with ; non-alphanumeric characters, like "[]-." so use comma for ; them. Lots of trouble passing empty parameters and parameters ; with comma. Ugh. FIXME: Report bugs, fix bugs, fix other ; shortcomings, fix that darn old macro-parameter-in-string. ; Helper macro. Unfortunately I find no cleaner way to unify ; one and two-operand cases, the main problem being the comma ; operand delimiter clashing with macro operand delimiter. .macro t_S_x_y S insn x y=none movem [r7],r6 .ifc \y,none .ifc \S,none \insn \x .else \insn\S \x .endif .else .ifc \S,none \insn \x,\y .else \insn\S \x,\y .endif .endif nop nop nop .endm ; An insn-type that has a single register operand. The register ; may or may not be a source register for the insn. .macro t_r insn t_S_x_y none,\insn,r3 t_S_x_y none,\insn,r8 .endm ; An insn-type that jumps to the destination of the register. .macro t_r_j insn move.d 0f,r7 move.d 1f,r8 move.d r8,r9 nop nop nop .section ".rodata" .p2align 5 0: .dword 1f .dword 1f .dword 1f .dword 1f .dword 1f .dword 1f .dword 1f .previous t_r \insn 1: .endm ; An insn-type that has a size-modifier and two register ; operands. .macro t_xr_r S insn t_S_x_y \S \insn r3 r8 t_S_x_y \S \insn r8 r3 move.d r3,r9 t_S_x_y \S \insn r4 r3 t_S_x_y \S \insn r8 r9 .endm ; An insn-type that has two register operands. .macro t_r_r insn t_xr_r none \insn .endm ; An t_r_rx insn with a byte or word-size modifier. .macro t_wbr_r insn t_xr_r .b,\insn t_xr_r .w,\insn .endm ; Ditto with a dword-size modifier. .macro t_dwbr_r insn t_xr_r .d,\insn t_wbr_r \insn .endm ; An insn-type that has a size-modifier, a constant and a ; register operand. .macro t_xc_r S insn t_S_x_y \S \insn 24 r3 move.d r3,r9 t_S_x_y \S \insn 24 r8 .endm ; An insn-type that has a constant and a register operand. .macro t_c_r insn t_xc_r none \insn .endm ; An t_c_r insn with a byte or word-size modifier. .macro t_wbc_r insn t_xc_r .b,\insn t_xc_r .w,\insn .endm ; Ditto with a dword-size modifier. .macro t_dwbc_r insn t_xc_r .d,\insn t_wbc_r \insn .endm ; An insn-type that has size-modifier, a memory operand and a ; register operand. .macro t_xm_r S insn move.d 9b,r8 t_S_x_y \S,\insn,[r4],r3 move.d r3,r9 t_S_x_y \S,\insn,[r8],r5 move.d r5,r9 t_S_x_y \S,\insn,[r3],r9 t_S_x_y \S,\insn,[r8],r9 .endm ; Ditto, to memory. .macro t_xr_m S insn move.d 9b,r8 t_S_x_y \S,\insn,r3,[r4] t_S_x_y \S,\insn,r8,[r3] t_S_x_y \S,\insn,r3,[r8] t_S_x_y \S,\insn,r9,[r8] .endm ; An insn-type that has a memory operand and a register operand. .macro t_m_r insn t_xm_r none \insn .endm ; An t_m_r insn with a byte or word-size modifier. .macro t_wbm_r insn t_xm_r .b,\insn t_xm_r .w,\insn .endm ; Ditto with a dword-size modifier. .macro t_dwbm_r insn t_xm_r .d,\insn t_wbm_r \insn .endm ; Insn types of the regular type (r, c, m, size d w b). .macro t_dwb insn t_dwbr_r \insn t_dwbc_r \insn t_dwbm_r \insn .endm ; Similar, sizes w b. .macro t_wb insn t_wbr_r \insn t_wbc_r \insn t_wbm_r \insn .endm ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; startnostack ; Initialize registers so they don't contain unknowns. move.d 9f,r7 move.d r7,r8 moveq 0,r9 ; Movem source area. Register contents must be valid ; addresses, aligned on a cache boundary. .section ".rodata" .p2align 5 9: .dword 9b .dword 9b .dword 9b .dword 9b .dword 9b .dword 9b .dword 9b .dword 9b .dword 9b .dword 9b .previous ; The actual tests. The numbers in the comments specify the ; number of movem destination stall cycles. Some of them may be ; filed as memory source address stalls, multiplication source ; stalls or jump source stalls, duly marked so. t_r_r abs ; 3+3 t_dwb add ; (3+3+3)*3+3*3+(3+3+3)*3 (6 mem src) t_r_r addc ; (3+3+3) t_c_r addc ; 3 t_m_r addc ; (3+3+3) (2 mem src) t_dwb move ; (3+3)+(3+3+3)*2+3*2+(3+3+3)*3 (6 mem src) t_xr_m .b move ; 3+3+3 (2 mem src) t_xr_m .w move ; 3+3+3 (2 mem src) t_xr_m .d move ; 3+3+3 (2 mem src) t_S_x_y none addi r3.b r8 ; 3 t_S_x_y none addi r8.w r3 ; 3 t_S_x_y none addi r4.d r3 ; 3 t_S_x_y none addi r8.w r9 ; Addo has three-operand syntax, so we have to expand (a useful ; subset of) "t_dwb". t_S_x_y none addi r3.b "r8,acr" ; 3 t_S_x_y none addi r8.w "r3,acr" ; 3 t_S_x_y none addi r4.d "r3,acr" ; 3 t_S_x_y none addi r8.w "r9,acr" t_S_x_y .b addo 42 "r8,acr" t_S_x_y .w addo 4200 "r3,acr" ; 3 t_S_x_y .d addo 420000 "r3,acr" ; 3 move.d 9b,r8 t_S_x_y .d,addo,[r4],"r3,acr" ; 3 (1 mem src) t_S_x_y .b,addo,[r3],"r8,acr" ; 3 (1 mem src) t_S_x_y .w,addo,[r8],"r3,acr" ; 3 t_S_x_y .w,addo,[r8],"r9,acr" ; Similar for addoq. t_S_x_y none addoq 42 "r8,acr" t_S_x_y none addoq 42 "r3,acr" ; 3 t_c_r addq ; 3 t_wb adds ; (3+3+3)*2+3*2+(3+3+3)*2 (4 mem src) t_wb addu ; (3+3+3)*2+3*2+(3+3+3)*2 (4 mem src) t_dwb and ; (3+3+3)*3+3*3+(3+3+3)*3 (6 mem src) t_c_r andq ; 3 t_dwbr_r asr ; (3+3+3)*3 t_c_r asrq ; 3 t_dwbr_r bound ; (3+3+3)*3 t_dwbc_r bound ; 3*3 t_r_r btst ; (3+3+3) t_c_r btstq ; 3 t_dwb cmp ; (3+3+3)*3+3*3+(3+3+3)*3 (6 mem src) t_c_r cmpq ; 3 t_wbc_r cmps ; 3*2 t_wbc_r cmpu ; 3*2 t_wbm_r cmps ; (3+3+3)*2 (4 mem src) t_wbm_r cmpu ; (3+3+3)*2 (4 mem src) t_r_r dstep ; (3+3+3) ; FIXME: idxd, fidxi, ftagd, ftagi when supported. t_r_j jsr ; 3 (2 jump src) t_r_j jump ; 3 (2 jump src) t_c_r lapc.d ; The "quick operand" must be in range [. to .+15*2] so we can't ; use t_c_r. t_S_x_y none lapcq .+4 r3 t_S_x_y none lapcq .+4 r8 t_dwbr_r lsl ; (3+3+3)*3 t_c_r lslq ; 3 t_dwbr_r lsr ; (3+3+3)*3 t_c_r lsrq ; 3 t_r_r lz ; 3+3 t_S_x_y none mcp srp r3 ; 3 t_S_x_y none mcp srp r8 t_c_r moveq t_S_x_y none move srp r8 t_S_x_y none move srp r3 t_S_x_y none move r8 srp t_S_x_y none move r3 srp ; 3 ; FIXME: move supreg,Rd and move Rs,supreg when supported. t_wb movs ; (3+3)*2+0+(3+3)*2 (4 mem src) t_wb movu ; (3+3)*2+0+(3+3)*2 (4 mem src) t_dwbr_r muls ; (3+3+3)*3 (9 mul src) t_dwbr_r mulu ; (3+3+3)*3 (9 mul src) t_dwbr_r neg ; (3+3)*3 t_r not ; 3 cycles. t_dwb or ; (3+3+3)*3+3*3+(3+3+3)*3 (6 mem src) t_c_r orq ; 3 t_r seq t_dwb sub ; (3+3+3)*3+3*3+(3+3+3)*3 (6 mem src) t_c_r subq ; 3 t_wb subs ; (3+3+3)*2+3*2+(3+3+3)*2 (4 mem src) t_wb subu ; (3+3+3)*2+3*2+(3+3+3)*2 (4 mem src) t_r swapw ; 3 cycles. t_r swapnwbr ; 3 cycles. t_r_j jsrc ; 3 (2 jump src) t_r_r xor ; (3+3+3) move.d 9b,r7 nop nop nop t_xm_r none movem ; (3+3) (2 mem src, 1+1 movem addr) ; As implied by the comment, all movem destination penalty ; cycles (but one) are accounted for as memory source address ; and movem source penalties. There are also two movem address ; cache-line straddle penalties. t_xr_m none movem ; (3+3+2+2) (2 mem, 6 movem src, +2 movem addr) break 15