276 lines
6.1 KiB
ArmAsm
276 lines
6.1 KiB
ArmAsm
#define ASSEMBLER
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#include "common.h"
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#define N $r4
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#define X $r5
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#define INCX $r6
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#define I $r12
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#define t1 $r13
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#define t2 $r15
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#define t3 $r18
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#define t4 $r16
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#define i0 $r17
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#define i1 $r14
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#define TEMP $r19
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#define x1 $vr9
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#define x2 $vr10
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#define x3 $vr11
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#define x4 $vr12
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#define VX0 $vr13
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#define VX1 $vr14
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#define VM0 $vr15
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#define VM1 $vr16
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#define VINC4 $vr17
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#define VINC8 $vr18
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#define VI0 $vr20
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#define VI1 $vr21
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#define VI2 $vr22
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#define VI3 $vr8
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#define VI4 $vr19
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#define VT0 $vr23
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PROLOGUE
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li.d i0, 0
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bge $r0, N, .L999
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bge $r0, INCX, .L999
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li.d TEMP, 1
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slli.d TEMP, TEMP, BASE_SHIFT
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slli.d INCX, INCX, BASE_SHIFT
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bne INCX, TEMP, .L20
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vld VM0, X, 0
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addi.w i0, i0, 1
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srai.d I, N, 3
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bge $r0, I, .L21
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slli.w i0, i0, 2 //4
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vreplgr2vr.w VINC4, i0
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slli.w i0, i0, 1 //8
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vreplgr2vr.w VINC8, i0
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addi.w i0, i0, -15
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vinsgr2vr.w VI1, i0, 0 //initialize the index value for vectorization
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addi.w i0, i0, 1
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vinsgr2vr.w VI1, i0, 1
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addi.w i0, i0, 1
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vinsgr2vr.w VI1, i0, 2
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addi.w i0, i0, 1
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vinsgr2vr.w VI1, i0, 3
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addi.w i0, i0, 5
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vinsgr2vr.w VI0, i0, 0 //1
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addi.w i0, i0, 1
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vinsgr2vr.w VI0, i0, 1 //2
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addi.w i0, i0, 1
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vinsgr2vr.w VI0, i0, 2 //3
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addi.w i0, i0, 1
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vinsgr2vr.w VI0, i0, 3 //4
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.align 3
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.L10:
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vld VX0, X, 0 * SIZE
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vadd.w VI1, VI1, VINC8
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vld VX1, X, 4 * SIZE
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vadd.w VI2, VI1, VINC4
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vfmaxa.s VM1, VX0, VX1
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vfcmp.ceq.s VT0, VX0, VM1
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addi.d I, I, -1
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vbitsel.v VI2, VI2, VI1, VT0
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vfmaxa.s VM1, VM0, VM1
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vfcmp.ceq.s VT0, VM0, VM1
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addi.d X, X, 8 * SIZE
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vbitsel.v VM0, VM1, VM0, VT0
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vbitsel.v VI0, VI2, VI0, VT0
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blt $r0, I, .L10
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.align 3
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.L15:
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vreplvei.w VI1, VI0, 0
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vreplvei.w VI2, VI0, 1
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vreplvei.w VI3, VI0, 2
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vreplvei.w VI4, VI0, 3
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vreplvei.w x1, VM0, 0
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vreplvei.w x2, VM0, 1
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vreplvei.w x3, VM0, 2
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vreplvei.w x4, VM0, 3
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vfmaxa.s VM1, x1, x2
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vfcmp.ceq.s VT0, VM1, x1
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vbitsel.v VINC4, VI2, VI1, VT0
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vfmaxa.s VM0, x3, x4
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vfcmp.ceq.s VT0, x3, VM0
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vbitsel.v VINC8, VI4, VI3, VT0
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vfmaxa.s VM0, VM0, VM1
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vfcmp.ceq.s VT0, VM0, VM1
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vbitsel.v VI0, VINC8, VINC4, VT0
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li.d TEMP, 1 //处理尾数相等时取最小序号
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movgr2fr.w $f17, TEMP
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ffint.s.w $f17, $f17
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vfcmp.ceq.s VT0, VM0, x1
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fcmp.ceq.s $fcc0, $f23, $f17
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bceqz $fcc0, .L26
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vfcmp.clt.s VT0, VI1, VI0
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vbitsel.v VI0, VI0, VI1, VT0
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b .L26
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.align 3
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.L20: // INCX!=1
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move TEMP, X
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addi.w i0, i0, 1
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ld.w t1, TEMP, 0 * SIZE
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add.d TEMP, TEMP, INCX
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vinsgr2vr.w VM0, t1, 0
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srai.d I, N, 3
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bge $r0, I, .L21
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ld.w t2, TEMP, 0 * SIZE
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add.d TEMP, TEMP, INCX
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ld.w t3, TEMP, 0 * SIZE
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add.d TEMP, TEMP, INCX
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ld.w t4, TEMP, 0 * SIZE
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add.d TEMP, TEMP, INCX
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vinsgr2vr.w VM0, t2, 1
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vinsgr2vr.w VM0, t3, 2
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vinsgr2vr.w VM0, t4, 3
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slli.w i0, i0, 2 //4
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vreplgr2vr.w VINC4, i0
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slli.w i0, i0, 1 //8
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vreplgr2vr.w VINC8, i0
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addi.w i0, i0, -15
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vinsgr2vr.w VI1, i0, 0 //initialize the index value for vectorization
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addi.w i0, i0, 1
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vinsgr2vr.w VI1, i0, 1
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addi.w i0, i0, 1
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vinsgr2vr.w VI1, i0, 2
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addi.w i0, i0, 1
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vinsgr2vr.w VI1, i0, 3
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addi.w i0, i0, 5
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vinsgr2vr.w VI0, i0, 0 //1
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addi.w i0, i0, 1
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vinsgr2vr.w VI0, i0, 1 //2
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addi.w i0, i0, 1
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vinsgr2vr.w VI0, i0, 2 //3
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addi.w i0, i0, 1
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vinsgr2vr.w VI0, i0, 3 //4
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.align 3
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.L24:
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ld.w t1, X, 0 * SIZE
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add.d X, X, INCX
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ld.w t2, X, 0 * SIZE
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add.d X, X, INCX
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ld.w t3, X, 0 * SIZE
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add.d X, X, INCX
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ld.w t4, X, 0 * SIZE
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add.d X, X, INCX
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vinsgr2vr.w VX0, t1, 0
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vinsgr2vr.w VX0, t2, 1
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vinsgr2vr.w VX0, t3, 2
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vinsgr2vr.w VX0, t4, 3
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vadd.w VI1, VI1, VINC8
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ld.w t1, X, 0 * SIZE
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add.d X, X, INCX
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ld.w t2, X, 0 * SIZE
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add.d X, X, INCX
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ld.w t3, X, 0 * SIZE
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add.d X, X, INCX
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ld.w t4, X, 0 * SIZE
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add.d X, X, INCX
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vinsgr2vr.w VX1, t1, 0
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vinsgr2vr.w VX1, t2, 1
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vinsgr2vr.w VX1, t3, 2
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vinsgr2vr.w VX1, t4, 3
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vadd.w VI2, VI1, VINC4
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vfmaxa.s VM1, VX0, VX1
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vfcmp.ceq.s VT0, VX0, VM1
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vbitsel.v VI2, VI2, VI1, VT0
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vfmaxa.s VM1, VM0, VM1
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vfcmp.ceq.s VT0, VM0, VM1
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addi.d I, I, -1
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vbitsel.v VM0, VM1, VM0, VT0
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vbitsel.v VI0, VI2, VI0, VT0
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blt $r0, I, .L24
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.align 3
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.L25:
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vreplvei.w VI1, VI0, 0
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vreplvei.w VI2, VI0, 1
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vreplvei.w VI3, VI0, 2
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vreplvei.w VI4, VI0, 3
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vreplvei.w x1, VM0, 0
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vreplvei.w x2, VM0, 1
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vreplvei.w x3, VM0, 2
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vreplvei.w x4, VM0, 3
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vfmaxa.s VM1, x1, x2
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vfcmp.ceq.s VT0, VM1, x1
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vbitsel.v VINC4, VI2, VI1, VT0
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vfmaxa.s VM0, x3, x4
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vfcmp.ceq.s VT0, x3, VM0
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vbitsel.v VINC8, VI4, VI3, VT0
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vfmaxa.s VM0, VM0, VM1
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vfcmp.ceq.s VT0, VM0, VM1
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vbitsel.v VI0, VINC8, VINC4, VT0
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li.d TEMP, 1 //处理尾数相等时取最小序号
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movgr2fr.w $f17, TEMP
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ffint.s.w $f17, $f17
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vfcmp.ceq.s VT0, VM0, x1
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fcmp.ceq.s $fcc0, $f23, $f17
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bceqz $fcc0, .L26
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vfcmp.clt.s VT0, VI1, VI0
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vbitsel.v VI0, VI0, VI1, VT0
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.align 3
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.L26:
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vfcmp.ceq.s VT0, VM0, x2
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fcmp.ceq.s $fcc0, $f23, $f17
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bceqz $fcc0, .L27
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vfcmp.clt.s VT0, VI2, VI0
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vbitsel.v VI0, VI0, VI2, VT0
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.align 3
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.L27:
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vfcmp.ceq.s VT0, VM0, x3
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fcmp.ceq.s $fcc0, $f23, $f17
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bceqz $fcc0, .L28
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vfcmp.clt.s VT0, VI3, VI0
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vbitsel.v VI0, VI0, VI3, VT0
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.align 3
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.L28:
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vfcmp.ceq.s VT0, VM0, x4
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fcmp.ceq.s $fcc0, $f23, $f17
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bceqz $fcc0, .L29
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vfcmp.clt.s VT0, VI4, VI0
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vbitsel.v VI0, VI0, VI4, VT0
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.align 3
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.L29:
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movfr2gr.s i0, $f20
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.align 3
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.L21: //N<8
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andi I, N, 7
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bge $r0, I, .L999
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srai.d i1, N, 3
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slli.d i1, i1, 3
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addi.d i1, i1, 1 //current index
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movgr2fr.d $f21, i1
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movgr2fr.d $f20, i0
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.align 3
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.L22:
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fld.s $f9, X, 0
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addi.d I, I, -1
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vfmaxa.s VM1, x1, VM0
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vfcmp.ceq.s VT0, VM0, VM1
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add.d X, X, INCX
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vbitsel.v VM0, VM1, VM0, VT0
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vbitsel.v VI0, VI1, VI0, VT0
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addi.d i1, i1, 1
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movgr2fr.d $f21, i1
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blt $r0, I, .L22
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movfr2gr.s i0, $f20
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.align 3
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.L999:
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move $r4, $r17
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jirl $r0, $r1, 0x0
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.align 3
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EPILOGUE
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