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|
.file "ia64.S"
.pred.safe_across_calls p1-p5,p16-p63
.text
.align 16
.proc grt_stack_loop
grt_stack_loop:
alloc r32 = ar.pfs, 0, 1, 1, 0
.body
;;
1: mov r33 = r4
br.call.sptk.many b0 = b1
;;
br 1b
.endp
frame_size = 480
.global grt_stack_switch#
.proc grt_stack_switch#
/* r32: struct stack_context *TO, r33: struct stack_context *FROM. */
// Registers to be saved:
// ar.rsc, ar.bsp, ar.pfs, ar.lc, ar.rnat [5]
// gp, r4-r7 (+ Nat) [6]
// f2-f5, f16-f31 [20]
// p1-p5, p16-p63 [1] ???
// b1-b5 [5]
// f2-f5, f16-f31 [20*16]
grt_stack_switch:
.prologue 2, 2
.vframe r2
{
alloc r31=ar.pfs, 2, 0, 0, 0
mov r14 = ar.rsc
adds r12 = -frame_size, r12
.body
;;
}
// Save ar.rsc, ar.bsp, ar.pfs
{
st8 [r12] = r14 // sp + 0 <- ar.rsc
mov r15 = ar.bsp
adds r22 = (5*8), r12
;;
}
{
st8.spill [r22] = r1, 8 // sp + 40 <- r1
;;
st8.spill [r22] = r4, 8 // sp + 48 <- r4
adds r20 = 8, r12
;;
}
st8 [r20] = r15, 8 // sp + 8 <- ar.bsp
st8.spill [r22] = r5, 8 // sp + 56 <- r5
mov r15 = ar.lc
;;
{
st8 [r20] = r31, 8 // sp + 16 <- ar.pfs
// Flush dirty registers to the backing store
flushrs
mov r14 = b0
;;
}
{
st8 [r20] = r15, 8 // sp + 24 <- ar.lc
// Set the RSE in enforced lazy mode.
mov ar.rsc = 0
;;
}
{
// Save sp.
st8 [r33] = r12
mov r15 = ar.rnat
mov r16 = b1
;;
}
{
st8.spill [r22] = r6, 8 // sp + 64 <- r6
st8 [r20] = r15, 64 // sp + 32 <- ar.rnat
;;
}
{
st8.spill [r22] = r7, 16 // sp + 72 <- r7
st8 [r20] = r14, 8 // sp + 96 <- b0
mov r15 = b2
;;
}
{
mov r17 = ar.unat
;;
st8 [r22] = r17, 24 // sp + 88 <- ar.unat
mov r14 = b3
;;
}
{
st8 [r20] = r16, 16 // sp + 104 <- b1
st8 [r22] = r15, 16 // sp + 112 <- b2
mov r17 = b4
;;
}
{
st8 [r20] = r14, 16 // sp + 120 <- b3
st8 [r22] = r17, 16 // sp + 128 <- b4
mov r15 = b5
;;
}
{
// Read new sp.
ld8 r21 = [r32]
;;
st8 [r20] = r15, 24 // sp + 136 <- b5
mov r14 = pr
;;
}
;;
st8 [r22] = r14, 32 // sp + 144 <- pr
stf.spill [r20] = f2, 32 // sp + 160 <- f2
;;
stf.spill [r22] = f3, 32 // sp + 176 <- f3
stf.spill [r20] = f4, 32 // sp + 192 <- f4
;;
stf.spill [r22] = f5, 32 // sp + 208 <- f5
stf.spill [r20] = f16, 32 // sp + 224 <- f16
;;
stf.spill [r22] = f17, 32 // sp + 240 <- f17
stf.spill [r20] = f18, 32 // sp + 256 <- f18
;;
stf.spill [r22] = f19, 32 // sp + 272 <- f19
stf.spill [r20] = f20, 32 // sp + 288 <- f20
;;
stf.spill [r22] = f21, 32 // sp + 304 <- f21
stf.spill [r20] = f22, 32 // sp + 320 <- f22
;;
stf.spill [r22] = f23, 32 // sp + 336 <- f23
stf.spill [r20] = f24, 32 // sp + 352 <- f24
;;
stf.spill [r22] = f25, 32 // sp + 368 <- f25
stf.spill [r20] = f26, 32 // sp + 384 <- f26
;;
stf.spill [r22] = f27, 32 // sp + 400 <- f27
stf.spill [r20] = f28, 32 // sp + 416 <- f28
;;
stf.spill [r22] = f29, 32 // sp + 432 <- f29
stf.spill [r20] = f30, 32 // sp + 448 <- f30
;;
{
stf.spill [r22] = f31, 32 // sp + 464 <- f31
invala
adds r20 = 8, r21
;;
}
ld8 r14 = [r21], 88 // sp + 0 (ar.rsc)
ld8 r16 = [r20], 8 // sp + 8 (ar.bsp)
;;
ld8 r15 = [r21], -56 // sp + 88 (ar.unat)
;;
ld8 r18 = [r20], 8 // sp + 16 (ar.pfs)
mov ar.unat = r15
ld8 r17 = [r21], 8 // sp + 32 (ar.rnat)
;;
ld8 r15 = [r20], 72 // sp + 24 (ar.lc)
ld8.fill r1 = [r21], 8 // sp + 40 (r1)
mov ar.bspstore = r16
;;
ld8.fill r4 = [r21], 8 // sp + 48 (r4)
mov ar.pfs = r18
mov ar.rnat = r17
;;
mov ar.rsc = r14
mov ar.lc = r15
ld8 r17 = [r20], 8 // sp + 96 (b0)
;;
{
ld8.fill r5 = [r21], 8 // sp + 56 (r5)
ld8 r14 = [r20], 8 // sp + 104 (b1)
mov b0 = r17
;;
}
{
ld8.fill r6 = [r21], 8 // sp + 64 (r6)
ld8 r15 = [r20], 8 // sp + 112 (b2)
mov b1 = r14
;;
}
ld8.fill r7 = [r21], 64 // sp + 72 (r7)
ld8 r14 = [r20], 8 // sp + 120 (b3)
mov b2 = r15
;;
ld8 r15 = [r20], 16 // sp + 128 (b4)
ld8 r16 = [r21], 40 // sp + 136 (b5)
mov b3 = r14
;;
{
ld8 r14 = [r20], 16 // sp + 144 (pr)
;;
ldf.fill f2 = [r20], 32 // sp + 160 (f2)
mov b4 = r15
;;
}
ldf.fill f3 = [r21], 32 // sp + 176 (f3)
ldf.fill f4 = [r20], 32 // sp + 192 (f4)
mov b5 = r16
;;
ldf.fill f5 = [r21], 32 // sp + 208 (f5)
ldf.fill f16 = [r20], 32 // sp + 224 (f16)
mov pr = r14, -1
;;
ldf.fill f17 = [r21], 32 // sp + 240 (f17)
ldf.fill f18 = [r20], 32 // sp + 256 (f18)
;;
ldf.fill f19 = [r21], 32 // sp + 272 (f19)
ldf.fill f20 = [r20], 32 // sp + 288 (f20)
;;
ldf.fill f21 = [r21], 32 // sp + 304 (f21)
ldf.fill f22 = [r20], 32 // sp + 320 (f22)
;;
ldf.fill f23 = [r21], 32 // sp + 336 (f23)
ldf.fill f24 = [r20], 32 // sp + 352 (f24)
;;
ldf.fill f25 = [r21], 32 // sp + 368 (f25)
ldf.fill f26 = [r20], 32 // sp + 384 (f26)
;;
ldf.fill f27 = [r21], 32 // sp + 400 (f27)
ldf.fill f28 = [r20], 32 // sp + 416 (f28)
;;
ldf.fill f29 = [r21], 32 // sp + 432 (f29)
ldf.fill f30 = [r20], 32 // sp + 448 (f30)
;;
ldf.fill f31 = [r21], 32 // sp + 464 (f31)
mov r12 = r20
br.ret.sptk.many b0
;;
.endp grt_stack_switch#
.align 16
// r32: func, r33: arg
.global grt_stack_create#
.proc grt_stack_create#
grt_stack_create:
.prologue 14, 34
.save ar.pfs, r35
alloc r35 = ar.pfs, 2, 3, 0, 0
.save rp, r34
// Compute backing store.
movl r14 = stack_max_size
;;
.body
{
ld4 r36 = [r14] // r14: bsp
mov r34 = b0
br.call.sptk.many b0 = grt_stack_allocate#
;;
}
{
ld8 r22 = [r32], 8 // read ip (-> b1)
;;
ld8 r23 = [r32] // read r1 from func
adds r21 = -(frame_size + 16) + 32, r8
;;
}
{
st8 [r21] = r0, -32 // sp + 32 (ar.rnat = 0)
;;
st8 [r8] = r21 // Save cur_sp
mov r18 = 0x0f // ar.rsc: LE, PL=3, Eager
;;
}
{
st8 [r21] = r18, 40 // sp + 0 (ar.rsc)
;;
st8 [r21] = r23, 64 // sp + 40 (r1 = func.r1)
mov b0 = r34
;;
}
{
st8 [r21] = r22, -96 // sp + 104 (b1 = func.ip)
movl r15 = grt_stack_loop
;;
}
sub r14 = r8, r36 // Backing store base
;;
adds r14 = 16, r14 // Add sizeof (stack_context)
adds r20 = 40, r21
;;
{
st8 [r21] = r14, 88 // sp + 8 (ar.bsp)
;;
st8 [r21] = r15, -80 // sp + 96 (b0 = grt_stack_loop)
mov r16 = (0 << 7) | 1 // CFM: sol=0, sof=1
;;
}
{
st8 [r21] = r16, 8 // sp + 16 (ar.pfs)
;;
st8 [r21] = r0, 24 // sp + 24 (ar.lc)
mov ar.pfs = r35
;;
}
{
st8 [r20] = r0, 8 // sp + 32 (ar.rnat)
st8 [r21] = r33 // sp + 48 (r4 = arg)
br.ret.sptk.many b0
;;
}
.endp grt_stack_create#
.ident "GCC: (GNU) 4.0.2"
|
