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Diffstat (limited to 'src/grt/config/ia64.S')
| -rw-r--r-- | src/grt/config/ia64.S | 331 |
1 files changed, 331 insertions, 0 deletions
diff --git a/src/grt/config/ia64.S b/src/grt/config/ia64.S new file mode 100644 index 0000000..9ce3800 --- /dev/null +++ b/src/grt/config/ia64.S @@ -0,0 +1,331 @@ +/* GRT stack implementation for ia64. + Copyright (C) 2002 - 2014 Tristan Gingold. + + GHDL is free software; you can redistribute it and/or modify it under + the terms of the GNU General Public License as published by the Free + Software Foundation; either version 2, or (at your option) any later + version. + + GHDL is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + for more details. + + You should have received a copy of the GNU General Public License + along with GCC; see the file COPYING. If not, write to the Free + Software Foundation, 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. + + As a special exception, if other files instantiate generics from this + unit, or you link this unit with other files to produce an executable, + this unit does not by itself cause the resulting executable to be + covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU Public License. +*/ + .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" |