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Diffstat (limited to 'runtime/powerpc64/vararg.s')
| -rw-r--r-- | runtime/powerpc64/vararg.s | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/runtime/powerpc64/vararg.s b/runtime/powerpc64/vararg.s deleted file mode 100644 index 8d7e62c8..00000000 --- a/runtime/powerpc64/vararg.s +++ /dev/null @@ -1,163 +0,0 @@ -# ***************************************************************** -# -# The Compcert verified compiler -# -# Xavier Leroy, INRIA Paris-Rocquencourt -# -# Copyright (c) 2013 Institut National de Recherche en Informatique et -# en Automatique. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions are met: -# * Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# * Redistributions in binary form must reproduce the above copyright -# notice, this list of conditions and the following disclaimer in the -# documentation and/or other materials provided with the distribution. -# * Neither the name of the <organization> nor the -# names of its contributors may be used to endorse or promote products -# derived from this software without specific prior written permission. -# -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT -# HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, -# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, -# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR -# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF -# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING -# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -# -# ********************************************************************* - -# Helper functions for variadic functions <stdarg.h>. IA32 version - -# typedef struct { -# unsigned char ireg; // index of next integer register -# unsigned char freg; // index of next FP register -# char * stk; // pointer to next argument in stack -# struct { -# int iregs[8]; -# double fregs[8]; -# } * regs; // pointer to saved register area -# } va_list[1]; -# -# unsigned int __compcert_va_int32(va_list ap); -# unsigned long long __compcert_va_int64(va_list ap); -# double __compcert_va_float64(va_list ap); - - .text - - .balign 16 - .globl __compcert_va_int32 -__compcert_va_int32: - # r3 = ap = address of va_list structure - lbz r4, 0(r3) # r4 = ap->ireg = next integer register - cmplwi r4, 8 - bge 1f - # Next argument was passed in an integer register - lwz r5, 8(r3) # r5 = ap->regs = base of saved register area - rlwinm r6, r4, 2, 0, 29 # r6 = r4 * 4 - addi r4, r4, 1 # increment ap->ireg - stb r4, 0(r3) - lwzx r3, r5, r6 # load argument in r3 - blr - # Next argument was passed on stack -1: lwz r5, 4(r3) # r5 = ap->stk = next argument passed on stack - addi r5, r5, 4 # advance ap->stk by 4 - stw r5, 4(r3) - lwz r3, -4(r5) # load argument in r3 - blr - .type __compcert_va_int32, @function - .size __compcert_va_int32, .-__compcert_va_int32 - - .balign 16 - .globl __compcert_va_int64 -__compcert_va_int64: - # r3 = ap = address of va_list structure - lbz r4, 0(r3) # r4 = ap->ireg = next integer register - cmplwi r4, 7 - bge 1f - # Next argument was passed in two consecutive integer register - lwz r5, 8(r3) # r5 = ap->regs = base of saved register area - addi r4, r4, 3 # round r4 up to an even number and add 2 - rlwinm r4, r4, 0, 0, 30 - rlwinm r6, r4, 2, 0, 29 # r6 = r4 * 4 - add r5, r5, r6 # r5 = address of argument + 8 - stb r4, 0(r3) # update ap->ireg - lwz r3, -8(r5) # load argument in r3:r4 - lwz r4, -4(r5) - blr - # Next argument was passed on stack -1: lwz r5, 4(r3) # r5 = ap->stk = next argument passed on stack - li r4, 8 - stb r4, 0(r3) # set ap->ireg = 8 so that no ireg is left - addi r5, r5, 15 # round r5 to a multiple of 8 and add 8 - rlwinm r5, r5, 0, 0, 28 - stw r5, 4(r3) # update ap->stk - lwz r3, -8(r5) # load argument in r3:r4 - lwz r4, -4(r5) - blr - .type __compcert_va_int64, @function - .size __compcert_va_int64, .-__compcert_va_int64 - - .balign 16 - .globl __compcert_va_float64 -__compcert_va_float64: - # r3 = ap = address of va_list structure - lbz r4, 1(r3) # r4 = ap->freg = next float register - cmplwi r4, 8 - bge 1f - # Next argument was passed in a FP register - lwz r5, 8(r3) # r5 = ap->regs = base of saved register area - rlwinm r6, r4, 3, 0, 28 # r6 = r4 * 8 - add r5, r5, r6 - lfd f1, 32(r5) # load argument in f1 - addi r4, r4, 1 # increment ap->freg - stb r4, 1(r3) - blr - # Next argument was passed on stack -1: lwz r5, 4(r3) # r5 = ap->stk = next argument passed on stack - addi r5, r5, 15 # round r5 to a multiple of 8 and add 8 - rlwinm r5, r5, 0, 0, 28 - lfd f1, -8(r5) # load argument in f1 - stw r5, 4(r3) # update ap->stk - blr - .type __compcert_va_float64, @function - .size __compcert_va_float64, .-__compcert_va_int64 - - .balign 16 - .globl __compcert_va_composite -__compcert_va_composite: - b __compcert_va_int32 - .type __compcert_va_composite, @function - .size __compcert_va_composite, .-__compcert_va_composite - -# Save integer and FP registers at beginning of vararg function - - .balign 16 - .globl __compcert_va_saveregs -__compcert_va_saveregs: - lwz r11, 0(r1) # r11 point to top of our frame - stwu r3, -96(r11) # register save area is 96 bytes below - stw r4, 4(r11) - stw r5, 8(r11) - stw r6, 12(r11) - stw r7, 16(r11) - stw r8, 20(r11) - stw r9, 24(r11) - stw r10, 28(r11) - bf 6, 1f # don't save FP regs if CR6 bit is clear - stfd f1, 32(r11) - stfd f2, 40(r11) - stfd f3, 48(r11) - stfd f4, 56(r11) - stfd f5, 64(r11) - stfd f6, 72(r11) - stfd f7, 80(r11) - stfd f8, 88(r11) -1: blr - .type __compcert_va_saveregs, @function - .size __compcert_va_saveregs, .-__compcert_va_saveregs |