gecko/media/libvpx/third_party/x86inc/x86inc.asm
Jan Gerber 31fca20085 Bug 918550 - Update libvpx to 1.3.0 r=glandium,cpearce
This updates our in-tree copy of libvpx to the
v1.3.0 git tag (2e88f2f2ec777259bda1714e72f1ecd2519bceb5)
libvpx 1.3.0 adds support for VP9. VP9 support is built
but not yet exposed with this commit.

Our update.sh script is replaced with update.py that can
update the build system to a given git commit.
 - checkout out upstream git
 - create platform dependend config files
 - add/remove changed libvpx files
 - update moz.build
 - warn about new build categories in libvpx
2013-12-06 03:19:00 -08:00

1200 lines
31 KiB
NASM

;*****************************************************************************
;* x86inc.asm: x264asm abstraction layer
;*****************************************************************************
;* Copyright (C) 2005-2012 x264 project
;*
;* Authors: Loren Merritt <lorenm@u.washington.edu>
;* Anton Mitrofanov <BugMaster@narod.ru>
;* Jason Garrett-Glaser <darkshikari@gmail.com>
;* Henrik Gramner <hengar-6@student.ltu.se>
;*
;* Permission to use, copy, modify, and/or distribute this software for any
;* purpose with or without fee is hereby granted, provided that the above
;* copyright notice and this permission notice appear in all copies.
;*
;* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
;* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
;* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
;* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
;* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
;* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
;* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
;*****************************************************************************
; This is a header file for the x264ASM assembly language, which uses
; NASM/YASM syntax combined with a large number of macros to provide easy
; abstraction between different calling conventions (x86_32, win64, linux64).
; It also has various other useful features to simplify writing the kind of
; DSP functions that are most often used in x264.
; Unlike the rest of x264, this file is available under an ISC license, as it
; has significant usefulness outside of x264 and we want it to be available
; to the largest audience possible. Of course, if you modify it for your own
; purposes to add a new feature, we strongly encourage contributing a patch
; as this feature might be useful for others as well. Send patches or ideas
; to x264-devel@videolan.org .
%include "vpx_config.asm"
%define program_name vp9
%define UNIX64 0
%define WIN64 0
%if ARCH_X86_64
%ifidn __OUTPUT_FORMAT__,win32
%define WIN64 1
%elifidn __OUTPUT_FORMAT__,win64
%define WIN64 1
%elifidn __OUTPUT_FORMAT__,x64
%define WIN64 1
%else
%define UNIX64 1
%endif
%endif
%ifidn __OUTPUT_FORMAT__,elf32
%define mangle(x) x
%elifidn __OUTPUT_FORMAT__,elf64
%define mangle(x) x
%elifidn __OUTPUT_FORMAT__,elf
%define mangle(x) x
%elifidn __OUTPUT_FORMAT__,x64
%define mangle(x) x
%elifidn __OUTPUT_FORMAT__,win64
%define mangle(x) x
%else
%define mangle(x) _ %+ x
%endif
; FIXME: All of the 64bit asm functions that take a stride as an argument
; via register, assume that the high dword of that register is filled with 0.
; This is true in practice (since we never do any 64bit arithmetic on strides,
; and x264's strides are all positive), but is not guaranteed by the ABI.
; Name of the .rodata section.
; Kludge: Something on OS X fails to align .rodata even given an align attribute,
; so use a different read-only section.
%macro SECTION_RODATA 0-1 16
%ifidn __OUTPUT_FORMAT__,macho64
SECTION .text align=%1
%elifidn __OUTPUT_FORMAT__,macho
SECTION .text align=%1
fakegot:
%elifidn __OUTPUT_FORMAT__,aout
section .text
%else
SECTION .rodata align=%1
%endif
%endmacro
; aout does not support align=
%macro SECTION_TEXT 0-1 16
%ifidn __OUTPUT_FORMAT__,aout
SECTION .text
%else
SECTION .text align=%1
%endif
%endmacro
; PIC macros are copied from vpx_ports/x86_abi_support.asm. The "define PIC"
; from original code is added in for 64bit.
%ifidn __OUTPUT_FORMAT__,elf32
%define ABI_IS_32BIT 1
%elifidn __OUTPUT_FORMAT__,macho32
%define ABI_IS_32BIT 1
%elifidn __OUTPUT_FORMAT__,win32
%define ABI_IS_32BIT 1
%elifidn __OUTPUT_FORMAT__,aout
%define ABI_IS_32BIT 1
%else
%define ABI_IS_32BIT 0
%endif
%if ABI_IS_32BIT
%if CONFIG_PIC=1
%ifidn __OUTPUT_FORMAT__,elf32
%define GET_GOT_SAVE_ARG 1
%define WRT_PLT wrt ..plt
%macro GET_GOT 1
extern _GLOBAL_OFFSET_TABLE_
push %1
call %%get_got
%%sub_offset:
jmp %%exitGG
%%get_got:
mov %1, [esp]
add %1, _GLOBAL_OFFSET_TABLE_ + $$ - %%sub_offset wrt ..gotpc
ret
%%exitGG:
%undef GLOBAL
%define GLOBAL(x) x + %1 wrt ..gotoff
%undef RESTORE_GOT
%define RESTORE_GOT pop %1
%endmacro
%elifidn __OUTPUT_FORMAT__,macho32
%define GET_GOT_SAVE_ARG 1
%macro GET_GOT 1
push %1
call %%get_got
%%get_got:
pop %1
%undef GLOBAL
%define GLOBAL(x) x + %1 - %%get_got
%undef RESTORE_GOT
%define RESTORE_GOT pop %1
%endmacro
%endif
%endif
%if ARCH_X86_64 == 0
%undef PIC
%endif
%else
%macro GET_GOT 1
%endmacro
%define GLOBAL(x) rel x
%define WRT_PLT wrt ..plt
%if WIN64
%define PIC
%elifidn __OUTPUT_FORMAT__,macho64
%define PIC
%elif CONFIG_PIC
%define PIC
%endif
%endif
%ifnmacro GET_GOT
%macro GET_GOT 1
%endmacro
%define GLOBAL(x) x
%endif
%ifndef RESTORE_GOT
%define RESTORE_GOT
%endif
%ifndef WRT_PLT
%define WRT_PLT
%endif
%ifdef PIC
default rel
%endif
; Done with PIC macros
; Always use long nops (reduces 0x90 spam in disassembly on x86_32)
%ifndef __NASM_VER__
CPU amdnop
%else
%use smartalign
ALIGNMODE k7
%endif
; Macros to eliminate most code duplication between x86_32 and x86_64:
; Currently this works only for leaf functions which load all their arguments
; into registers at the start, and make no other use of the stack. Luckily that
; covers most of x264's asm.
; PROLOGUE:
; %1 = number of arguments. loads them from stack if needed.
; %2 = number of registers used. pushes callee-saved regs if needed.
; %3 = number of xmm registers used. pushes callee-saved xmm regs if needed.
; %4 = list of names to define to registers
; PROLOGUE can also be invoked by adding the same options to cglobal
; e.g.
; cglobal foo, 2,3,0, dst, src, tmp
; declares a function (foo), taking two args (dst and src) and one local variable (tmp)
; TODO Some functions can use some args directly from the stack. If they're the
; last args then you can just not declare them, but if they're in the middle
; we need more flexible macro.
; RET:
; Pops anything that was pushed by PROLOGUE, and returns.
; REP_RET:
; Same, but if it doesn't pop anything it becomes a 2-byte ret, for athlons
; which are slow when a normal ret follows a branch.
; registers:
; rN and rNq are the native-size register holding function argument N
; rNd, rNw, rNb are dword, word, and byte size
; rNm is the original location of arg N (a register or on the stack), dword
; rNmp is native size
%macro DECLARE_REG 5-6
%define r%1q %2
%define r%1d %3
%define r%1w %4
%define r%1b %5
%if %0 == 5
%define r%1m %3
%define r%1mp %2
%elif ARCH_X86_64 ; memory
%define r%1m [rsp + stack_offset + %6]
%define r%1mp qword r %+ %1m
%else
%define r%1m [esp + stack_offset + %6]
%define r%1mp dword r %+ %1m
%endif
%define r%1 %2
%endmacro
%macro DECLARE_REG_SIZE 2
%define r%1q r%1
%define e%1q r%1
%define r%1d e%1
%define e%1d e%1
%define r%1w %1
%define e%1w %1
%define r%1b %2
%define e%1b %2
%if ARCH_X86_64 == 0
%define r%1 e%1
%endif
%endmacro
DECLARE_REG_SIZE ax, al
DECLARE_REG_SIZE bx, bl
DECLARE_REG_SIZE cx, cl
DECLARE_REG_SIZE dx, dl
DECLARE_REG_SIZE si, sil
DECLARE_REG_SIZE di, dil
DECLARE_REG_SIZE bp, bpl
; t# defines for when per-arch register allocation is more complex than just function arguments
%macro DECLARE_REG_TMP 1-*
%assign %%i 0
%rep %0
CAT_XDEFINE t, %%i, r%1
%assign %%i %%i+1
%rotate 1
%endrep
%endmacro
%macro DECLARE_REG_TMP_SIZE 0-*
%rep %0
%define t%1q t%1 %+ q
%define t%1d t%1 %+ d
%define t%1w t%1 %+ w
%define t%1b t%1 %+ b
%rotate 1
%endrep
%endmacro
DECLARE_REG_TMP_SIZE 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14
%if ARCH_X86_64
%define gprsize 8
%else
%define gprsize 4
%endif
%macro PUSH 1
push %1
%assign stack_offset stack_offset+gprsize
%endmacro
%macro POP 1
pop %1
%assign stack_offset stack_offset-gprsize
%endmacro
%macro PUSH_IF_USED 1-*
%rep %0
%if %1 < regs_used
PUSH r%1
%endif
%rotate 1
%endrep
%endmacro
%macro POP_IF_USED 1-*
%rep %0
%if %1 < regs_used
pop r%1
%endif
%rotate 1
%endrep
%endmacro
%macro LOAD_IF_USED 1-*
%rep %0
%if %1 < num_args
mov r%1, r %+ %1 %+ mp
%endif
%rotate 1
%endrep
%endmacro
%macro SUB 2
sub %1, %2
%ifidn %1, rsp
%assign stack_offset stack_offset+(%2)
%endif
%endmacro
%macro ADD 2
add %1, %2
%ifidn %1, rsp
%assign stack_offset stack_offset-(%2)
%endif
%endmacro
%macro movifnidn 2
%ifnidn %1, %2
mov %1, %2
%endif
%endmacro
%macro movsxdifnidn 2
%ifnidn %1, %2
movsxd %1, %2
%endif
%endmacro
%macro ASSERT 1
%if (%1) == 0
%error assert failed
%endif
%endmacro
%macro DEFINE_ARGS 0-*
%ifdef n_arg_names
%assign %%i 0
%rep n_arg_names
CAT_UNDEF arg_name %+ %%i, q
CAT_UNDEF arg_name %+ %%i, d
CAT_UNDEF arg_name %+ %%i, w
CAT_UNDEF arg_name %+ %%i, b
CAT_UNDEF arg_name %+ %%i, m
CAT_UNDEF arg_name %+ %%i, mp
CAT_UNDEF arg_name, %%i
%assign %%i %%i+1
%endrep
%endif
%xdefine %%stack_offset stack_offset
%undef stack_offset ; so that the current value of stack_offset doesn't get baked in by xdefine
%assign %%i 0
%rep %0
%xdefine %1q r %+ %%i %+ q
%xdefine %1d r %+ %%i %+ d
%xdefine %1w r %+ %%i %+ w
%xdefine %1b r %+ %%i %+ b
%xdefine %1m r %+ %%i %+ m
%xdefine %1mp r %+ %%i %+ mp
CAT_XDEFINE arg_name, %%i, %1
%assign %%i %%i+1
%rotate 1
%endrep
%xdefine stack_offset %%stack_offset
%assign n_arg_names %0
%endmacro
%if WIN64 ; Windows x64 ;=================================================
DECLARE_REG 0, rcx, ecx, cx, cl
DECLARE_REG 1, rdx, edx, dx, dl
DECLARE_REG 2, R8, R8D, R8W, R8B
DECLARE_REG 3, R9, R9D, R9W, R9B
DECLARE_REG 4, R10, R10D, R10W, R10B, 40
DECLARE_REG 5, R11, R11D, R11W, R11B, 48
DECLARE_REG 6, rax, eax, ax, al, 56
DECLARE_REG 7, rdi, edi, di, dil, 64
DECLARE_REG 8, rsi, esi, si, sil, 72
DECLARE_REG 9, rbx, ebx, bx, bl, 80
DECLARE_REG 10, rbp, ebp, bp, bpl, 88
DECLARE_REG 11, R12, R12D, R12W, R12B, 96
DECLARE_REG 12, R13, R13D, R13W, R13B, 104
DECLARE_REG 13, R14, R14D, R14W, R14B, 112
DECLARE_REG 14, R15, R15D, R15W, R15B, 120
%macro PROLOGUE 2-4+ 0 ; #args, #regs, #xmm_regs, arg_names...
%assign num_args %1
%assign regs_used %2
ASSERT regs_used >= num_args
ASSERT regs_used <= 15
PUSH_IF_USED 7, 8, 9, 10, 11, 12, 13, 14
%if mmsize == 8
%assign xmm_regs_used 0
%else
WIN64_SPILL_XMM %3
%endif
LOAD_IF_USED 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
DEFINE_ARGS %4
%endmacro
%macro WIN64_SPILL_XMM 1
%assign xmm_regs_used %1
ASSERT xmm_regs_used <= 16
%if xmm_regs_used > 6
SUB rsp, (xmm_regs_used-6)*16+16
%assign %%i xmm_regs_used
%rep (xmm_regs_used-6)
%assign %%i %%i-1
movdqa [rsp + (%%i-6)*16+(~stack_offset&8)], xmm %+ %%i
%endrep
%endif
%endmacro
%macro WIN64_RESTORE_XMM_INTERNAL 1
%if xmm_regs_used > 6
%assign %%i xmm_regs_used
%rep (xmm_regs_used-6)
%assign %%i %%i-1
movdqa xmm %+ %%i, [%1 + (%%i-6)*16+(~stack_offset&8)]
%endrep
add %1, (xmm_regs_used-6)*16+16
%endif
%endmacro
%macro WIN64_RESTORE_XMM 1
WIN64_RESTORE_XMM_INTERNAL %1
%assign stack_offset stack_offset-(xmm_regs_used-6)*16+16
%assign xmm_regs_used 0
%endmacro
%macro RET 0
WIN64_RESTORE_XMM_INTERNAL rsp
POP_IF_USED 14, 13, 12, 11, 10, 9, 8, 7
ret
%endmacro
%macro REP_RET 0
%if regs_used > 7 || xmm_regs_used > 6
RET
%else
rep ret
%endif
%endmacro
%elif ARCH_X86_64 ; *nix x64 ;=============================================
DECLARE_REG 0, rdi, edi, di, dil
DECLARE_REG 1, rsi, esi, si, sil
DECLARE_REG 2, rdx, edx, dx, dl
DECLARE_REG 3, rcx, ecx, cx, cl
DECLARE_REG 4, R8, R8D, R8W, R8B
DECLARE_REG 5, R9, R9D, R9W, R9B
DECLARE_REG 6, rax, eax, ax, al, 8
DECLARE_REG 7, R10, R10D, R10W, R10B, 16
DECLARE_REG 8, R11, R11D, R11W, R11B, 24
DECLARE_REG 9, rbx, ebx, bx, bl, 32
DECLARE_REG 10, rbp, ebp, bp, bpl, 40
DECLARE_REG 11, R12, R12D, R12W, R12B, 48
DECLARE_REG 12, R13, R13D, R13W, R13B, 56
DECLARE_REG 13, R14, R14D, R14W, R14B, 64
DECLARE_REG 14, R15, R15D, R15W, R15B, 72
%macro PROLOGUE 2-4+ ; #args, #regs, #xmm_regs, arg_names...
%assign num_args %1
%assign regs_used %2
ASSERT regs_used >= num_args
ASSERT regs_used <= 15
PUSH_IF_USED 9, 10, 11, 12, 13, 14
LOAD_IF_USED 6, 7, 8, 9, 10, 11, 12, 13, 14
DEFINE_ARGS %4
%endmacro
%macro RET 0
POP_IF_USED 14, 13, 12, 11, 10, 9
ret
%endmacro
%macro REP_RET 0
%if regs_used > 9
RET
%else
rep ret
%endif
%endmacro
%else ; X86_32 ;==============================================================
DECLARE_REG 0, eax, eax, ax, al, 4
DECLARE_REG 1, ecx, ecx, cx, cl, 8
DECLARE_REG 2, edx, edx, dx, dl, 12
DECLARE_REG 3, ebx, ebx, bx, bl, 16
DECLARE_REG 4, esi, esi, si, null, 20
DECLARE_REG 5, edi, edi, di, null, 24
DECLARE_REG 6, ebp, ebp, bp, null, 28
%define rsp esp
%macro DECLARE_ARG 1-*
%rep %0
%define r%1m [esp + stack_offset + 4*%1 + 4]
%define r%1mp dword r%1m
%rotate 1
%endrep
%endmacro
DECLARE_ARG 7, 8, 9, 10, 11, 12, 13, 14
%macro PROLOGUE 2-4+ ; #args, #regs, #xmm_regs, arg_names...
%assign num_args %1
%assign regs_used %2
%if regs_used > 7
%assign regs_used 7
%endif
ASSERT regs_used >= num_args
PUSH_IF_USED 3, 4, 5, 6
LOAD_IF_USED 0, 1, 2, 3, 4, 5, 6
DEFINE_ARGS %4
%endmacro
%macro RET 0
POP_IF_USED 6, 5, 4, 3
ret
%endmacro
%macro REP_RET 0
%if regs_used > 3
RET
%else
rep ret
%endif
%endmacro
%endif ;======================================================================
%if WIN64 == 0
%macro WIN64_SPILL_XMM 1
%endmacro
%macro WIN64_RESTORE_XMM 1
%endmacro
%endif
;=============================================================================
; arch-independent part
;=============================================================================
%assign function_align 16
; Begin a function.
; Applies any symbol mangling needed for C linkage, and sets up a define such that
; subsequent uses of the function name automatically refer to the mangled version.
; Appends cpuflags to the function name if cpuflags has been specified.
%macro cglobal 1-2+ ; name, [PROLOGUE args]
%if %0 == 1
cglobal_internal %1 %+ SUFFIX
%else
cglobal_internal %1 %+ SUFFIX, %2
%endif
%endmacro
%macro cglobal_internal 1-2+
%ifndef cglobaled_%1
%xdefine %1 mangle(program_name %+ _ %+ %1)
%xdefine %1.skip_prologue %1 %+ .skip_prologue
CAT_XDEFINE cglobaled_, %1, 1
%endif
%xdefine current_function %1
%ifidn __OUTPUT_FORMAT__,elf
global %1:function hidden
%elifidn __OUTPUT_FORMAT__,elf32
global %1:function hidden
%elifidn __OUTPUT_FORMAT__,elf64
global %1:function hidden
%elifidn __OUTPUT_FORMAT__,macho32
global %1:private_extern
%elifidn __OUTPUT_FORMAT__,macho64
global %1:private_extern
%else
global %1
%endif
align function_align
%1:
RESET_MM_PERMUTATION ; not really needed, but makes disassembly somewhat nicer
%assign stack_offset 0
%if %0 > 1
PROLOGUE %2
%endif
%endmacro
%macro cextern 1
%xdefine %1 mangle(program_name %+ _ %+ %1)
CAT_XDEFINE cglobaled_, %1, 1
extern %1
%endmacro
; like cextern, but without the prefix
%macro cextern_naked 1
%xdefine %1 mangle(%1)
CAT_XDEFINE cglobaled_, %1, 1
extern %1
%endmacro
%macro const 2+
%xdefine %1 mangle(program_name %+ _ %+ %1)
global %1
%1: %2
%endmacro
; This is needed for ELF, otherwise the GNU linker assumes the stack is
; executable by default.
%ifidn __OUTPUT_FORMAT__,elf
SECTION .note.GNU-stack noalloc noexec nowrite progbits
%elifidn __OUTPUT_FORMAT__,elf32
SECTION .note.GNU-stack noalloc noexec nowrite progbits
%elifidn __OUTPUT_FORMAT__,elf64
SECTION .note.GNU-stack noalloc noexec nowrite progbits
%endif
; cpuflags
%assign cpuflags_mmx (1<<0)
%assign cpuflags_mmx2 (1<<1) | cpuflags_mmx
%assign cpuflags_3dnow (1<<2) | cpuflags_mmx
%assign cpuflags_3dnow2 (1<<3) | cpuflags_3dnow
%assign cpuflags_sse (1<<4) | cpuflags_mmx2
%assign cpuflags_sse2 (1<<5) | cpuflags_sse
%assign cpuflags_sse2slow (1<<6) | cpuflags_sse2
%assign cpuflags_sse3 (1<<7) | cpuflags_sse2
%assign cpuflags_ssse3 (1<<8) | cpuflags_sse3
%assign cpuflags_sse4 (1<<9) | cpuflags_ssse3
%assign cpuflags_sse42 (1<<10)| cpuflags_sse4
%assign cpuflags_avx (1<<11)| cpuflags_sse42
%assign cpuflags_xop (1<<12)| cpuflags_avx
%assign cpuflags_fma4 (1<<13)| cpuflags_avx
%assign cpuflags_cache32 (1<<16)
%assign cpuflags_cache64 (1<<17)
%assign cpuflags_slowctz (1<<18)
%assign cpuflags_lzcnt (1<<19)
%assign cpuflags_misalign (1<<20)
%assign cpuflags_aligned (1<<21) ; not a cpu feature, but a function variant
%assign cpuflags_atom (1<<22)
%define cpuflag(x) ((cpuflags & (cpuflags_ %+ x)) == (cpuflags_ %+ x))
%define notcpuflag(x) ((cpuflags & (cpuflags_ %+ x)) != (cpuflags_ %+ x))
; Takes up to 2 cpuflags from the above list.
; All subsequent functions (up to the next INIT_CPUFLAGS) is built for the specified cpu.
; You shouldn't need to invoke this macro directly, it's a subroutine for INIT_MMX &co.
%macro INIT_CPUFLAGS 0-2
%if %0 >= 1
%xdefine cpuname %1
%assign cpuflags cpuflags_%1
%if %0 >= 2
%xdefine cpuname %1_%2
%assign cpuflags cpuflags | cpuflags_%2
%endif
%xdefine SUFFIX _ %+ cpuname
%if cpuflag(avx)
%assign avx_enabled 1
%endif
%if mmsize == 16 && notcpuflag(sse2)
%define mova movaps
%define movu movups
%define movnta movntps
%endif
%if cpuflag(aligned)
%define movu mova
%elifidn %1, sse3
%define movu lddqu
%endif
%else
%xdefine SUFFIX
%undef cpuname
%undef cpuflags
%endif
%endmacro
; merge mmx and sse*
%macro CAT_XDEFINE 3
%xdefine %1%2 %3
%endmacro
%macro CAT_UNDEF 2
%undef %1%2
%endmacro
%macro INIT_MMX 0-1+
%assign avx_enabled 0
%define RESET_MM_PERMUTATION INIT_MMX %1
%define mmsize 8
%define num_mmregs 8
%define mova movq
%define movu movq
%define movh movd
%define movnta movntq
%assign %%i 0
%rep 8
CAT_XDEFINE m, %%i, mm %+ %%i
CAT_XDEFINE nmm, %%i, %%i
%assign %%i %%i+1
%endrep
%rep 8
CAT_UNDEF m, %%i
CAT_UNDEF nmm, %%i
%assign %%i %%i+1
%endrep
INIT_CPUFLAGS %1
%endmacro
%macro INIT_XMM 0-1+
%assign avx_enabled 0
%define RESET_MM_PERMUTATION INIT_XMM %1
%define mmsize 16
%define num_mmregs 8
%if ARCH_X86_64
%define num_mmregs 16
%endif
%define mova movdqa
%define movu movdqu
%define movh movq
%define movnta movntdq
%assign %%i 0
%rep num_mmregs
CAT_XDEFINE m, %%i, xmm %+ %%i
CAT_XDEFINE nxmm, %%i, %%i
%assign %%i %%i+1
%endrep
INIT_CPUFLAGS %1
%endmacro
; FIXME: INIT_AVX can be replaced by INIT_XMM avx
%macro INIT_AVX 0
INIT_XMM
%assign avx_enabled 1
%define PALIGNR PALIGNR_SSSE3
%define RESET_MM_PERMUTATION INIT_AVX
%endmacro
%macro INIT_YMM 0-1+
%assign avx_enabled 1
%define RESET_MM_PERMUTATION INIT_YMM %1
%define mmsize 32
%define num_mmregs 8
%if ARCH_X86_64
%define num_mmregs 16
%endif
%define mova vmovaps
%define movu vmovups
%undef movh
%define movnta vmovntps
%assign %%i 0
%rep num_mmregs
CAT_XDEFINE m, %%i, ymm %+ %%i
CAT_XDEFINE nymm, %%i, %%i
%assign %%i %%i+1
%endrep
INIT_CPUFLAGS %1
%endmacro
INIT_XMM
; I often want to use macros that permute their arguments. e.g. there's no
; efficient way to implement butterfly or transpose or dct without swapping some
; arguments.
;
; I would like to not have to manually keep track of the permutations:
; If I insert a permutation in the middle of a function, it should automatically
; change everything that follows. For more complex macros I may also have multiple
; implementations, e.g. the SSE2 and SSSE3 versions may have different permutations.
;
; Hence these macros. Insert a PERMUTE or some SWAPs at the end of a macro that
; permutes its arguments. It's equivalent to exchanging the contents of the
; registers, except that this way you exchange the register names instead, so it
; doesn't cost any cycles.
%macro PERMUTE 2-* ; takes a list of pairs to swap
%rep %0/2
%xdefine tmp%2 m%2
%xdefine ntmp%2 nm%2
%rotate 2
%endrep
%rep %0/2
%xdefine m%1 tmp%2
%xdefine nm%1 ntmp%2
%undef tmp%2
%undef ntmp%2
%rotate 2
%endrep
%endmacro
%macro SWAP 2-* ; swaps a single chain (sometimes more concise than pairs)
%rep %0-1
%ifdef m%1
%xdefine tmp m%1
%xdefine m%1 m%2
%xdefine m%2 tmp
CAT_XDEFINE n, m%1, %1
CAT_XDEFINE n, m%2, %2
%else
; If we were called as "SWAP m0,m1" rather than "SWAP 0,1" infer the original numbers here.
; Be careful using this mode in nested macros though, as in some cases there may be
; other copies of m# that have already been dereferenced and don't get updated correctly.
%xdefine %%n1 n %+ %1
%xdefine %%n2 n %+ %2
%xdefine tmp m %+ %%n1
CAT_XDEFINE m, %%n1, m %+ %%n2
CAT_XDEFINE m, %%n2, tmp
CAT_XDEFINE n, m %+ %%n1, %%n1
CAT_XDEFINE n, m %+ %%n2, %%n2
%endif
%undef tmp
%rotate 1
%endrep
%endmacro
; If SAVE_MM_PERMUTATION is placed at the end of a function, then any later
; calls to that function will automatically load the permutation, so values can
; be returned in mmregs.
%macro SAVE_MM_PERMUTATION 0-1
%if %0
%xdefine %%f %1_m
%else
%xdefine %%f current_function %+ _m
%endif
%assign %%i 0
%rep num_mmregs
CAT_XDEFINE %%f, %%i, m %+ %%i
%assign %%i %%i+1
%endrep
%endmacro
%macro LOAD_MM_PERMUTATION 1 ; name to load from
%ifdef %1_m0
%assign %%i 0
%rep num_mmregs
CAT_XDEFINE m, %%i, %1_m %+ %%i
CAT_XDEFINE n, m %+ %%i, %%i
%assign %%i %%i+1
%endrep
%endif
%endmacro
; Append cpuflags to the callee's name iff the appended name is known and the plain name isn't
%macro call 1
call_internal %1, %1 %+ SUFFIX
%endmacro
%macro call_internal 2
%xdefine %%i %1
%ifndef cglobaled_%1
%ifdef cglobaled_%2
%xdefine %%i %2
%endif
%endif
call %%i
LOAD_MM_PERMUTATION %%i
%endmacro
; Substitutions that reduce instruction size but are functionally equivalent
%macro add 2
%ifnum %2
%if %2==128
sub %1, -128
%else
add %1, %2
%endif
%else
add %1, %2
%endif
%endmacro
%macro sub 2
%ifnum %2
%if %2==128
add %1, -128
%else
sub %1, %2
%endif
%else
sub %1, %2
%endif
%endmacro
;=============================================================================
; AVX abstraction layer
;=============================================================================
%assign i 0
%rep 16
%if i < 8
CAT_XDEFINE sizeofmm, i, 8
%endif
CAT_XDEFINE sizeofxmm, i, 16
CAT_XDEFINE sizeofymm, i, 32
%assign i i+1
%endrep
%undef i
;%1 == instruction
;%2 == 1 if float, 0 if int
;%3 == 1 if 4-operand (xmm, xmm, xmm, imm), 0 if 2- or 3-operand (xmm, xmm, xmm)
;%4 == number of operands given
;%5+: operands
%macro RUN_AVX_INSTR 6-7+
%ifid %5
%define %%size sizeof%5
%else
%define %%size mmsize
%endif
%if %%size==32
%if %0 >= 7
v%1 %5, %6, %7
%else
v%1 %5, %6
%endif
%else
%if %%size==8
%define %%regmov movq
%elif %2
%define %%regmov movaps
%else
%define %%regmov movdqa
%endif
%if %4>=3+%3
%ifnidn %5, %6
%if avx_enabled && sizeof%5==16
v%1 %5, %6, %7
%else
%%regmov %5, %6
%1 %5, %7
%endif
%else
%1 %5, %7
%endif
%elif %3
%1 %5, %6, %7
%else
%1 %5, %6
%endif
%endif
%endmacro
; 3arg AVX ops with a memory arg can only have it in src2,
; whereas SSE emulation of 3arg prefers to have it in src1 (i.e. the mov).
; So, if the op is symmetric and the wrong one is memory, swap them.
%macro RUN_AVX_INSTR1 8
%assign %%swap 0
%if avx_enabled
%ifnid %6
%assign %%swap 1
%endif
%elifnidn %5, %6
%ifnid %7
%assign %%swap 1
%endif
%endif
%if %%swap && %3 == 0 && %8 == 1
RUN_AVX_INSTR %1, %2, %3, %4, %5, %7, %6
%else
RUN_AVX_INSTR %1, %2, %3, %4, %5, %6, %7
%endif
%endmacro
;%1 == instruction
;%2 == 1 if float, 0 if int
;%3 == 1 if 4-operand (xmm, xmm, xmm, imm), 0 if 3-operand (xmm, xmm, xmm)
;%4 == 1 if symmetric (i.e. doesn't matter which src arg is which), 0 if not
%macro AVX_INSTR 4
%macro %1 2-9 fnord, fnord, fnord, %1, %2, %3, %4
%ifidn %3, fnord
RUN_AVX_INSTR %6, %7, %8, 2, %1, %2
%elifidn %4, fnord
RUN_AVX_INSTR1 %6, %7, %8, 3, %1, %2, %3, %9
%elifidn %5, fnord
RUN_AVX_INSTR %6, %7, %8, 4, %1, %2, %3, %4
%else
RUN_AVX_INSTR %6, %7, %8, 5, %1, %2, %3, %4, %5
%endif
%endmacro
%endmacro
AVX_INSTR addpd, 1, 0, 1
AVX_INSTR addps, 1, 0, 1
AVX_INSTR addsd, 1, 0, 1
AVX_INSTR addss, 1, 0, 1
AVX_INSTR addsubpd, 1, 0, 0
AVX_INSTR addsubps, 1, 0, 0
AVX_INSTR andpd, 1, 0, 1
AVX_INSTR andps, 1, 0, 1
AVX_INSTR andnpd, 1, 0, 0
AVX_INSTR andnps, 1, 0, 0
AVX_INSTR blendpd, 1, 0, 0
AVX_INSTR blendps, 1, 0, 0
AVX_INSTR blendvpd, 1, 0, 0
AVX_INSTR blendvps, 1, 0, 0
AVX_INSTR cmppd, 1, 0, 0
AVX_INSTR cmpps, 1, 0, 0
AVX_INSTR cmpsd, 1, 0, 0
AVX_INSTR cmpss, 1, 0, 0
AVX_INSTR cvtdq2ps, 1, 0, 0
AVX_INSTR cvtps2dq, 1, 0, 0
AVX_INSTR divpd, 1, 0, 0
AVX_INSTR divps, 1, 0, 0
AVX_INSTR divsd, 1, 0, 0
AVX_INSTR divss, 1, 0, 0
AVX_INSTR dppd, 1, 1, 0
AVX_INSTR dpps, 1, 1, 0
AVX_INSTR haddpd, 1, 0, 0
AVX_INSTR haddps, 1, 0, 0
AVX_INSTR hsubpd, 1, 0, 0
AVX_INSTR hsubps, 1, 0, 0
AVX_INSTR maxpd, 1, 0, 1
AVX_INSTR maxps, 1, 0, 1
AVX_INSTR maxsd, 1, 0, 1
AVX_INSTR maxss, 1, 0, 1
AVX_INSTR minpd, 1, 0, 1
AVX_INSTR minps, 1, 0, 1
AVX_INSTR minsd, 1, 0, 1
AVX_INSTR minss, 1, 0, 1
AVX_INSTR movhlps, 1, 0, 0
AVX_INSTR movlhps, 1, 0, 0
AVX_INSTR movsd, 1, 0, 0
AVX_INSTR movss, 1, 0, 0
AVX_INSTR mpsadbw, 0, 1, 0
AVX_INSTR mulpd, 1, 0, 1
AVX_INSTR mulps, 1, 0, 1
AVX_INSTR mulsd, 1, 0, 1
AVX_INSTR mulss, 1, 0, 1
AVX_INSTR orpd, 1, 0, 1
AVX_INSTR orps, 1, 0, 1
AVX_INSTR packsswb, 0, 0, 0
AVX_INSTR packssdw, 0, 0, 0
AVX_INSTR packuswb, 0, 0, 0
AVX_INSTR packusdw, 0, 0, 0
AVX_INSTR paddb, 0, 0, 1
AVX_INSTR paddw, 0, 0, 1
AVX_INSTR paddd, 0, 0, 1
AVX_INSTR paddq, 0, 0, 1
AVX_INSTR paddsb, 0, 0, 1
AVX_INSTR paddsw, 0, 0, 1
AVX_INSTR paddusb, 0, 0, 1
AVX_INSTR paddusw, 0, 0, 1
AVX_INSTR palignr, 0, 1, 0
AVX_INSTR pand, 0, 0, 1
AVX_INSTR pandn, 0, 0, 0
AVX_INSTR pavgb, 0, 0, 1
AVX_INSTR pavgw, 0, 0, 1
AVX_INSTR pblendvb, 0, 0, 0
AVX_INSTR pblendw, 0, 1, 0
AVX_INSTR pcmpestri, 0, 0, 0
AVX_INSTR pcmpestrm, 0, 0, 0
AVX_INSTR pcmpistri, 0, 0, 0
AVX_INSTR pcmpistrm, 0, 0, 0
AVX_INSTR pcmpeqb, 0, 0, 1
AVX_INSTR pcmpeqw, 0, 0, 1
AVX_INSTR pcmpeqd, 0, 0, 1
AVX_INSTR pcmpeqq, 0, 0, 1
AVX_INSTR pcmpgtb, 0, 0, 0
AVX_INSTR pcmpgtw, 0, 0, 0
AVX_INSTR pcmpgtd, 0, 0, 0
AVX_INSTR pcmpgtq, 0, 0, 0
AVX_INSTR phaddw, 0, 0, 0
AVX_INSTR phaddd, 0, 0, 0
AVX_INSTR phaddsw, 0, 0, 0
AVX_INSTR phsubw, 0, 0, 0
AVX_INSTR phsubd, 0, 0, 0
AVX_INSTR phsubsw, 0, 0, 0
AVX_INSTR pmaddwd, 0, 0, 1
AVX_INSTR pmaddubsw, 0, 0, 0
AVX_INSTR pmaxsb, 0, 0, 1
AVX_INSTR pmaxsw, 0, 0, 1
AVX_INSTR pmaxsd, 0, 0, 1
AVX_INSTR pmaxub, 0, 0, 1
AVX_INSTR pmaxuw, 0, 0, 1
AVX_INSTR pmaxud, 0, 0, 1
AVX_INSTR pminsb, 0, 0, 1
AVX_INSTR pminsw, 0, 0, 1
AVX_INSTR pminsd, 0, 0, 1
AVX_INSTR pminub, 0, 0, 1
AVX_INSTR pminuw, 0, 0, 1
AVX_INSTR pminud, 0, 0, 1
AVX_INSTR pmulhuw, 0, 0, 1
AVX_INSTR pmulhrsw, 0, 0, 1
AVX_INSTR pmulhw, 0, 0, 1
AVX_INSTR pmullw, 0, 0, 1
AVX_INSTR pmulld, 0, 0, 1
AVX_INSTR pmuludq, 0, 0, 1
AVX_INSTR pmuldq, 0, 0, 1
AVX_INSTR por, 0, 0, 1
AVX_INSTR psadbw, 0, 0, 1
AVX_INSTR pshufb, 0, 0, 0
AVX_INSTR psignb, 0, 0, 0
AVX_INSTR psignw, 0, 0, 0
AVX_INSTR psignd, 0, 0, 0
AVX_INSTR psllw, 0, 0, 0
AVX_INSTR pslld, 0, 0, 0
AVX_INSTR psllq, 0, 0, 0
AVX_INSTR pslldq, 0, 0, 0
AVX_INSTR psraw, 0, 0, 0
AVX_INSTR psrad, 0, 0, 0
AVX_INSTR psrlw, 0, 0, 0
AVX_INSTR psrld, 0, 0, 0
AVX_INSTR psrlq, 0, 0, 0
AVX_INSTR psrldq, 0, 0, 0
AVX_INSTR psubb, 0, 0, 0
AVX_INSTR psubw, 0, 0, 0
AVX_INSTR psubd, 0, 0, 0
AVX_INSTR psubq, 0, 0, 0
AVX_INSTR psubsb, 0, 0, 0
AVX_INSTR psubsw, 0, 0, 0
AVX_INSTR psubusb, 0, 0, 0
AVX_INSTR psubusw, 0, 0, 0
AVX_INSTR punpckhbw, 0, 0, 0
AVX_INSTR punpckhwd, 0, 0, 0
AVX_INSTR punpckhdq, 0, 0, 0
AVX_INSTR punpckhqdq, 0, 0, 0
AVX_INSTR punpcklbw, 0, 0, 0
AVX_INSTR punpcklwd, 0, 0, 0
AVX_INSTR punpckldq, 0, 0, 0
AVX_INSTR punpcklqdq, 0, 0, 0
AVX_INSTR pxor, 0, 0, 1
AVX_INSTR shufps, 1, 1, 0
AVX_INSTR subpd, 1, 0, 0
AVX_INSTR subps, 1, 0, 0
AVX_INSTR subsd, 1, 0, 0
AVX_INSTR subss, 1, 0, 0
AVX_INSTR unpckhpd, 1, 0, 0
AVX_INSTR unpckhps, 1, 0, 0
AVX_INSTR unpcklpd, 1, 0, 0
AVX_INSTR unpcklps, 1, 0, 0
AVX_INSTR xorpd, 1, 0, 1
AVX_INSTR xorps, 1, 0, 1
; 3DNow instructions, for sharing code between AVX, SSE and 3DN
AVX_INSTR pfadd, 1, 0, 1
AVX_INSTR pfsub, 1, 0, 0
AVX_INSTR pfmul, 1, 0, 1
; base-4 constants for shuffles
%assign i 0
%rep 256
%assign j ((i>>6)&3)*1000 + ((i>>4)&3)*100 + ((i>>2)&3)*10 + (i&3)
%if j < 10
CAT_XDEFINE q000, j, i
%elif j < 100
CAT_XDEFINE q00, j, i
%elif j < 1000
CAT_XDEFINE q0, j, i
%else
CAT_XDEFINE q, j, i
%endif
%assign i i+1
%endrep
%undef i
%undef j
%macro FMA_INSTR 3
%macro %1 4-7 %1, %2, %3
%if cpuflag(xop)
v%5 %1, %2, %3, %4
%else
%6 %1, %2, %3
%7 %1, %4
%endif
%endmacro
%endmacro
FMA_INSTR pmacsdd, pmulld, paddd
FMA_INSTR pmacsww, pmullw, paddw
FMA_INSTR pmadcswd, pmaddwd, paddd