diff options
| author | Henrik Gramner <henrik@gramner.com> | 2014-09-05 00:13:38 +0200 |
|---|---|---|
| committer | Diego Biurrun <diego@biurrun.de> | 2014-09-09 02:00:25 -0700 |
| commit | f629705b0239c80fddc1b0b15ed4bb9042c77d23 (patch) | |
| tree | 1bf5fce76960051767b7ae6c2dc272ec150927eb /libavutil/x86 | |
| parent | ec217218c27d53c5b323323e6ef862bcdbcabe5f (diff) | |
x86inc: Make INIT_CPUFLAGS support an arbitrary number of cpuflags
Previously there was a limit of two cpuflags.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Diffstat (limited to 'libavutil/x86')
| -rw-r--r-- | libavutil/x86/x86inc.asm | 41 |
1 files changed, 22 insertions, 19 deletions
diff --git a/libavutil/x86/x86inc.asm b/libavutil/x86/x86inc.asm index cfc5d99210..e3ed3813e0 100644 --- a/libavutil/x86/x86inc.asm +++ b/libavutil/x86/x86inc.asm @@ -99,9 +99,6 @@ %endif %endmacro -; Always use long nops (reduces 0x90 spam in disassembly on x86_32) -CPUNOP amdnop - ; 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 @@ -759,19 +756,26 @@ SECTION .note.GNU-stack noalloc noexec nowrite progbits %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. +; Takes an arbitrary number of 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 - CPUNOP amdnop +%macro INIT_CPUFLAGS 0-* + %xdefine SUFFIX + %undef cpuname + %assign cpuflags 0 + %if %0 >= 1 - %xdefine cpuname %1 - %assign cpuflags cpuflags_%1 - %if %0 >= 2 - %xdefine cpuname %1_%2 - %assign cpuflags cpuflags | cpuflags_%2 - %endif + %rep %0 + %ifdef cpuname + %xdefine cpuname cpuname %+ _%1 + %else + %xdefine cpuname %1 + %endif + %assign cpuflags cpuflags | cpuflags_%1 + %rotate 1 + %endrep %xdefine SUFFIX _ %+ cpuname + %if cpuflag(avx) %assign avx_enabled 1 %endif @@ -782,16 +786,15 @@ SECTION .note.GNU-stack noalloc noexec nowrite progbits %endif %if cpuflag(aligned) %define movu mova - %elifidn %1, sse3 + %elif cpuflag(sse3) && notcpuflag(ssse3) %define movu lddqu %endif - %if notcpuflag(sse2) - CPUNOP basicnop - %endif + %endif + + %if cpuflag(sse2) + CPUNOP amdnop %else - %xdefine SUFFIX - %undef cpuname - %undef cpuflags + CPUNOP basicnop %endif %endmacro |