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libFLAC/cpu.c: More pre-processor cleanups

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This commit is contained in:
Erik de Castro Lopo 2016-06-25 17:02:06 +10:00
parent 36a0ab100d
commit 23778a3a60
1 changed files with 36 additions and 39 deletions
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75
src/libFLAC/cpu.c
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@ -37,12 +37,36 @@
#include "private/cpu.h"
#include <stdlib.h>
#include <memory.h>
#ifdef DEBUG
# include <stdio.h>
# include <stdio.h>
#endif
#if defined (__NetBSD__) || defined(__OpenBSD__)
# include <sys/param.h>
# include <sys/sysctl.h>
# include <machine/cpu.h>
#endif
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) || defined(__APPLE__)
# include <sys/types.h>
# include <sys/sysctl.h>
#endif
#if defined(__linux__) && defined(FLAC__CPU_IA32) && !defined FLAC__NO_ASM && (defined FLAC__HAS_NASM || FLAC__HAS_X86INTRIN) && !FLAC__SSE_OS
# include <sys/ucontext.h>
#endif
#if defined(_MSC_VER)
# include <windows.h>
# include <intrin.h> /* for __cpuid() and _xgetbv() */
#endif
#if defined __GNUC__ && defined HAVE_CPUID_H
# include <cpuid.h> /* for __get_cpuid() and __get_cpuid_max() */
#endif
#if defined FLAC__CPU_IA32
# include <signal.h>
static void disable_sse(FLAC__CPUInfo *info)
{
@ -71,17 +95,6 @@ static void disable_avx(FLAC__CPUInfo *info)
}
#endif
#if defined (__NetBSD__) || defined(__OpenBSD__)
#include <sys/param.h>
#include <sys/sysctl.h>
#include <machine/cpu.h>
#endif
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) || defined(__APPLE__)
#include <sys/types.h>
#include <sys/sysctl.h>
#endif
#ifdef FLAC__CPU_IA32
/* these are flags in EDX of CPUID AX=00000001 */
static const unsigned FLAC__CPUINFO_IA32_CPUID_CMOV = 0x00008000;
@ -109,8 +122,7 @@ static const unsigned FLAC__CPUINFO_IA32_CPUID_AVX2 = 0x00000020;
/*
* Extra stuff needed for detection of OS support for SSE on IA-32
*/
#if defined(FLAC__CPU_IA32) && !defined FLAC__NO_ASM && (defined FLAC__HAS_NASM || FLAC__HAS_X86INTRIN) && !FLAC__SSE_OS
# if defined(__linux__)
#if defined(__linux__) && defined(FLAC__CPU_IA32) && !defined FLAC__NO_ASM && (defined FLAC__HAS_NASM || FLAC__HAS_X86INTRIN) && !FLAC__SSE_OS
/*
* If the OS doesn't support SSE, we will get here with a SIGILL. We
* modify the return address to jump over the offending SSE instruction
@ -124,15 +136,11 @@ static const unsigned FLAC__CPUINFO_IA32_CPUID_AVX2 = 0x00000020;
* 6 bytes extra in case our estimate is wrong
* 12 bytes puts us in the NOP "landing zone"
*/
# include <sys/ucontext.h>
static void sigill_handler_sse_os(int signal, siginfo_t *si, void *uc)
{
(void)signal, (void)si;
((ucontext_t*)uc)->uc_mcontext.gregs[14/*REG_EIP*/] += 3 + 3 + 6;
}
# elif defined(_MSC_VER)
# include <windows.h>
# endif
static void sigill_handler_sse_os(int signal, siginfo_t *si, void *uc)
{
(void)signal, (void)si;
((ucontext_t*)uc)->uc_mcontext.gregs[14/*REG_EIP*/] += 3 + 3 + 6;
}
#endif
@ -206,10 +214,7 @@ void FLAC__cpu_info(FLAC__CPUInfo *info)
* now have to check for OS support of SSE instructions
*/
if(info->ia32.sse) {
#if !FLAC__SSE_OS
/* assume user knows better than us; turn it off */
disable_sse(info);
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) || defined(__APPLE__)
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) || defined(__APPLE__)
int sse = 0;
size_t len;
/* at least one of these must work: */
@ -407,18 +412,11 @@ void FLAC__cpu_info(FLAC__CPUInfo *info)
#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
#if defined _MSC_VER
#include <intrin.h> /* for __cpuid() and _xgetbv() */
#elif defined __GNUC__ && defined HAVE_CPUID_H
#include <cpuid.h> /* for __get_cpuid() and __get_cpuid_max() */
#endif
FLAC__uint32 FLAC__cpu_have_cpuid_x86(void)
{
#ifdef FLAC__CPU_X86_64
return 1;
#else
# if defined _MSC_VER || defined __INTEL_COMPILER /* Do they support CPUs w/o CPUID support (or OSes that work on those CPUs)? */
#elif defined _MSC_VER || defined __INTEL_COMPILER /* Do they support CPUs w/o CPUID support (or OSes that work on those CPUs)? */
FLAC__uint32 flags1, flags2;
__asm {
pushfd
@ -437,14 +435,13 @@ FLAC__uint32 FLAC__cpu_have_cpuid_x86(void)
return 1;
else
return 0;
# elif defined __GNUC__ && defined HAVE_CPUID_H
#elif defined __GNUC__ && defined HAVE_CPUID_H
if (__get_cpuid_max(0, 0) != 0)
return 1;
else
return 0;
# else
#else
return 0;
# endif
#endif
}