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Actually, delete the cpuid() inline asm entirely since it still causes various problems in various compilers

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This was SVN commit r9024.
This commit is contained in:
Ykkrosh
2011-03-05 14:11:57 +00:00
parent 712a92caa1
commit d3929b6af1
1 changed files with 0 additions and 21 deletions
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source/lib/sysdep/arch/x86_x64/x86_x64.cpp
-21
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@@ -48,8 +48,6 @@
#if MSC_VERSION >= 1500 // __cpuidex available (allows setting ecx beforehand)
# undef CPUID_INTRINSIC
# define CPUID_INTRINSIC 1
#elif GCC_VERSION
// (no additional includes needed)
#else
# if ARCH_AMD64
# include "lib/sysdep/arch/amd64/amd64_asm.h"
@@ -78,25 +76,6 @@ static void cpuid(x86_x64_CpuidRegs* regs)
cassert(sizeof(regs->eax) == sizeof(int));
cassert(sizeof(*regs) == 4*sizeof(int));
__cpuidex((int*)regs, regs->eax, regs->ecx);
#elif GCC_VERSION
// Need to preserve the PIC register (ebx/rbx) in case GCC is using it
# if ARCH_AMD64
__asm__ __volatile__ (
"pushq %%rbx\n"
"cpuid\n"
"movl %%ebx, %1\n"
"popq %%rbx\n"
: "=a" (regs->eax), "=m" (regs->ebx), "=c" (regs->ecx), "=d" (regs->edx)
: "a" (regs->eax), "c" (regs->ecx));
# else
__asm__ __volatile__ (
"pushl %%ebx\n"
"cpuid\n"
"movl %%ebx, %1\n"
"popl %%ebx\n"
: "=a" (regs->eax), "=m" (regs->ebx), "=c" (regs->ecx), "=d" (regs->edx)
: "a" (regs->eax), "c" (regs->ecx));
# endif
#else
# if ARCH_AMD64
amd64_asm_cpuid(regs);