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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-18 09:17:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-18 09:17:01 -0700 |
| commit | cb41838bbc4403f7270a94b93a9a0d9fc9c2e7ea (patch) | |
| tree | 0f359975ccad4ac72e86b8edf1924c076e74bd89 /arch/x86/Kconfig | |
| parent | 98f01720cbe3e2eb719682777049b6514e9db556 (diff) | |
| parent | c59bd5688299cddb71183e156e7a3c1409b90df2 (diff) | |
Merge branch 'core-hweight-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-hweight-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, hweight: Use a 32-bit popcnt for __arch_hweight32()
arch, hweight: Fix compilation errors
x86: Add optimized popcnt variants
bitops: Optimize hweight() by making use of compile-time evaluation
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 7b783887455..a2d3a5fbeed 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -237,6 +237,11 @@ config X86_32_LAZY_GS def_bool y depends on X86_32 && !CC_STACKPROTECTOR +config ARCH_HWEIGHT_CFLAGS + string + default "-fcall-saved-ecx -fcall-saved-edx" if X86_32 + default "-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11" if X86_64 + config KTIME_SCALAR def_bool X86_32 source "init/Kconfig" |