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x86/hweight: Use named operands in inline asm()

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No functional change intended.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250312123905.149298-1-ubizjak@gmail.com
This commit is contained in:
Uros Bizjak 2025-03-12 13:38:43 +01:00 committed by Ingo Molnar
parent 91d5451d97
commit 72899899e4
1 changed files with 6 additions and 6 deletions
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12
arch/x86/include/asm/arch_hweight.h
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@ -16,9 +16,9 @@ static __always_inline unsigned int __arch_hweight32(unsigned int w)
{
unsigned int res;
asm (ALTERNATIVE("call __sw_hweight32", "popcntl %1, %0", X86_FEATURE_POPCNT)
: "="REG_OUT (res)
: REG_IN (w));
asm (ALTERNATIVE("call __sw_hweight32", "popcntl %[val], %[cnt]", X86_FEATURE_POPCNT)
: [cnt] "=" REG_OUT (res)
: [val] REG_IN (w));
return res;
}
@ -44,9 +44,9 @@ static __always_inline unsigned long __arch_hweight64(__u64 w)
{
unsigned long res;
asm (ALTERNATIVE("call __sw_hweight64", "popcntq %1, %0", X86_FEATURE_POPCNT)
: "="REG_OUT (res)
: REG_IN (w));
asm (ALTERNATIVE("call __sw_hweight64", "popcntq %[val], %[cnt]", X86_FEATURE_POPCNT)
: [cnt] "=" REG_OUT (res)
: [val] REG_IN (w));
return res;
}