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Clang has __popcnt for ARM #112

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merged 1 commit into from Mar 5, 2023
Merged

Clang has __popcnt for ARM #112

merged 1 commit into from Mar 5, 2023

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zcbenz
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@zcbenz zcbenz commented Mar 3, 2023

When building on Windows with clang for ARM targets, __popcnt is defined.

When binding on Windows with clang for ARM targets, `__popcnt` is defined.
zcbenz added a commit to zcbenz/node that referenced this pull request Mar 3, 2023
zcbenz added a commit to zcbenz/node that referenced this pull request Mar 3, 2023
zcbenz added a commit to zcbenz/node that referenced this pull request Mar 3, 2023
zcbenz added a commit to zcbenz/node that referenced this pull request Mar 3, 2023
zcbenz added a commit to zcbenz/node that referenced this pull request Mar 4, 2023
@Keitagit-kun
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I'm building on Windows with mingw-w64 x86_64-7.2.0 for windows and __popcnt is also missing. So, maybe cover all cases like that:

#if !defined __popcnt
	static unsigned int __popcnt(unsigned int x) {
	  unsigned int c = 0;
	  for (; x; ++c) {
		x &= x - 1;
	  }
	  return c;
	}
#endif

"static" - so it wont interfere with ngtcp2...

@tatsuhiro-t
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It would be nice to add function detection to configure and cmake scripts to handle this generally.

@tatsuhiro-t tatsuhiro-t merged commit 439e5c4 into ngtcp2:main Mar 5, 2023
@tatsuhiro-t
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Thank you for PR. Merged now.

@tatsuhiro-t tatsuhiro-t modified the milestones: v0.9.0, v0.10.0 Mar 5, 2023
zcbenz added a commit to zcbenz/node that referenced this pull request Mar 13, 2023
nodejs-github-bot pushed a commit to nodejs/node that referenced this pull request Mar 19, 2023
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danielleadams pushed a commit to nodejs/node that referenced this pull request Jul 6, 2023
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3 participants