Skip to content

[AArch64][compiler-rt] Add LSE support for Windows. #116706

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 2 commits into from
Nov 20, 2024
Merged

[AArch64][compiler-rt] Add LSE support for Windows. #116706

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
3a11a86
[AArch64] Add LSE support for Windows.
DanielKristofKiss Nov 18, 2024
cb584eb
clangformat.
DanielKristofKiss Nov 18, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions compiler-rt/lib/builtins/cpu_model/aarch64.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,8 @@ _Bool __aarch64_have_lse_atomics
#elif defined(__linux__) && __has_include(<sys/auxv.h>)
#include "aarch64/hwcap.inc"
#include "aarch64/lse_atomics/getauxval.inc"
#elif defined(_WIN32)
#include "aarch64/lse_atomics/windows.inc"
#else
// When unimplemented, we leave __aarch64_have_lse_atomics initialized to false.
#endif
Expand Down
12 changes: 12 additions & 0 deletions compiler-rt/lib/builtins/cpu_model/aarch64/lse_atomics/windows.inc
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <processthreadsapi.h>

#ifndef PF_ARM_V81_ATOMIC_INSTRUCTIONS_AVAILABLE
#define PF_ARM_V81_ATOMIC_INSTRUCTIONS_AVAILABLE 34
#endif

static void CONSTRUCTOR_ATTRIBUTE init_have_lse_atomics(void) {
if (IsProcessorFeaturePresent(PF_ARM_V81_ATOMIC_INSTRUCTIONS_AVAILABLE))
__aarch64_have_lse_atomics = true;
}
Loading