release/21.x: [Support/BLAKE3] quick fix for Cygwin build (#148635) #149408
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@Meinersbur What do you think about merging this PR to the release branch? |
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@llvm/pr-subscribers-llvm-support Author: None (llvmbot) ChangesBackport 8de61eb Requested by: @mstorsjo Full diff: https://github.com/llvm/llvm-project/pull/149408.diff 2 Files Affected:
diff --git a/llvm/lib/Support/BLAKE3/blake3_dispatch.c b/llvm/lib/Support/BLAKE3/blake3_dispatch.c
index d00580fe35195..19918aa708b2f 100644
--- a/llvm/lib/Support/BLAKE3/blake3_dispatch.c
+++ b/llvm/lib/Support/BLAKE3/blake3_dispatch.c
@@ -236,7 +236,7 @@ void blake3_xof_many(const uint32_t cv[8],
#if defined(IS_X86)
const enum cpu_feature features = get_cpu_features();
MAYBE_UNUSED(features);
-#if !defined(_WIN32) && !defined(BLAKE3_NO_AVX512)
+#if !defined(_WIN32) && !defined(__CYGWIN__) && !defined(BLAKE3_NO_AVX512)
if (features & AVX512VL) {
blake3_xof_many_avx512(cv, block, block_len, counter, flags, out, outblocks);
return;
diff --git a/llvm/lib/Support/BLAKE3/blake3_impl.h b/llvm/lib/Support/BLAKE3/blake3_impl.h
index deed079e468a5..dd71e729f208f 100644
--- a/llvm/lib/Support/BLAKE3/blake3_impl.h
+++ b/llvm/lib/Support/BLAKE3/blake3_impl.h
@@ -324,7 +324,7 @@ void blake3_hash_many_avx512(const uint8_t *const *inputs, size_t num_inputs,
uint8_t flags, uint8_t flags_start,
uint8_t flags_end, uint8_t *out);
-#if !defined(_WIN32)
+#if !defined(_WIN32) && !defined(__CYGWIN__)
LLVM_LIBRARY_VISIBILITY
void blake3_xof_many_avx512(const uint32_t cv[8],
const uint8_t block[BLAKE3_BLOCK_LEN],
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Meinersbur
approved these changes
Jul 21, 2025
github-project-automation
bot
moved this from Needs Triage
to Needs Merge
in LLVM Release Status
BLAKE3 1.8.2 ( imported in d2ad63a ) fails to build for the Cygwin target. see: BLAKE3-team/BLAKE3#494 As a temporary workaround, add `&& !defined(__CYGWIN__)` to BLAKE3 locally. resolves llvm#148365 (cherry picked from commit 8de61eb)
github-project-automation
bot
moved this from Needs Merge
to Done
in LLVM Release Status
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@mstorsjo (or anyone else). If you would like to add a note about this fix in the release notes (completely optional). Please reply to this comment with a one or two sentence description of the fix. When you are done, please add the release:note label to this PR. |
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Backport 8de61eb
Requested by: @mstorsjo