[Support/BLAKE3] quick fix for Cygwin build#148635
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@llvm/pr-subscribers-llvm-support Author: Tomohiro Kashiwada (kikairoya) ChangesBLAKE3 1.8.2 ( imported in d2ad63a ) fails to build for the Cygwin target. As a temporary workaround, add resolves #148365 Full diff: https://github.com/llvm/llvm-project/pull/148635.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 |
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Could we get this into llvm 21? |
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/cherry-pick 8de61eb |
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/pull-request #149408 |
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/123/builds/23606 Here is the relevant piece of the build log for the reference |
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Jul 22, 2025
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)
This was referenced Jul 23, 2025
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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 #148365