diff options
Diffstat (limited to 'www-client/chromium/files/chromium-104-v8-neon.patch')
-rw-r--r-- | www-client/chromium/files/chromium-104-v8-neon.patch | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/www-client/chromium/files/chromium-104-v8-neon.patch b/www-client/chromium/files/chromium-104-v8-neon.patch new file mode 100644 index 000000000000..ee573f8862e6 --- /dev/null +++ b/www-client/chromium/files/chromium-104-v8-neon.patch @@ -0,0 +1,72 @@ +From 0fc6592cf8867f0cd6d8d41b43392fb52d359649 Mon Sep 17 00:00:00 2001 +From: Jose Dapena Paz <jdapena@igalia.com> +Date: Tue, 07 Jun 2022 15:44:35 +0200 +Subject: [PATCH] GCC: fix compilation of NEON64 extract_first_nonzero_index + +GCC fails to compile extract_first_nonzero_index because of the +signedness type mismatch in the NEON intrinsics. + +Bug: chromium:819294 +Change-Id: I9b73e5fa1d5fbf161740ab1b5d77f5c494369dfa +Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3693709 +Reviewed-by: Toon Verwaest <verwaest@chromium.org> +Commit-Queue: José Dapena Paz <jdapena@igalia.com> +Cr-Commit-Position: refs/heads/main@{#81063} +--- + +diff --git a/v8/src/objects/simd.cc b/v8/src/objects/simd.cc +index d3cedfe..0a73b9c 100644 +--- a/v8/src/objects/simd.cc ++++ b/v8/src/objects/simd.cc +@@ -95,24 +95,21 @@ + } + + template <> +-inline int extract_first_nonzero_index(int32x4_t v) { +- int32x4_t mask = {4, 3, 2, 1}; ++inline int extract_first_nonzero_index(uint32x4_t v) { ++ uint32x4_t mask = {4, 3, 2, 1}; + mask = vandq_u32(mask, v); + return 4 - vmaxvq_u32(mask); + } + + template <> +-inline int extract_first_nonzero_index(int64x2_t v) { +- int32x4_t mask = {2, 0, 1, 0}; // Could also be {2,2,1,1} or {0,2,0,1} +- mask = vandq_u32(mask, vreinterpretq_s32_s64(v)); ++inline int extract_first_nonzero_index(uint64x2_t v) { ++ uint32x4_t mask = {2, 0, 1, 0}; // Could also be {2,2,1,1} or {0,2,0,1} ++ mask = vandq_u32(mask, vreinterpretq_u32_u64(v)); + return 2 - vmaxvq_u32(mask); + } + +-template <> +-inline int extract_first_nonzero_index(float64x2_t v) { +- int32x4_t mask = {2, 0, 1, 0}; // Could also be {2,2,1,1} or {0,2,0,1} +- mask = vandq_u32(mask, vreinterpretq_s32_f64(v)); +- return 2 - vmaxvq_u32(mask); ++inline int32_t reinterpret_vmaxvq_u64(uint64x2_t v) { ++ return vmaxvq_u32(vreinterpretq_u32_u64(v)); + } + #endif + +@@ -204,14 +201,14 @@ + } + #elif defined(NEON64) + if constexpr (std::is_same<T, uint32_t>::value) { +- VECTORIZED_LOOP_Neon(int32x4_t, int32x4_t, vdupq_n_u32, vceqq_u32, ++ VECTORIZED_LOOP_Neon(uint32x4_t, uint32x4_t, vdupq_n_u32, vceqq_u32, + vmaxvq_u32) + } else if constexpr (std::is_same<T, uint64_t>::value) { +- VECTORIZED_LOOP_Neon(int64x2_t, int64x2_t, vdupq_n_u64, vceqq_u64, +- vmaxvq_u32) ++ VECTORIZED_LOOP_Neon(uint64x2_t, uint64x2_t, vdupq_n_u64, vceqq_u64, ++ reinterpret_vmaxvq_u64) + } else if constexpr (std::is_same<T, double>::value) { +- VECTORIZED_LOOP_Neon(float64x2_t, float64x2_t, vdupq_n_f64, vceqq_f64, +- vmaxvq_f64) ++ VECTORIZED_LOOP_Neon(float64x2_t, uint64x2_t, vdupq_n_f64, vceqq_f64, ++ reinterpret_vmaxvq_u64) + } + #else + UNREACHABLE(); |