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Add generic RISC-V build path #403

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Add generic RISC-V build path #403

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9887f1f
Add generic RISC-V build path
carlosqwqqwq Jun 9, 2026
1d06260
Silence generic fallback detection warning
carlosqwqqwq Jun 15, 2026
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4 changes: 4 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -250,6 +250,10 @@ if(CMAKE_SYSTEM_PROCESSOR MATCHES "(i386|i686|x86_64|amd64|AMD64)")
# Unrecognized compiler. Emit a warning message to let the user know hardware-acceleration won't be available.
message(WARNING "Unable to determine which ${CMAKE_SYSTEM_PROCESSOR} hardware features are supported by the C compiler (${CMAKE_C_COMPILER_ID} ${CMAKE_C_COMPILER_VERSION}).")
endif()
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "riscv")
set(COMPILER_SUPPORT_SSE2 FALSE)
set(COMPILER_SUPPORT_AVX2 FALSE)
message(STATUS "Recognized RISC-V target ${CMAKE_SYSTEM_PROCESSOR}; hardware-accelerated x86 shuffle implementations are disabled and generic routines will be used.")
else()
# If the target system processor isn't recognized, emit a warning message to alert the user
# that hardware-acceleration support won't be available but allow configuration to proceed.
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7 changes: 1 addition & 6 deletions blosc/shuffle.c
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Expand Up @@ -286,12 +286,6 @@ static blosc_cpu_features blosc_get_cpu_features(void) {
#endif

#else /* No hardware acceleration supported for the target architecture. */
#if defined(_MSC_VER)
#pragma message("Hardware-acceleration detection not implemented for the target architecture. Only the generic shuffle/unshuffle routines will be available.")
#else
#warning Hardware-acceleration detection not implemented for the target architecture. Only the generic shuffle/unshuffle routines will be available.
#endif

static blosc_cpu_features blosc_get_cpu_features(void) {
return BLOSC_HAVE_NOTHING;
}
Expand All @@ -301,6 +295,7 @@ static blosc_cpu_features blosc_get_cpu_features(void) {
static shuffle_implementation_t get_shuffle_implementation(void) {
blosc_cpu_features cpu_features = blosc_get_cpu_features();
shuffle_implementation_t impl_generic;
(void)cpu_features;

#if defined(SHUFFLE_AVX2_ENABLED)
if (cpu_features & BLOSC_HAVE_AVX2) {
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