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Merge remote-tracking branch 'origin/armv8-a-compatibility' into integration_2026_w07 (!3896)

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Add fallbacks for ARMv8a to make it compile

The current code, on ARM, uses ARMv8.1-A RDM instructions. Add a
fallback for processors that do not have this instruction set.

Add some specific compile options for this platform.

Add debian 12 to the list of architectures.
This commit is contained in:
Robert Schmidt
2026-02-10 14:46:57 +01:00
parent 9dddad86a1 d7ea319b59
commit 42ef7bac98
4 changed files with 44 additions and 5 deletions
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CMakeLists.txt
+8 -1
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@@ -166,6 +166,8 @@ elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64")
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -gdwarf-2 -mcpu=neoverse-n1 -lgcc -lrt")
elseif (CPUPART MATCHES "0xd49") # Neoverse-N2
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -gdwarf-2 -mcpu=neoverse-n2 -ftree-vectorize -lgcc -lrt")
elseif (CPUPART MATCHES "0xd03") # Cortex-A53
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -gdwarf-2 -mcpu=cortex-a53 -lgcc -lrt")
else ()
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -gdwarf-2 -mcpu=native -lgcc -lrt")
endif()
@@ -174,7 +176,12 @@ else()
endif()
if (NOT CROSS_COMPILE)
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -march=native")
if (CPUPART MATCHES "0xd03")
# Cortex-A53 does not support ARMv8.2-A extensions
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -march=armv8-a+simd")
else()
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -march=native")
endif()
else ()
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -march=armv8.2-a")
endif()