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* Enable hard-float ABI support for pico_float and pico_double on m33 Resolves #2783 Signed-off-by: Andy Lin <andylinpersonal@gmail.com> * Add (non google) LLVM support, and replace calling convention check with #if defined(__ARM_PCS_VFP) * switch float.h to use static inline method for int2float() etc in VFP mode rather than #define * float/double test cleanup - particularly: - splitting out executable for each test type for pico_float/double_test - removing undefined behavior from custom_float_funcs_test.c, to de-confuse clang - add test of denormal->int Note some tests still fail on llvm libc (at least version 19) * fix some issues with newer llvm_libc/compiler as used by bazel build * keep check_configs happy * another bazel issue * introduce pico_double_pico_dcp for consistency * fixup debug output based on previous commit * remove unnecessary build guard from double_conv_m33.S * allow -1 for neg_denormal->int rounding towards minus infinity * Update test/pico_float_test/CMakeLists.txt Co-authored-by: Andrew Scheller <andrew.scheller@raspberrypi.com> * Update test/pico_float_test/CMakeLists.txt Co-authored-by: Andrew Scheller <andrew.scheller@raspberrypi.com> * - add fma/_fast functions to pico_float_test/pico_double_test - fix guard for TEST_SATURATION in pico_double_test - GCC doesn't clamp either * - double functions were only wrapped in pico_double_pico not pico_double_pico_dcp explicitly (i.e. explicitly setting double impl to pico_dcp was not selecting our versions) * avoid extra stack alignment push (per review comment) * fix fma return code in VFP mode (register transfer was the wrong way around) * separate PCS=VFP and non-PCS-VFP versions of fma_fast * remove saving_func_return (which is just bx lr) and fold the separate pop of lr, into a pop of pc * better fix for wrapping right libraries * rename some labels from _entry (which is an internal entry point) to _softfp to be clear that these are the function entry points which work with softfp calling conventions * Make bazel pico_float build not wrap SCI functions on RISC-V to match CMake build * Split out FMAF as a selectable wrapped item since we don't want to wrap it for VFP * fix typos * fix test --------- Signed-off-by: Andy Lin <andylinpersonal@gmail.com> Co-authored-by: Andy Lin <andylinpersonal@gmail.com> Co-authored-by: Andrew Scheller <andrew.scheller@raspberrypi.com> |
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