[Bug target/106442] Build time error "vadd.i32 q3, q3, q0'" in case of -mcpu=cortex-m55+nofp+nomve.fp

sherry.zhang2 at arm dot com gcc-bugzilla@gcc.gnu.org
Tue Jul 26 07:36:23 GMT 2022


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106442

--- Comment #5 from sherry.zhang2 at arm dot com ---
(In reply to Andrew Pinski from comment #4)
> A picture is not the source.
> But this looks more like a bug in either your inline-asm or how you invoke
> GCC.

Logs after adding -v to GCC:
COLLECT_GCC_OPTIONS= '-mcpu=cortex-m55+nomve.fp' '-v' '-O3' '-D' 'NDEBUG'
'-specs=nano.specs' '-Wall' '-Wformat=0' '-Wno-return-type'
'-Wno-unused-but-set-variable' '-c' '-fdata-sections' '-ffunction-sections'
'-fno-builtin' '-fshort-enums' '-funsigned-char' '-mthumb' '-nostdlib'
'-std=c99' '-g' '-mfloat-abi=soft' '-mcmse' '-Wno-unused-value' '-o'
'CMakeFiles/tfm_spm.dir/cmsis_psa/arch/tfm_arch_v8m_main.o' '-c'
'-mlibarch=armv8.1-m.main+mve' '-march=armv8.1-m.main+mve' 

The same source code can build without error if I enable FP
with
COLLECT_GCC_OPTIONS='-mcpu=cortex-m55' '-v' '-O3' '-D' 'NDEBUG'
'-specs=nano.specs' '-Wall' '-Wformat=0' '-Wno-return-type'
'-Wno-unused-but-set-variable' '-c' '-fdata-sections' '-ffunction-sections'
'-fno-builtin' '-fshort-enums' '-funsigned-char' '-mthumb' '-nostdlib'
'-std=c99' '-g' '-mfloat-abi=hard' '-mfpu=fpv5-d16' '-mcmse'
'-Wno-unused-value' '-o'
'CMakeFiles/tfm_spm.dir/cmsis_psa/arch/tfm_arch_v8m_main.o' '-c'
'-mlibarch=armv8.1-m.main+fp.dp+mve' '-march=armv8.1-m.main+fp.dp+mve'


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