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'asm operand has impossible constraint' - GCC 11.3 #50

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felix-johnny opened this issue Mar 22, 2023 · 0 comments · Fixed by #51
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'asm operand has impossible constraint' - GCC 11.3 #50

felix-johnny opened this issue Mar 22, 2023 · 0 comments · Fixed by #51
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GCC version : arm-none-eabi-gcc (Arm GNU Toolchain 11.3.Rel1) 11.3.1 20220712

Reproducer: arm-none-eabi-gcc -mcpu=cortex-m55 -Os -I../../Include/ -mfloat-abi=hard -mfpu=auto -S arm_nn_mat_mult_nt_t_s8.c

The issue is not seen in newer releases or other optimization levels.
@felix-johnny felix-johnny self-assigned this Mar 22, 2023
@felix-johnny felix-johnny added the bug Something isn't working label Mar 22, 2023
felix-johnny added a commit to felix-johnny/CMSIS-NN that referenced this issue Mar 24, 2023
@felix-johnny
Fix inline assembly error in GCC
a8f6977 
'asm operand has impossible constraint' error is seen
in an inline assembly section for certain optimization
levels.
Toolchain version: Arm GNU Toolchain 11.3.1

Fix targets simplification of  constraints for register allocator.

Fixes ARM-software#50

Change-Id: I476827857897eb972ca92be2750b0395678993d4
@felix-johnny felix-johnny mentioned this issue Mar 24, 2023
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felix-johnny added a commit that referenced this issue Mar 24, 2023
@felix-johnny
Fix inline assembly error in GCC (#51)
8d1a1b4 
'asm operand has impossible constraint' error is seen in an inline
assembly section for certain optimization levels.
Toolchain version: Arm GNU Toolchain 11.3.1

Fix targets simplification of  constraints for register allocator.

Fixes #50
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Fix inline assembly error in GCC felix-johnny/CMSIS-NN
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