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don't use special flags for strict, precise, loose, veryloose toolchain options on RISC-V #4576

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Jul 31, 2024
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don't use special flags for strict, precise, loose, veryloose toolchain options on RISC-V #4576

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66ec1af
don't use special flags for strict and precise toolchain options on R…
bedroge Jul 12, 2024
37858f1
also remove unsupported flags for loose and veryloose on RISC-V
bedroge Jul 15, 2024
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9 changes: 9 additions & 0 deletions easybuild/toolchains/compiler/gcc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -78,6 +78,15 @@ class Gcc(Compiler):
COMPILER_UNIQUE_OPTION_MAP['strict'] = no_recip_alternative
COMPILER_UNIQUE_OPTION_MAP['precise'] = no_recip_alternative

# gcc on RISC-V does not support -mno-recip, -mieee-fp, -mfno-math-errno...
# https://gcc.gnu.org/onlinedocs/gcc/RISC-V-Options.html
# there are no good alternatives, so stick to the default flags
if systemtools.get_cpu_family() == systemtools.RISCV:
COMPILER_UNIQUE_OPTION_MAP['strict'] = []
COMPILER_UNIQUE_OPTION_MAP['precise'] = []
COMPILER_UNIQUE_OPTION_MAP['loose'] = ['fno-math-errno']
COMPILER_UNIQUE_OPTION_MAP['verloose'] = ['fno-math-errno']

# used when 'optarch' toolchain option is enabled (and --optarch is not specified)
COMPILER_OPTIMAL_ARCHITECTURE_OPTION = {
(systemtools.AARCH32, systemtools.ARM): 'mcpu=native', # implies -march=native and -mtune=native
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