https://bugs.llvm.org/show_bug.cgi?id=34994
Fangrui Song <i...@maskray.me> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
Assignee|unassignedb...@nondot.org |spatel+l...@rotateright.com
CC| |i...@maskray.me
--- Comment #19 from Fangrui Song <i...@maskray.me> ---
Mark as fixed.
x86-64 and aarch64
% for i in ieee preserve-sign positive-zero; do clang++ a.cc -ffast-math
-fdenormal-fp-math=$i && ./a.out; done
sqrt(1.00000005e-34) = 9.99999984e-18
sqrt(1.00000004e-36) = 1.00000005e-18
sqrt(0) = 0
sqrt(0) = 0
sqrt(0) = 0
sqrt(0) = 0
sqrt(0) = 0
sqrt(1.00000005e-34) = 9.99999984e-18
sqrt(1.00000004e-36) = 1.00000005e-18
sqrt(0) = 0
sqrt(0) = 0
sqrt(0) = 0
sqrt(0) = 0
sqrt(0) = 0
sqrt(1.00000005e-34) = 9.99999984e-18
sqrt(1.00000004e-36) = 1.00000005e-18
sqrt(0) = 0
sqrt(0) = 0
sqrt(0) = 0
sqrt(0) = 0
sqrt(0) = 0
ppc64le (POWER9)
sqrt(1.00000005e-34) = 9.99999984e-18
sqrt(1.00000004e-36) = 1.00000005e-18
sqrt(9.99999935e-39) = 9.99999968e-20
sqrt(9.9999461e-41) = 9.99997303e-21
sqrt(1.0005271e-42) = 1.00026351e-21
sqrt(9.80908925e-45) = 9.90408493e-23
sqrt(0) = 0
sqrt(1.00000005e-34) = 9.99999984e-18
sqrt(1.00000004e-36) = 1.00000005e-18
sqrt(9.99999935e-39) = 9.99999968e-20
sqrt(9.9999461e-41) = 9.99997303e-21
sqrt(1.0005271e-42) = 1.00026351e-21
sqrt(9.80908925e-45) = 9.90408493e-23
sqrt(0) = 0
sqrt(1.00000005e-34) = 9.99999984e-18
sqrt(1.00000004e-36) = 1.00000005e-18
sqrt(9.99999935e-39) = 9.99999968e-20
sqrt(9.9999461e-41) = 9.99997303e-21
sqrt(1.0005271e-42) = 1.00026351e-21
sqrt(9.80908925e-45) = 9.90408493e-23
sqrt(0) = 0
The input constants the 3 arches use are the same.
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