[Bug target/95964] AArch64 arm_neon.h arithmetic functions lack appropriate attributes
ktkachov at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Feb 10 12:58:04 GMT 2021
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95964
ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2021-02-10
Ever confirmed|0 |1
CC| |ktkachov at gcc dot gnu.org
Status|UNCONFIRMED |NEW
--- Comment #3 from ktkachov at gcc dot gnu.org ---
In GCC 11 these builtins have do get a fnspec attribute and the start pointer
is hoisted. But this happens only with -fno-trapping-math (part of -Ofast)
because the operation can raise FP exceptions and therefore is considered to
modify global state unless -fnop-trapping-math.
Is that good enough for this PR or do we want more something more fine-grained?
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