https://llvm.org/bugs/show_bug.cgi?id=31285
Bug ID: 31285
Summary: We need a way to specify FP denormal behavior on a
per-instruction basis
Product: new-bugs
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: andrew.kay...@intel.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
As per the discussion in the comments for https://reviews.llvm.org/D27028, we
need a way to control flush-to-zero behavior of floating point operations on a
per instructions basis.
Currently there is a TargetMachine option and a set of function attributes for
controlling denormal behavior. It isn't clear to me whether this approach is
sufficient for the needs of all architectures.
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