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| author | David Green <david.green@arm.com> | 2022-04-27 09:30:00 +0100 |
|---|---|---|
| committer | David Green <david.green@arm.com> | 2022-04-27 09:30:00 +0100 |
| commit | 4a8c13a6f42e9c58af64421790509cc58208859b (patch) | |
| tree | d3bd029c244a968f0895bbeed69b3838f167bb41 /flang/lib/Frontend/CompilerInvocation.cpp | |
| parent | c1e94591bcc95f36da0372080c455b09af8c46fd (diff) | |
| download | llvm-4a8c13a6f42e9c58af64421790509cc58208859b.zip llvm-4a8c13a6f42e9c58af64421790509cc58208859b.tar.gz llvm-4a8c13a6f42e9c58af64421790509cc58208859b.tar.bz2 | |
[CostModel] Add basic fptoi_sat costs
This adds some basic fptosi_sat and fptoui_sat target independent cost
modelling. The fptosi_sat is modelled as a fmin/fmax to saturate the
value, followed by a fp convert. The signed values then have an
additional fcmp+select for handling Nan correctly.
The AArch64/Arm costs may be more incorrect, as the instruction exist
natively. This can be fixed with target specific cost updates.
Differential Revision: https://reviews.llvm.org/D124269
Diffstat (limited to 'flang/lib/Frontend/CompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions