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| author | Diana Picus <diana.picus@linaro.org> | 2018-01-10 10:45:34 +0000 |
|---|---|---|
| committer | Diana Picus <diana.picus@linaro.org> | 2018-01-10 10:45:34 +0000 |
| commit | f949a0abace7977b5ea83dcfae70d439f6e3ebf4 (patch) | |
| tree | 46a6e9fbabf680d9b215b3574bbe744b0ea81285 /lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp | |
| parent | 698d63a61a51438182127fc4ce56a535d532b182 (diff) | |
| download | bcm5719-llvm-f949a0abace7977b5ea83dcfae70d439f6e3ebf4.tar.gz bcm5719-llvm-f949a0abace7977b5ea83dcfae70d439f6e3ebf4.zip | |
[ARM GlobalISel] Legalize G_FNEG for s32 and s64
For hard float, it is legal.
For soft float, we need to lower to 0 - x first, and then we can use the
libcall for G_FSUB. This is undoing some of the canonicalization
performed by the IRTranslator (which introduces G_FNEG when it sees a
0 - x). Ideally, that canonicalization would be performed by a
pre-legalizer pass that would allow targets to opt out of this behaviour
rather than dance around it in the legalizer.
llvm-svn: 322168
Diffstat (limited to 'lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp')
0 files changed, 0 insertions, 0 deletions
