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x64: Lower extractlane, scalar_to_vector, and splat in ISLE (#4780)

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Lower extractlane, scalar_to_vector and splat in ISLE.

This PR also makes some changes to the SinkableLoad api
* change the return type of sink_load to RegMem as there are more functions available for dealing with RegMem
* add reg_mem_to_reg_mem_imm and register it as an automatic conversion
This commit is contained in:
Trevor Elliott
2022-08-25 09:38:03 -07:00
committed by GitHub
parent d3c463aac0
commit 9386409607
10 changed files with 285 additions and 251 deletions
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4
cranelift/codegen/src/isa/x64/lower/isle.rs
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@@ -306,10 +306,10 @@ impl Context for IsleContext<'_, '_, MInst, Flags, IsaFlags, 6> {
None
}
fn sink_load(&mut self, load: &SinkableLoad) -> RegMemImm {
fn sink_load(&mut self, load: &SinkableLoad) -> RegMem {
self.lower_ctx.sink_inst(load.inst);
let addr = lower_to_amode(self.lower_ctx, load.addr_input, load.offset);
RegMemImm::Mem {
RegMem::Mem {
addr: SyntheticAmode::Real(addr),
}
}