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Add regspill and regfill instructions.

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These are parallels to the existing regmove instruction, but the divert
the value to and from a stack slot.

Like regmove diversions, this is a temporary diversion that must be
local to the EBB.
This commit is contained in:
Jakob Stoklund Olesen
2017-10-04 12:42:53 -07:00
parent d4aeec6ece
commit dda3efcbdd
9 changed files with 123 additions and 3 deletions
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16
lib/cretonne/src/write.rs
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@@ -385,6 +385,22 @@ pub fn write_operands(
write!(w, " {}, %{} -> %{}", arg, src, dst)
}
}
RegSpill { arg, src, dst, .. } => {
if let Some(isa) = isa {
let regs = isa.register_info();
write!(w, " {}, {} -> {}", arg, regs.display_regunit(src), dst)
} else {
write!(w, " {}, %{} -> {}", arg, src, dst)
}
}
RegFill { arg, src, dst, .. } => {
if let Some(isa) = isa {
let regs = isa.register_info();
write!(w, " {}, {} -> {}", arg, src, regs.display_regunit(dst))
} else {
write!(w, " {}, {} -> %{}", arg, src, dst)
}
}
Trap { code, .. } => write!(w, " {}", code),
CondTrap { arg, code, .. } => write!(w, " {}, {}", arg, code),
}