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Initial reftype support in aarch64, modulo safepoints.

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This commit adds the inital support to allow reftypes to flow through
the program when targetting aarch64. It also adds a fix to the
`ModuleTranslationState` needed to send R32/R64 types over from the
SpiderMonkey embedding.

This commit does not include any support for safepoints in aarch64
or the `MachInst` infrastructure; that is in the next commit.

This commit also makes a drive-by improvement to `Bint`, avoiding an
unneeded zero-extension op when the extended value comes directly from a
conditional-set (which produces a full-width 0 or 1).
This commit is contained in:
Chris Fallin
2020-06-09 16:32:46 -07:00
parent 4edd165d25
commit b93e8c296d
6 changed files with 114 additions and 11 deletions
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9
cranelift/codegen/src/isa/aarch64/abi.rs
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@@ -400,6 +400,7 @@ fn in_int_reg(ty: ir::Type) -> bool {
match ty {
types::I8 | types::I16 | types::I32 | types::I64 => true,
types::B1 | types::B8 | types::B16 | types::B32 | types::B64 => true,
types::R32 | types::R64 => true,
_ => false,
}
}
@@ -653,12 +654,12 @@ fn load_stack(mem: MemArg, into_reg: Writable<Reg>, ty: Type) -> Inst {
mem,
srcloc: None,
},
types::B32 | types::I32 => Inst::ULoad32 {
types::B32 | types::I32 | types::R32 => Inst::ULoad32 {
rd: into_reg,
mem,
srcloc: None,
},
types::B64 | types::I64 => Inst::ULoad64 {
types::B64 | types::I64 | types::R64 => Inst::ULoad64 {
rd: into_reg,
mem,
srcloc: None,
@@ -689,12 +690,12 @@ fn store_stack(mem: MemArg, from_reg: Reg, ty: Type) -> Inst {
mem,
srcloc: None,
},
types::B32 | types::I32 => Inst::Store32 {
types::B32 | types::I32 | types::R32 => Inst::Store32 {
rd: from_reg,
mem,
srcloc: None,
},
types::B64 | types::I64 => Inst::Store64 {
types::B64 | types::I64 | types::R64 => Inst::Store64 {
rd: from_reg,
mem,
srcloc: None,