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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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6
cranelift/codegen/src/isa/aarch64/inst/mod.rs
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@@ -6,7 +6,7 @@
use crate::binemit::CodeOffset;
use crate::ir::types::{
B1, B16, B16X8, B32, B32X4, B64, B64X2, B8, B8X16, F32, F32X2, F32X4, F64, F64X2, FFLAGS, I16,
I16X4, I16X8, I32, I32X2, I32X4, I64, I64X2, I8, I8X16, I8X8, IFLAGS,
I16X4, I16X8, I32, I32X2, I32X4, I64, I64X2, I8, I8X16, I8X8, IFLAGS, R32, R64,
};
use crate::ir::{ExternalName, Opcode, SourceLoc, TrapCode, Type};
use crate::machinst::*;
@@ -2081,6 +2081,8 @@ impl MachInst for Inst {
|| ty == B32
|| ty == I64
|| ty == B64
|| ty == R32
|| ty == R64
);
Inst::load_constant(to_reg, value)
}
@@ -2102,7 +2104,7 @@ impl MachInst for Inst {
fn rc_for_type(ty: Type) -> CodegenResult<RegClass> {
match ty {
I8 | I16 | I32 | I64 | B1 | B8 | B16 | B32 | B64 => Ok(RegClass::I64),
I8 | I16 | I32 | I64 | B1 | B8 | B16 | B32 | B64 | R32 | R64 => Ok(RegClass::I64),
F32 | F64 => Ok(RegClass::V128),
IFLAGS | FFLAGS => Ok(RegClass::I64),
B8X16 | I8X16 | B16X8 | I16X8 | B32X4 | I32X4 | B64X2 | I64X2 | F32X4 | F64X2 => {