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Add x86 recipe for vconst

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This commit is contained in:
Andrew Brown
2019-07-23 11:04:11 -07:00
committed by Dan Gohman
parent 407d24c013
commit 684721ca29
2 changed files with 23 additions and 1 deletions
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10
cranelift/codegen/src/isa/x86/binemit.rs
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@@ -4,7 +4,7 @@ use super::enc_tables::{needs_offset, needs_sib_byte};
use super::registers::RU;
use crate::binemit::{bad_encoding, CodeSink, Reloc};
use crate::ir::condcodes::{CondCode, FloatCC, IntCC};
use crate::ir::{Ebb, Function, Inst, InstructionData, JumpTable, Opcode, TrapCode};
use crate::ir::{Constant, Ebb, Function, Inst, InstructionData, JumpTable, Opcode, TrapCode};
use crate::isa::{RegUnit, StackBase, StackBaseMask, StackRef, TargetIsa};
use crate::regalloc::RegDiversions;
@@ -341,3 +341,11 @@ fn jt_disp4<CS: CodeSink + ?Sized>(jt: JumpTable, func: &Function, sink: &mut CS
sink.put4(delta);
sink.reloc_jt(Reloc::X86PCRelRodata4, jt);
}
/// Emit a four-byte displacement to `constant`
fn const_disp4<CS: CodeSink + ?Sized>(constant: Constant, func: &Function, sink: &mut CS) {
let offset = func.dfg.constants.get_offset(constant);
let delta = offset.wrapping_sub(sink.offset() + 4);
sink.put4(delta);
sink.reloc_constant(Reloc::X86PCRelRodata4, offset);
}