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Fix zero init sequence for i128 in cranelift-frontend (#5115)

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iconst.i128 is no longer allowed, so we have to use iconst.i64 + uextend instead.
This commit is contained in:
bjorn3
2022-10-25 19:03:48 +02:00
committed by GitHub
parent ba7b874ca3
commit 441401f9d6
1 changed files with 5 additions and 2 deletions
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7
cranelift/frontend/src/ssa.rs
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@@ -15,7 +15,7 @@ use cranelift_codegen::cursor::{Cursor, FuncCursor};
use cranelift_codegen::entity::{EntityList, EntitySet, ListPool, SecondaryMap};
use cranelift_codegen::ir::immediates::{Ieee32, Ieee64};
use cranelift_codegen::ir::instructions::BranchInfo;
use cranelift_codegen::ir::types::{F32, F64};
use cranelift_codegen::ir::types::{F32, F64, I128, I64};
use cranelift_codegen::ir::{
Block, Function, Inst, InstBuilder, InstructionData, JumpTableData, Type, Value,
};
@@ -140,7 +140,10 @@ enum Call {
/// Emit instructions to produce a zero value in the given type.
fn emit_zero(ty: Type, mut cur: FuncCursor) -> Value {
if ty.is_int() {
if ty == I128 {
let zero = cur.ins().iconst(I64, 0);
cur.ins().uextend(I128, zero)
} else if ty.is_int() {
cur.ins().iconst(ty, 0)
} else if ty == F32 {
cur.ins().f32const(Ieee32::with_bits(0))