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Fix sign extension

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Co-authored-by: Max Graey <maxgraey@gmail.com>
This commit is contained in:
bjorn3
2020-09-01 23:02:29 +02:00
committed by Benjamin Bouvier
parent 067255ef45
commit 9999913a31
1 changed files with 2 additions and 2 deletions
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4
cranelift/codegen/src/isa/aarch64/lower_inst.rs
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@@ -52,8 +52,8 @@ pub(crate) fn lower_insn_to_regs<C: LowerCtx<I = Inst>>(
let value = ctx.get_constant(insn).unwrap(); let value = ctx.get_constant(insn).unwrap();
// Sign extend constant if necessary // Sign extend constant if necessary
let value = match ty.unwrap() { let value = match ty.unwrap() {
I8 => (((value as i64) << 8) >> 8) as u64, I8 => (((value as i64) << 56) >> 56) as u64,
I16 => (((value as i64) << 16) >> 16) as u64, I16 => (((value as i64) << 48) >> 48) as u64,
I32 => (((value as i64) << 32) >> 32) as u64, I32 => (((value as i64) << 32) >> 32) as u64,
I64 | R64 => value, I64 | R64 => value,
ty if ty.is_bool() => value, ty if ty.is_bool() => value,