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Simplify some handling of target_pointer_width

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This commit is contained in:
Mark Rousskov 2018-07-26 12:22:10 -06:00
parent 2bc71971e5
commit 3cc4450a8a
2 changed files with 6 additions and 35 deletions
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14
src/librustc_codegen_llvm/mir/rvalue.rs
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@ -733,18 +733,8 @@ fn get_overflow_intrinsic(oop: OverflowOp, bx: &Builder<'_, 'll, '_>, ty: Ty) ->
let tcx = bx.tcx();
let new_sty = match ty.sty {
TyInt(Isize) => match &tcx.sess.target.target.target_pointer_width[..] {
"16" => TyInt(I16),
"32" => TyInt(I32),
"64" => TyInt(I64),
_ => panic!("unsupported target word size")
},
TyUint(Usize) => match &tcx.sess.target.target.target_pointer_width[..] {
"16" => TyUint(U16),
"32" => TyUint(U32),
"64" => TyUint(U64),
_ => panic!("unsupported target word size")
},
TyInt(Isize) => TyInt(tcx.sess.target.isize_ty),
TyUint(Usize) => TyUint(tcx.sess.target.usize_ty),
ref t @ TyUint(_) | ref t @ TyInt(_) => t.clone(),
_ => panic!("tried to get overflow intrinsic for op applied to non-int type")
};