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Remove from cranelift codegen LLVM intrinsics that are no longer needed

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This commit is contained in:
Eduardo Sánchez Muñoz 2023-10-10 18:35:28 +02:00
parent 89f9da2056
commit b57a157092
1 changed files with 0 additions and 35 deletions
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35
compiler/rustc_codegen_cranelift/src/intrinsics/llvm_x86.rs
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@ -32,41 +32,6 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
ret.write_cvalue(fx, CValue::by_val(res, fx.layout_of(fx.tcx.types.i64)));
}
// Used by `_mm_movemask_epi8` and `_mm256_movemask_epi8`
"llvm.x86.sse2.pmovmskb.128"
| "llvm.x86.avx2.pmovmskb"
| "llvm.x86.sse.movmsk.ps"
| "llvm.x86.sse2.movmsk.pd" => {
intrinsic_args!(fx, args => (a); intrinsic);
let (lane_count, lane_ty) = a.layout().ty.simd_size_and_type(fx.tcx);
let lane_ty = fx.clif_type(lane_ty).unwrap();
assert!(lane_count <= 32);
let mut res = fx.bcx.ins().iconst(types::I32, 0);
for lane in (0..lane_count).rev() {
let a_lane = a.value_lane(fx, lane).load_scalar(fx);
// cast float to int
let a_lane = match lane_ty {
types::F32 => codegen_bitcast(fx, types::I32, a_lane),
types::F64 => codegen_bitcast(fx, types::I64, a_lane),
_ => a_lane,
};
// extract sign bit of an int
let a_lane_sign = fx.bcx.ins().ushr_imm(a_lane, i64::from(lane_ty.bits() - 1));
// shift sign bit into result
let a_lane_sign = clif_intcast(fx, a_lane_sign, types::I32, false);
res = fx.bcx.ins().ishl_imm(res, 1);
res = fx.bcx.ins().bor(res, a_lane_sign);
}
let res = CValue::by_val(res, fx.layout_of(fx.tcx.types.i32));
ret.write_cvalue(fx, res);
}
"llvm.x86.sse.cmp.ps" | "llvm.x86.sse2.cmp.pd" => {
let (x, y, kind) = match args {
[x, y, kind] => (x, y, kind),