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3 changes: 2 additions & 1 deletion src/librustc_codegen_llvm/intrinsic.rs
Original file line number Diff line number Diff line change
Expand Up @@ -1192,7 +1192,7 @@ fn generic_simd_intrinsic(
return Ok(bx.select(m_i1s, args[1].immediate(), args[2].immediate()));
}

// every intrinsic takes a SIMD vector as its first argument
// every intrinsic below takes a SIMD vector as its first argument
require_simd!(arg_tys[0], "input");
let in_ty = arg_tys[0];
let in_elem = arg_tys[0].simd_type(tcx);
Expand Down Expand Up @@ -1296,6 +1296,7 @@ fn generic_simd_intrinsic(
if name == "simd_select" {
let m_elem_ty = in_elem;
let m_len = in_len;
require_simd!(arg_tys[1], "argument");
let v_len = arg_tys[1].simd_size(tcx);
require!(m_len == v_len,
"mismatched lengths: mask length `{}` != other vector length `{}`",
Expand Down
6 changes: 6 additions & 0 deletions src/test/ui/simd-intrinsic/simd-intrinsic-generic-select.rs
Original file line number Diff line number Diff line change
Expand Up @@ -54,8 +54,14 @@ fn main() {
simd_select(z, z, z);
//~^ ERROR mask element type is `f32`, expected `i_`

simd_select(m4, 0u32, 1u32);
//~^ ERROR found non-SIMD `u32`

simd_select_bitmask(0u8, x, x);
//~^ ERROR mask length `8` != other vector length `4`
//
simd_select_bitmask(0u8, 1u32, 2u32);
//~^ ERROR found non-SIMD `u32`

simd_select_bitmask(0.0f32, x, x);
//~^ ERROR `f32` is not an integral type
Expand Down
20 changes: 16 additions & 4 deletions src/test/ui/simd-intrinsic/simd-intrinsic-generic-select.stderr
Original file line number Diff line number Diff line change
Expand Up @@ -16,24 +16,36 @@ error[E0511]: invalid monomorphization of `simd_select` intrinsic: mask element
LL | simd_select(z, z, z);
| ^^^^^^^^^^^^^^^^^^^^

error[E0511]: invalid monomorphization of `simd_select_bitmask` intrinsic: mismatched lengths: mask length `8` != other vector length `4`
error[E0511]: invalid monomorphization of `simd_select` intrinsic: expected SIMD argument type, found non-SIMD `u32`
--> $DIR/simd-intrinsic-generic-select.rs:57:9
|
LL | simd_select(m4, 0u32, 1u32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0511]: invalid monomorphization of `simd_select_bitmask` intrinsic: mismatched lengths: mask length `8` != other vector length `4`
--> $DIR/simd-intrinsic-generic-select.rs:60:9
|
LL | simd_select_bitmask(0u8, x, x);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0511]: invalid monomorphization of `simd_select_bitmask` intrinsic: expected SIMD argument type, found non-SIMD `u32`
--> $DIR/simd-intrinsic-generic-select.rs:63:9
|
LL | simd_select_bitmask(0u8, 1u32, 2u32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0511]: invalid monomorphization of `simd_select_bitmask` intrinsic: `f32` is not an integral type
--> $DIR/simd-intrinsic-generic-select.rs:60:9
--> $DIR/simd-intrinsic-generic-select.rs:66:9
|
LL | simd_select_bitmask(0.0f32, x, x);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0511]: invalid monomorphization of `simd_select_bitmask` intrinsic: `&str` is not an integral type
--> $DIR/simd-intrinsic-generic-select.rs:63:9
--> $DIR/simd-intrinsic-generic-select.rs:69:9
|
LL | simd_select_bitmask("x", x, x);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 6 previous errors
error: aborting due to 8 previous errors

For more information about this error, try `rustc --explain E0511`.