Remove MMX from Rust
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07ece44a42
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@ -948,7 +948,6 @@ extern "C" {
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// Operations on other types
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pub fn LLVMVoidTypeInContext(C: &Context) -> &Type;
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pub fn LLVMX86MMXTypeInContext(C: &Context) -> &Type;
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pub fn LLVMRustMetadataTypeInContext(C: &Context) -> &Type;
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// Operations on all values
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@ -203,7 +203,6 @@ const X86_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
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("fma", None),
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("fxsr", None),
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("lzcnt", None),
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("mmx", Some(sym::mmx_target_feature)),
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("movbe", Some(sym::movbe_target_feature)),
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("pclmulqdq", None),
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("popcnt", None),
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@ -62,10 +62,6 @@ impl CodegenCx<'ll, 'tcx> {
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unsafe { llvm::LLVMIntTypeInContext(self.llcx, num_bits as c_uint) }
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}
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crate fn type_x86_mmx(&self) -> &'ll Type {
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unsafe { llvm::LLVMX86MMXTypeInContext(self.llcx) }
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}
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crate fn type_vector(&self, ty: &'ll Type, len: u64) -> &'ll Type {
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unsafe { llvm::LLVMVectorType(ty, len as c_uint) }
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}
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@ -21,24 +21,9 @@ fn uncached_llvm_type<'a, 'tcx>(
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match layout.abi {
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Abi::Scalar(_) => bug!("handled elsewhere"),
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Abi::Vector { ref element, count } => {
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// LLVM has a separate type for 64-bit SIMD vectors on X86 called
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// `x86_mmx` which is needed for some SIMD operations. As a bit of a
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// hack (all SIMD definitions are super unstable anyway) we
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// recognize any one-element SIMD vector as "this should be an
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// x86_mmx" type. In general there shouldn't be a need for other
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// one-element SIMD vectors, so it's assumed this won't clash with
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// much else.
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let use_x86_mmx = count == 1
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&& layout.size.bits() == 64
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&& (cx.sess().target.target.arch == "x86"
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|| cx.sess().target.target.arch == "x86_64");
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if use_x86_mmx {
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return cx.type_x86_mmx();
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} else {
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let element = layout.scalar_llvm_type_at(cx, element, Size::ZERO);
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return cx.type_vector(element, count);
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}
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}
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Abi::ScalarPair(..) => {
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return cx.type_struct(
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&[
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@ -229,7 +229,6 @@ declare_features! (
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(active, powerpc_target_feature, "1.27.0", Some(44839), None),
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(active, mips_target_feature, "1.27.0", Some(44839), None),
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(active, avx512_target_feature, "1.27.0", Some(44839), None),
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(active, mmx_target_feature, "1.27.0", Some(44839), None),
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(active, sse4a_target_feature, "1.27.0", Some(44839), None),
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(active, tbm_target_feature, "1.27.0", Some(44839), None),
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(active, wasm_target_feature, "1.30.0", Some(44839), None),
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@ -677,7 +677,6 @@ symbols! {
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minnumf32,
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minnumf64,
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mips_target_feature,
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mmx_target_feature,
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module,
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module_path,
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more_struct_aliases,
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@ -2361,7 +2361,6 @@ fn from_target_feature(
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Some(sym::mips_target_feature) => rust_features.mips_target_feature,
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Some(sym::riscv_target_feature) => rust_features.riscv_target_feature,
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Some(sym::avx512_target_feature) => rust_features.avx512_target_feature,
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Some(sym::mmx_target_feature) => rust_features.mmx_target_feature,
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Some(sym::sse4a_target_feature) => rust_features.sse4a_target_feature,
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Some(sym::tbm_target_feature) => rust_features.tbm_target_feature,
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Some(sym::wasm_target_feature) => rust_features.wasm_target_feature,
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@ -132,7 +132,6 @@
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#![feature(unwind_attributes)]
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#![feature(variant_count)]
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#![cfg_attr(bootstrap, feature(doc_alias))]
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#![feature(mmx_target_feature)]
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#![feature(tbm_target_feature)]
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#![feature(sse4a_target_feature)]
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#![feature(arm_target_feature)]
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@ -1,27 +0,0 @@
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// ignore-arm
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// ignore-aarch64
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// ignore-emscripten
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// ignore-mips
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// ignore-mips64
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// ignore-powerpc
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// ignore-powerpc64
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// ignore-powerpc64le
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// ignore-riscv64
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// ignore-sparc
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// ignore-sparc64
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// ignore-s390x
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// compile-flags: -O
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#![feature(repr_simd)]
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#![crate_type="lib"]
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#[repr(simd)]
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#[derive(Clone, Copy)]
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pub struct i8x8(u64);
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#[no_mangle]
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pub fn a(a: &mut i8x8, b: i8x8) -> i8x8 {
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// CHECK-LABEL: define void @a(x86_mmx*{{.*}}, x86_mmx*{{.*}}, x86_mmx*{{.*}})
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*a = b;
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return b
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}
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@ -1,5 +1,5 @@
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#![feature(mmx_target_feature)]
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#![feature(avx512_target_feature)]
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#[inline]
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#[target_feature(enable = "mmx")]
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#[target_feature(enable = "avx512ifma")]
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pub unsafe fn foo() {}
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@ -19,7 +19,6 @@
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// gate-test-aarch64_target_feature
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// gate-test-hexagon_target_feature
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// gate-test-mips_target_feature
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// gate-test-mmx_target_feature
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// gate-test-wasm_target_feature
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// gate-test-adx_target_feature
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// gate-test-cmpxchg16b_target_feature
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@ -30,7 +29,6 @@
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#[target_feature(enable = "avx512bw")]
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//~^ ERROR: currently unstable
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unsafe fn foo() {
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}
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unsafe fn foo() {}
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fn main() {}
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@ -1,5 +1,5 @@
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error[E0658]: the target feature `avx512bw` is currently unstable
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--> $DIR/gate.rs:31:18
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--> $DIR/gate.rs:30:18
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LL | #[target_feature(enable = "avx512bw")]
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| ^^^^^^^^^^^^^^^^^^^
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