bjoernager/rust
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Support LLVM 12 in rustc

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This commit is contained in:
Nikita Popov 2020-11-03 22:47:16 +01:00
parent 7c3a914b5d
commit 55f345f325
18 changed files with 226 additions and 77 deletions
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17
compiler/rustc_codegen_llvm/src/abi.rs
View file

@ -430,7 +430,13 @@ impl<'tcx> FnAbiLlvmExt<'tcx> for FnAbi<'tcx, Ty<'tcx>> {
PassMode::Indirect { ref attrs, extra_attrs: _, on_stack } => {
assert!(!on_stack);
let i = apply(attrs);
llvm::Attribute::StructRet.apply_llfn(llvm::AttributePlace::Argument(i), llfn);
unsafe {
llvm::LLVMRustAddStructRetAttr(
llfn,
llvm::AttributePlace::Argument(i).as_uint(),
self.ret.layout.llvm_type(cx),
);
}
}
_ => {}
}
@ -486,8 +492,13 @@ impl<'tcx> FnAbiLlvmExt<'tcx> for FnAbi<'tcx, Ty<'tcx>> {
PassMode::Indirect { ref attrs, extra_attrs: _, on_stack } => {
assert!(!on_stack);
let i = apply(attrs);
llvm::Attribute::StructRet
.apply_callsite(llvm::AttributePlace::Argument(i), callsite);
unsafe {
llvm::LLVMRustAddStructRetCallSiteAttr(
callsite,
llvm::AttributePlace::Argument(i).as_uint(),
self.ret.layout.llvm_type(bx),
);
}
}
_ => {}
}

7
compiler/rustc_codegen_llvm/src/context.rs
View file

@ -104,6 +104,10 @@ fn strip_x86_address_spaces(data_layout: String) -> String {
data_layout.replace("-p270:32:32-p271:32:32-p272:64:64-", "-")
}
fn strip_powerpc64_vectors(data_layout: String) -> String {
data_layout.replace("-v256:256:256-v512:512:512", "")
}
pub unsafe fn create_module(
tcx: TyCtxt<'_>,
llcx: &'ll llvm::Context,
@ -119,6 +123,9 @@ pub unsafe fn create_module(
{
target_data_layout = strip_x86_address_spaces(target_data_layout);
}
if llvm_util::get_version() < (12, 0, 0) && sess.target.arch == "powerpc64" {
target_data_layout = strip_powerpc64_vectors(target_data_layout);
}
// Ensure the data-layout values hardcoded remain the defaults.
if sess.target.is_builtin {

4
compiler/rustc_codegen_llvm/src/llvm/ffi.rs
View file

@ -239,6 +239,7 @@ pub enum TypeKind {
Token = 16,
ScalableVector = 17,
BFloat = 18,
X86_AMX = 19,
}
impl TypeKind {
@ -263,6 +264,7 @@ impl TypeKind {
TypeKind::Token => rustc_codegen_ssa::common::TypeKind::Token,
TypeKind::ScalableVector => rustc_codegen_ssa::common::TypeKind::ScalableVector,
TypeKind::BFloat => rustc_codegen_ssa::common::TypeKind::BFloat,
TypeKind::X86_AMX => rustc_codegen_ssa::common::TypeKind::X86_AMX,
}
}
}
@ -1073,6 +1075,7 @@ extern "C" {
pub fn LLVMRustAddDereferenceableAttr(Fn: &Value, index: c_uint, bytes: u64);
pub fn LLVMRustAddDereferenceableOrNullAttr(Fn: &Value, index: c_uint, bytes: u64);
pub fn LLVMRustAddByValAttr(Fn: &Value, index: c_uint, ty: &Type);
pub fn LLVMRustAddStructRetAttr(Fn: &Value, index: c_uint, ty: &Type);
pub fn LLVMRustAddFunctionAttribute(Fn: &Value, index: c_uint, attr: Attribute);
pub fn LLVMRustAddFunctionAttrStringValue(
Fn: &Value,
@ -1108,6 +1111,7 @@ extern "C" {
pub fn LLVMRustAddDereferenceableCallSiteAttr(Instr: &Value, index: c_uint, bytes: u64);
pub fn LLVMRustAddDereferenceableOrNullCallSiteAttr(Instr: &Value, index: c_uint, bytes: u64);
pub fn LLVMRustAddByValCallSiteAttr(Instr: &Value, index: c_uint, ty: &Type);
pub fn LLVMRustAddStructRetCallSiteAttr(Instr: &Value, index: c_uint, ty: &Type);
// Operations on load/store instructions (only)
pub fn LLVMSetVolatile(MemoryAccessInst: &Value, volatile: Bool);