bjoernager/rust
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Fix vectorcall

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This commit is contained in:
Daniel Paoliello 2022-07-19 10:40:26 -07:00
parent c9b31839b6
commit 722d67d5e7
8 changed files with 145 additions and 31 deletions
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6
compiler/rustc_target/src/abi/call/mod.rs
View file

@ -669,8 +669,10 @@ impl<'a, Ty> FnAbi<'a, Ty> {
match &cx.target_spec().arch[..] {
"x86" => {
let flavor = if let spec::abi::Abi::Fastcall { .. } = abi {
x86::Flavor::Fastcall
let flavor = if let spec::abi::Abi::Fastcall { .. }
| spec::abi::Abi::Vectorcall { .. } = abi
{
x86::Flavor::FastcallOrVectorcall
} else {
x86::Flavor::General
};

6
compiler/rustc_target/src/abi/call/x86.rs
View file

@ -5,7 +5,7 @@ use crate::spec::HasTargetSpec;
#[derive(PartialEq)]
pub enum Flavor {
General,
Fastcall,
FastcallOrVectorcall,
}
pub fn compute_abi_info<'a, Ty, C>(cx: &C, fn_abi: &mut FnAbi<'a, Ty>, flavor: Flavor)
@ -60,9 +60,9 @@ where
}
}
if flavor == Flavor::Fastcall {
if flavor == Flavor::FastcallOrVectorcall {
// Mark arguments as InReg like clang does it,
// so our fastcall is compatible with C/C++ fastcall.
// so our fastcall/vectorcall is compatible with C/C++ fastcall/vectorcall.
// Clang reference: lib/CodeGen/TargetInfo.cpp
// See X86_32ABIInfo::shouldPrimitiveUseInReg(), X86_32ABIInfo::updateFreeRegs()