Auto merge of #117779 - bjorn3:sync_cg_clif-2023-11-10, r=bjorn3

Subtree update for rustc_codegen_cranelift

Significantly improved support for simd intrinsics.

r? `@ghost`

`@rustbot` label +A-codegen +A-cranelift +T-compiler
This commit is contained in:
bors 2023-11-10 12:21:39 +00:00
commit d4c86cfc49
13 changed files with 961 additions and 67 deletions

View File

@ -76,8 +76,6 @@ configuration options.
## Not yet supported
* Inline assembly ([no cranelift support](https://github.com/bytecodealliance/wasmtime/issues/1041))
* On UNIX there is support for invoking an external assembler for `global_asm!` and `asm!`.
* SIMD ([tracked here](https://github.com/rust-lang/rustc_codegen_cranelift/issues/171), `std::simd` fully works, `std::arch` is partially supported)
* Unwinding on panics ([no cranelift support](https://github.com/bytecodealliance/wasmtime/issues/1677), `-Cpanic=abort` is enabled by default)

View File

@ -99,6 +99,7 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[
TestCase::build_bin_and_run("aot.mod_bench", "example/mod_bench.rs", &[]),
TestCase::build_bin_and_run("aot.issue-72793", "example/issue-72793.rs", &[]),
TestCase::build_bin("aot.issue-59326", "example/issue-59326.rs"),
TestCase::build_bin_and_run("aot.neon", "example/neon.rs", &[]),
];
pub(crate) static RAND_REPO: GitRepo = GitRepo::github(

View File

@ -42,6 +42,7 @@ aot.float-minmax-pass
aot.mod_bench
aot.issue-72793
aot.issue-59326
aot.neon
testsuite.extended_sysroot
test.rust-random/rand

View File

@ -0,0 +1,234 @@
// Most of these tests are copied from https://github.com/japaric/stdsimd/blob/0f4413d01c4f0c3ffbc5a69e9a37fbc7235b31a9/coresimd/arm/neon.rs
#![feature(portable_simd)]
#[cfg(target_arch = "aarch64")]
use std::arch::aarch64::*;
use std::mem::transmute;
use std::simd::*;
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmin_s8() {
let a = i8x8::from([1, -2, 3, -4, 5, 6, 7, 8]);
let b = i8x8::from([0, 3, 2, 5, 4, 7, 6, 9]);
let e = i8x8::from([-2, -4, 5, 7, 0, 2, 4, 6]);
let r: i8x8 = transmute(vpmin_s8(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmin_s16() {
let a = i16x4::from([1, 2, 3, -4]);
let b = i16x4::from([0, 3, 2, 5]);
let e = i16x4::from([1, -4, 0, 2]);
let r: i16x4 = transmute(vpmin_s16(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmin_s32() {
let a = i32x2::from([1, -2]);
let b = i32x2::from([0, 3]);
let e = i32x2::from([-2, 0]);
let r: i32x2 = transmute(vpmin_s32(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmin_u8() {
let a = u8x8::from([1, 2, 3, 4, 5, 6, 7, 8]);
let b = u8x8::from([0, 3, 2, 5, 4, 7, 6, 9]);
let e = u8x8::from([1, 3, 5, 7, 0, 2, 4, 6]);
let r: u8x8 = transmute(vpmin_u8(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmin_u16() {
let a = u16x4::from([1, 2, 3, 4]);
let b = u16x4::from([0, 3, 2, 5]);
let e = u16x4::from([1, 3, 0, 2]);
let r: u16x4 = transmute(vpmin_u16(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmin_u32() {
let a = u32x2::from([1, 2]);
let b = u32x2::from([0, 3]);
let e = u32x2::from([1, 0]);
let r: u32x2 = transmute(vpmin_u32(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmin_f32() {
let a = f32x2::from([1., -2.]);
let b = f32x2::from([0., 3.]);
let e = f32x2::from([-2., 0.]);
let r: f32x2 = transmute(vpmin_f32(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmax_s8() {
let a = i8x8::from([1, -2, 3, -4, 5, 6, 7, 8]);
let b = i8x8::from([0, 3, 2, 5, 4, 7, 6, 9]);
let e = i8x8::from([1, 3, 6, 8, 3, 5, 7, 9]);
let r: i8x8 = transmute(vpmax_s8(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmax_s16() {
let a = i16x4::from([1, 2, 3, -4]);
let b = i16x4::from([0, 3, 2, 5]);
let e = i16x4::from([2, 3, 3, 5]);
let r: i16x4 = transmute(vpmax_s16(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmax_s32() {
let a = i32x2::from([1, -2]);
let b = i32x2::from([0, 3]);
let e = i32x2::from([1, 3]);
let r: i32x2 = transmute(vpmax_s32(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmax_u8() {
let a = u8x8::from([1, 2, 3, 4, 5, 6, 7, 8]);
let b = u8x8::from([0, 3, 2, 5, 4, 7, 6, 9]);
let e = u8x8::from([2, 4, 6, 8, 3, 5, 7, 9]);
let r: u8x8 = transmute(vpmax_u8(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmax_u16() {
let a = u16x4::from([1, 2, 3, 4]);
let b = u16x4::from([0, 3, 2, 5]);
let e = u16x4::from([2, 4, 3, 5]);
let r: u16x4 = transmute(vpmax_u16(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmax_u32() {
let a = u32x2::from([1, 2]);
let b = u32x2::from([0, 3]);
let e = u32x2::from([2, 3]);
let r: u32x2 = transmute(vpmax_u32(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpmax_f32() {
let a = f32x2::from([1., -2.]);
let b = f32x2::from([0., 3.]);
let e = f32x2::from([1., 3.]);
let r: f32x2 = transmute(vpmax_f32(transmute(a), transmute(b)));
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpadd_s16() {
let a = i16x4::from([1, 2, 3, 4]);
let b = i16x4::from([0, -1, -2, -3]);
let r: i16x4 = transmute(vpadd_s16(transmute(a), transmute(b)));
let e = i16x4::from([3, 7, -1, -5]);
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpadd_s32() {
let a = i32x2::from([1, 2]);
let b = i32x2::from([0, -1]);
let r: i32x2 = transmute(vpadd_s32(transmute(a), transmute(b)));
let e = i32x2::from([3, -1]);
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpadd_s8() {
let a = i8x8::from([1, 2, 3, 4, 5, 6, 7, 8]);
let b = i8x8::from([0, -1, -2, -3, -4, -5, -6, -7]);
let r: i8x8 = transmute(vpadd_s8(transmute(a), transmute(b)));
let e = i8x8::from([3, 7, 11, 15, -1, -5, -9, -13]);
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpadd_u16() {
let a = u16x4::from([1, 2, 3, 4]);
let b = u16x4::from([30, 31, 32, 33]);
let r: u16x4 = transmute(vpadd_u16(transmute(a), transmute(b)));
let e = u16x4::from([3, 7, 61, 65]);
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpadd_u32() {
let a = u32x2::from([1, 2]);
let b = u32x2::from([30, 31]);
let r: u32x2 = transmute(vpadd_u32(transmute(a), transmute(b)));
let e = u32x2::from([3, 61]);
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vpadd_u8() {
let a = u8x8::from([1, 2, 3, 4, 5, 6, 7, 8]);
let b = u8x8::from([30, 31, 32, 33, 34, 35, 36, 37]);
let r: u8x8 = transmute(vpadd_u8(transmute(a), transmute(b)));
let e = u8x8::from([3, 7, 11, 15, 61, 65, 69, 73]);
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vqsub_u8() {
let a = u8x8::from([1, 2, 3, 4, 5, 6, 7, 0xff]);
let b = u8x8::from([30, 1, 1, 1, 34, 0xff, 36, 37]);
let r: u8x8 = transmute(vqsub_u8(transmute(a), transmute(b)));
let e = u8x8::from([0, 1, 2, 3, 0, 0, 0, 218]);
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
unsafe fn test_vqadd_u8() {
let a = u8x8::from([1, 2, 3, 4, 5, 6, 7, 0xff]);
let b = u8x8::from([30, 1, 1, 1, 34, 0xff, 36, 37]);
let r: u8x8 = transmute(vqadd_u8(transmute(a), transmute(b)));
let e = u8x8::from([31, 3, 4, 5, 39, 0xff, 43, 0xff]);
assert_eq!(r, e);
}
#[cfg(target_arch = "aarch64")]
fn main() {
unsafe {
test_vpmin_s8();
test_vpmin_s16();
test_vpmin_s32();
test_vpmin_u8();
test_vpmin_u16();
test_vpmin_u32();
test_vpmin_f32();
test_vpmax_s8();
test_vpmax_s16();
test_vpmax_s32();
test_vpmax_u8();
test_vpmax_u16();
test_vpmax_u32();
test_vpmax_f32();
test_vpadd_s16();
test_vpadd_s32();
test_vpadd_s8();
test_vpadd_u16();
test_vpadd_u32();
test_vpadd_u8();
test_vqsub_u8();
test_vqadd_u8();
}
}
#[cfg(not(target_arch = "aarch64"))]
fn main() {}

View File

@ -58,9 +58,9 @@ dependencies = [
[[package]]
name = "compiler_builtins"
version = "0.1.100"
version = "0.1.103"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d6c0f24437059853f0fa64afc51f338f93647a3de4cf3358ba1bb4171a199775"
checksum = "a3b73c3443a5fd2438d7ba4853c64e4c8efc2404a9e28a9234cc2d5eebc6c242"
dependencies = [
"cc",
"rustc-std-workspace-core",
@ -158,9 +158,9 @@ dependencies = [
[[package]]
name = "libc"
version = "0.2.149"
version = "0.2.150"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a08173bc88b7955d1b3145aa561539096c421ac8debde8cbc3612ec635fee29b"
checksum = "89d92a4743f9a61002fae18374ed11e7973f530cb3a3255fb354818118b2203c"
dependencies = [
"rustc-std-workspace-core",
]
@ -415,7 +415,6 @@ dependencies = [
name = "unwind"
version = "0.0.0"
dependencies = [
"cc",
"cfg-if",
"compiler_builtins",
"core",

View File

@ -1,3 +1,3 @@
[toolchain]
channel = "nightly-2023-10-29"
channel = "nightly-2023-11-10"
components = ["rust-src", "rustc-dev", "llvm-tools"]

View File

@ -146,6 +146,11 @@ rm tests/ui/process/nofile-limit.rs # TODO some AArch64 linking issue
rm tests/ui/stdio-is-blocking.rs # really slow with unoptimized libstd
# rustc bugs
# ==========
# https://github.com/rust-lang/rust/pull/116447#issuecomment-1790451463
rm tests/ui/coroutine/gen_block_*.rs
cp ../dist/bin/rustdoc-clif ../dist/bin/rustdoc # some tests expect bin/rustdoc to exist
# prevent $(RUSTDOC) from picking up the sysroot built by x.py. It conflicts with the one used by

View File

@ -13,7 +13,7 @@ use crate::prelude::*;
enum CInlineAsmOperand<'tcx> {
In {
reg: InlineAsmRegOrRegClass,
value: CValue<'tcx>,
value: Value,
},
Out {
reg: InlineAsmRegOrRegClass,
@ -23,7 +23,7 @@ enum CInlineAsmOperand<'tcx> {
InOut {
reg: InlineAsmRegOrRegClass,
_late: bool,
in_value: CValue<'tcx>,
in_value: Value,
out_place: Option<CPlace<'tcx>>,
},
Const {
@ -47,7 +47,9 @@ pub(crate) fn codegen_inline_asm<'tcx>(
// Used by panic_abort on Windows, but uses a syntax which only happens to work with
// asm!() by accident and breaks with the GNU assembler as well as global_asm!() for
// the LLVM backend.
if template[0] == InlineAsmTemplatePiece::String("int $$0x29".to_string()) {
if template.len() == 1
&& template[0] == InlineAsmTemplatePiece::String("int $$0x29".to_string())
{
fx.bcx.ins().trap(TrapCode::User(1));
return;
}
@ -55,9 +57,10 @@ pub(crate) fn codegen_inline_asm<'tcx>(
let operands = operands
.into_iter()
.map(|operand| match *operand {
InlineAsmOperand::In { reg, ref value } => {
CInlineAsmOperand::In { reg, value: crate::base::codegen_operand(fx, value) }
}
InlineAsmOperand::In { reg, ref value } => CInlineAsmOperand::In {
reg,
value: crate::base::codegen_operand(fx, value).load_scalar(fx),
},
InlineAsmOperand::Out { reg, late, ref place } => CInlineAsmOperand::Out {
reg,
late,
@ -67,7 +70,7 @@ pub(crate) fn codegen_inline_asm<'tcx>(
CInlineAsmOperand::InOut {
reg,
_late: late,
in_value: crate::base::codegen_operand(fx, in_value),
in_value: crate::base::codegen_operand(fx, in_value).load_scalar(fx),
out_place: out_place.map(|place| crate::base::codegen_place(fx, place)),
}
}
@ -165,7 +168,7 @@ pub(crate) fn codegen_inline_asm<'tcx>(
for (i, operand) in operands.iter().enumerate() {
match operand {
CInlineAsmOperand::In { reg: _, value } => {
inputs.push((asm_gen.stack_slots_input[i].unwrap(), value.load_scalar(fx)));
inputs.push((asm_gen.stack_slots_input[i].unwrap(), *value));
}
CInlineAsmOperand::Out { reg: _, late: _, place } => {
if let Some(place) = place {
@ -173,7 +176,7 @@ pub(crate) fn codegen_inline_asm<'tcx>(
}
}
CInlineAsmOperand::InOut { reg: _, _late: _, in_value, out_place } => {
inputs.push((asm_gen.stack_slots_input[i].unwrap(), in_value.load_scalar(fx)));
inputs.push((asm_gen.stack_slots_input[i].unwrap(), *in_value));
if let Some(out_place) = out_place {
outputs.push((asm_gen.stack_slots_output[i].unwrap(), *out_place));
}
@ -726,3 +729,83 @@ fn call_inline_asm<'tcx>(
place.write_cvalue(fx, CValue::by_val(value, place.layout()));
}
}
pub(crate) fn codegen_xgetbv<'tcx>(
fx: &mut FunctionCx<'_, '_, 'tcx>,
xcr_no: Value,
ret: CPlace<'tcx>,
) {
// FIXME add .eh_frame unwind info directives
let operands = vec![
CInlineAsmOperand::In {
reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::cx)),
value: xcr_no,
},
CInlineAsmOperand::Out {
reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::ax)),
late: true,
place: Some(ret),
},
CInlineAsmOperand::Out {
reg: InlineAsmRegOrRegClass::Reg(InlineAsmReg::X86(X86InlineAsmReg::dx)),
late: true,
place: None,
},
];
let options = InlineAsmOptions::NOSTACK | InlineAsmOptions::PURE | InlineAsmOptions::NOMEM;
let mut inputs = Vec::new();
let mut outputs = Vec::new();
let mut asm_gen = InlineAssemblyGenerator {
tcx: fx.tcx,
arch: fx.tcx.sess.asm_arch.unwrap(),
enclosing_def_id: fx.instance.def_id(),
template: &[InlineAsmTemplatePiece::String(
"
xgetbv
// out = rdx << 32 | rax
shl rdx, 32
or rax, rdx
"
.to_string(),
)],
operands: &operands,
options,
registers: Vec::new(),
stack_slots_clobber: Vec::new(),
stack_slots_input: Vec::new(),
stack_slots_output: Vec::new(),
stack_slot_size: Size::from_bytes(0),
};
asm_gen.allocate_registers();
asm_gen.allocate_stack_slots();
let inline_asm_index = fx.cx.inline_asm_index.get();
fx.cx.inline_asm_index.set(inline_asm_index + 1);
let asm_name = format!(
"__inline_asm_{}_n{}",
fx.cx.cgu_name.as_str().replace('.', "__").replace('-', "_"),
inline_asm_index
);
let generated_asm = asm_gen.generate_asm_wrapper(&asm_name);
fx.cx.global_asm.push_str(&generated_asm);
for (i, operand) in operands.iter().enumerate() {
match operand {
CInlineAsmOperand::In { reg: _, value } => {
inputs.push((asm_gen.stack_slots_input[i].unwrap(), *value));
}
CInlineAsmOperand::Out { reg: _, late: _, place } => {
if let Some(place) = place {
outputs.push((asm_gen.stack_slots_output[i].unwrap(), *place));
}
}
_ => unreachable!(),
}
}
call_inline_asm(fx, &asm_name, asm_gen.stack_slot_size, inputs, outputs);
}

View File

@ -51,6 +51,21 @@ pub(crate) fn codegen_llvm_intrinsic_call<'tcx>(
});
}
_ if intrinsic.starts_with("llvm.fma.v") => {
intrinsic_args!(fx, args => (x,y,z); intrinsic);
simd_trio_for_each_lane(
fx,
x,
y,
z,
ret,
&|fx, _lane_ty, _res_lane_ty, lane_x, lane_y, lane_z| {
fx.bcx.ins().fma(lane_x, lane_y, lane_z)
},
);
}
_ => {
fx.tcx
.sess

View File

@ -44,7 +44,9 @@ pub(crate) fn codegen_aarch64_llvm_intrinsic_call<'tcx>(
});
}
_ if intrinsic.starts_with("llvm.aarch64.neon.sqadd.v") => {
_ if intrinsic.starts_with("llvm.aarch64.neon.sqadd.v")
|| intrinsic.starts_with("llvm.aarch64.neon.uqadd.v") =>
{
intrinsic_args!(fx, args => (x, y); intrinsic);
simd_pair_for_each_lane_typed(fx, x, y, ret, &|fx, x_lane, y_lane| {
@ -52,7 +54,9 @@ pub(crate) fn codegen_aarch64_llvm_intrinsic_call<'tcx>(
});
}
_ if intrinsic.starts_with("llvm.aarch64.neon.sqsub.v") => {
_ if intrinsic.starts_with("llvm.aarch64.neon.sqsub.v")
|| intrinsic.starts_with("llvm.aarch64.neon.uqsub.v") =>
{
intrinsic_args!(fx, args => (x, y); intrinsic);
simd_pair_for_each_lane_typed(fx, x, y, ret, &|fx, x_lane, y_lane| {
@ -156,6 +160,90 @@ pub(crate) fn codegen_aarch64_llvm_intrinsic_call<'tcx>(
});
}
_ if intrinsic.starts_with("llvm.aarch64.neon.umaxp.v") => {
intrinsic_args!(fx, args => (x, y); intrinsic);
simd_horizontal_pair_for_each_lane(
fx,
x,
y,
ret,
&|fx, _lane_ty, _res_lane_ty, x_lane, y_lane| fx.bcx.ins().umax(x_lane, y_lane),
);
}
_ if intrinsic.starts_with("llvm.aarch64.neon.smaxp.v") => {
intrinsic_args!(fx, args => (x, y); intrinsic);
simd_horizontal_pair_for_each_lane(
fx,
x,
y,
ret,
&|fx, _lane_ty, _res_lane_ty, x_lane, y_lane| fx.bcx.ins().smax(x_lane, y_lane),
);
}
_ if intrinsic.starts_with("llvm.aarch64.neon.uminp.v") => {
intrinsic_args!(fx, args => (x, y); intrinsic);
simd_horizontal_pair_for_each_lane(
fx,
x,
y,
ret,
&|fx, _lane_ty, _res_lane_ty, x_lane, y_lane| fx.bcx.ins().umin(x_lane, y_lane),
);
}
_ if intrinsic.starts_with("llvm.aarch64.neon.sminp.v") => {
intrinsic_args!(fx, args => (x, y); intrinsic);
simd_horizontal_pair_for_each_lane(
fx,
x,
y,
ret,
&|fx, _lane_ty, _res_lane_ty, x_lane, y_lane| fx.bcx.ins().smin(x_lane, y_lane),
);
}
_ if intrinsic.starts_with("llvm.aarch64.neon.fminp.v") => {
intrinsic_args!(fx, args => (x, y); intrinsic);
simd_horizontal_pair_for_each_lane(
fx,
x,
y,
ret,
&|fx, _lane_ty, _res_lane_ty, x_lane, y_lane| fx.bcx.ins().fmin(x_lane, y_lane),
);
}
_ if intrinsic.starts_with("llvm.aarch64.neon.fmaxp.v") => {
intrinsic_args!(fx, args => (x, y); intrinsic);
simd_horizontal_pair_for_each_lane(
fx,
x,
y,
ret,
&|fx, _lane_ty, _res_lane_ty, x_lane, y_lane| fx.bcx.ins().fmax(x_lane, y_lane),
);
}
_ if intrinsic.starts_with("llvm.aarch64.neon.addp.v") => {
intrinsic_args!(fx, args => (x, y); intrinsic);
simd_horizontal_pair_for_each_lane(
fx,
x,
y,
ret,
&|fx, _lane_ty, _res_lane_ty, x_lane, y_lane| fx.bcx.ins().iadd(x_lane, y_lane),
);
}
// FIXME generalize vector types
"llvm.aarch64.neon.tbl1.v16i8" => {
intrinsic_args!(fx, args => (t, idx); intrinsic);
@ -172,25 +260,6 @@ pub(crate) fn codegen_aarch64_llvm_intrinsic_call<'tcx>(
}
}
// FIXME generalize vector types
"llvm.aarch64.neon.umaxp.v16i8" => {
intrinsic_args!(fx, args => (a, b); intrinsic);
// FIXME add helper for horizontal pairwise operations
for i in 0..8 {
let lane1 = a.value_lane(fx, i * 2).load_scalar(fx);
let lane2 = a.value_lane(fx, i * 2 + 1).load_scalar(fx);
let res = fx.bcx.ins().umax(lane1, lane2);
ret.place_lane(fx, i).to_ptr().store(fx, res, MemFlags::trusted());
}
for i in 0..8 {
let lane1 = b.value_lane(fx, i * 2).load_scalar(fx);
let lane2 = b.value_lane(fx, i * 2 + 1).load_scalar(fx);
let res = fx.bcx.ins().umax(lane1, lane2);
ret.place_lane(fx, 8 + i).to_ptr().store(fx, res, MemFlags::trusted());
}
}
/*
_ if intrinsic.starts_with("llvm.aarch64.neon.sshl.v")
|| intrinsic.starts_with("llvm.aarch64.neon.sqshl.v")

View File

@ -20,16 +20,21 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
// Used by is_x86_feature_detected!();
"llvm.x86.xgetbv" => {
// FIXME use the actual xgetbv instruction
intrinsic_args!(fx, args => (v); intrinsic);
intrinsic_args!(fx, args => (xcr_no); intrinsic);
let v = v.load_scalar(fx);
let xcr_no = xcr_no.load_scalar(fx);
// As of writing on XCR0 exists
fx.bcx.ins().trapnz(v, TrapCode::UnreachableCodeReached);
crate::inline_asm::codegen_xgetbv(fx, xcr_no, ret);
}
let res = fx.bcx.ins().iconst(types::I64, 1 /* bit 0 must be set */);
ret.write_cvalue(fx, CValue::by_val(res, fx.layout_of(fx.tcx.types.i64)));
"llvm.x86.sse3.ldu.dq" | "llvm.x86.avx.ldu.dq.256" => {
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm_lddqu_si128&ig_expand=4009
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm256_lddqu_si256&ig_expand=4010
intrinsic_args!(fx, args => (ptr); intrinsic);
// FIXME correctly handle unalignedness
let val = CValue::by_ref(Pointer::new(ptr.load_scalar(fx)), ret.layout());
ret.write_cvalue(fx, val);
}
"llvm.x86.sse.cmp.ps" | "llvm.x86.sse2.cmp.pd" => {
@ -177,8 +182,12 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
}
}
}
"llvm.x86.avx2.vperm2i128" => {
"llvm.x86.avx2.vperm2i128"
| "llvm.x86.avx.vperm2f128.ps.256"
| "llvm.x86.avx.vperm2f128.pd.256" => {
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm256_permute2x128_si256
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm256_permute2f128_ps
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm256_permute2f128_pd
let (a, b, imm8) = match args {
[a, b, imm8] => (a, b, imm8),
_ => bug!("wrong number of args for intrinsic {intrinsic}"),
@ -187,19 +196,11 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
let b = codegen_operand(fx, b);
let imm8 = codegen_operand(fx, imm8).load_scalar(fx);
let a_0 = a.value_lane(fx, 0).load_scalar(fx);
let a_1 = a.value_lane(fx, 1).load_scalar(fx);
let a_low = fx.bcx.ins().iconcat(a_0, a_1);
let a_2 = a.value_lane(fx, 2).load_scalar(fx);
let a_3 = a.value_lane(fx, 3).load_scalar(fx);
let a_high = fx.bcx.ins().iconcat(a_2, a_3);
let a_low = a.value_typed_lane(fx, fx.tcx.types.u128, 0).load_scalar(fx);
let a_high = a.value_typed_lane(fx, fx.tcx.types.u128, 1).load_scalar(fx);
let b_0 = b.value_lane(fx, 0).load_scalar(fx);
let b_1 = b.value_lane(fx, 1).load_scalar(fx);
let b_low = fx.bcx.ins().iconcat(b_0, b_1);
let b_2 = b.value_lane(fx, 2).load_scalar(fx);
let b_3 = b.value_lane(fx, 3).load_scalar(fx);
let b_high = fx.bcx.ins().iconcat(b_2, b_3);
let b_low = b.value_typed_lane(fx, fx.tcx.types.u128, 0).load_scalar(fx);
let b_high = b.value_typed_lane(fx, fx.tcx.types.u128, 1).load_scalar(fx);
fn select4(
fx: &mut FunctionCx<'_, '_, '_>,
@ -224,16 +225,20 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
let control0 = imm8;
let res_low = select4(fx, a_high, a_low, b_high, b_low, control0);
let (res_0, res_1) = fx.bcx.ins().isplit(res_low);
let control1 = fx.bcx.ins().ushr_imm(imm8, 4);
let res_high = select4(fx, a_high, a_low, b_high, b_low, control1);
let (res_2, res_3) = fx.bcx.ins().isplit(res_high);
ret.place_lane(fx, 0).to_ptr().store(fx, res_0, MemFlags::trusted());
ret.place_lane(fx, 1).to_ptr().store(fx, res_1, MemFlags::trusted());
ret.place_lane(fx, 2).to_ptr().store(fx, res_2, MemFlags::trusted());
ret.place_lane(fx, 3).to_ptr().store(fx, res_3, MemFlags::trusted());
ret.place_typed_lane(fx, fx.tcx.types.u128, 0).to_ptr().store(
fx,
res_low,
MemFlags::trusted(),
);
ret.place_typed_lane(fx, fx.tcx.types.u128, 1).to_ptr().store(
fx,
res_high,
MemFlags::trusted(),
);
}
"llvm.x86.ssse3.pabs.b.128" | "llvm.x86.ssse3.pabs.w.128" | "llvm.x86.ssse3.pabs.d.128" => {
let a = match args {
@ -309,7 +314,9 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
fx.bcx.ins().sshr(a_lane, saturated_count)
});
}
"llvm.x86.sse2.psad.bw" => {
"llvm.x86.sse2.psad.bw" | "llvm.x86.avx2.psad.bw" => {
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm_sad_epu8&ig_expand=5770
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm256_sad_epu8&ig_expand=5771
intrinsic_args!(fx, args => (a, b); intrinsic);
assert_eq!(a.layout(), b.layout());
@ -340,7 +347,9 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
ret.place_lane(fx, out_lane_idx).write_cvalue(fx, res_lane);
}
}
"llvm.x86.ssse3.pmadd.ub.sw.128" => {
"llvm.x86.ssse3.pmadd.ub.sw.128" | "llvm.x86.avx2.pmadd.ub.sw" => {
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm_maddubs_epi16&ig_expand=4267
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm256_maddubs_epi16&ig_expand=4270
intrinsic_args!(fx, args => (a, b); intrinsic);
let (lane_count, lane_ty) = a.layout().ty.simd_size_and_type(fx.tcx);
@ -379,7 +388,9 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
ret.place_lane(fx, out_lane_idx).write_cvalue(fx, res_lane);
}
}
"llvm.x86.sse2.pmadd.wd" => {
"llvm.x86.sse2.pmadd.wd" | "llvm.x86.avx2.pmadd.wd" => {
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm_madd_epi16&ig_expand=4231
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm256_madd_epi16&ig_expand=4234
intrinsic_args!(fx, args => (a, b); intrinsic);
assert_eq!(a.layout(), b.layout());
@ -412,6 +423,369 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>(
ret.place_lane(fx, out_lane_idx).write_cvalue(fx, res_lane);
}
}
"llvm.x86.ssse3.pmul.hr.sw.128" => {
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm_mulhrs_epi16&ig_expand=4782
intrinsic_args!(fx, args => (a, b); intrinsic);
assert_eq!(a.layout(), b.layout());
let layout = a.layout();
let (lane_count, lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let (ret_lane_count, ret_lane_ty) = ret.layout().ty.simd_size_and_type(fx.tcx);
assert_eq!(lane_ty, fx.tcx.types.i16);
assert_eq!(ret_lane_ty, fx.tcx.types.i16);
assert_eq!(lane_count, ret_lane_count);
let ret_lane_layout = fx.layout_of(fx.tcx.types.i16);
for out_lane_idx in 0..lane_count {
let a_lane = a.value_lane(fx, out_lane_idx).load_scalar(fx);
let a_lane = fx.bcx.ins().sextend(types::I32, a_lane);
let b_lane = b.value_lane(fx, out_lane_idx).load_scalar(fx);
let b_lane = fx.bcx.ins().sextend(types::I32, b_lane);
let mul: Value = fx.bcx.ins().imul(a_lane, b_lane);
let shifted = fx.bcx.ins().ushr_imm(mul, 14);
let incremented = fx.bcx.ins().iadd_imm(shifted, 1);
let shifted_again = fx.bcx.ins().ushr_imm(incremented, 1);
let res_lane = fx.bcx.ins().ireduce(types::I16, shifted_again);
let res_lane = CValue::by_val(res_lane, ret_lane_layout);
ret.place_lane(fx, out_lane_idx).write_cvalue(fx, res_lane);
}
}
"llvm.x86.sse2.packuswb.128" => {
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm_packus_epi16&ig_expand=4903
intrinsic_args!(fx, args => (a, b); intrinsic);
assert_eq!(a.layout(), b.layout());
let layout = a.layout();
let (lane_count, lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let (ret_lane_count, ret_lane_ty) = ret.layout().ty.simd_size_and_type(fx.tcx);
assert_eq!(lane_ty, fx.tcx.types.i16);
assert_eq!(ret_lane_ty, fx.tcx.types.u8);
assert_eq!(lane_count * 2, ret_lane_count);
let zero = fx.bcx.ins().iconst(types::I16, 0);
let max_u8 = fx.bcx.ins().iconst(types::I16, 255);
let ret_lane_layout = fx.layout_of(fx.tcx.types.u8);
for idx in 0..lane_count {
let lane = a.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().smax(lane, zero);
let sat = fx.bcx.ins().umin(sat, max_u8);
let res = fx.bcx.ins().ireduce(types::I8, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, idx).write_cvalue(fx, res_lane);
}
for idx in 0..lane_count {
let lane = b.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().smax(lane, zero);
let sat = fx.bcx.ins().umin(sat, max_u8);
let res = fx.bcx.ins().ireduce(types::I8, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, lane_count + idx).write_cvalue(fx, res_lane);
}
}
"llvm.x86.avx2.packuswb" => {
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm256_packus_epi16&ig_expand=4906
intrinsic_args!(fx, args => (a, b); intrinsic);
assert_eq!(a.layout(), b.layout());
let layout = a.layout();
let (lane_count, lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let (ret_lane_count, ret_lane_ty) = ret.layout().ty.simd_size_and_type(fx.tcx);
assert_eq!(lane_ty, fx.tcx.types.i16);
assert_eq!(ret_lane_ty, fx.tcx.types.u8);
assert_eq!(lane_count * 2, ret_lane_count);
let zero = fx.bcx.ins().iconst(types::I16, 0);
let max_u8 = fx.bcx.ins().iconst(types::I16, 255);
let ret_lane_layout = fx.layout_of(fx.tcx.types.u8);
for idx in 0..lane_count / 2 {
let lane = a.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().smax(lane, zero);
let sat = fx.bcx.ins().umin(sat, max_u8);
let res = fx.bcx.ins().ireduce(types::I8, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, idx).write_cvalue(fx, res_lane);
}
for idx in 0..lane_count / 2 {
let lane = b.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().smax(lane, zero);
let sat = fx.bcx.ins().umin(sat, max_u8);
let res = fx.bcx.ins().ireduce(types::I8, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, lane_count / 2 + idx).write_cvalue(fx, res_lane);
}
for idx in 0..lane_count / 2 {
let lane = a.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().smax(lane, zero);
let sat = fx.bcx.ins().umin(sat, max_u8);
let res = fx.bcx.ins().ireduce(types::I8, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, lane_count / 2 * 2 + idx).write_cvalue(fx, res_lane);
}
for idx in 0..lane_count / 2 {
let lane = b.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().smax(lane, zero);
let sat = fx.bcx.ins().umin(sat, max_u8);
let res = fx.bcx.ins().ireduce(types::I8, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, lane_count / 2 * 3 + idx).write_cvalue(fx, res_lane);
}
}
"llvm.x86.sse2.packssdw.128" => {
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm_packs_epi32&ig_expand=4889
intrinsic_args!(fx, args => (a, b); intrinsic);
assert_eq!(a.layout(), b.layout());
let layout = a.layout();
let (lane_count, lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let (ret_lane_count, ret_lane_ty) = ret.layout().ty.simd_size_and_type(fx.tcx);
assert_eq!(lane_ty, fx.tcx.types.i32);
assert_eq!(ret_lane_ty, fx.tcx.types.i16);
assert_eq!(lane_count * 2, ret_lane_count);
let min_i16 = fx.bcx.ins().iconst(types::I32, i64::from(i16::MIN as u16));
let max_i16 = fx.bcx.ins().iconst(types::I32, i64::from(i16::MAX as u16));
let ret_lane_layout = fx.layout_of(fx.tcx.types.i16);
for idx in 0..lane_count {
let lane = a.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().smax(lane, min_i16);
let sat = fx.bcx.ins().umin(sat, max_i16);
let res = fx.bcx.ins().ireduce(types::I16, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, idx).write_cvalue(fx, res_lane);
}
for idx in 0..lane_count {
let lane = b.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().smax(lane, min_i16);
let sat = fx.bcx.ins().umin(sat, max_i16);
let res = fx.bcx.ins().ireduce(types::I16, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, lane_count + idx).write_cvalue(fx, res_lane);
}
}
"llvm.x86.sse41.packusdw" => {
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm_packus_epi32&ig_expand=4912
intrinsic_args!(fx, args => (a, b); intrinsic);
assert_eq!(a.layout(), b.layout());
let layout = a.layout();
let (lane_count, lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let (ret_lane_count, ret_lane_ty) = ret.layout().ty.simd_size_and_type(fx.tcx);
assert_eq!(lane_ty, fx.tcx.types.i32);
assert_eq!(ret_lane_ty, fx.tcx.types.u16);
assert_eq!(lane_count * 2, ret_lane_count);
let min_u16 = fx.bcx.ins().iconst(types::I32, i64::from(u16::MIN));
let max_u16 = fx.bcx.ins().iconst(types::I32, i64::from(u16::MAX));
let ret_lane_layout = fx.layout_of(fx.tcx.types.u16);
for idx in 0..lane_count {
let lane = a.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().umax(lane, min_u16);
let sat = fx.bcx.ins().umin(sat, max_u16);
let res = fx.bcx.ins().ireduce(types::I16, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, idx).write_cvalue(fx, res_lane);
}
for idx in 0..lane_count {
let lane = b.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().umax(lane, min_u16);
let sat = fx.bcx.ins().umin(sat, max_u16);
let res = fx.bcx.ins().ireduce(types::I16, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, lane_count + idx).write_cvalue(fx, res_lane);
}
}
"llvm.x86.avx2.packssdw" => {
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm256_packs_epi32&ig_expand=4892
intrinsic_args!(fx, args => (a, b); intrinsic);
assert_eq!(a.layout(), b.layout());
let layout = a.layout();
let (lane_count, lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let (ret_lane_count, ret_lane_ty) = ret.layout().ty.simd_size_and_type(fx.tcx);
assert_eq!(lane_ty, fx.tcx.types.i32);
assert_eq!(ret_lane_ty, fx.tcx.types.i16);
assert_eq!(lane_count * 2, ret_lane_count);
let min_i16 = fx.bcx.ins().iconst(types::I32, i64::from(i16::MIN as u16));
let max_i16 = fx.bcx.ins().iconst(types::I32, i64::from(i16::MAX as u16));
let ret_lane_layout = fx.layout_of(fx.tcx.types.i16);
for idx in 0..lane_count / 2 {
let lane = a.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().smax(lane, min_i16);
let sat = fx.bcx.ins().umin(sat, max_i16);
let res = fx.bcx.ins().ireduce(types::I16, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, idx).write_cvalue(fx, res_lane);
}
for idx in 0..lane_count / 2 {
let lane = b.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().smax(lane, min_i16);
let sat = fx.bcx.ins().umin(sat, max_i16);
let res = fx.bcx.ins().ireduce(types::I16, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, lane_count / 2 + idx).write_cvalue(fx, res_lane);
}
for idx in 0..lane_count / 2 {
let lane = a.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().smax(lane, min_i16);
let sat = fx.bcx.ins().umin(sat, max_i16);
let res = fx.bcx.ins().ireduce(types::I16, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, lane_count / 2 * 2 + idx).write_cvalue(fx, res_lane);
}
for idx in 0..lane_count / 2 {
let lane = b.value_lane(fx, idx).load_scalar(fx);
let sat = fx.bcx.ins().smax(lane, min_i16);
let sat = fx.bcx.ins().umin(sat, max_i16);
let res = fx.bcx.ins().ireduce(types::I16, sat);
let res_lane = CValue::by_val(res, ret_lane_layout);
ret.place_lane(fx, lane_count / 2 * 3 + idx).write_cvalue(fx, res_lane);
}
}
"llvm.x86.pclmulqdq" => {
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm_clmulepi64_si128&ig_expand=772
intrinsic_args!(fx, args => (a, b, imm8); intrinsic);
assert_eq!(a.layout(), b.layout());
let layout = a.layout();
let (lane_count, lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let (ret_lane_count, ret_lane_ty) = ret.layout().ty.simd_size_and_type(fx.tcx);
assert_eq!(lane_ty, fx.tcx.types.i64);
assert_eq!(ret_lane_ty, fx.tcx.types.i64);
assert_eq!(lane_count, 2);
assert_eq!(ret_lane_count, 2);
let imm8 = imm8.load_scalar(fx);
let control0 = fx.bcx.ins().band_imm(imm8, 0b0000_0001);
let a_lane0 = a.value_lane(fx, 0).load_scalar(fx);
let a_lane1 = a.value_lane(fx, 1).load_scalar(fx);
let temp1 = fx.bcx.ins().select(control0, a_lane1, a_lane0);
let control4 = fx.bcx.ins().band_imm(imm8, 0b0001_0000);
let b_lane0 = b.value_lane(fx, 0).load_scalar(fx);
let b_lane1 = b.value_lane(fx, 1).load_scalar(fx);
let temp2 = fx.bcx.ins().select(control4, b_lane1, b_lane0);
fn extract_bit(fx: &mut FunctionCx<'_, '_, '_>, val: Value, bit: i64) -> Value {
let tmp = fx.bcx.ins().ushr_imm(val, bit);
fx.bcx.ins().band_imm(tmp, 1)
}
let mut res1 = fx.bcx.ins().iconst(types::I64, 0);
for i in 0..=63 {
let x = extract_bit(fx, temp1, 0);
let y = extract_bit(fx, temp2, i);
let mut temp = fx.bcx.ins().band(x, y);
for j in 1..=i {
let x = extract_bit(fx, temp1, j);
let y = extract_bit(fx, temp2, i - j);
let z = fx.bcx.ins().band(x, y);
temp = fx.bcx.ins().bxor(temp, z);
}
let temp = fx.bcx.ins().ishl_imm(temp, i);
res1 = fx.bcx.ins().bor(res1, temp);
}
ret.place_lane(fx, 0).to_ptr().store(fx, res1, MemFlags::trusted());
let mut res2 = fx.bcx.ins().iconst(types::I64, 0);
for i in 64..=127 {
let mut temp = fx.bcx.ins().iconst(types::I64, 0);
for j in i - 63..=63 {
let x = extract_bit(fx, temp1, j);
let y = extract_bit(fx, temp2, i - j);
let z = fx.bcx.ins().band(x, y);
temp = fx.bcx.ins().bxor(temp, z);
}
let temp = fx.bcx.ins().ishl_imm(temp, i);
res2 = fx.bcx.ins().bor(res2, temp);
}
ret.place_lane(fx, 1).to_ptr().store(fx, res2, MemFlags::trusted());
}
"llvm.x86.avx.ptestz.256" => {
// https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm256_testz_si256&ig_expand=6945
intrinsic_args!(fx, args => (a, b); intrinsic);
assert_eq!(a.layout(), b.layout());
let layout = a.layout();
let (lane_count, lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
assert_eq!(lane_ty, fx.tcx.types.i64);
assert_eq!(ret.layout().ty, fx.tcx.types.i32);
assert_eq!(lane_count, 4);
let a_lane0 = a.value_lane(fx, 0).load_scalar(fx);
let a_lane1 = a.value_lane(fx, 1).load_scalar(fx);
let a_lane2 = a.value_lane(fx, 2).load_scalar(fx);
let a_lane3 = a.value_lane(fx, 3).load_scalar(fx);
let b_lane0 = b.value_lane(fx, 0).load_scalar(fx);
let b_lane1 = b.value_lane(fx, 1).load_scalar(fx);
let b_lane2 = b.value_lane(fx, 2).load_scalar(fx);
let b_lane3 = b.value_lane(fx, 3).load_scalar(fx);
let zero0 = fx.bcx.ins().band(a_lane0, b_lane0);
let zero1 = fx.bcx.ins().band(a_lane1, b_lane1);
let zero2 = fx.bcx.ins().band(a_lane2, b_lane2);
let zero3 = fx.bcx.ins().band(a_lane3, b_lane3);
let all_zero0 = fx.bcx.ins().bor(zero0, zero1);
let all_zero1 = fx.bcx.ins().bor(zero2, zero3);
let all_zero = fx.bcx.ins().bor(all_zero0, all_zero1);
let res = fx.bcx.ins().icmp_imm(IntCC::Equal, all_zero, 0);
let res = CValue::by_val(
fx.bcx.ins().uextend(types::I32, res),
fx.layout_of(fx.tcx.types.i32),
);
ret.write_cvalue(fx, res);
}
_ => {
fx.tcx
.sess

View File

@ -132,6 +132,65 @@ fn simd_pair_for_each_lane<'tcx>(
}
}
fn simd_horizontal_pair_for_each_lane<'tcx>(
fx: &mut FunctionCx<'_, '_, 'tcx>,
x: CValue<'tcx>,
y: CValue<'tcx>,
ret: CPlace<'tcx>,
f: &dyn Fn(&mut FunctionCx<'_, '_, 'tcx>, Ty<'tcx>, Ty<'tcx>, Value, Value) -> Value,
) {
assert_eq!(x.layout(), y.layout());
let layout = x.layout();
let (lane_count, lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let lane_layout = fx.layout_of(lane_ty);
let (ret_lane_count, ret_lane_ty) = ret.layout().ty.simd_size_and_type(fx.tcx);
let ret_lane_layout = fx.layout_of(ret_lane_ty);
assert_eq!(lane_count, ret_lane_count);
for lane_idx in 0..lane_count {
let src = if lane_idx < (lane_count / 2) { x } else { y };
let src_idx = lane_idx % (lane_count / 2);
let lhs_lane = src.value_lane(fx, src_idx * 2).load_scalar(fx);
let rhs_lane = src.value_lane(fx, src_idx * 2 + 1).load_scalar(fx);
let res_lane = f(fx, lane_layout.ty, ret_lane_layout.ty, lhs_lane, rhs_lane);
let res_lane = CValue::by_val(res_lane, ret_lane_layout);
ret.place_lane(fx, lane_idx).write_cvalue(fx, res_lane);
}
}
fn simd_trio_for_each_lane<'tcx>(
fx: &mut FunctionCx<'_, '_, 'tcx>,
x: CValue<'tcx>,
y: CValue<'tcx>,
z: CValue<'tcx>,
ret: CPlace<'tcx>,
f: &dyn Fn(&mut FunctionCx<'_, '_, 'tcx>, Ty<'tcx>, Ty<'tcx>, Value, Value, Value) -> Value,
) {
assert_eq!(x.layout(), y.layout());
let layout = x.layout();
let (lane_count, lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let lane_layout = fx.layout_of(lane_ty);
let (ret_lane_count, ret_lane_ty) = ret.layout().ty.simd_size_and_type(fx.tcx);
let ret_lane_layout = fx.layout_of(ret_lane_ty);
assert_eq!(lane_count, ret_lane_count);
for lane_idx in 0..lane_count {
let x_lane = x.value_lane(fx, lane_idx).load_scalar(fx);
let y_lane = y.value_lane(fx, lane_idx).load_scalar(fx);
let z_lane = z.value_lane(fx, lane_idx).load_scalar(fx);
let res_lane = f(fx, lane_layout.ty, ret_lane_layout.ty, x_lane, y_lane, z_lane);
let res_lane = CValue::by_val(res_lane, ret_lane_layout);
ret.place_lane(fx, lane_idx).write_cvalue(fx, res_lane);
}
}
fn simd_reduce<'tcx>(
fx: &mut FunctionCx<'_, '_, 'tcx>,
val: CValue<'tcx>,

View File

@ -243,6 +243,34 @@ impl<'tcx> CValue<'tcx> {
let (lane_count, lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let lane_layout = fx.layout_of(lane_ty);
assert!(lane_idx < lane_count);
match self.0 {
CValueInner::ByVal(_) | CValueInner::ByValPair(_, _) => unreachable!(),
CValueInner::ByRef(ptr, None) => {
let field_offset = lane_layout.size * lane_idx;
let field_ptr = ptr.offset_i64(fx, i64::try_from(field_offset.bytes()).unwrap());
CValue::by_ref(field_ptr, lane_layout)
}
CValueInner::ByRef(_, Some(_)) => unreachable!(),
}
}
/// Like [`CValue::value_field`] except using the passed type as lane type instead of the one
/// specified by the vector type.
pub(crate) fn value_typed_lane(
self,
fx: &mut FunctionCx<'_, '_, 'tcx>,
lane_ty: Ty<'tcx>,
lane_idx: u64,
) -> CValue<'tcx> {
let layout = self.1;
assert!(layout.ty.is_simd());
let (orig_lane_count, orig_lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let lane_layout = fx.layout_of(lane_ty);
assert!(
(lane_idx + 1) * lane_layout.size <= orig_lane_count * fx.layout_of(orig_lane_ty).size
);
match self.0 {
CValueInner::ByVal(_) | CValueInner::ByValPair(_, _) => unreachable!(),
CValueInner::ByRef(ptr, None) => {
@ -734,6 +762,34 @@ impl<'tcx> CPlace<'tcx> {
}
}
/// Like [`CPlace::place_field`] except using the passed type as lane type instead of the one
/// specified by the vector type.
pub(crate) fn place_typed_lane(
self,
fx: &mut FunctionCx<'_, '_, 'tcx>,
lane_ty: Ty<'tcx>,
lane_idx: u64,
) -> CPlace<'tcx> {
let layout = self.layout();
assert!(layout.ty.is_simd());
let (orig_lane_count, orig_lane_ty) = layout.ty.simd_size_and_type(fx.tcx);
let lane_layout = fx.layout_of(lane_ty);
assert!(
(lane_idx + 1) * lane_layout.size <= orig_lane_count * fx.layout_of(orig_lane_ty).size
);
match self.inner {
CPlaceInner::Var(_, _) => unreachable!(),
CPlaceInner::VarPair(_, _, _) => unreachable!(),
CPlaceInner::Addr(ptr, None) => {
let field_offset = lane_layout.size * lane_idx;
let field_ptr = ptr.offset_i64(fx, i64::try_from(field_offset.bytes()).unwrap());
CPlace::for_ptr(field_ptr, lane_layout)
}
CPlaceInner::Addr(_, Some(_)) => unreachable!(),
}
}
pub(crate) fn place_index(
self,
fx: &mut FunctionCx<'_, '_, 'tcx>,