rust-lang · lengrongfu · Jun 6, 2024 · Jun 27, 2024
diff --git a/compiler/rustc_target/src/asm/aarch64.rs b/compiler/rustc_target/src/asm/aarch64.rs
@@ -59,9 +59,9 @@ impl AArch64InlineAsmRegClass {
         match self {
             Self::reg => types! { _: I8, I16, I32, I64, F32, F64; },
             Self::vreg | Self::vreg_low16 => types! {
-                neon: I8, I16, I32, I64, F32, F64,
+                neon: I8, I16, I32, I64, F16, F32, F64,
                     VecI8(8), VecI16(4), VecI32(2), VecI64(1), VecF32(2), VecF64(1),
-                    VecI8(16), VecI16(8), VecI32(4), VecI64(2), VecF32(4), VecF64(2);
+                    VecI8(16), VecI16(8), VecI32(4), VecI64(2), VecF16(4),VecF16(8),VecF32(4), VecF64(2);
             },
             Self::preg => &[],
         }

diff --git a/library/backtrace b/library/backtrace
diff --git a/src/doc/book b/src/doc/book
diff --git a/src/doc/edition-guide b/src/doc/edition-guide
diff --git a/src/doc/reference b/src/doc/reference
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
diff --git a/src/tools/cargo b/src/tools/cargo
diff --git a/tests/ui/asm/aarch64/type-check-3.stderr b/tests/ui/asm/aarch64/type-check-3.stderr
@@ -111,7 +111,7 @@ error: type `Simd256bit` cannot be used with this register class
 LL |         asm!("{}", in(vreg) f64x4);
    |                             ^^^^^
    |
-   = note: register class `vreg` supports these types: i8, i16, i32, i64, f32, f64, i8x8, i16x4, i32x2, i64x1, f32x2, f64x1, i8x16, i16x8, i32x4, i64x2, f32x4, f64x2
+   = note: register class `vreg` supports these types: i8, i16, i32, i64, f16, f32, f64, i8x8, i16x4, i32x2, i64x1, f32x2, f64x1, i8x16, i16x8, i32x4, i64x2, f16x4, f16x8, f32x4, f64x2
 
 error: incompatible types for asm inout argument
   --> $DIR/type-check-3.rs:88:33

diff --git a/tests/ui/asm/aarch64/type-f16.rs b/tests/ui/asm/aarch64/type-f16.rs
@@ -0,0 +1,21 @@
+//@ only-aarch64
+//@ run-pass
+
+#![feature(f16, f128)]
+use std::arch::asm;
+#[inline(never)]
+pub fn f32_to_f16_asm(a: f32) -> f16 {
+    let ret: f16;
+    unsafe {
+        asm!(
+        "fcvt    {ret:h}, {a:s}",
+        a = in(vreg) a,
+        ret = lateout(vreg) ret,
+        options(nomem, nostack),
+        );
+    }
+    ret
+}
+fn main() {
+    assert_eq!(f32_to_f16_asm(1.0 as f32), 1.0);
+}
+3 −3		Cargo.lock
+2 −2		Cargo.toml
+1 −1		crates/as-if-std/Cargo.toml
+2 −2		src/backtrace/dbghelp32.rs
+2 −2		src/backtrace/dbghelp64.rs
+2 −3		src/symbolize/dbghelp.rs
+10 −6		src/symbolize/gimli/coff.rs
+21 −3		src/symbolize/gimli/macho.rs
+1 −1		ADMIN_TASKS.md
+3 −2		listings/ch11-writing-automated-tests/no-listing-04-bug-in-add-two/output.txt
+1 −1		listings/ch11-writing-automated-tests/no-listing-04-bug-in-add-two/src/lib.rs
+16 −13		src/ch02-00-guessing-game-tutorial.md
+2 −2		src/ch03-03-how-functions-work.md
+12 −8		src/ch03-05-control-flow.md
+27 −21		src/ch11-01-writing-tests.md
+6 −4		src/ch11-02-running-tests.md
+5 −4		src/ch11-03-test-organization.md
+6 −4		src/ch12-01-accepting-command-line-arguments.md
+6 −4		src/ch12-02-reading-a-file.md
+30 −20		src/ch12-03-improving-error-handling-and-modularity.md
+15 −10		src/ch12-04-testing-the-librarys-functionality.md
+12 −8		src/ch12-05-working-with-environment-variables.md
+3 −2		src/ch12-06-writing-to-stderr-instead-of-stdout.md
+26 −18		src/ch13-01-closures.md
+18 −16		src/ch13-02-iterators.md
+18 −12		src/ch13-03-improving-our-io-project.md
+18 −12		src/ch14-02-publishing-to-crates-io.md
+3 −2		src/ch14-03-cargo-workspaces.md
+1 −2		src/SUMMARY.md
+4 −1		src/rust-2018/path-changes.md
+0 −84		src/rust-2024/intoiterator-box-slice.md
+0 −3		src/rust-2024/macro-fragment-specifiers.md
+12 −0		src/rust-2024/public-private-dependencies.md
+1 −1		.github/workflows/rbe.yml
+1 −7		TRANSLATING.md
+166 −194		po/ja.po
+2 −2		src/custom_types/structs.md
+1 −1		src/scope/borrow.md