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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| use super::{InlineAsmArch, InlineAsmType}; | ||
| use rustc_macros::HashStable_Generic; | ||
|
|
||
| def_reg_class! { | ||
| Wasm WasmInlineAsmRegClass { | ||
| local, | ||
| } | ||
| } | ||
|
|
||
| impl WasmInlineAsmRegClass { | ||
| pub fn valid_modifiers(self, _arch: super::InlineAsmArch) -> &'static [char] { | ||
| &[] | ||
| } | ||
|
|
||
| pub fn suggest_class(self, _arch: InlineAsmArch, _ty: InlineAsmType) -> Option<Self> { | ||
| None | ||
| } | ||
|
|
||
| pub fn suggest_modifier( | ||
| self, | ||
| _arch: InlineAsmArch, | ||
| _ty: InlineAsmType, | ||
| ) -> Option<(char, &'static str)> { | ||
| None | ||
| } | ||
|
|
||
| pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { | ||
| None | ||
| } | ||
|
|
||
| pub fn supported_types( | ||
| self, | ||
| _arch: InlineAsmArch, | ||
| ) -> &'static [(InlineAsmType, Option<&'static str>)] { | ||
| match self { | ||
| Self::local => { | ||
| types! { _: I8, I16, I32, I64, F32, F64; } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| def_regs! { | ||
| // WebAssembly doesn't have registers. | ||
| Wasm WasmInlineAsmReg WasmInlineAsmRegClass {} | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| // no-system-llvm | ||
| // assembly-output: emit-asm | ||
| // compile-flags: --target wasm32-unknown-unknown | ||
| // compile-flags: --crate-type cdylib | ||
| // needs-llvm-components: webassembly | ||
|
|
||
| #![feature(no_core, lang_items, rustc_attrs)] | ||
| #![no_core] | ||
|
|
||
| #[rustc_builtin_macro] | ||
| macro_rules! asm { | ||
| () => {}; | ||
| } | ||
| #[rustc_builtin_macro] | ||
| macro_rules! concat { | ||
| () => {}; | ||
| } | ||
|
|
||
| #[lang = "sized"] | ||
| trait Sized {} | ||
| #[lang = "copy"] | ||
| trait Copy {} | ||
|
|
||
| type ptr = *mut u8; | ||
|
|
||
| impl Copy for i8 {} | ||
| impl Copy for i16 {} | ||
| impl Copy for i32 {} | ||
| impl Copy for f32 {} | ||
| impl Copy for i64 {} | ||
| impl Copy for f64 {} | ||
| impl Copy for ptr {} | ||
|
|
||
| extern "C" { | ||
| fn extern_func(); | ||
| static extern_static: u8; | ||
| } | ||
|
|
||
| // CHECK-LABEL: sym_fn: | ||
| // CHECK: #APP | ||
| // CHECK: call extern_func | ||
| // CHECK: #NO_APP | ||
| #[no_mangle] | ||
| pub unsafe fn sym_fn() { | ||
| asm!("call {}", sym extern_func); | ||
| } | ||
|
|
||
| // CHECK-LABEL: sym_static | ||
| // CHECK: #APP | ||
| // CHECK: i32.const 42 | ||
| // CHECK: i32.store extern_static | ||
| // CHECK: #NO_APP | ||
| #[no_mangle] | ||
| pub unsafe fn sym_static() { | ||
| asm!(" | ||
| i32.const 42 | ||
| i32.store {} | ||
| ", sym extern_static); | ||
| } | ||
|
|
||
| macro_rules! check { | ||
| ($func:ident $ty:ident $instr:literal) => { | ||
| #[no_mangle] | ||
| pub unsafe fn $func(x: $ty) -> $ty { | ||
| let y; | ||
| asm!(concat!("local.get {}\n", $instr, "\nlocal.set {}"), in(local) x, out(local) y); | ||
| y | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| // CHECK-LABEL: i8_i32: | ||
| // CHECK: #APP | ||
| // CHECK: local.get {{[0-9]}} | ||
| // CHECK: i32.clz | ||
| // CHECK: local.set {{[0-9]}} | ||
| // CHECK: #NO_APP | ||
| check!(i8_i32 i8 "i32.clz"); | ||
|
|
||
| // CHECK-LABEL: i16_i32: | ||
| // CHECK: #APP | ||
| // CHECK: local.get {{[0-9]}} | ||
| // CHECK: i32.clz | ||
| // CHECK: local.set {{[0-9]}} | ||
| // CHECK: #NO_APP | ||
| check!(i16_i32 i16 "i32.clz"); | ||
|
|
||
| // CHECK-LABEL: i32_i32: | ||
| // CHECK: #APP | ||
| // CHECK: local.get {{[0-9]}} | ||
| // CHECK: i32.clz | ||
| // CHECK: local.set {{[0-9]}} | ||
| // CHECK: #NO_APP | ||
| check!(i32_i32 i32 "i32.clz"); | ||
|
|
||
| // CHECK-LABEL: i8_i64 | ||
| // CHECK: #APP | ||
| // CHECK: local.get {{[0-9]}} | ||
| // CHECK: i64.clz | ||
| // CHECK: local.set {{[0-9]}} | ||
| // CHECK: #NO_APP | ||
| check!(i8_i64 i8 "i64.clz"); | ||
|
|
||
| // CHECK-LABEL: i16_i64 | ||
| // CHECK: #APP | ||
| // CHECK: local.get {{[0-9]}} | ||
| // CHECK: i64.clz | ||
| // CHECK: local.set {{[0-9]}} | ||
| // CHECK: #NO_APP | ||
| check!(i16_i64 i16 "i64.clz"); | ||
|
|
||
| // CHECK-LABEL: i32_i64 | ||
| // CHECK: #APP | ||
| // CHECK: local.get {{[0-9]}} | ||
| // CHECK: i64.clz | ||
| // CHECK: local.set {{[0-9]}} | ||
| // CHECK: #NO_APP | ||
| check!(i32_i64 i32 "i64.clz"); | ||
|
|
||
| // CHECK-LABEL: i64_i64 | ||
| // CHECK: #APP | ||
| // CHECK: local.get {{[0-9]}} | ||
| // CHECK: i64.clz | ||
| // CHECK: local.set {{[0-9]}} | ||
| // CHECK: #NO_APP | ||
| check!(i64_i64 i64 "i64.clz"); | ||
|
|
||
| // CHECK-LABEL: f32_f32 | ||
| // CHECK: #APP | ||
| // CHECK: local.get {{[0-9]}} | ||
| // CHECK: f32.abs | ||
| // CHECK: local.set {{[0-9]}} | ||
| // CHECK: #NO_APP | ||
| check!(f32_f32 f32 "f32.abs"); | ||
|
|
||
| // CHECK-LABEL: f64_f64 | ||
| // CHECK: #APP | ||
| // CHECK: local.get {{[0-9]}} | ||
| // CHECK: f64.abs | ||
| // CHECK: local.set {{[0-9]}} | ||
| // CHECK: #NO_APP | ||
| check!(f64_f64 f64 "f64.abs"); | ||
|
|
||
| // CHECK-LABEL: i32_ptr | ||
| // CHECK: #APP | ||
| // CHECK: local.get {{[0-9]}} | ||
| // CHECK: i32.eqz | ||
| // CHECK: local.set {{[0-9]}} | ||
| // CHECK: #NO_APP | ||
| check!(i32_ptr ptr "i32.eqz"); |
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