diff options
Diffstat (limited to 'llvm/lib/Target/WebAssembly/WebAssemblyInstrMemory.td')
| -rw-r--r-- | llvm/lib/Target/WebAssembly/WebAssemblyInstrMemory.td | 99 |
1 files changed, 73 insertions, 26 deletions
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyInstrMemory.td b/llvm/lib/Target/WebAssembly/WebAssemblyInstrMemory.td index 8457dc89c4d..dd4c2451622 100644 --- a/llvm/lib/Target/WebAssembly/WebAssemblyInstrMemory.td +++ b/llvm/lib/Target/WebAssembly/WebAssemblyInstrMemory.td @@ -14,37 +14,84 @@ /* * TODO(jfb): Add the following. - * Each has optional alignment and immediate byte offset. - * - * int32.load_sx[int8]: sign-extend to int32 - * int32.load_sx[int16]: sign-extend to int32 - * int32.load_zx[int8]: zero-extend to int32 - * int32.load_zx[int16]: zero-extend to int32 - * int32.load[int32]: (no conversion) - * int64.load_sx[int8]: sign-extend to int64 - * int64.load_sx[int16]: sign-extend to int64 - * int64.load_sx[int32]: sign-extend to int64 - * int64.load_zx[int8]: zero-extend to int64 - * int64.load_zx[int16]: zero-extend to int64 - * int64.load_zx[int32]: zero-extend to int64 - * int64.load[int64]: (no conversion) - * float32.load[float32]: (no conversion) - * float64.load[float64]: (no conversion) - * - * int32.store[int8]: wrap int32 to int8 - * int32.store[int16]: wrap int32 to int16 - * int32.store[int32]: (no conversion) - * int64.store[int8]: wrap int64 to int8 - * int64.store[int16]: wrap int64 to int16 - * int64.store[int32]: wrap int64 to int32 - * int64.store[int64]: (no conversion) - * float32.store[float32]: (no conversion) - * float64.store[float64]: (no conversion) * * load_global: load the value of a given global variable * store_global: store a given value to a given global variable */ +// FIXME: +// - HasAddr64 +// - WebAssemblyTargetLowering::isLegalAddressingMode +// - WebAssemblyTargetLowering having to do with atomics +// - Each has optional alignment and immediate byte offset. + +// WebAssembly has i8/i16/i32/i64/f32/f64 memory types, but doesn't have i8/i16 +// local types. These memory-only types instead zero- or sign-extend into local +// types when loading, and truncate when storing. + +// Basic load. +def LOAD_I32_ : I<(outs Int32:$dst), (ins Int32:$addr), + [(set Int32:$dst, (load Int32:$addr))]>; +def LOAD_I64_ : I<(outs Int64:$dst), (ins Int32:$addr), + [(set Int64:$dst, (load Int32:$addr))]>; +def LOAD_F32_ : I<(outs Float32:$dst), (ins Int32:$addr), + [(set Float32:$dst, (load Int32:$addr))]>; +def LOAD_F64_ : I<(outs Float64:$dst), (ins Int32:$addr), + [(set Float64:$dst, (load Int32:$addr))]>; + +// Extending load. +def LOAD_SX_I8_I32_ : I<(outs Int32:$dst), (ins Int32:$addr), + [(set Int32:$dst, (sextloadi8 Int32:$addr))]>; +def LOAD_ZX_I8_I32_ : I<(outs Int32:$dst), (ins Int32:$addr), + [(set Int32:$dst, (zextloadi8 Int32:$addr))]>; +def LOAD_SX_I16_I32_ : I<(outs Int32:$dst), (ins Int32:$addr), + [(set Int32:$dst, (sextloadi16 Int32:$addr))]>; +def LOAD_ZX_I16_I32_ : I<(outs Int32:$dst), (ins Int32:$addr), + [(set Int32:$dst, (zextloadi16 Int32:$addr))]>; +def LOAD_SX_I8_I64_ : I<(outs Int64:$dst), (ins Int32:$addr), + [(set Int64:$dst, (sextloadi8 Int32:$addr))]>; +def LOAD_ZX_I8_I64_ : I<(outs Int64:$dst), (ins Int32:$addr), + [(set Int64:$dst, (zextloadi8 Int32:$addr))]>; +def LOAD_SX_I16_I64_ : I<(outs Int64:$dst), (ins Int32:$addr), + [(set Int64:$dst, (sextloadi16 Int32:$addr))]>; +def LOAD_ZX_I16_I64_ : I<(outs Int64:$dst), (ins Int32:$addr), + [(set Int64:$dst, (zextloadi16 Int32:$addr))]>; +def LOAD_SX_I32_I64_ : I<(outs Int64:$dst), (ins Int32:$addr), + [(set Int64:$dst, (sextloadi32 Int32:$addr))]>; +def LOAD_ZX_I32_I64_ : I<(outs Int64:$dst), (ins Int32:$addr), + [(set Int64:$dst, (zextloadi32 Int32:$addr))]>; + +// "Don't care" extending load become zero-extending load. +def : Pat<(i32 (extloadi8 Int32:$addr)), (LOAD_ZX_I8_I32_ $addr)>; +def : Pat<(i32 (extloadi16 Int32:$addr)), (LOAD_ZX_I16_I32_ $addr)>; +def : Pat<(i64 (extloadi8 Int32:$addr)), (LOAD_ZX_I8_I64_ $addr)>; +def : Pat<(i64 (extloadi16 Int32:$addr)), (LOAD_ZX_I16_I64_ $addr)>; +def : Pat<(i64 (extloadi32 Int32:$addr)), (LOAD_ZX_I32_I64_ $addr)>; + +// Basic store. +// Note: WebAssembly inverts SelectionDAG's usual operand order. +def STORE_I32_ : I<(outs), (ins Int32:$addr, Int32:$val), + [(store Int32:$val, Int32:$addr)]>; +def STORE_I64_ : I<(outs), (ins Int32:$addr, Int64:$val), + [(store Int64:$val, Int32:$addr)]>; +def STORE_F32_ : I<(outs), (ins Int32:$addr, Float32:$val), + [(store Float32:$val, Int32:$addr)]>; +def STORE_F64_ : I<(outs), (ins Int32:$addr, Float64:$val), + [(store Float64:$val, Int32:$addr)]>; + +// Truncating store. +def STORE_I8_I32 : I<(outs), (ins Int32:$addr, Int32:$val), + [(truncstorei8 Int32:$val, Int32:$addr)]>; +def STORE_I16_I32 : I<(outs), (ins Int32:$addr, Int32:$val), + [(truncstorei16 Int32:$val, Int32:$addr)]>; +def STORE_I8_I64 : I<(outs), (ins Int32:$addr, Int64:$val), + [(truncstorei8 Int64:$val, Int32:$addr)]>; +def STORE_I16_I64 : I<(outs), (ins Int32:$addr, Int64:$val), + [(truncstorei16 Int64:$val, Int32:$addr)]>; +def STORE_I32_I64 : I<(outs), (ins Int32:$addr, Int64:$val), + [(truncstorei32 Int64:$val, Int32:$addr)]>; + +// Page size. def page_size_I32 : I<(outs Int32:$dst), (ins), [(set Int32:$dst, (int_wasm_page_size))]>, Requires<[HasAddr32]>; |
