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Translate Wasm's I8x16ShrS to Cranelift's sshr.i8x16

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This commit is contained in:
Andrew Brown
2020-03-25 11:08:20 -07:00
parent d24f23285b
commit 4736a1c577
1 changed files with 2 additions and 3 deletions
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5
cranelift/wasm/src/code_translator.rs
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@@ -1415,7 +1415,7 @@ pub fn translate_operator<FE: FuncEnvironment + ?Sized>(
let b_mod_bitwidth = builder.ins().band_imm(b, bitwidth - 1); let b_mod_bitwidth = builder.ins().band_imm(b, bitwidth - 1);
state.push1(builder.ins().ushr(bitcast_a, b_mod_bitwidth)) state.push1(builder.ins().ushr(bitcast_a, b_mod_bitwidth))
} }
Operator::I16x8ShrS | Operator::I32x4ShrS => { Operator::I8x16ShrS | Operator::I16x8ShrS | Operator::I32x4ShrS => {
let (a, b) = state.pop2(); let (a, b) = state.pop2();
let bitcast_a = optionally_bitcast_vector(a, type_of(op), builder); let bitcast_a = optionally_bitcast_vector(a, type_of(op), builder);
let bitwidth = i64::from(builder.func.dfg.value_type(a).bits()); let bitwidth = i64::from(builder.func.dfg.value_type(a).bits());
@@ -1540,8 +1540,7 @@ pub fn translate_operator<FE: FuncEnvironment + ?Sized>(
let a = pop1_with_bitcast(state, I32X4, builder); let a = pop1_with_bitcast(state, I32X4, builder);
state.push1(builder.ins().fcvt_from_sint(F32X4, a)) state.push1(builder.ins().fcvt_from_sint(F32X4, a))
} }
Operator::I8x16ShrS Operator::I8x16Mul
| Operator::I8x16Mul
| Operator::I64x2Mul | Operator::I64x2Mul
| Operator::I64x2ShrS | Operator::I64x2ShrS
| Operator::I32x4TruncSatF32x4S | Operator::I32x4TruncSatF32x4S