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Merge pull request #2016 from jgouly/saturating-math

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arm64: Implement saturating SIMD arithmetic
This commit is contained in:
Chris Fallin
2020-07-14 11:24:10 -07:00
committed by GitHub
parent fad2affad0 aa84a4173c
commit 4ba3ee3368
5 changed files with 260 additions and 64 deletions
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4
cranelift/codegen/src/isa/aarch64/inst/emit.rs
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@@ -1338,18 +1338,22 @@ impl MachInstEmit for Inst {
debug_assert_eq!(I64, ty);
(0b010_11110_11_1, 0b000011)
}
VecALUOp::Sqadd => (0b010_01110_00_1 | enc_size << 1, 0b000011),
VecALUOp::SQSubScalar => {
debug_assert_eq!(I64, ty);
(0b010_11110_11_1, 0b001011)
}
VecALUOp::Sqsub => (0b010_01110_00_1 | enc_size << 1, 0b001011),
VecALUOp::UQAddScalar => {
debug_assert_eq!(I64, ty);
(0b011_11110_11_1, 0b000011)
}
VecALUOp::Uqadd => (0b011_01110_00_1 | enc_size << 1, 0b000011),
VecALUOp::UQSubScalar => {
debug_assert_eq!(I64, ty);
(0b011_11110_11_1, 0b001011)
}
VecALUOp::Uqsub => (0b011_01110_00_1 | enc_size << 1, 0b001011),
VecALUOp::Cmeq => (0b011_01110_00_1 | enc_size << 1, 0b100011),
VecALUOp::Cmge => (0b010_01110_00_1 | enc_size << 1, 0b001111),
VecALUOp::Cmgt => (0b010_01110_00_1 | enc_size << 1, 0b001101),