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https://github.com/pezkuwichain/revive.git
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Cyrill Leutwiler
82ae22c163
- remove unused runtime API imports and constants - move runtime api symbols into the revive-runtime-api crate Signed-off-by: Cyrill Leutwiler <bigcyrill@hotmail.com>
31 lines
1.0 KiB
Rust
31 lines
1.0 KiB
Rust
//! Translates the cryptographic operations.
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use crate::polkavm::context::Context;
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use crate::polkavm::Dependency;
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/// Translates the `sha3` instruction.
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pub fn sha3<'ctx, D>(
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context: &mut Context<'ctx, D>,
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offset: inkwell::values::IntValue<'ctx>,
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length: inkwell::values::IntValue<'ctx>,
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) -> anyhow::Result<inkwell::values::BasicValueEnum<'ctx>>
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where
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D: Dependency + Clone,
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{
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let offset_casted = context.safe_truncate_int_to_xlen(offset)?;
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let length_casted = context.safe_truncate_int_to_xlen(length)?;
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let input_pointer = context.build_heap_gep(offset_casted, length_casted)?;
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let output_pointer = context.build_alloca(context.word_type(), "output_pointer");
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context.build_runtime_call(
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revive_runtime_api::polkavm_imports::HASH_KECCAK_256,
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&[
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input_pointer.to_int(context).into(),
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length_casted.into(),
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output_pointer.to_int(context).into(),
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],
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);
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context.build_byte_swap(context.build_load(output_pointer, "sha3_output")?)
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}
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