Faster witness generation and create monorepo with halo2curves

.gitignore

@@ -2,5 +2,4 @@
 **/*.rs.bk
 Cargo.lock
 .vscode
-**/*.html
 .DS_Store

Cargo.toml

@@ -1,6 +1,21 @@
 [workspace]
 members = [
     "halo2",
-    "halo2_gadgets",
     "halo2_proofs",
+    "arithmetic/curves",
+    "primitives/poseidon"
 ]
+
+[profile.dev]
+opt-level = 3
+
+[profile.release]
+opt-level = 3
+debug = false
+debug-assertions = false
+overflow-checks = false
+lto = true
+incremental = false
+panic = "abort"
+# codegen-units = 1 is not optimal on my machine; always profile locally to determine best preferences
+# codegen-units = 1

arithmetic/curves/.github/workflows/ci.yml

@@ -0,0 +1,92 @@
+name: CI Check
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    if: github.event.pull_request.draft == false
+    name: Build
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - rust: 1.63.0
+            feature: default
+          - rust: nightly
+            feature: asm
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          override: true
+          toolchain: ${{ matrix.rust }}
+      - name: Build
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --features ${{ matrix.feature }}
+
+  test:
+    if: github.event.pull_request.draft == false
+    name: Test
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - rust: 1.63.0
+            feature: default
+          - rust: nightly
+            feature: asm
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          override: true
+          toolchain: ${{ matrix.rust }}
+      - name: Test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --verbose --release --all --features ${{ matrix.feature }}
+
+  fmt:
+    if: github.event.pull_request.draft == false
+    name: Rustfmt
+    timeout-minutes: 30
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+      - run: rustup component add rustfmt
+      - uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+  bench:
+    if: github.event.pull_request.draft == false
+    name: Bench
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          override: true
+          toolchain: nightly
+      - name: Bench arithmetic
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --profile bench test_field -- --nocapture
+      - name: Bench assembly arithmetic
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --profile bench test_field --features asm -- --nocapture

arithmetic/curves/.gitignore

@@ -0,0 +1,5 @@
+/target
+Cargo.lock
+**/*.rs.bk
+.vscode
+**/*.html

arithmetic/curves/Cargo.toml

@@ -0,0 +1,36 @@
+[package]
+name = "halo2curves"
+version = "0.3.1"
+authors = [
+  "Sean Bowe <[email protected]>",
+  "Jack Grigg <[email protected]>",
+  "Alex Vlasov <[email protected]>",
+  "Alex Gluchowski <[email protected]>"
+]
+license = "MIT/Apache-2.0"
+edition = "2018"
+readme = "README.md"
+description = "Elliptic curve implementations and wrappers for halo2 library"
+
+[dev-dependencies]
+criterion = { version = "0.3", features = ["html_reports"] }
+rand_xorshift = "0.3"
+ark-std = { version = "0.3", features = ["print-trace"] }
+
+[dependencies]
+subtle = "2.4"
+ff = "0.12"
+group = "0.12"
+pasta_curves = "0.4.1"
+static_assertions = "1.1.0"
+rand = "0.8"
+rand_core = { version = "0.6", default-features = false }
+lazy_static = { version = "1.4.0"}
+num-bigint = "0.4.3"
+num-traits = "0.2"
+serde = { version = "1.0", default-features = false, features = ["derive"] }
+
+[features]
+default = []
+asm = []
+prefetch = []

arithmetic/curves/LICENSE-APACHE

@@ -0,0 +1,201 @@
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arithmetic/curves/LICENSE-MIT

@@ -0,0 +1,23 @@
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
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+
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+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.