One clippy lint and remove workspac

bril-rs/brillvm/Cargo.toml

@@ -1,4 +1,3 @@
-workspace = { members = ["runtime"] }
 [package]
 name = "brillvm"
 version = "0.1.0"
@@ -29,12 +28,3 @@ features = ["float", "ssa", "memory"]
 [[bin]]
 name = "main"
 path = "src/main.rs"
-
-# To properly set up the rt library for linking with LLVM
-[profile.dev]
-panic = "abort"
-lto = true
-
-[profile.release]
-panic = "abort"
-lto = true

bril-rs/brillvm/Makefile

@@ -19,7 +19,7 @@ clean:
 
 .PHONY: rt
 rt:
-	cd runtime && cargo rustc --release -- --emit=llvm-bc && mv ../target/release/deps/runtime-*.bc ../rt.bc
+	cd runtime && cargo rustc --release -- --emit=llvm-bc && mv target/release/deps/runtime-*.bc ../rt.bc
 
 example:
 # bril2json < ../../benchmarks/mem/sieve.bril | cargo run -- -i 100

bril-rs/brillvm/runtime/Cargo.toml

@@ -6,4 +6,13 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-libc-print = "0.1"
+libc-print = "0.1"
+
+# To properly set up the rt library for linking with LLVM
+[profile.dev]
+panic = "abort"
+lto = true
+
+[profile.release]
+panic = "abort"
+lto = true

bril-rs/brillvm/src/llvm.rs

@@ -1048,9 +1048,9 @@ fn build_instruction<'a, 'b>(
             // If this bril code follows LLVM's phi node restrictions, then
             // there should be no observable sideeffects
             let current_block = builder.get_insert_block().unwrap();
-            current_block
-                .get_first_instruction()
-                .map(|instruction| builder.position_before(&instruction));
+            if let Some(instruction) = current_block.get_first_instruction() {
+                builder.position_before(&instruction);
+            }
 
             let phi = builder
                 .build_phi(context.ptr_type(AddressSpace::default()), &name)