From ad1e6fbd58fcf94ff7197cd617ba2d94809bee35 Mon Sep 17 00:00:00 2001
From: Shogo Takata <peshogo@gmail.com>
Date: Tue, 19 May 2026 07:39:01 +0900
Subject: [PATCH] circt: 1.140.0 -> 1.147.0

Updates circt to 1.147.0.
---
 pkgs/by-name/ci/circt/circt-llvm.nix |  4 +++-
 pkgs/by-name/ci/circt/package.nix    | 17 +++++++++++------
 2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/pkgs/by-name/ci/circt/circt-llvm.nix b/pkgs/by-name/ci/circt/circt-llvm.nix
index 706171fcd5de..48b2a38c0262 100644
--- a/pkgs/by-name/ci/circt/circt-llvm.nix
+++ b/pkgs/by-name/ci/circt/circt-llvm.nix
@@ -14,6 +14,8 @@ stdenv.mkDerivation {
 
   requiredSystemFeatures = [ "big-parallel" ];
 
+  __structuredAttrs = true;
+
   nativeBuildInputs = [
     cmake
     ninja
@@ -33,7 +35,7 @@ stdenv.mkDerivation {
     # Based on utils/build-llvm.sh
     (lib.cmakeBool "BUILD_SHARED_LIBS" true)
     (lib.cmakeBool "LLVM_BUILD_EXAMPLES" false)
-    (lib.cmakeBool "LLVM_ENABLE_ASSERTIONS" true)
+    (lib.cmakeBool "LLVM_ENABLE_ASSERTIONS" false) # Conflicts with nixpkgs hardening options
     (lib.cmakeBool "LLVM_ENABLE_BINDINGS" false)
     (lib.cmakeBool "LLVM_ENABLE_OCAMLDOC" false)
     (lib.cmakeFeature "LLVM_ENABLE_PROJECTS" "mlir")
diff --git a/pkgs/by-name/ci/circt/package.nix b/pkgs/by-name/ci/circt/package.nix
index 925a98b3fbf8..fdfc8496d016 100644
--- a/pkgs/by-name/ci/circt/package.nix
+++ b/pkgs/by-name/ci/circt/package.nix
@@ -9,7 +9,7 @@
   ninja,
   lit,
   z3,
-  sv-lang_9, # update sv-lang version here according to upstream requirements
+  sv-lang_10, # update sv-lang version here according to upstream requirements
   fmt,
   boost,
   mimalloc,
@@ -27,17 +27,19 @@ let
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "circt";
-  version = "1.140.0";
+  version = "1.147.0";
   src = fetchFromGitHub {
     owner = "llvm";
     repo = "circt";
     tag = "firtool-${finalAttrs.version}";
-    hash = "sha256-oitdYNGsEyraQqouOt9srfbDgVGFOAGZMdcf/rjnx5Q=";
+    hash = "sha256-rtnvahI7EzUJXE80X3XPWjjDD/6f9BPmZ7S97Lstuhw=";
     fetchSubmodules = true;
   };
 
   requiredSystemFeatures = [ "big-parallel" ];
 
+  __structuredAttrs = true;
+
   nativeBuildInputs = [
     cmake
     ninja
@@ -53,7 +55,7 @@ stdenv.mkDerivation (finalAttrs: {
     boost
     fmt
     mimalloc
-    sv-lang_9
+    sv-lang_10
   ];
 
   cmakeFlags = [
@@ -110,18 +112,21 @@ stdenv.mkDerivation (finalAttrs: {
   postPatch = ''
     patchShebangs tools/circt-test
 
+    # Replace slang references to match the package in nixpkgs
     substituteInPlace \
       lib/Tools/circt-verilog-lsp-server/VerilogServerImpl/CMakeLists.txt \
       lib/Conversion/ImportVerilog/CMakeLists.txt \
+      unittests/Conversion/ImportVerilog/CMakeLists.txt \
       --replace-fail "slang_slang" "slang::slang"
-  '';
 
-  preConfigure = ''
+    # Patch shebang in test mlir files
     find ./test -name '*.mlir' -exec sed -i 's|/usr/bin/env|${coreutils}/bin/env|g' {} \;
+
     # circt uses git to check its version, but when cloned on nix it can't access git.
     # So this hard codes the version.
     substituteInPlace cmake/modules/GenVersionFile.cmake \
       --replace-fail "unknown git version" "${finalAttrs.src.rev}"
+
     # Increase timeout on tests because some were failing on hydra.
     # Using `replace-warn` so it doesn't break when upstream changes the timeout.
     substituteInPlace integration_test/CMakeLists.txt \