[wasm] Bump to Emsdk 5.0.6 / LLVM 23 (linux-x64) by pavelsavara · Pull Request #127771 · dotnet/runtime

pavelsavara · 2026-05-04T19:56:48Z

Contributes to #113786

Summary

Bumps dotnet/runtime to consume Emsdk 5.0.6 + LLVM 23 + Node 22.16.0 + ICU transports (linux-x64 packages only for now).

Branch contents

https://github.com/pavelsavara/runtime/commits/dotnet/bump-llvm23-emsdk506/

Commit 1: Bump LLVM 23 + Emsdk 5.0.6 + Node 22.16.0 + ICU transports

eng/Version.Details.xml + eng/Version.Details.props: ICU, LLVM, Node package versions -> 23.1.0 / 11.0.0-alpha.1.26253.2
eng/Versions.props: EmsdkVersion=5.0.6, EmsdkPackageVersion=11.0.0-preview.4.26253.2
src/mono/browser/emscripten-version.txt: 3.1.56 -> 5.0.6
src/mono/CMakeLists.txt: LLVM 23 lib lists + version check 2300
src/mono/mono/mini/mini-llvm.c: deprecation pragma covering whole file
src/mono/mono/mini/mini-llvm-cpp.cpp: getOrInsertDeclaration guard (#if LLVM_API_VERSION >= 2000)

Commit 2: Eliminate deprecated LLVMGetGlobalContext/LLVMVoidType usage

Derive context from module/function/instruction objects instead of global context
mono_llvm_create_constant_data_array and mono_llvm_get_ptr_type take LLVMContextRef parameter
Fixes -Wdeprecated-declarations warnings with LLVM 23

Commit 3: fix sample

Validation

Smoke build: ./build.sh mono -os browser -arch wasm -c Release compiles and links successfully
10 deprecation warnings remain (non-fatal) in mini-llvm.c — covered by pragma
libSystem.Native.a missing in link step — requires libs subset, not a toolchain issue

…x-x64) - LLVM: 19.1.0-alpha.1.26173.1 → 23.1.0-alpha.1.26253.2 (linux-x64) - Node: 11.0.0-alpha.1.26173.2 → 11.0.0-alpha.1.26253.2 (linux-x64) - ICU: 11.0.0-alpha.1.26181.1 → 11.0.0-alpha.1.26253.2 - emscripten-version.txt: 3.1.56 → 5.0.6 - src/mono/CMakeLists.txt: LLVM 23 lib lists + version check 2300 - src/mono/mono/mini/mini-llvm.c: deprecation pragma for LLVM 23 - src/mono/mono/mini/mini-llvm-cpp.cpp: getOrInsertDeclaration guard - NuGet.config: local package sources for smoke build

…ge in mini-llvm-cpp.cpp Replace deprecated LLVM C API calls that use the global context with context derived from available objects (module, function, instruction): - mono_llvm_create_constant_data_array: takes LLVMContextRef parameter - mono_llvm_get_ptr_type: takes LLVMContextRef parameter - mono_llvm_add_param_attr_with_type: use func->getContext() - mono_llvm_add_param_byval_attr: use func->getContext() - mono_llvm_add_instr_attr_with_type: use CallBase->getContext() - mono_llvm_add_instr_byval_attr: use CallBase->getContext() - mono_llvm_di_create_location: use MDNode->getContext() - mono_llvm_get_or_insert_gc_safepoint_poll: use Module->getContext() - mono_llvm_register_intrinsic: use Module->getContext() - mono_llvm_register_overloaded_intrinsic: use Module->getContext() These APIs were deprecated in LLVM 20 and produce -Wdeprecated-declarations warnings when building with LLVM 23.

dotnet-policy-service · 2026-05-04T19:58:11Z

Tagging subscribers to this area: @steveisok, @vitek-karas
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Pull request overview

This PR updates the Mono/WASM toolchain dependencies to LLVM 23 and Emscripten 5.0.6, and adjusts Mono’s LLVM interop layer and build plumbing accordingly.

Changes:

Bump LLVM API expectation to 23.0 (LLVM_API_VERSION 2300) and refresh the CMake link library lists.
Update Mono LLVM helper wrappers/callers to pass an explicit LLVMContextRef instead of relying on LLVMGetGlobalContext().
Bump Emsdk/Emscripten versions and related transport dependencies; update the local tool manifest.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
`src/mono/mono/mini/mini-llvm.c`	Adds deprecated-warning suppression and updates constant-data-array callers + ptr type init for new signatures.
`src/mono/mono/mini/mini-llvm-cpp.h`	Updates LLVM helper function signatures to accept `LLVMContextRef`.
`src/mono/mono/mini/mini-llvm-cpp.cpp`	Implements context-aware helpers and updates several APIs for newer LLVM; adds LLVM>=2000 intrinsic path.
`src/mono/CMakeLists.txt`	Updates expected LLVM API version and refreshes LLVM library link lists for LLVM 23.
`src/mono/browser/emscripten-version.txt`	Updates pinned Emscripten version to 5.0.6.
`NuGet.config`	Adds several local package sources (currently absolute user paths).
`eng/Versions.props`	Updates Emsdk package/version properties and Node package variable.
`eng/Version.Details.xml`	Updates dependency versions/SHAs for ICU, LLVM, and Wasm Node transport packages.
`eng/Version.Details.props`	Updates the corresponding dependency version properties.
`.config/dotnet-tools.json`	Adds `dotnet-serve` and adds `rollForward: false` entries to tools.

+    <add key="local-llvm" value="/home/pavelsavara/dev/llvm-project/artifacts/packages/Release/Shipping" />
+    <add key="local-llvm-nonshipping" value="/home/pavelsavara/dev/llvm-project/artifacts/packages/Release/NonShipping" />
+    <add key="local-icu" value="/home/pavelsavara/dev/icu/artifacts/packages/Release/NonShipping" />
+    <add key="local-node" value="/home/pavelsavara/dev/node/artifacts/packages/Release/NonShipping" />
+    <add key="local-emsdk" value="/home/pavelsavara/dev/emsdk/artifacts/packages/Release/Shipping" />


+	#if LLVM_API_VERSION >= 2000
+		Function *f = Intrinsic::getOrInsertDeclaration (unwrap (module), intrins_id);
+#else
 		Function *f = Intrinsic::getDeclaration (unwrap (module), intrins_id);
+#endif
 		if (!f) {
 			outs () << id << "\n";
 			g_assert_not_reached ();
 		}
-		auto type = Intrinsic::getType (*unwrap(LLVMGetGlobalContext ()), intrins_id);
+		auto type = Intrinsic::getType (unwrap (module)->getContext (), intrins_id);
 		*out_type = wrap (type);
 		return wrap (f);
 	} else {


+#if LLVM_API_VERSION >= 2000
+	auto f = Intrinsic::getOrInsertDeclaration (unwrap (module), intrins_id, { arr, (size_t)ntypes });
+#else
 	auto f = Intrinsic::getDeclaration (unwrap (module), intrins_id, { arr, (size_t)ntypes });
-	auto type = Intrinsic::getType (*unwrap(LLVMGetGlobalContext ()), intrins_id, { arr, (size_t)ntypes });
+#endif
+	auto type = Intrinsic::getType (unwrap (module)->getContext (), intrins_id, { arr, (size_t)ntypes });
 	*out_type = wrap (type);
 	return wrap (f);
 }


+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+


    "coverlet.console": {
      "version": "6.0.4",
      "commands": [
        "coverlet"
-      ]
+      ],
+      "rollForward": false
    },


+    "dotnet-serve": {
+      "version": "1.10.194",
+      "commands": [
+        "dotnet-serve"
+      ],
+      "rollForward": false
    }


pavelsavara added 3 commits May 4, 2026 20:35

fix sample

02ec4b0

pavelsavara added this to the 11.0.0 milestone May 4, 2026

pavelsavara self-assigned this May 4, 2026

Copilot AI review requested due to automatic review settings May 4, 2026 19:56

pavelsavara added arch-wasm WebAssembly architecture os-browser Browser variant of arch-wasm labels May 4, 2026

Copilot started reviewing on behalf of pavelsavara May 4, 2026 19:57 View session

github-actions Bot added the area-Codegen-LLVM-mono label May 4, 2026

pavelsavara mentioned this pull request May 4, 2026

Upgrade Emscripten to 5.0.6 #113786

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Copilot AI reviewed May 4, 2026

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pavelsavara changed the title ~~Dotnet/bump llvm23 emsdk506~~ [wasm] Bump to Emsdk 5.0.6 / LLVM 23 (linux-x64) May 4, 2026

pavelsavara requested a review from akoeplinger May 4, 2026 20:21

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[wasm] Bump to Emsdk 5.0.6 / LLVM 23 (linux-x64)#127771

[wasm] Bump to Emsdk 5.0.6 / LLVM 23 (linux-x64)#127771
pavelsavara wants to merge 3 commits intodotnet:mainfrom
pavelsavara:dotnet/bump-llvm23-emsdk506

pavelsavara commented May 4, 2026 •

edited

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		#pragma GCC diagnostic push
		#pragma GCC diagnostic ignored "-Wdeprecated-declarations"

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Summary

Branch contents

Commit 1: Bump LLVM 23 + Emsdk 5.0.6 + Node 22.16.0 + ICU transports

Commit 2: Eliminate deprecated LLVMGetGlobalContext/LLVMVoidType usage

Commit 3: fix sample

Validation

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pavelsavara commented May 4, 2026 •

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