Improve Math.BigMul on x64 by adding new internal `Multiply` hardware intrinsic to X86Base #115966

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Daniel-Svensson wants to merge 6 commits into dotnet:main from Daniel-Svensson:x86_multiply

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Improve Math.BigMul on x64 by adding new internal `Multiply` hardware intrinsic to X86Base #115966

Merge branch 'main' into x86_multiply

Azure Pipelines / runtime (Build linux-x86 checked CoreCLR) failed Jan 12, 2026 in 10m 47s

Build linux-x86 checked CoreCLR failed

2 errors / 1 warnings

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Check failure on line 2577 in Build log

azure-pipelines / runtime (Build linux-x86 checked CoreCLR)

Build log #L2577

Failed to build "CoreCLR component".

Check failure on line 116 in src/coreclr/runtime.proj

azure-pipelines / runtime (Build linux-x86 checked CoreCLR)

src/coreclr/runtime.proj#L116

src/coreclr/runtime.proj(116,5): error MSB3073: (NETCORE_ENGINEERING_TELEMETRY=Build) The command ""/__w/1/s/src/coreclr/build-runtime.sh" -x86 -checked -ci -cross -os linux -targetrid linux-x86 -cmakeargs "-DCLR_DOTNET_RID=linux-x86" -cmakeargs "-DCLR_DOTNET_HOST_PATH=/__w/1/s/.dotnet/dotnet" -cmakeargs "-DCDAC_BUILD_TOOL_BINARY_PATH=/__w/1/s/artifacts/bin/coreclr/linux.x86.Checked/cdac-build-tool/cdac-build-tool.dll" -component runtime -component jit -component iltools -component spmi -cmakeargs "-DCLR_CMAKE_RUNTIME_CORECLR=1" -cmakeargs "-DCMAKE_PRODUCT_VERSION=11.0.0" -cmakeargs "-DCMAKE_CONTINUOUS_INTEGRATION_BUILD=true" -cmakeargs "-DCMAKE_NET_CORE_APP_CURRENT_VERSION=11.0" -cmakeargs "-DCMAKE_BUILD_LIBRARIES_CONFIGURATION=Checked" -cmakeargs "-DCMAKE_BUILD_RUNTIME_CONFIGURATION=Checked"" exited with code 2.

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