Added ispcrtSetTaskingCallbacks to the ISPCRT API, allowing the override of default implementations of ISPCLaunch, ISPCAlloc, and ISPCSync.-wrap-signed-int switches, which preserve(s) wrap-around behavior on signed integer overflow.-opt=disable-gathers and -opt=disable-scatters options, which disable generation of gathers and scatters instructions on platforms that support them (for performance experiments).When large model is used, it enables programs larger than 2Gb. -mcmodel switch, which accepts small and large values.It also enables generating LTO or LTO+PGO enabled builds of LLVM and ISPC. It can generate an archive with dependencies or consume a pre-built archive to build ISPC only. Introduced ISPC superbuild, which facilitates building ISPC with Xe dependencies (LLVM, L0, vc-intrinsics, SPIRV-Translator).Optimization pipeline was modified by introducing early LoopFullUnrollPass which matches ISPC unrolled loops with manually unrolled loops in many cases. ISPC now uses LLVM's new pass manager.added two new device names: mtl-m and mtl-p.added two new ISPC targets: xelpg-x16 and xelpg-x8.The default behavior (before version 1.21.0) can be preserved by using -wrap-signed-int, which maintains defined wraparound behavior for signed integers, though it may limit some compiler optimizations.Īdded support of Intel Meteor Lake Xe-LPG graphics: You can manage this behavior using the -wrap-signed-int compiler switch. This change may cause compatibility issues. Now, in case of signed integer overflow, ispc will assume undefined behavior similar to C and C++. Modified behavior for signed integer overflow.Not supported yet: specialization with implicit template arguments (requires template arguments type deduction) template noinline int goo( int argGooOne, float argGooTwo) Specialization with explicit template arguments template noinline int goo( int argGooOne, float argGooTwo) Primary template template noinline int goo(T argGooOne, C argGooTwo)
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