igc-1.0.3698

Fixed issues/improvements:

• IGC now links with LLVM10,
• Emulation of 64-bit subgroup arithmetic and clustered non-uniform functions for platforms not supporting 64-it type natively,
• Fixes to cl_khr_subgroup_shuffle_relative and cl_khr_subgroup_clustered_reduce,
• Skip prefixes when parsing build options,
• Indirect address access is not allowed when dst is accumulator,
• Fix for SubgroupLtMask,
• Using local fences for local atomics,
• Fix sub_group_shuffle_down for long and double,
• Fix local block read builtins,
• Other fixes and improvements.

Ubuntu 18.04 binary packages for LLVM10/Clang10 are included.

igc-1.0.3627

Fixed Issues / Improvements

• Fixed kernel args iterator that causes compile error.
• Following llvm style for print and dump function.
• Fix for derived constants optimization.
• Fix FNeg intrinsic-function for the vector type.
• Emulation of 64-bit subgroup arithmetic and clustered non-uniform functions for platforms not supporting 64-bit type natively.
• SWSB: Ignore sync's dependency.
• Update GED for compact encoding.
• Minor fixes and improvements.

Ubuntu 18.04 binary packages for LLVM9/Clang9 are included.

igc-1.0.3586

• Support for extended subgroup functions.
• Improve IGCConstProp pass to support constant folding in rounding-mode-specific GenISA intrinsics.
• Add sat and overflow operation support for add and sub.
• Fixes realted to cl_khr_fp16 and cl_khr_fp64 types.
• Introduce inline asm support for SPIRV reader.
• Handling of splitting of rare regions like r[a0.0]<2,0> correctly.
• Small CMake path change
• Refactor IEEE FP32 divide/sqrt macro to avoid hard-coded execution size.
• Fixing the implementations of FENCE_PRE_OP and FENCE_POST_OP. The OCL’s GPU memory model problem was originally identified and reported by Tyler Sorensen and Jake Kirkham from Princeton University.
• Add address register initialization on ICL platform.
• Implement scratch space allocation for CMC thread-private memory.
• Increase OCL inlining threshold to 4500 to resolve the performance regression reported.
• And other bug fixes.

Ubuntu 18.04 binary packages for LLVM9/Clang9 are included.

igc-1.0.3529

Changelog

• Add VF immediate support for divm/sqrtm/pow,
• Emit scalar atomic load,
• Fix vISA options printing in the .asm file,
• Set loop unroll threshold for high register pressure shaders via IGC flag,
• Control the register pressure threshold used to limit the loop unroll to smaller loops via IGC flag,
• Support struct type return values for caller/callee,
• Dumping basic-blocks type by name,
• Support for cl_khr_subgroup_extended_types,
• Fixed referencing null iterator when KernelArgs size is 0,
• Added an ocl internal option -cl-intel-vector-coalesing=<0-5> to control vector coalescing,
• Fix alignment for MemCpy instructions,
• Added SPIRV-Tools configuration.

Ubuntu 18.04 binary packages for LLVM9/Clang9 are included.

igc-1.0.3471

Fixed Issues / Improvements

• Fix for gtpin when stackcall is enabled. rera pass is off, free GRFs are not computed.
• Add gen11 and gen 12 debug SIPs.
• Adding new compile time macros.
• Add a legalization check on scalar byte to half conversion.
• Minor fixes and improvements.

Ubuntu 18.04 binary packages for LLVM9/Clang9 are included.

igc-1.0.3445

• Handle the splitting of Vx1
• Modify spill/fill intrinsics' offset units.
• Support for hardware native atomic subtract.
• Add interface with dualsubslice information.
• Adding a configuration flag for enforcing double precision floating point emulation on unsupported platforms as an experimental feature.
• Fix live-interval in debug info when trivial RA is run.
• Fixing regression caused by wrong rounding.
• Don't do integer mad if thre are more than 1 immediate sources.
• Avoid splitting an instruction with byte dst into even/odd when one of its sources has vertical stride 32.
• Cache debug source line information during assembly dump.
• Fix for subgroup function resolution.
• Add Induction Variable Elimination pass.
• Remove redundant goto instructions.

Ubuntu 18.04 binary packages for LLVM9/Clang9 are included.

igc-1.0.3390

Fixed Issues / Improvements

• Add support for execution mask computation in SIMD32 mode.
• Add vISA verifier checks for illegal execution size and masks.
• Add Induction Variable Elimination pass.
• Minor fixes and improvements.

Ubuntu 18.04 binary packages for LLVM9/Clang9 are included.

igc-1.0.3342

Fixed Issues / Improvements

• Compiler outputs per-function attributes for function pointer linking support.
• Multirate shading improvements and fixes.
• Adding the fix for bailing out the promote pass if loops identified in the phi path while tracing the source buffer from its use.
• Add spir-v path for local block IO.
• Override the loop unroll threshold if its set using flags.
• Constant propagate through Round instruction.
• Add -fasterRA and -noLocalSplit params if FastVISACompile is true .
• Improvements to split heuristic.
• and other smaller fixes.

Ubuntu 18.04 binary packages for LLVM9/Clang9 are included.

igc-1.0.3289

Fixed Issues / Improvements

• Further changes to code aimed to raise compatibility with upcoming LLVM10 upgrade.
• Refactor preload checks for spills.
• Fix SPIRV-Tools project build in multi-configuration cmake generator.
• Fix an issue with multiplation overhead for unrolling estimation.
• Add ocl compiler flag "-cl-intel-disable-a64WA" to disable A64 WA.
• Add option to disable instruction debug information.
• Remove EnableSCAWA flag as it is no longer needed.
• Fix ArgumentNumber in PATCH TOKENS for implicit image arguments.
• Implemented explicit variable split intrinsic. Feature is off by default.
• Implemented enabling registry keys flags using internal options.
• Fix related to ShaderOverride functionality

Ubuntu 18.04 binary packages for LLVM9/Clang9 are included.

igc-1.0.3151

Fixed Issues / Improvements

• Fix for the unrolling limit threshold for cases in which we get large count of integers operation inside of a loop
• Change the way the compiler reports line information for instructions generated by VISA
• Add compiler option to force private memory allocation in global memory
• Implementation of explicit variable split intrinsic
• Mix mode support for acc substitution
• Support for multiple SIMD compilation for Function Pointers
• Add support to emit per thread offsets for gtpin
• Make support for local block i/o available for Gen11+
• Fixes for Android compliation
• Enable dump functions only when available
• Minor fixes and improvements.

Ubuntu 18.04 binary packages for LLVM9/Clang9 are included.