996cf5dc67
Resolves #99221 Key points: For SPIRV backend, it decompose into a `dot` followed a `add`. - [x] Implement dot2add clang builtin, - [x] Link dot2add clang builtin with hlsl_intrinsics.h - [x] Add sema checks for dot2add to CheckHLSLBuiltinFunctionCall in SemaHLSL.cpp - [x] Add codegen for dot2add to EmitHLSLBuiltinExpr in CGBuiltin.cpp - [x] Add codegen tests to clang/test/CodeGenHLSL/builtins/dot2add.hlsl - [x] Add sema tests to clang/test/SemaHLSL/BuiltIns/dot2add-errors.hlsl - [x] Create the int_dx_dot2add intrinsic in IntrinsicsDirectX.td - [x] Create the DXILOpMapping of int_dx_dot2add to 162 in DXIL.td - [x] Create the dot2add.ll and dot2add_errors.ll tests in llvm/test/CodeGen/DirectX/
9 lines
388 B
LLVM
9 lines
388 B
LLVM
; RUN: opt -S -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-compute %s | FileCheck %s
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define noundef float @dot2add_simple(<2 x half> noundef %a, <2 x half> noundef %b, float %c) {
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entry:
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; CHECK: call float @dx.op.dot2AddHalf(i32 162, float %c, half %0, half %1, half %2, half %3)
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%ret = call float @llvm.dx.dot2add(<2 x half> %a, <2 x half> %b, float %c)
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ret float %ret
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}
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