da17ced11b
The `dx.dot2`, `dot3`, and `dot4` intrinsics exist purely to lower `dx.fdot`, and they map exactly to the DXIL ops of the same name. Using vectors for their arguments adds unnecessary complexity and causes us to have vector operations that are not trivial to lower post-scalarizer. Similarly, the `dx.dot2add` intrinsic is overly generic for something that only needs to lower to a single `dot2AddHalf` DXIL op. Update its signature to match the operation it lowers to. Fixes #134569.
13 lines
525 B
LLVM
13 lines
525 B
LLVM
; RUN: not opt -S -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-library %s 2>&1 | FileCheck %s
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; DXIL operation dot2 does not support double overload type
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; CHECK: in function dot_double2
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; CHECK-SAME: Cannot create Dot2 operation: Invalid overload type
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define noundef double @dot_double2(double noundef %a1, double noundef %a2,
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double noundef %b1, double noundef %b2) {
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entry:
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%dx.dot = call double @llvm.dx.dot2(double %a1, double %a2, double %b1, double %b2)
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ret double %dx.dot
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}
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