derek.holloway
7502bf64a4
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44 lines
1.8 KiB
MLIR
44 lines
1.8 KiB
MLIR
// RUN: mlir-opt %s -test-math-polynomial-approximation="enable-avx2" \
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// RUN: -convert-vector-to-scf \
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// RUN: -convert-scf-to-cf \
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// RUN: -convert-arith-to-llvm \
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// RUN: -convert-cf-to-llvm \
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// RUN: -convert-vector-to-llvm="enable-x86" \
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// RUN: -convert-math-to-llvm \
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// RUN: -convert-func-to-llvm \
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// RUN: -reconcile-unrealized-casts \
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// RUN: | mlir-runner \
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// RUN: -e main -entry-point-result=void -O0 \
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// RUN: -shared-libs=%mlir_c_runner_utils \
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// RUN: -shared-libs=%mlir_runner_utils \
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// RUN: | FileCheck %s
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// -------------------------------------------------------------------------- //
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// rsqrt.
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// -------------------------------------------------------------------------- //
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func.func @rsqrt() {
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// Sanity-check that the scalar rsqrt still works OK.
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// CHECK: inf
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%0 = arith.constant 0.0 : f32
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%rsqrt_0 = math.rsqrt %0 : f32
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vector.print %rsqrt_0 : f32
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// CHECK: 0.707107
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%two = arith.constant 2.0: f32
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%rsqrt_two = math.rsqrt %two : f32
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vector.print %rsqrt_two : f32
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// Check that the vectorized approximation is reasonably accurate.
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// CHECK: 0.707107, 0.707107, 0.707107, 0.707107, 0.707107, 0.707107, 0.707107, 0.707107
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%vec8 = arith.constant dense<2.0> : vector<8xf32>
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%rsqrt_vec8 = math.rsqrt %vec8 : vector<8xf32>
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vector.print %rsqrt_vec8 : vector<8xf32>
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return
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}
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func.func @main() {
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call @rsqrt(): () -> ()
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return
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}
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