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Windows - VS2015 Compile error - 'conversion from 'double' to 'float' requires a narrowing conversion' #1329

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merged 1 commit into from
Jun 24, 2018

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@rajh619 rajh619 commented Jun 24, 2018

Compiling of TVM fails in Windows 10 - VS 2015 environment .
Reason : conversion error from float to double . This seems to be a compiler bug and we have to explicitly add "f" suffix to float values during uniform intialization .
ref: https://stackoverflow.com/a/47913325/3814804

Build Error Log :


5>C:\TVM\v0_3_a1\tvm\nnvm\include\nnvm/top/nn.h(350): warning C4305: 'argument': truncation from 'double' to 'const float' (compiling source file C:\TVM\v0_3_a1\tvm\nnvm\src\top\vision\yolo2\reorg.cc)
5>C:\TVM\v0_3_a1\tvm\nnvm\include\nnvm/top/nn.h(352): error C2398: Element '1': conversion from 'double' to 'float' requires a narrowing conversion (compiling source file C:\TVM\v0_3_a1\tvm\nnvm\src\top\vision\yolo2\reorg.cc)
5>C:\TVM\v0_3_a1\tvm\nnvm\include\nnvm/top/nn.h(352): error C2398: Element '2': conversion from 'double' to 'float' requires a narrowing conversion (compiling source file C:\TVM\v0_3_a1\tvm\nnvm\src\top\vision\yolo2\reorg.cc)
5>C:\TVM\v0_3_a1\tvm\nnvm\include\nnvm/top/nn.h(352): error C2398: Element '3': conversion from 'double' to 'float' requires a narrowing conversion (compiling source file C:\TVM\v0_3_a1\tvm\nnvm\src\top\vision\yolo2\reorg.cc)
5>C:\TVM\v0_3_a1\tvm\nnvm\include\nnvm/top/nn.h(352): error C2398: Element '4': conversion from 'double' to 'float' requires a narrowing conversion (compiling source file C:\TVM\v0_3_a1\tvm\nnvm\src\top\vision\yolo2\reorg.cc)
5>C:\TVM\v0_3_a1\tvm\nnvm\include\nnvm/top/nn.h(352): warning C4305: 'initializing': truncation from 'double' to 'float' (compiling source file C:\TVM\v0_3_a1\tvm\nnvm\src\top\vision\yolo2\reorg.cc)
7>------ Build started: Project: ALL_BUILD, Configuration: Release x64 ------
7>  Building Custom Rule C:/TVM/v0_3_a1/tvm/CMakeLists.txt
7>  CMake does not need to re-run because C:/TVM/v0_3_a1/tvm/build/CMakeFiles/generate.stamp is up-to-date.
8>------ Skipped Build: Project: INSTALL, Configuration: Release x64 ------
8>Project not selected to build for this solution configuration 
========== Build: 5 succeeded, 1 failed, 0 up-to-date, 2 skipped ==========

Note: i have added the suffix'f' only on L352 as it was breaking the Build.
Awaiting for feedback .
Thanks

…equires a narrowing conversion'

Compiling of TVM fails in Windows 10 - VS 2015 environment .
Reason : conversion error from float to double .  This seems to be a compiler bug and we have to explicitly add "f" suffix to float values during uniform intialization .
ref: https://stackoverflow.com/a/47913325/3814804
@tqchen tqchen merged commit f3dbee8 into apache:master Jun 24, 2018
tqchen pushed a commit to tqchen/tvm that referenced this pull request Jul 6, 2018
mnuyens pushed a commit to mnuyens/tvm that referenced this pull request Jul 10, 2018
sergei-mironov pushed a commit to sergei-mironov/tvm that referenced this pull request Aug 8, 2018
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