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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /gfx/angle/src/compiler/translator/ExpandIntegerPowExpressions.h | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/angle/src/compiler/translator/ExpandIntegerPowExpressions.h')
-rwxr-xr-x | gfx/angle/src/compiler/translator/ExpandIntegerPowExpressions.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gfx/angle/src/compiler/translator/ExpandIntegerPowExpressions.h b/gfx/angle/src/compiler/translator/ExpandIntegerPowExpressions.h new file mode 100755 index 000000000..8bc8c9664 --- /dev/null +++ b/gfx/angle/src/compiler/translator/ExpandIntegerPowExpressions.h @@ -0,0 +1,28 @@ +// +// Copyright (c) 2016 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// +// This mutating tree traversal works around a bug in the HLSL compiler optimizer with "pow" that +// manifests under the following conditions: +// +// - If pow() has a literal exponent value +// - ... and this value is integer or within 10e-6 of an integer +// - ... and it is in {-4, -3, -2, 2, 3, 4, 5, 6, 7, 8} +// +// The workaround is to replace the pow with a series of multiplies. +// See http://anglebug.com/851 + +#ifndef COMPILER_TRANSLATOR_EXPANDINTEGERPOWEXPRESSIONS_H_ +#define COMPILER_TRANSLATOR_EXPANDINTEGERPOWEXPRESSIONS_H_ + +class TIntermNode; + +namespace sh +{ + +void ExpandIntegerPowExpressions(TIntermNode *root, unsigned int *tempIndex); + +} // namespace sh + +#endif // COMPILER_TRANSLATOR_EXPANDINTEGERPOWEXPRESSIONS_H_ |