RewriteRepeatedAssignToSwizzled.h (1190B)
1 // 2 // Copyright 2018 The ANGLE Project Authors. All rights reserved. 3 // Use of this source code is governed by a BSD-style license that can be 4 // found in the LICENSE file. 5 // 6 // RewriteRepeatedAssignToSwizzled.h: Rewrite expressions that assign an assignment to a swizzled 7 // vector, like: 8 // v.x = z = expression; 9 // to: 10 // z = expression; 11 // v.x = z; 12 // 13 // Note that this doesn't handle some corner cases: expressions nested inside other expressions, 14 // inside loop headers, or inside if conditions. 15 16 #ifndef COMPILER_TRANSLATOR_TREEOPS_GL_REWRITEREPEATEDASSIGNTOSWIZZLED_H_ 17 #define COMPILER_TRANSLATOR_TREEOPS_GL_REWRITEREPEATEDASSIGNTOSWIZZLED_H_ 18 19 #include "common/angleutils.h" 20 21 namespace sh 22 { 23 24 class TCompiler; 25 class TIntermBlock; 26 27 #ifdef ANGLE_ENABLE_GLSL 28 [[nodiscard]] bool RewriteRepeatedAssignToSwizzled(TCompiler *compiler, TIntermBlock *root); 29 #else 30 [[nodiscard]] ANGLE_INLINE bool RewriteRepeatedAssignToSwizzled(TCompiler *compiler, 31 TIntermBlock *root) 32 { 33 UNREACHABLE(); 34 return false; 35 } 36 #endif 37 38 } // namespace sh 39 40 #endif // COMPILER_TRANSLATOR_TREEOPS_GL_REWRITEREPEATEDASSIGNTOSWIZZLED_H_