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author | Tobias Hunger <tobias.hunger@qt.io> | 2019-04-16 16:32:08 +0200 |
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committer | Tobias Hunger <tobias.hunger@qt.io> | 2019-04-16 16:32:08 +0200 |
commit | 6630937e63ae5797487b86743a7733c8ae5cc42c (patch) | |
tree | 3d53dacf6430f9099e1fb20835881205de674961 /src/3rdparty/angle/src/compiler/translator/AddDefaultReturnStatements.cpp | |
parent | 37ed6dae00640f9cc980ffda05347c12a7eb5d7e (diff) | |
parent | c7af193d2e49e9f10b86262e63d8d13abf72b5cf (diff) |
Merge commit 'dev' into 'wip/cmake-merge'
Change-Id: I176c40d031be26a1dd1cf08843e448a660598783
Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/AddDefaultReturnStatements.cpp')
-rw-r--r-- | src/3rdparty/angle/src/compiler/translator/AddDefaultReturnStatements.cpp | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/AddDefaultReturnStatements.cpp b/src/3rdparty/angle/src/compiler/translator/AddDefaultReturnStatements.cpp new file mode 100644 index 0000000000..4dfe60c0bc --- /dev/null +++ b/src/3rdparty/angle/src/compiler/translator/AddDefaultReturnStatements.cpp @@ -0,0 +1,58 @@ +// +// 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. +// +// AddDefaultReturnStatements.cpp: Add default return statements to functions that do not end in a +// return. +// + +#include "compiler/translator/AddDefaultReturnStatements.h" + +#include "compiler/translator/IntermNode.h" +#include "compiler/translator/IntermNode_util.h" +#include "compiler/translator/util.h" + +namespace sh +{ + +namespace +{ + +bool NeedsReturnStatement(TIntermFunctionDefinition *node, TType *returnType) +{ + *returnType = node->getFunctionPrototype()->getType(); + if (returnType->getBasicType() == EbtVoid) + { + return false; + } + + TIntermBlock *bodyNode = node->getBody(); + TIntermBranch *returnNode = bodyNode->getSequence()->back()->getAsBranchNode(); + if (returnNode != nullptr && returnNode->getFlowOp() == EOpReturn) + { + return false; + } + + return true; +} + +} // anonymous namespace + +void AddDefaultReturnStatements(TIntermBlock *root) +{ + TType returnType; + for (TIntermNode *node : *root->getSequence()) + { + TIntermFunctionDefinition *definition = node->getAsFunctionDefinition(); + if (definition != nullptr && NeedsReturnStatement(definition, &returnType)) + { + TIntermBranch *branch = new TIntermBranch(EOpReturn, CreateZeroNode(returnType)); + + TIntermBlock *bodyNode = definition->getBody(); + bodyNode->getSequence()->push_back(branch); + } + } +} + +} // namespace sh |