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Directly assign initializers to variables in variable declarations 

.. instead of first assigning to a temporary and then assigning the
temporary to the argument/local.

Change-Id: I15a6c2073b78c5cfc829c7edef07c6bf48be7886
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
This commit is contained in:
Erik Verbruggen 2017-01-24 11:45:47 +01:00
parent 68bd6fcc8a
commit 898f67ca3b
1 changed files with 10 additions and 3 deletions
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9
src/qml/compiler/qv4codegen.cpp
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@ -842,9 +842,16 @@ void Codegen::variableDeclaration(VariableDeclaration *ast)
Q_ASSERT(expr.code); Q_ASSERT(expr.code);
initializer = *expr; initializer = *expr;
IR::Expr *lhs = identifier(ast->name.toString(), ast->identifierToken.startLine,
ast->identifierToken.startColumn);
if (lhs->asArgLocal()) {
move(lhs, initializer);
} else {
int initialized = _block->newTemp(); int initialized = _block->newTemp();
move(_block->TEMP(initialized), initializer); move(_block->TEMP(initialized), initializer);
move(identifier(ast->name.toString(), ast->identifierToken.startLine, ast->identifierToken.startColumn), _block->TEMP(initialized)); move(lhs, _block->TEMP(initialized));
}
} }
void Codegen::variableDeclarationList(VariableDeclarationList *ast) void Codegen::variableDeclarationList(VariableDeclarationList *ast)