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Move Variant::evaluate() switch to computed goto

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In an effort to make GDScript a little faster replace the double
switch() with a computed goto on compilers that set __GNUC__. For
compilers that don't support computed goto it will fall back to regular
switch/case statements.

In addition disable using boolean values in a mathematical context. Now
boolean values can only be compared with other booleans. Booleans will
also no longer be coerced to integers.

This PR replaces #11308 and fixes #11291
This commit is contained in:
Hein-Pieter van Braam
2017-09-17 02:32:05 +02:00
parent 7655587efb
commit 137f8a58a8
8 changed files with 1001 additions and 722 deletions
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4
modules/gdscript/gd_compiler.cpp
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@@ -131,7 +131,7 @@ int GDCompiler::_parse_assign_right_expression(CodeGen &codegen, const GDParser:
switch (p_expression->op) {
case GDParser::OperatorNode::OP_ASSIGN_ADD: var_op = Variant::OP_ADD; break;
case GDParser::OperatorNode::OP_ASSIGN_SUB: var_op = Variant::OP_SUBSTRACT; break;
case GDParser::OperatorNode::OP_ASSIGN_SUB: var_op = Variant::OP_SUBTRACT; break;
case GDParser::OperatorNode::OP_ASSIGN_MUL: var_op = Variant::OP_MULTIPLY; break;
case GDParser::OperatorNode::OP_ASSIGN_DIV: var_op = Variant::OP_DIVIDE; break;
case GDParser::OperatorNode::OP_ASSIGN_MOD: var_op = Variant::OP_MODULE; break;
@@ -759,7 +759,7 @@ int GDCompiler::_parse_expression(CodeGen &codegen, const GDParser::Node *p_expr
if (!_create_binary_operator(codegen, on, Variant::OP_ADD, p_stack_level)) return -1;
} break;
case GDParser::OperatorNode::OP_SUB: {
if (!_create_binary_operator(codegen, on, Variant::OP_SUBSTRACT, p_stack_level)) return -1;
if (!_create_binary_operator(codegen, on, Variant::OP_SUBTRACT, p_stack_level)) return -1;
} break;
case GDParser::OperatorNode::OP_MUL: {
if (!_create_binary_operator(codegen, on, Variant::OP_MULTIPLY, p_stack_level)) return -1;