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cb808c1696
* Closes #2560 * Adds a transformation of JuvixReg into SSA form. * Adds an "output variable" field to branching instructions (`Case`, `Branch`) which indicates the output variable to which the result is assigned in both branches. The output variable corresponds to top of stack in JuvixAsm after executing the branches. In the SSA transformation, differently renamed output variables are unified by inserting assignment instructions at the end of branches. * Adds tests for the SSA transformation. * Depends on #2641.
29 lines
503 B
Plaintext
29 lines
503 B
Plaintext
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function sum(integer) : integer;
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function main() : *;
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function sum(integer) : integer {
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tmp[0] = arg[0];
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tmp[1] = 0;
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tmp[0] = eq tmp[1] tmp[0];
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br tmp[0], out: tmp[0] {
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true: {
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tmp[0] = 0;
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};
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false: {
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tmp[0] = 1;
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tmp[1] = arg[0];
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tmp[0] = sub tmp[1] tmp[0];
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tmp[0] = call sum (tmp[0]), live: (arg[0]);
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tmp[1] = arg[0];
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tmp[0] = add tmp[1] tmp[0];
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};
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};
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ret tmp[0];
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}
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function main() : * {
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tmp[0] = 1000;
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tcall sum (tmp[0]);
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}
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