518b7a7e23
Parameters are duplicated when pushing an If block, so they're available to the Else block without an extra heap allocation. However, when truncating the stack after popping the If control frame, the stack size at entry doesn't account for the duplicated parameters. That is intentional: the Else block uses this value to know what's the stack size when it is entered, so there's nothing to change there. This patch makes the wasm translation truncates the value stack to the right size after an If block, by taking those duplicated parameters into account.
27 lines
438 B
Plaintext
27 lines
438 B
Plaintext
(module
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(func $main (type 0) (param i32 i32 i32) (result i32)
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i32.const 0
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i32.const 0
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i32.const 0
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i32.const 0
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i32.const 0
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if (param i32 i32 i32) (result i32) ;; label = @1
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br 0 (;@1;)
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else
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call $main
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end
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i32.const 0
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i32.const 0
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if (param i32 i32 i32) (result i32) ;; label = @1
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drop
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drop
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else
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drop
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drop
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end
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)
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(export "main" (func $main)))
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