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winch: Add support for br_table #6951

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merged 4 commits into from
Sep 2, 2023
Merged

winch: Add support for br_table #6951

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ae4c431
winch: Add support for `br_table`
saulecabrera Aug 31, 2023
406120b
chore: Rust fmt
saulecabrera Sep 1, 2023
a60a3d5
fuzzing: Add `BrTable` to list of support instructions
saulecabrera Sep 1, 2023
e865967
docs: Improve documentation for `unconditional_jump`
saulecabrera Sep 1, 2023
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1 change: 1 addition & 0 deletions fuzz/fuzz_targets/differential.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -366,6 +366,7 @@ fn winch_supports_module(module: &[u8]) -> bool {
| Loop { .. }
| Br { .. }
| BrIf { .. }
| BrTable { .. }
| Unreachable { .. }
| Return { .. }
| F32Const { .. }
Expand Down
33 changes: 33 additions & 0 deletions tests/misc_testsuite/winch/block.wast
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Expand Up @@ -23,6 +23,34 @@
)
)

(func (export "as-br_table-first") (result i32)
(block (result i32) (block (result i32) (i32.const 1)) (i32.const 2) (br_table 0 0))
)
(func (export "as-br_table-last") (result i32)
(block (result i32) (i32.const 2) (block (result i32) (i32.const 1)) (br_table 0 0))
)

(func (export "break-bare") (result i32)
(block (br 0) (unreachable))
(block (br_if 0 (i32.const 1)) (unreachable))
(block (br_table 0 (i32.const 0)) (unreachable))
(block (br_table 0 0 0 (i32.const 1)) (unreachable))
(i32.const 19)
)

(func (export "break-repeated") (result i32)
(block (result i32)
(br 0 (i32.const 18))
(br 0 (i32.const 19))
(drop (br_if 0 (i32.const 20) (i32.const 0)))
(drop (br_if 0 (i32.const 20) (i32.const 1)))
(br 0 (i32.const 21))
(br_table 0 (i32.const 22) (i32.const 4))
(br_table 0 0 0 (i32.const 23) (i32.const 1))
(i32.const 21)
)
)

(func (export "deep") (result i32)
(block (result i32) (block (result i32)
(block (result i32) (block (result i32)
Expand Down Expand Up @@ -163,3 +191,8 @@
(assert_return (invoke "as-test-operand") (i32.const 0))
(assert_return (invoke "break-inner") (i32.const 0xf))
(assert_return (invoke "effects") (i32.const 1))

(assert_return (invoke "as-br_table-first") (i32.const 1))
(assert_return (invoke "as-br_table-last") (i32.const 2))
(assert_return (invoke "break-bare") (i32.const 19))
(assert_return (invoke "break-repeated") (i32.const 18))
47 changes: 47 additions & 0 deletions tests/misc_testsuite/winch/br.wast
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Expand Up @@ -174,6 +174,47 @@
)
)
)

(func (export "as-br_table-index")
(block (br_table 0 0 0 (br 0)))
)
(func (export "as-br_table-value") (result i32)
(block (result i32)
(br_table 0 0 0 (br 0 (i32.const 10)) (i32.const 1)) (i32.const 7)
)
)
(func (export "as-br_table-value-index") (result i32)
(block (result i32)
(br_table 0 0 (i32.const 6) (br 0 (i32.const 11))) (i32.const 7)
)
)

(func (export "nested-br_table-value") (result i32)
(i32.add
(i32.const 1)
(block (result i32)
(drop (i32.const 2))
(drop
(block (result i32)
(drop (i32.const 4))
(br_table 0 (br 1 (i32.const 8)) (i32.const 1))
)
)
(i32.const 16)
)
)
)

(func (export "nested-br_table-value-index") (result i32)
(i32.add
(i32.const 1)
(block (result i32)
(drop (i32.const 2))
(br_table 0 (i32.const 4) (br 0 (i32.const 8)))
(i32.const 16)
)
)
)
)

(assert_return (invoke "type-i32-value") (i32.const 1))
Expand Down Expand Up @@ -213,3 +254,9 @@
(assert_return (invoke "nested-br-value") (i32.const 9))
(assert_return (invoke "nested-br_if-value") (i32.const 9))
(assert_return (invoke "nested-br_if-value-cond") (i32.const 9))

(assert_return (invoke "as-br_table-index"))
(assert_return (invoke "as-br_table-value") (i32.const 10))
(assert_return (invoke "as-br_table-value-index") (i32.const 11))
(assert_return (invoke "nested-br_table-value") (i32.const 9))
(assert_return (invoke "nested-br_table-value-index") (i32.const 9))
55 changes: 55 additions & 0 deletions tests/misc_testsuite/winch/br_if.wast
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Original file line number Diff line number Diff line change
Expand Up @@ -203,6 +203,52 @@
)
)
)

(func (export "as-br_table-index")
(block (br_table 0 0 0 (br_if 0 (i32.const 1) (i32.const 2))))
)
(func (export "as-br_table-value") (result i32)
(block (result i32)
(br_table 0 0 0 (br_if 0 (i32.const 1) (i32.const 2)) (i32.const 3)) (i32.const 4)
)
)
(func (export "as-br_table-value-index") (result i32)
(block (result i32)
(br_table 0 0 (i32.const 2) (br_if 0 (i32.const 1) (i32.const 3))) (i32.const 4)
)
)

(func (export "nested-br_table-value") (param i32) (result i32)
(i32.add
(i32.const 1)
(block (result i32)
(drop (i32.const 2))
(br_table 0
(block (result i32)
(drop (br_if 1 (i32.const 8) (local.get 0))) (i32.const 4)
)
(i32.const 1)
)
(i32.const 16)
)
)
)

(func (export "nested-br_table-value-index") (param i32) (result i32)
(i32.add
(i32.const 1)
(block (result i32)
(drop (i32.const 2))
(br_table 0
(i32.const 4)
(block (result i32)
(drop (br_if 1 (i32.const 8) (local.get 0))) (i32.const 1)
)
)
(i32.const 16)
)
)
)
)


Expand Down Expand Up @@ -260,3 +306,12 @@
(assert_return (invoke "nested-br_if-value" (i32.const 1)) (i32.const 9))
(assert_return (invoke "nested-br_if-value-cond" (i32.const 0)) (i32.const 5))
(assert_return (invoke "nested-br_if-value-cond" (i32.const 1)) (i32.const 9))

(assert_return (invoke "as-br_table-index"))
(assert_return (invoke "as-br_table-value") (i32.const 1))
(assert_return (invoke "as-br_table-value-index") (i32.const 1))

(assert_return (invoke "nested-br_table-value" (i32.const 0)) (i32.const 5))
(assert_return (invoke "nested-br_table-value" (i32.const 1)) (i32.const 9))
(assert_return (invoke "nested-br_table-value-index" (i32.const 0)) (i32.const 5))
(assert_return (invoke "nested-br_table-value-index" (i32.const 1)) (i32.const 9))
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