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fuzzgen: Always generate reachable blocks #5034

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merged 9 commits into from
Oct 17, 2022
Merged

fuzzgen: Always generate reachable blocks #5034

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dc99529
fuzzgen: Always reachable blocks
afonso360 Oct 8, 2022
c1014e8
fuzzgen: Rename BlockTerminator
afonso360 Oct 8, 2022
1035d05
fuzzgen: Rename `finalize_block`
afonso360 Oct 8, 2022
e625344
fuzzgen: Use `cloned` instead of map clone
afonso360 Oct 12, 2022
15e9fd7
fuzzgen: `rustfmt`
afonso360 Oct 12, 2022
4bf9e34
fuzzgen: Document paramless targets
afonso360 Oct 13, 2022
8796db9
fuzzgen: Add `BlockTerminatorKind`
afonso360 Oct 15, 2022
e69dbc0
fuzzen: Update BrTable/Switch comment
afonso360 Oct 15, 2022
9f863f7
fuzzgen: Minor cleanup
afonso360 Oct 15, 2022
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4 changes: 4 additions & 0 deletions cranelift/codegen/src/ir/jumptable.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,10 @@ impl JumpTableData {
table: Vec::with_capacity(capacity),
}
}
/// Create a new jump table with the provided blocks
pub fn with_blocks(table: Vec<Block>) -> Self {
Self { table }
}

/// Get the number of table entries.
pub fn len(&self) -> usize {
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6 changes: 1 addition & 5 deletions cranelift/fuzzgen/src/config.rs
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Expand Up @@ -16,10 +16,7 @@ pub struct Config {
/// This value does not apply to block0 which takes the function params
/// and is thus governed by `signature_params`
pub block_signature_params: RangeInclusive<usize>,
/// Max number of jump tables generated per function
/// Note, the actual number of jump tables may be larger if the Switch interface
/// decides to insert more.
pub jump_tables_per_function: RangeInclusive<usize>,
/// Max number of jump tables entries to generate
pub jump_table_entries: RangeInclusive<usize>,

/// The Switch API specializes either individual blocks or contiguous ranges.
Expand Down Expand Up @@ -66,7 +63,6 @@ impl Default for Config {
vars_per_function: 0..=16,
blocks_per_function: 0..=16,
block_signature_params: 0..=16,
jump_tables_per_function: 0..=4,
jump_table_entries: 0..=16,
switch_cases: 0..=64,
// Ranges smaller than 2 don't make sense.
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