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Add EntryRegDiversions to record diversions for each block entry.

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This commit is contained in:
Nicolas B. Pierron
2019-08-01 15:06:49 +02:00
committed by Nicolas B. Pierron
parent 9eb1847d80
commit bb87f1a54a
9 changed files with 126 additions and 16 deletions
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5
cranelift/codegen/src/binemit/relaxation.rs
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@@ -74,7 +74,7 @@ pub fn relax_branches(
{
let mut cur = FuncCursor::new(func);
while let Some(ebb) = cur.next_ebb() {
divert.clear();
divert.at_ebb(&cur.func.entry_diversions, ebb);
cur.func.offsets[ebb] = offset;
while let Some(inst) = cur.next_inst() {
divert.apply(&cur.func.dfg[inst]);
@@ -93,7 +93,8 @@ pub fn relax_branches(
// Visit all instructions in layout order.
let mut cur = FuncCursor::new(func);
while let Some(ebb) = cur.next_ebb() {
divert.clear();
divert.at_ebb(&cur.func.entry_diversions, ebb);
// Record the offset for `ebb` and make sure we iterate until offsets are stable.
if cur.func.offsets[ebb] != offset {
cur.func.offsets[ebb] = offset;