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[IRGen] Fix placeholder logic for emission of conditionally inverted … #82347

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Merged
merged 1 commit into from
Jun 19, 2025
Merged

[IRGen] Fix placeholder logic for emission of conditionally inverted … #82347

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7 changes: 4 additions & 3 deletions lib/IRGen/GenMeta.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1393,12 +1393,13 @@ namespace {

// Create placeholders for the counts of the conditional requirements
// for each conditional conformance to a supressible protocol.
unsigned numProtocols = countBitsUsed(protocols.rawBits());
unsigned numProtocols = 0;
using PlaceholderPosition =
ConstantAggregateBuilderBase::PlaceholderPosition;
SmallVector<PlaceholderPosition, 2> countPlaceholders;
for (unsigned i : range(0, numProtocols)) {
(void)i;
for (auto kind : protocols) {
(void)kind;
numProtocols++;
countPlaceholders.push_back(
B.addPlaceholderWithSize(IGM.Int16Ty));
}
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8 changes: 8 additions & 0 deletions validation-test/IRGen/rdar153681688.swift
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Original file line number Diff line number Diff line change
@@ -0,0 +1,8 @@
// RUN: %target-swift-frontend %s -target %target-swift-5.9-abi-triple -emit-ir

public enum Enum<T : ~Escapable> : ~Escapable {
case none
case some(T)
}

extension Enum: Escapable where T: Escapable {}