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IRGen: don't crash when emitting a statically initialized global enum with a StaticBigInt payload

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Integer literals with `BuiltinIntegerLiteralType` need a special handling.

rdar://162322558
This commit is contained in:
Erik Eckstein
2025-11-03 16:19:21 +01:00
parent 0b342ded1c
commit 3150a33076
2 changed files with 35 additions and 0 deletions
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7
lib/IRGen/GenConstant.cpp
View File

@@ -269,6 +269,13 @@ Explosion irgen::emitConstantValue(IRGenModule &IGM, SILValue operand,
strategy.emitValueInjection(IGM, builder, ei->getElement(), data, out);
return replaceUnalignedIntegerValues(IGM, std::move(out));
} else if (auto *ILI = dyn_cast<IntegerLiteralInst>(operand)) {
if (ILI->getType().is<BuiltinIntegerLiteralType>()) {
auto pair = emitConstantIntegerLiteral(IGM, ILI);
Explosion e;
e.add(pair.Data);
e.add(pair.Flags);
return e;
}
return emitConstantInt(IGM, ILI);
} else if (auto *FLI = dyn_cast<FloatLiteralInst>(operand)) {
return emitConstantFP(IGM, FLI);

28
test/SILOptimizer/static_bigint_enums.swift Normal file
View File

@@ -0,0 +1,28 @@
// RUN: %target-build-swift -parse-as-library -O %s -module-name=test -emit-sil | %FileCheck %s
// RUN: %empty-directory(%t)
// RUN: %target-build-swift -parse-as-library -O -module-name=test %s -o %t/a.out
// RUN: %target-run %t/a.out | %FileCheck %s -check-prefix=CHECK-OUTPUT
// REQUIRES: executable_test,swift_stdlib_no_asserts,optimized_stdlib
// UNSUPPORTED: use_os_stdlib
@available(SwiftStdlib 5.8, *)
public enum StaticIntStringEnum {
case s(StaticString)
case i(StaticBigInt)
// CHECK-LABEL: sil_global hidden @$s4test19StaticIntStringEnumO1xACvpZ : $StaticIntStringEnum = {
static var x = Self.i(27)
}
@available(SwiftStdlib 5.8, *)
@main
struct Main {
static func main() {
// CHECK-OUTPUT: StaticIntStringEnum: i(+0x1B)
print("StaticIntStringEnum:", StaticIntStringEnum.x)
}
}