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Perform CppThunkRef conversion as part of category conversion. (#7020)

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Instead of recursing back into Convert, make CppThunkRef conversion just
add an extra step to category conversion, performing a copy conversion
followed by an ephemeral reference binding conversion.
This commit is contained in:
Richard Smith
2026-04-02 23:39:25 +00:00
committed by GitHub
parent 9266ced4e3
commit 81ed4d829d
7 changed files with 46 additions and 48 deletions
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toolchain/lower/testdata/interop/cpp/nullptr.carbon
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@@ -89,8 +89,8 @@ fn ConvertNullptrConstant() -> Core.Optional(i32*) {
// CHECK:STDOUT: store ptr %Cpp.nullptr_t.as.ImplicitAs.impl.Convert.call, ptr %.loc12_18.2.temp, align 8, !dbg !19
// CHECK:STDOUT: %.loc12_18.4 = load ptr, ptr %.loc12_18.2.temp, align 8, !dbg !19
// CHECK:STDOUT: call void @_Z7TakePtrPi(ptr %.loc12_18.4), !dbg !21
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc14_22.1.temp), !dbg !20
// CHECK:STDOUT: %Cpp.nullptr_t.as.Copy.impl.Op.call = call ptr @"_COp.NullptrT.CppCompat.Core:Copy.Core"(ptr poison), !dbg !20
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc14_22.1.temp), !dbg !20
// CHECK:STDOUT: store ptr %Cpp.nullptr_t.as.Copy.impl.Op.call, ptr %.loc14_22.1.temp, align 8, !dbg !20
// CHECK:STDOUT: call void @_Z11TakeNullptrDn.carbon_thunk(ptr %.loc14_22.1.temp), !dbg !22
// CHECK:STDOUT: call void @"_COp.705e422c84320121:core.Destroy.Core"(ptr %.loc14_22.1.temp), !dbg !20