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[Mono AOT] Fix error when returning zero sized struct #106013

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Merged
merged 3 commits into from
Aug 14, 2024
Merged

[Mono AOT] Fix error when returning zero sized struct #106013

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5471f28
Fix error when returning zero sized struct
jkurdek Aug 6, 2024
5c6e3c0
Add test
jkurdek Aug 8, 2024
fbb6d5e
Fix x64 errors
jkurdek Aug 13, 2024
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Fix x64 errors
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@jkurdek
jkurdek committed Aug 13, 2024
commit fbb6d5e6e2fe4433d71966d9f3d6c19ead9c71ec
5 changes: 4 additions & 1 deletion src/mono/mono/mini/mini-llvm.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1593,7 +1593,7 @@ sig_to_llvm_sig_full (EmitContext *ctx, MonoMethodSignature *sig, LLVMCallInfo *
ret_type = LLVMStructType (members, 1, FALSE);
} else if (cinfo->ret.pair_storage [0] == LLVMArgNone && cinfo->ret.pair_storage [1] == LLVMArgNone) {
/* Empty struct */
ret_type = LLVMVoidType ();
ret_type = LLVMStructType (NULL, 0, FALSE);
} else if (cinfo->ret.pair_storage [0] == LLVMArgInIReg && cinfo->ret.pair_storage [1] == LLVMArgInIReg) {
LLVMTypeRef members [2];

Expand Down Expand Up @@ -4950,6 +4950,9 @@ process_call (EmitContext *ctx, MonoBasicBlock *bb, LLVMBuilderRef *builder_ref,
/* Empty struct */
break;

if (LLVMTypeOf (lcall) == LLVMStructType (NULL, 0, FALSE))
break;

if (!addresses [ins->dreg])
addresses [ins->dreg] = build_alloca_address (ctx, sig->ret);

Expand Down