[17.0.0] Backport fix x64 option i128 abi#7771
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alexcrichton merged 1 commit intoJan 11, 2024
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LLVM passes the tag in rax and the u128 val in rdx/rcx. Before this change Cranelift would pass the first half of the value in rdx and the second half using an implicit return value pointer.
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This only affects programs that use enable_llvm_abi_extensions, which is not Wasmtime. As such I think this ok to backport. |
alexcrichton
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Jan 11, 2024
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LLVM passes the tag in rax and the u128 val in rdx/rcx. Before this change Cranelift would pass the first half of the value in rdx and the second half using an implicit return value pointer.
Backport of #7770 to 17.0.0