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s390x: Fix handling of sret arguments (#5116)

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Skip synthetic StructReturn entries in the return value list.
Fixes https://github.com/bytecodealliance/wasmtime/issues/5089
This commit is contained in:
Ulrich Weigand
2022-10-25 19:40:10 +02:00
committed by GitHub
parent 441401f9d6
commit 39b3b1d772
4 changed files with 34 additions and 3 deletions
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9
cranelift/codegen/src/isa/s390x/lower.isle
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@@ -3892,7 +3892,8 @@
(uses CallArgList (lower_call_args abi (range 0 (abi_num_args abi)) args))
(defs CallRetList (defs_init abi))
(_ InstOutput (side_effect (abi_call abi name uses defs (Opcode.Call)))))
(lower_call_rets abi defs (range 0 (abi_num_rets abi)) (output_builder_new))))
(lower_call_rets abi defs (range (abi_first_ret sig_ref abi)
(abi_num_rets abi)) (output_builder_new))))
;; Direct call to an out-of-range function (implicitly via pointer).
(rule (lower (call (func_ref_data sig_ref name _) args))
@@ -3902,7 +3903,8 @@
(defs CallRetList (defs_init abi))
(target Reg (load_symbol_reloc (SymbolReloc.Absolute name 0)))
(_ InstOutput (side_effect (abi_call_ind abi target uses defs (Opcode.Call)))))
(lower_call_rets abi defs (range 0 (abi_num_rets abi)) (output_builder_new))))
(lower_call_rets abi defs (range (abi_first_ret sig_ref abi)
(abi_num_rets abi)) (output_builder_new))))
;; Indirect call.
(rule (lower (call_indirect sig_ref ptr args))
@@ -3912,7 +3914,8 @@
(uses CallArgList (lower_call_args abi (range 0 (abi_num_args abi)) args))
(defs CallRetList (defs_init abi))
(_ InstOutput (side_effect (abi_call_ind abi target uses defs (Opcode.CallIndirect)))))
(lower_call_rets abi defs (range 0 (abi_num_rets abi)) (output_builder_new))))
(lower_call_rets abi defs (range (abi_first_ret sig_ref abi)
(abi_num_rets abi)) (output_builder_new))))
;; Lower function arguments.
(decl lower_call_args (Sig Range ValueSlice) CallArgList)