b9c328480c
I fixed support for varargs functions (previously it didn't crash but the codegen was incorrect). I added tests for structs and unions which already work. With the multivalue abi they crash in the backend, so I added a sema check that rejects structs and unions for that abi. It will also crash in the backend if passed an int128 or float128 type.
71 lines
4.1 KiB
C
71 lines
4.1 KiB
C
// RUN: %clang_cc1 -triple wasm32-unknown-unknown -target-feature +gc -O3 -emit-llvm -DSINGLE_VALUE -o - %s | FileCheck %s -check-prefixes WEBASSEMBLY,WEBASSEMBLY-SV
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// RUN: %clang_cc1 -triple wasm64-unknown-unknown -target-feature +gc -O3 -emit-llvm -DSINGLE_VALUE -o - %s | FileCheck %s -check-prefixes WEBASSEMBLY,WEBASSEMBLY-SV
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// RUN: %clang_cc1 -triple wasm64-unknown-unknown -target-feature +gc -target-abi experimental-mv -O3 -emit-llvm -o - %s 2>&1 | FileCheck %s -check-prefixes WEBASSEMBLY
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// RUN: not %clang_cc1 -triple wasm64-unknown-unknown -O3 -emit-llvm -o - %s 2>&1 | FileCheck %s -check-prefixes MISSING-GC
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void use(int);
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typedef void (*Fvoid)(void);
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void test_function_pointer_signature_void(Fvoid func) {
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// MISSING-GC: error: '__builtin_wasm_test_function_pointer_signature' needs target feature gc
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// WEBASSEMBLY: %0 = tail call i32 (ptr, ...) @llvm.wasm.ref.test.func(ptr %func, token poison)
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use(__builtin_wasm_test_function_pointer_signature(func));
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}
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typedef float (*Ffloats)(float, double, int);
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void test_function_pointer_signature_floats(Ffloats func) {
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// WEBASSEMBLY: %0 = tail call i32 (ptr, ...) @llvm.wasm.ref.test.func(ptr %func, float poison, token poison, float poison, double poison, i32 poison)
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use(__builtin_wasm_test_function_pointer_signature(func));
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}
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typedef void (*Fpointers)(Fvoid, Ffloats, void*, int*, int***, char[5]);
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void test_function_pointer_signature_pointers(Fpointers func) {
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// WEBASSEMBLY: %0 = tail call i32 (ptr, ...) @llvm.wasm.ref.test.func(ptr %func, token poison, ptr poison, ptr poison, ptr poison, ptr poison, ptr poison, ptr poison)
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use(__builtin_wasm_test_function_pointer_signature(func));
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}
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typedef void (*FVarArgs)(int, ...);
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void test_function_pointer_signature_varargs(FVarArgs func) {
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// WEBASSEMBLY: %0 = tail call i32 (ptr, ...) @llvm.wasm.ref.test.func(ptr %func, token poison, i32 poison, ptr poison)
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use(__builtin_wasm_test_function_pointer_signature(func));
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}
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typedef __externref_t (*FExternRef)(__externref_t, __externref_t);
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void test_function_pointer_externref(FExternRef func) {
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// WEBASSEMBLY: %0 = tail call i32 (ptr, ...) @llvm.wasm.ref.test.func(ptr %func, ptr addrspace(10) poison, token poison, ptr addrspace(10) poison, ptr addrspace(10) poison)
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use(__builtin_wasm_test_function_pointer_signature(func));
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}
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typedef __funcref Fpointers (*FFuncRef)(__funcref Fvoid, __funcref Ffloats);
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void test_function_pointer_funcref(FFuncRef func) {
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// WEBASSEMBLY: %0 = tail call i32 (ptr, ...) @llvm.wasm.ref.test.func(ptr %func, ptr addrspace(20) poison, token poison, ptr addrspace(20) poison, ptr addrspace(20) poison)
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use(__builtin_wasm_test_function_pointer_signature(func));
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}
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#ifdef SINGLE_VALUE
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// Some tests that we get struct ABIs correct. There is no special code in
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// __builtin_wasm_test_function_pointer_signature for this, it gets handled by
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// the normal type lowering code.
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// Single element structs are unboxed, multi element structs are passed on
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// stack.
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typedef struct {double x;} (*Fstructs1)(struct {double x;}, struct {float x;}, struct {double x; float y;});
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void test_function_pointer_structs1(Fstructs1 func) {
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// WEBASSEMBLY-SV: %0 = tail call i32 (ptr, ...) @llvm.wasm.ref.test.func(ptr %func, double poison, token poison, double poison, float poison, ptr poison)
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use(__builtin_wasm_test_function_pointer_signature(func));
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}
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// Two element return struct ==> return ptr on stack
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typedef struct {double x; double y;} (*Fstructs2)(void);
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void test_function_pointer_structs2(Fstructs2 func) {
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// WEBASSEMBLY-SV: %0 = tail call i32 (ptr, ...) @llvm.wasm.ref.test.func(ptr %func, token poison, ptr poison)
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use(__builtin_wasm_test_function_pointer_signature(func));
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}
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// Return union ==> return ptr on stack, one element union => unboxed
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typedef union {double x; float y;} (*FUnions)(union {double x; float y;}, union {double x;});
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void test_function_pointer_unions(FUnions func) {
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// WEBASSEMBLY-SV: %0 = tail call i32 (ptr, ...) @llvm.wasm.ref.test.func(ptr %func, token poison, ptr poison, ptr poison, double poison)
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use(__builtin_wasm_test_function_pointer_signature(func));
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}
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#endif
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