forked from OSchip/llvm-project
86 lines
2.6 KiB
LLVM
86 lines
2.6 KiB
LLVM
; RUN: llc -filetype=obj -o %t.o %s
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; RUN: wasm-ld %t.o -o %t.wasm
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; RUN: obj2yaml %t.wasm | FileCheck %s
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; RUN: wasm-ld --export=__wasm_call_ctors %t.o -o %t.export.wasm
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; RUN: obj2yaml %t.export.wasm | FileCheck %s -check-prefix=EXPORT
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; Test that we emit wrappers and call __wasm_call_ctor when not referenced.
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target triple = "wasm32-unknown-unknown"
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define hidden void @_start() {
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entry:
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ret void
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}
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define hidden void @func1() {
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entry:
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ret void
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}
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define hidden void @func2() {
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entry:
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ret void
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}
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define hidden i32 @__cxa_atexit(i32 %func, i32 %arg, i32 %dso_handle) {
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ret i32 0
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}
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@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [
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{ i32, void ()*, i8* } { i32 1, void ()* @func1, i8* null }
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]
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@llvm.global_dtors = appending global [1 x { i32, void ()*, i8* }] [
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{ i32, void ()*, i8* } { i32 1, void ()* @func2, i8* null }
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]
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; Check that we have exactly the needed exports: `memory` because that's
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; currently on by default, and `_start`, because that's the default entrypoint.
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; CHECK: - Type: EXPORT
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; CHECK-NEXT: Exports:
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; CHECK-NEXT: - Name: memory
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; CHECK-NEXT: Kind: MEMORY
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; CHECK-NEXT: Index: 0
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; CHECK-NEXT: - Name: _start
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; CHECK-NEXT: Kind: FUNCTION
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; CHECK-NEXT: Index: 7
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; Check the body of `_start`'s command-export wrapper.
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; CHECK: - Type: CODE
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; CHECK: - Index: 7
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; CHECK-NEXT: Locals: []
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; CHECK-NEXT: Body: 100010010B
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; Check the symbol table to ensure all the functions are here, and that
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; index 7 above refers to the function we think it does.
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; CHECK: - Type: CUSTOM
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; CHECK-NEXT: Name: name
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; CHECK-NEXT: FunctionNames:
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; CHECK-NEXT: - Index: 0
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; CHECK-NEXT: Name: __wasm_call_ctors
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; CHECK-NEXT: - Index: 1
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; CHECK-NEXT: Name: _start
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; CHECK-NEXT: - Index: 2
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; CHECK-NEXT: Name: func1
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; CHECK-NEXT: - Index: 3
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; CHECK-NEXT: Name: func2
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; CHECK-NEXT: - Index: 4
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; CHECK-NEXT: Name: __cxa_atexit
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; CHECK-NEXT: - Index: 5
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; CHECK-NEXT: Name: .Lcall_dtors.1
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; CHECK-NEXT: - Index: 6
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; CHECK-NEXT: Name: .Lregister_call_dtors.1
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; CHECK-NEXT: - Index: 7
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; CHECK-NEXT: Name: _start.command_export
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; EXPORT: __wasm_call_ctors
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; EXPORT: func1
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; EXPORT: func2
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; EXPORT: __cxa_atexit
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