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compiler: add tests

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This commit adds a very small test case. More importantly, it adds a
framework for other tests to be added in the future.
This commit is contained in:
Ayke van Laethem
2020-03-29 16:25:35 +02:00
parent b8db79f6a6
commit f58e75c386
6 changed files with 174 additions and 12 deletions
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compiler/compiler.go
+17 -9
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@@ -98,15 +98,9 @@ func NewTargetMachine(config *compileopts.Config) (llvm.TargetMachine, error) {
return machine, nil
}
// Compile the given package path or .go file path. Return an error when this
// fails (in any stage). If successful it returns the LLVM module and a list of
// extra C files to be compiled. If not, one or more errors will be returned.
//
// The fact that it returns a list of filenames to compile is a layering
// violation. Eventually, this Compile function should only compile a single
// package and not the whole program, and loading of the program (including CGo
// processing) should be moved outside the compiler package.
func Compile(pkgName string, machine llvm.TargetMachine, config *compileopts.Config) (llvm.Module, []string, []error) {
// newCompilerContext builds a new *compilerContext based on the provided
// configuration, ready to compile Go SSA to LLVM IR.
func newCompilerContext(pkgName string, machine llvm.TargetMachine, config *compileopts.Config) *compilerContext {
c := &compilerContext{
Config: config,
difiles: make(map[string]llvm.Metadata),
@@ -140,6 +134,20 @@ func Compile(pkgName string, machine llvm.TargetMachine, config *compileopts.Con
c.funcPtrAddrSpace = dummyFunc.Type().PointerAddressSpace()
dummyFunc.EraseFromParentAsFunction()
return c
}
// Compile the given package path or .go file path. Return an error when this
// fails (in any stage). If successful it returns the LLVM module and a list of
// extra C files to be compiled. If not, one or more errors will be returned.
//
// The fact that it returns a list of filenames to compile is a layering
// violation. Eventually, this Compile function should only compile a single
// package and not the whole program, and loading of the program (including CGo
// processing) should be moved outside the compiler package.
func Compile(pkgName string, machine llvm.TargetMachine, config *compileopts.Config) (llvm.Module, []string, []error) {
c := newCompilerContext(pkgName, machine, config)
// Prefix the GOPATH with the system GOROOT, as GOROOT is already set to
// the TinyGo root.
overlayGopath := goenv.Get("GOPATH")