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Support chained interrupt handlers

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Multiple calls to interrupt.New are permitted with handlers called sequentially in undefined order.
This commit is contained in:
Kenneth Bell
2021-04-29 00:46:52 -07:00
committed by Ron Evans
parent e312cb0fe7
commit e3b98dabfd
2 changed files with 107 additions and 75 deletions
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compiler/interrupt.go
+1 -4
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@@ -41,10 +41,7 @@ func (b *builder) createInterruptGlobal(instr *ssa.CallCommon) (llvm.Value, erro
// type are lowered in the interrupt lowering pass.
globalType := b.program.ImportedPackage("runtime/interrupt").Type("handle").Type()
globalLLVMType := b.getLLVMType(globalType)
globalName := "runtime/interrupt.$interrupt" + strconv.FormatInt(id.Int64(), 10)
if global := b.mod.NamedGlobal(globalName); !global.IsNil() {
return llvm.Value{}, b.makeError(instr.Pos(), "interrupt redeclared in this program")
}
globalName := b.fn.Package().Pkg.Path() + "$interrupt" + strconv.FormatInt(id.Int64(), 10)
global := llvm.AddGlobal(b.mod, globalLLVMType, globalName)
global.SetVisibility(llvm.HiddenVisibility)
global.SetGlobalConstant(true)