1570adac1c
This is a common case, but it also complicates the code. Removing this special case does have a negative effect on code size in rare cases, but I don't think it's worth keeping around (and possibly causing bugs) for such uncommon cases. This should not result in functional changes, although the output (as stated above) sometimes changes a little bit.
116 строки
3,9 КиБ
LLVM
116 строки
3,9 КиБ
LLVM
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "armv7m-none-eabi"
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%runtime.typecodeID = type { %runtime.typecodeID*, i32 }
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@"reflect/types.type:basic:uint8" = external constant %runtime.typecodeID
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@"reflect/types.type:basic:int" = external constant %runtime.typecodeID
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@"func NeverImplementedMethod()" = external constant i8
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@"Unmatched$interface" = private constant [1 x i8*] [i8* @"func NeverImplementedMethod()"]
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@"func Double() int" = external constant i8
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@"Doubler$interface" = private constant [1 x i8*] [i8* @"func Double() int"]
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@"reflect/types.type:named:Number" = private constant %runtime.typecodeID { %runtime.typecodeID* @"reflect/types.type:basic:int", i32 0 }
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declare i1 @runtime.interfaceImplements(i32, i8**)
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declare i1 @runtime.typeAssert(i32, %runtime.typecodeID*)
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declare i32 @runtime.interfaceMethod(i32, i8**, i8*)
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declare void @runtime.printuint8(i8)
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declare void @runtime.printint32(i32)
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declare void @runtime.printptr(i32)
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declare void @runtime.printnl()
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define void @printInterfaces() {
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call void @printInterface(i32 4, i8* inttoptr (i32 5 to i8*))
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call void @printInterface(i32 16, i8* inttoptr (i8 120 to i8*))
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call void @printInterface(i32 68, i8* inttoptr (i32 3 to i8*))
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ret void
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}
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define void @printInterface(i32 %typecode, i8* %value) {
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%typeassert.ok1 = call i1 @"Unmatched$typeassert"(i32 %typecode)
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br i1 %typeassert.ok1, label %typeswitch.Unmatched, label %typeswitch.notUnmatched
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typeswitch.Unmatched: ; preds = %0
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%unmatched = ptrtoint i8* %value to i32
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call void @runtime.printptr(i32 %unmatched)
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call void @runtime.printnl()
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ret void
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typeswitch.notUnmatched: ; preds = %0
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%typeassert.ok = call i1 @"Doubler$typeassert"(i32 %typecode)
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br i1 %typeassert.ok, label %typeswitch.Doubler, label %typeswitch.notDoubler
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typeswitch.Doubler: ; preds = %typeswitch.notUnmatched
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%1 = call i32 @"(Doubler).Double"(i8* %value, i8* null, i32 %typecode, i8* null)
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call void @runtime.printint32(i32 %1)
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ret void
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typeswitch.notDoubler: ; preds = %typeswitch.notUnmatched
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%typeassert.ok2 = icmp eq i32 16, %typecode
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br i1 %typeassert.ok2, label %typeswitch.byte, label %typeswitch.notByte
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typeswitch.byte: ; preds = %typeswitch.notDoubler
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%byte = ptrtoint i8* %value to i8
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call void @runtime.printuint8(i8 %byte)
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call void @runtime.printnl()
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ret void
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typeswitch.notByte: ; preds = %typeswitch.notDoubler
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ret void
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}
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define i32 @"(Number).Double"(i32 %receiver, i8* %parentHandle) {
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%ret = mul i32 %receiver, 2
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ret i32 %ret
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}
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define i32 @"(Number).Double$invoke"(i8* %receiverPtr, i8* %parentHandle) {
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%receiver = ptrtoint i8* %receiverPtr to i32
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%ret = call i32 @"(Number).Double"(i32 %receiver, i8* null)
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ret i32 %ret
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}
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define internal i32 @"(Doubler).Double"(i8* %0, i8* %1, i32 %actualType, i8* %parentHandle) unnamed_addr {
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entry:
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switch i32 %actualType, label %default [
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i32 68, label %"reflect/types.type:named:Number"
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]
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default: ; preds = %entry
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unreachable
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"reflect/types.type:named:Number": ; preds = %entry
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%2 = call i32 @"(Number).Double$invoke"(i8* %0, i8* %1)
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ret i32 %2
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}
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define internal i1 @"Doubler$typeassert"(i32 %actualType) unnamed_addr {
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entry:
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switch i32 %actualType, label %else [
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i32 68, label %then
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]
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then: ; preds = %entry
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ret i1 true
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else: ; preds = %entry
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ret i1 false
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}
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define internal i1 @"Unmatched$typeassert"(i32 %actualType) unnamed_addr {
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entry:
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switch i32 %actualType, label %else [
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]
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then: ; No predecessors!
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ret i1 true
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else: ; preds = %entry
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ret i1 false
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}
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