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transform: don't rely on struct name of runtime.typecodeID

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Sometimes, LLVM may rename named structs when merging modules.
Therefore, we can't rely on typecodeID structs to retain their struct
names.

This commit changes the interface lowering pass to not rely on these
names. The interp package does however still rely on this name, but I
hope to fix that in the future.
This commit is contained in:
Ayke van Laethem
2021-04-05 14:46:08 +02:00
committed by Ron Evans
parent 49ec3eb58e
commit 61243f6c57
8 changed files with 21 additions and 27 deletions
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compiler/testdata/interface.ll
Vendored
+2 -2
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@@ -19,7 +19,7 @@ target triple = "i686--linux"
@"reflect/types.type:interface:{String:func:{}{basic:string}}" = linkonce_odr constant %runtime.typecodeID { %runtime.typecodeID* bitcast ([1 x i8*]* @"reflect/types.interface:interface{String() string}$interface" to %runtime.typecodeID*), i32 0, %runtime.interfaceMethodInfo* null }
@"func String() string" = external constant i8
@"reflect/types.interface:interface{String() string}$interface" = linkonce_odr constant [1 x i8*] [i8* @"func String() string"]
@"reflect/types.type:basic:int$id" = external constant i8
@"reflect/types.typeid:basic:int" = external constant i8
@"error$interface" = linkonce_odr constant [1 x i8*] [i8* @"func Error() string"]
declare noalias nonnull i8* @runtime.alloc(i32, i8*, i8*)
@@ -51,7 +51,7 @@ entry:
define hidden i1 @main.isInt(i32 %itf.typecode, i8* %itf.value, i8* %context, i8* %parentHandle) unnamed_addr {
entry:
%typecode = call i1 @runtime.typeAssert(i32 %itf.typecode, i8* nonnull @"reflect/types.type:basic:int$id", i8* undef, i8* null)
%typecode = call i1 @runtime.typeAssert(i32 %itf.typecode, i8* nonnull @"reflect/types.typeid:basic:int", i8* undef, i8* null)
br i1 %typecode, label %typeassert.ok, label %typeassert.next
typeassert.ok: ; preds = %entry