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transform: split interface and reflect lowering

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These two passes are related, but can definitely work independently.
Which is what this change does: it splits the two passes. This should
make it easier to change these two new passes in the future.

This change now also enables slightly better testing by testing these
two passes independently. In particular, the reflect lowering pass got
some actual tests: it was barely unit-tested before.

I have verified that this doesn't really change code size, at least not
on the microbit target. Two tests do change, but in a very minor way
(and in opposite direction).
This commit is contained in:
Ayke van Laethem
2021-04-26 13:53:05 +02:00
committed by Ron Evans
parent 52d8655eec
commit cd517a30af
10 changed files with 395 additions and 280 deletions
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transform/testdata/interface.ll
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+2 -2
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@@ -4,10 +4,10 @@ target triple = "armv7m-none-eabi"
%runtime.typecodeID = type { %runtime.typecodeID*, i32, %runtime.interfaceMethodInfo* }
%runtime.interfaceMethodInfo = type { i8*, i32 }
@"reflect/types.type:basic:uint8" = external constant %runtime.typecodeID
@"reflect/types.type:basic:uint8" = private constant %runtime.typecodeID zeroinitializer
@"reflect/types.typeid:basic:uint8" = external constant i8
@"reflect/types.typeid:basic:int16" = external constant i8
@"reflect/types.type:basic:int" = external constant %runtime.typecodeID
@"reflect/types.type:basic:int" = private constant %runtime.typecodeID zeroinitializer
@"func NeverImplementedMethod()" = external constant i8
@"Unmatched$interface" = private constant [1 x i8*] [i8* @"func NeverImplementedMethod()"]
@"func Double() int" = external constant i8