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interp: support llvm.lifetime.* calls

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This fixes a bug found when updating a map with string keys.
Originally reported here:
https://github.com/hybridgroup/gdg-2019/issues/6
This commit is contained in:
Ayke van Laethem
2019-12-19 14:16:58 +01:00
committed by Ron Evans
parent 34ee3883d6
commit 9aeb8d9e06
6 changed files with 75 additions and 12 deletions
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interp/testdata/map.ll
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+36
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@@ -0,0 +1,36 @@
target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "armv6m-none-eabi"
%runtime._string = type { i8*, i32 }
%runtime.hashmap = type { %runtime.hashmap*, i8*, i32, i8, i8, i8 }
@main.m = global %runtime.hashmap* null
@main.init.string = internal unnamed_addr constant [7 x i8] c"CONNECT"
declare %runtime.hashmap* @runtime.hashmapMake(i8, i8, i32, i8* %context, i8* %parentHandle)
declare void @runtime.hashmapBinarySet(%runtime.hashmap*, i8*, i8*, i8* %context, i8* %parentHandle)
declare void @llvm.lifetime.end.p0i8(i64, i8*)
declare void @llvm.lifetime.start.p0i8(i64, i8*)
define void @runtime.initAll() unnamed_addr {
entry:
call void @main.init(i8* undef, i8* null)
ret void
}
define internal void @main.init(i8* %context, i8* %parentHandle) unnamed_addr {
entry:
%hashmap.key = alloca i8
%hashmap.value = alloca %runtime._string
%0 = call %runtime.hashmap* @runtime.hashmapMake(i8 1, i8 8, i32 1, i8* undef, i8* null)
%hashmap.value.bitcast = bitcast %runtime._string* %hashmap.value to i8*
call void @llvm.lifetime.start.p0i8(i64 8, i8* %hashmap.value.bitcast)
store %runtime._string { i8* getelementptr inbounds ([7 x i8], [7 x i8]* @main.init.string, i32 0, i32 0), i32 7 }, %runtime._string* %hashmap.value
call void @llvm.lifetime.start.p0i8(i64 1, i8* %hashmap.key)
store i8 1, i8* %hashmap.key
call void @runtime.hashmapBinarySet(%runtime.hashmap* %0, i8* %hashmap.key, i8* %hashmap.value.bitcast, i8* undef, i8* null)
call void @llvm.lifetime.end.p0i8(i64 1, i8* %hashmap.key)
call void @llvm.lifetime.end.p0i8(i64 8, i8* %hashmap.value.bitcast)
store %runtime.hashmap* %0, %runtime.hashmap** @main.m
ret void
}