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interp: fix bug in compiler-time/run-time package initializers

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Make sure that if a package initializer cannot be run, later package
initializers won't try to access any global variables touched by the
uninterpretable package initializer.
This commit is contained in:
Ayke van Laethem
2021-07-14 20:10:37 +02:00
committed by Ron Evans
parent 607d824211
commit efa0410075
3 changed files with 40 additions and 0 deletions
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interp/testdata/revert.ll
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+11
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@@ -3,17 +3,28 @@ target triple = "x86_64--linux"
declare void @externalCall(i64)
@foo.knownAtRuntime = global i64 0
@bar.knownAtRuntime = global i64 0
define void @runtime.initAll() unnamed_addr {
entry:
call void @foo.init(i8* undef, i8* undef)
call void @bar.init(i8* undef, i8* undef)
call void @main.init(i8* undef, i8* undef)
ret void
}
define internal void @foo.init(i8* %context, i8* %parentHandle) unnamed_addr {
store i64 5, i64* @foo.knownAtRuntime
unreachable ; this triggers a revert of @foo.init.
}
define internal void @bar.init(i8* %context, i8* %parentHandle) unnamed_addr {
%val = load i64, i64* @foo.knownAtRuntime
store i64 %val, i64* @bar.knownAtRuntime
ret void
}
define internal void @main.init(i8* %context, i8* %parentHandle) unnamed_addr {
entry:
call void @externalCall(i64 3)