tinygo-org/tinygo
1
0
Fork 0
mirror of https://github.com/tinygo-org/tinygo.git synced 2026-08-09 05:23:40 +00:00
Code Issues Packages Projects Releases 6 Wiki Activity

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

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files
interp/testdata/revert.ll
Vendored
+11
View File
@@ -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)
interp/testdata/revert.out.ll
Vendored
+6
View File
@@ -1,15 +1,21 @@
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64--linux"
@foo.knownAtRuntime = local_unnamed_addr global i64 0
@bar.knownAtRuntime = local_unnamed_addr global i64 0
declare void @externalCall(i64) local_unnamed_addr
define void @runtime.initAll() unnamed_addr {
entry:
call fastcc void @foo.init(i8* undef, i8* undef)
%val = load i64, i64* @foo.knownAtRuntime, align 8
store i64 %val, i64* @bar.knownAtRuntime, align 8
call void @externalCall(i64 3)
ret void
}
define internal fastcc void @foo.init(i8* %context, i8* %parentHandle) unnamed_addr {
store i64 5, i64* @foo.knownAtRuntime, align 8
unreachable
}