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| author | David Greene <greened@obbligato.org> | 2009-12-21 21:21:34 +0000 |
|---|---|---|
| committer | David Greene <greened@obbligato.org> | 2009-12-21 21:21:34 +0000 |
| commit | f660802f348e4e57ef9df8d30be74b894259badb (patch) | |
| tree | 4ad5603c0f42c4d15e5b60b3c5a3464cf1842ab9 /test/TableGen | |
| parent | 7b1eb8a4091ff4e76323ce2d4a42d5d14b5e3f50 (diff) | |
| download | llvm-f660802f348e4e57ef9df8d30be74b894259badb.tar.gz llvm-f660802f348e4e57ef9df8d30be74b894259badb.tar.bz2 llvm-f660802f348e4e57ef9df8d30be74b894259badb.tar.xz | |
Fix a bug in !subst where TableGen would go and resubstitute text it had
just substituted. This could cause infinite looping in certain
pathological cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91843 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/TableGen')
| -rw-r--r-- | test/TableGen/subst2.td | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/TableGen/subst2.td b/test/TableGen/subst2.td new file mode 100644 index 0000000000..3366c9d9cf --- /dev/null +++ b/test/TableGen/subst2.td @@ -0,0 +1,15 @@ +// RUN: tblgen %s | FileCheck %s +// CHECK: No subst +// CHECK: No foo +// CHECK: RECURSE foo + +class Recurse<string t> { + string Text = t; +} + +class Text<string text> : + Recurse<!subst("RECURSE", "RECURSE", !subst("NORECURSE", "foo", text))>; + +def Ok1 : Text<"No subst">; +def Ok2 : Text<"No NORECURSE">; +def Trouble : Text<"RECURSE NORECURSE">; |