diff options
| -rw-r--r-- | llvm/docs/TableGen/LangIntro.rst | 4 | ||||
| -rw-r--r-- | llvm/test/TableGen/strconcat.td | 14 |
2 files changed, 16 insertions, 2 deletions
diff --git a/llvm/docs/TableGen/LangIntro.rst b/llvm/docs/TableGen/LangIntro.rst index f139f359649..5b6094fa91f 100644 --- a/llvm/docs/TableGen/LangIntro.rst +++ b/llvm/docs/TableGen/LangIntro.rst @@ -160,8 +160,10 @@ supported include: remaining elements in the list may be arbitrary other values, including nested ```dag``' values. -``!strconcat(a, b)`` +``!strconcat(a, b, ...)`` A string value that is the result of concatenating the 'a' and 'b' strings. + More than two arguments are accepted with the result being the concatenation + of all the strings given. ``str1#str2`` "#" (paste) is a shorthand for !strconcat. It may concatenate things that diff --git a/llvm/test/TableGen/strconcat.td b/llvm/test/TableGen/strconcat.td index dfb1a94d82c..f5d7512fd69 100644 --- a/llvm/test/TableGen/strconcat.td +++ b/llvm/test/TableGen/strconcat.td @@ -1,9 +1,21 @@ // RUN: llvm-tblgen %s | FileCheck %s -// CHECK: fufoo +// CHECK: class Y<string Y:S = ?> { +// CHECK: string T = !strconcat(Y:S, "foo"); +// CHECK: string T2 = !strconcat(Y:S, !strconcat("foo", !strconcat(Y:S, "bar"))); +// CHECK: string S = "foobar"; +// CHECK: } + +// CHECK: def Z { +// CHECK: string T = "fufoo"; +// CHECK: string T2 = "fufoofubar"; +// CHECK: string S = "foobar"; +// CHECK: } class Y<string S> { string T = !strconcat(S, "foo"); + // More than two arguments is equivalent to nested calls + string T2 = !strconcat(S, "foo", S, "bar"); // String values concatenate lexically, as in C. string S = "foo" "bar"; |
