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Diffstat (limited to 'docs/CommandGuide/FileCheck.rst')
| -rw-r--r-- | docs/CommandGuide/FileCheck.rst | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/docs/CommandGuide/FileCheck.rst b/docs/CommandGuide/FileCheck.rst index 6fdc175c86..1d7a462bd7 100644 --- a/docs/CommandGuide/FileCheck.rst +++ b/docs/CommandGuide/FileCheck.rst @@ -276,8 +276,9 @@ simple example: The first check line matches a regex (**%[a-z]+**) and captures it into the variable "REGISTER". The second line verifies that whatever is in REGISTER occurs later in the file after an "andw". FileCheck variable references are -always contained in **[[ ]]** pairs, are named, and their names can be -name, then it is a definition of the variable, if not, it is a use. +always contained in **[[ ]]** pairs, and their names can be formed with the +regex **[a-zA-Z][a-zA-Z0-9]***. If a colon follows the name, then it is a +definition of the variable; otherwise, it is a use. FileCheck variables can be defined multiple times, and uses always get the latest value. Note that variables are all read at the start of a "CHECK" line |