llvm/test/tools/UpdateTestChecks/update_test_body/basic.test

; RUN: cp %s %t && %update_test_body %t 2>&1 | count 0
; RUN: diff -u %S/Inputs/basic.test.expected %t

;--- a.txt
@a = global i32 0
;--- b.txt
@b = global i32 0
;--- gen
cat a.txt
echo ';--- b.ll'
cat b.txt

;--- a.ll