| ; Test that variables not starting with dollar sign get undefined after a | 
 | ; CHECK-LABEL directive iff --enable-var-scope is used. | 
 |  | 
 | ; Reference run: variables remain defined at all time when not using | 
 | ; --enable-var-scope option. | 
 | RUN: FileCheck --check-prefixes CHECK,LOCAL3,GLOBAL --input-file %s %s | 
 |  | 
 | RUN: FileCheck --check-prefixes CHECK,GLOBAL --enable-var-scope --input-file %s %s | 
 | RUN: %ProtectFileCheckOutput not FileCheck --check-prefixes CHECK,LOCAL1 --enable-var-scope --input-file %s %s 2>&1 \ | 
 | RUN:   | FileCheck --check-prefix ERRUNDEFLOCAL %s | 
 | RUN: %ProtectFileCheckOutput not FileCheck --check-prefixes CHECK,LOCAL2 --enable-var-scope --input-file %s %s 2>&1 \ | 
 | RUN:   | FileCheck --check-prefix ERRUNDEFLOCNUM %s | 
 | RUN: %ProtectFileCheckOutput not FileCheck --check-prefixes CHECK,LOCAL3 --enable-var-scope --input-file %s %s 2>&1 \ | 
 | RUN:   | FileCheck --check-prefixes ERRUNDEFLOCAL,ERRUNDEFLOCNUM %s | 
 |  | 
 | local1 | 
 | global1 | 
 | CHECK: [[LOCAL:loc[^[:digit:]]*]][[#LOCNUM:]] | 
 | CHECK: [[$GLOBAL:glo[^[:digit:]]*]][[#$GLOBNUM:]] | 
 |  | 
 | local2 | 
 | global2 | 
 | CHECK: [[LOCAL]][[#LOCNUM+1]] | 
 | CHECK: [[$GLOBAL]][[#$GLOBNUM+1]] | 
 |  | 
 | barrier: | 
 | CHECK-LABEL: barrier | 
 |  | 
 | local3 | 
 | global3 | 
 | LOCAL1: [[LOCAL]]3 | 
 | LOCAL2: local[[#LOCNUM+2]] | 
 | LOCAL3: [[LOCAL]][[#LOCNUM+2]] | 
 | GLOBAL: [[$GLOBAL]][[#$GLOBNUM+2]] | 
 |  | 
 | ERRUNDEFLOCAL: undefined variable: LOCAL | 
 | ERRUNDEFLOCNUM: undefined variable: LOCNUM |