https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80219
Bug ID: 80219
Summary: relative line numbers only working if
gcc_{error,warning}_prefix defined
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: testsuite
Assignee: unassigned at gcc dot gnu.org
Reporter: vries at gcc dot gnu.org
Target Milestone: ---
Relative line numbers for dg-{warning,error,bogus,message} are handled in
gcc-dg.exp:process-message.
dg-message is a gcc native construct, and uses process-message.
dg-error and dg-bogus are overridden to use process-message, if
gcc_error_prefix is defined (and save-dg-error is not already defined).
dg-warning is overridden to use process-message, if gcc_warning_prefix is
defined (and save-dg-warning is not already defined).
Consequently, for testcases that are run from a .exp file not setting
gcc_{error,warning}_prefix, using relative line numbers in
dg-{warning,error,bogus} doesn't work.
F.i., this doesn't work:
...
diff --git a/gcc/testsuite/gnat.dg/warn4.adb b/gcc/testsuite/gnat.dg/warn4.adb
index 94147c1..db21a42 100644
--- a/gcc/testsuite/gnat.dg/warn4.adb
+++ b/gcc/testsuite/gnat.dg/warn4.adb
@@ -12,7 +12,7 @@ procedure Warn4 is
type POSIX_String_Ptr is access all POSIX_String;
function sptr_to_psptr is new Unchecked_Conversion -- { dg-warning
"aliasing problem" }
- (String_Ptr, POSIX_String_Ptr); -- { dg-warning "" "" { target *-*-* } 14
}
+ (String_Ptr, POSIX_String_Ptr); -- { dg-warning "" "" { target *-*-* }
.-1 }
function To_POSIX_String (Str : String) return POSIX_String;
function To_POSIX_String (Str : String)
...
We get:
...
ERROR: gnat.dg/warn4.adb: expected integer but got ".-1" for " dg-warning 15 ""
"" { target *-*-* } .-1 "
UNRESOLVED: gnat.dg/warn4.adb: expected integer but got ".-1" for " dg-warning
15 "" "" { target *-*-* } .-1 "
...
