Committed.
No dots in labels for MMIX: internal labels instead contain ":".
gcc/testsuite:
* c-c++-common/pr56493.c: Allow ":" in label, for mmix.
--- gcc/gcc/testsuite/c-c++-common/pr56493.c.orig Mon Jan 13 22:30:46 2020
+++ gcc/gcc/testsuite/c-c++-common/pr56493.c Sat Jul 25 00:00:28 2020
@@ -12,4 +12,4 @@ foo (void)
}
/* Verify we narrow the addition from unsigned long long to unsigned int type.
*/
-/* { dg-final { scan-tree-dump " (\[a-zA-Z._0-9$]*) = \\(unsigned int\\)
\[^;\n\r]*;.* (\[a-zA-Z._0-9$]*) = \\(unsigned int\\) \[^;\n\r]*;.* = \\1 \\+
\\2;" "gimple" { target { ilp32 || lp64 } } } } */
+/* { dg-final { scan-tree-dump " (\[a-zA-Z._0-9$:]*) = \\(unsigned int\\)
\[^;\n\r]*;.* (\[a-zA-Z._0-9$:]*) = \\(unsigned int\\) \[^;\n\r]*;.* = \\1 \\+
\\2;" "gimple" { target { ilp32 || lp64 } } } } */
