[gcc r15-4545] testsuite: Add test directive checking removal of link_error

[Jennifer Schmitz via Gcc-cvs]

https://gcc.gnu.org/g:bf11ecbb02b517dff0034f02adacf9269a11a095

commit r15-4545-gbf11ecbb02b517dff0034f02adacf9269a11a095
Author: Jennifer Schmitz <jschm...@nvidia.com>
Date:   Tue Oct 22 05:54:13 2024 -0700

    testsuite: Add test directive checking removal of link_error
    
    This test needs a directive checking the removal of the link_error.
    Committed as obvious.
    
    Signed-off-by: Jennifer Schmitz <jschm...@nvidia.com>
    
    gcc/testsuite/
            * gcc.dg/tree-ssa/log_ident.c: Add scan for removal of
            link_error in optimized tree dump.

Diff:
---
 gcc/testsuite/gcc.dg/tree-ssa/log_ident.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/log_ident.c 
b/gcc/testsuite/gcc.dg/tree-ssa/log_ident.c
index 80528beb7238..9c4d152438d7 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/log_ident.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/log_ident.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -ffast-math" } */
+/* { dg-options "-O2 -ffast-math -fdump-tree-optimized" } */
 /* { dg-require-effective-target c99_runtime } */
 
 extern void link_error(void);
@@ -54,3 +54,5 @@ extern void link_error(void);
 TEST_LOGS (double, , )
 TEST_LOGS (float, f, f)
 TEST_LOGS (long double, L, l)
+
+/* { dg-final { scan-tree-dump-not "link_error" "optimized" } } */