[gcc r15-9434] testcase: Add testcase for already fixed PR [PR118476]

[Andrew Pinski via Gcc-cvs]

https://gcc.gnu.org/g:d45a6502d1ec87d43f1a39f87cca58f1e28369c8

commit r15-9434-gd45a6502d1ec87d43f1a39f87cca58f1e28369c8
Author: Andrew Pinski <quic_apin...@quicinc.com>
Date:   Mon Apr 14 08:40:24 2025 -0700

    testcase: Add testcase for already fixed PR [PR118476]
    
    This testcase was fixed by r15-3052-gc7b76a076cb2c6ded but is
    a testcase that failed in a different fashion and a much older
    failure than the one added with r15-3052.
    
    Pushed as obvious after a quick test.
    
            PR tree-optimization/118476
    
    gcc/testsuite/ChangeLog:
    
            * gcc.dg/torture/pr118476-1.c: New test.
    
    Signed-off-by: Andrew Pinski <quic_apin...@quicinc.com>

Diff:
---
 gcc/testsuite/gcc.dg/torture/pr118476-1.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/gcc/testsuite/gcc.dg/torture/pr118476-1.c 
b/gcc/testsuite/gcc.dg/torture/pr118476-1.c
new file mode 100644
index 000000000000..33509403b61a
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr118476-1.c
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+
+/* PR tree-optimization/118476 */
+
+typedef unsigned long long poly64x1 
__attribute__((__vector_size__(1*sizeof(long long))));
+
+poly64x1 vext_p64(poly64x1 a, poly64x1 b, const int n)
+{
+  poly64x1 r = a;
+  unsigned src = (unsigned)n;
+  long long t = b[0];
+  r[0] = (src < 1) ? a[src] : t;
+  return r;
+}