[PATCH] Skip jit tests for targets that don't support -lgccjit

[H.J. Lu via Gcc-patches]

Since libgccjit.so is linked into jit tests, skip jit tests for targets
that don't support -lgccjit.

OK for master?

H.J.
---
        PR jit/94778
        * jit.dg/jit.exp: Skip jit tests for targets that don't support
        -lgccjit.
        * lib/target-supports.exp (check_effective_target_lgccjit): New.
---
 gcc/testsuite/jit.dg/jit.exp          |  5 +++++
 gcc/testsuite/lib/target-supports.exp | 15 +++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/gcc/testsuite/jit.dg/jit.exp b/gcc/testsuite/jit.dg/jit.exp
index 13e8ab4dbfe..2f54681713b 100644
--- a/gcc/testsuite/jit.dg/jit.exp
+++ b/gcc/testsuite/jit.dg/jit.exp
@@ -38,6 +38,11 @@ load_lib gcc.exp
 load_lib g++.exp
 load_lib dejagnu.exp
 
+# Skip these tests for targets that don't support -lgccjit
+if { ![check_effective_target_lgccjit] } {
+    return
+}
+
 # Look for lines of the form:
 #   definitely lost: 11,316 bytes in 235 blocks
 #   indirectly lost: 352 bytes in 4 blocks
diff --git a/gcc/testsuite/lib/target-supports.exp 
b/gcc/testsuite/lib/target-supports.exp
index 13761491e63..61351738c97 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -10226,3 +10226,18 @@ proc check_effective_target_indirect_calls { } {
   }
   return 1
 }
+
+# Return 1 if we can use the -lgccjit option, 0 otherwise.
+
+proc check_effective_target_lgccjit { } {
+  if { [info procs jit_target_compile] == "" } then {
+    global GCC_UNDER_TEST
+    if ![info exists GCC_UNDER_TEST] {
+      set GCC_UNDER_TEST "[find_gcc]"
+    }
+    proc jit_target_compile { source dest type options } [info body 
gcc_target_compile]
+  }
+  return [check_no_compiler_messages lgccjit executable {
+     int main() { return 0; }
+  } "-lgccjit"]
+}
-- 
2.26.2