testsuite: Require lto-plugin in gcc.dg/ipa/ipa-icf-38.c [PR85656]

gcc.dg/ipa/ipa-icf-38.c currently FAILs on Solaris (SPARC and x86, 32
and 64-bit):

FAIL: gcc.dg/ipa/ipa-icf-38.c scan-ltrans-tree-dump-not optimized "Function bar"

As it turns out, this only happens when the Solaris linker is used; with
GNU ld the test PASSes just fine.  In fact, that happens because gld
supports the lto-plugin while ld does not: in a Solaris build with gld,
the test FAILs the same way as with ld when -fno-use-linker-plugin is
passed, so this patch requires linker_plugin.

Tested on i386-pc-solaris2.11 (ld and gld) and x86_64-pc-linux-gnu.

2024-05-15  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	gcc/testsuite:
	PR ipa/85656
	* gcc.dg/ipa/ipa-icf-38.c: Require linker_plugin.

diff --git a/gcc/testsuite/gcc.dg/ipa/ipa-icf-38.c b/gcc/testsuite/gcc.dg/ipa/ipa-icf-38.c
index a8824d040e52a2c6bc15ffbf5509c003b65b3282..74b5e56f9180d5239a19fcb32c1630eedf07d098 100644 (file)
--- a/gcc/testsuite/gcc.dg/ipa/ipa-icf-38.c
+++ b/gcc/testsuite/gcc.dg/ipa/ipa-icf-38.c
@@ -2,6 +2,7 @@
 /* { dg-require-alias "" } */
 /* { dg-options "-O2 -fdump-ipa-icf-optimized -flto -fdump-tree-optimized -fno-ipa-vrp" } */
 /* { dg-require-effective-target lto } */
+/* { dg-require-effective-target linker_plugin } */
 /* { dg-additional-sources "ipa-icf-38a.c" }*/
 
 /* Based on ipa-icf-3.c.  */