From: H.J. Lu <hjl.tools@gmail.com>
Date: Sun, 6 Jun 2021 12:36:23 +0000 (-0700)
Subject: libgomp: Compile tests with -march=i486 only if needed
X-Git-Tag: basepoints/gcc-13~6970
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c8d581bdf731714977b1592e74d05e000535e338;p=thirdparty%2Fgcc.git

libgomp: Compile tests with -march=i486 only if needed

Don't add -march=i486 if atomic compare-and-swap is supported on 'int'.
This fixes libgomp tests with "-march=x86-64 -m32 -fcf-protection".

	* testsuite/lib/libgomp.exp (libgomp_init): Don't add -march=i486
	if atomic compare-and-swap is supported on 'int'.
---

diff --git a/libgomp/testsuite/lib/libgomp.exp b/libgomp/testsuite/lib/libgomp.exp
index 45c78d8510e9..a2050151e84b 100644
--- a/libgomp/testsuite/lib/libgomp.exp
+++ b/libgomp/testsuite/lib/libgomp.exp
@@ -210,7 +210,8 @@ proc libgomp_init { args } {
 
     # We use atomic operations in the testcases to validate results.
     if { ([istarget i?86-*-*] || [istarget x86_64-*-*])
-	 && [check_effective_target_ia32] } {
+	 && [check_effective_target_ia32]
+	 && ![check_effective_target_cas_char] } {
 	lappend ALWAYS_CFLAGS "additional_flags=-march=i486"
     }