[PATCH] x86-64: Check CMPXCHG16B for x86-64-v[234]

H.J. Lu hjl.tools@gmail.com
Fri Oct 9 13:17:31 GMT 2020


x86-64-v2 includes CMPXCHG16B.  Since -mcx16 enables CMPXCHG16B and
defines __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16, check it in x86-64-v[234]
tests.

	PR target/97250
	* gcc.target/i386/x86-64-v2.c: Verify that
	__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 is defined.
	* gcc.target/i386/x86-64-v3.c: Likewise.
	* gcc.target/i386/x86-64-v4.c: Likewise.
---
 gcc/testsuite/gcc.target/i386/x86-64-v2.c | 3 +++
 gcc/testsuite/gcc.target/i386/x86-64-v3.c | 3 +++
 gcc/testsuite/gcc.target/i386/x86-64-v4.c | 3 +++
 3 files changed, 9 insertions(+)

diff --git a/gcc/testsuite/gcc.target/i386/x86-64-v2.c b/gcc/testsuite/gcc.target/i386/x86-64-v2.c
index 0f3df3605b5..f17a15de9b6 100644
--- a/gcc/testsuite/gcc.target/i386/x86-64-v2.c
+++ b/gcc/testsuite/gcc.target/i386/x86-64-v2.c
@@ -12,6 +12,9 @@
 #ifndef __SSE2__
 # error __SSE2__ not defined
 #endif
+#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16
+# error __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 not defined
+#endif
 #ifndef __LAHF_SAHF__
 # error __LAHF_SAHF__ not defined
 #endif
diff --git a/gcc/testsuite/gcc.target/i386/x86-64-v3.c b/gcc/testsuite/gcc.target/i386/x86-64-v3.c
index 16a94b18021..784202fb26f 100644
--- a/gcc/testsuite/gcc.target/i386/x86-64-v3.c
+++ b/gcc/testsuite/gcc.target/i386/x86-64-v3.c
@@ -12,6 +12,9 @@
 #ifndef __SSE2__
 # error __SSE2__ not defined
 #endif
+#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16
+# error __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 not defined
+#endif
 #ifndef __LAHF_SAHF__
 # error __LAHF_SAHF__ not defined
 #endif
diff --git a/gcc/testsuite/gcc.target/i386/x86-64-v4.c b/gcc/testsuite/gcc.target/i386/x86-64-v4.c
index 48e928c2955..7c202a42068 100644
--- a/gcc/testsuite/gcc.target/i386/x86-64-v4.c
+++ b/gcc/testsuite/gcc.target/i386/x86-64-v4.c
@@ -12,6 +12,9 @@
 #ifndef __SSE2__
 # error __SSE2__ not defined
 #endif
+#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16
+# error __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 not defined
+#endif
 #ifndef __LAHF_SAHF__
 # error __LAHF_SAHF__ not defined
 #endif
-- 
2.26.2



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