i386: -mno-xsave should disable all relevant ISA flags [PR104462]
Commit Message
2022-02-09 Uroš Bizjak <ubizjak@gmail.com>
gcc/ChangeLog:
PR target/104462
* common/config/i386/i386-common.cc (OPTION_MASK_ISA2_XSAVE_UNSET):
Also include OPTION_MASK_ISA2_AVX2_UNSET.
gcc/testsuite/ChangeLog:
PR target/104462
* gcc.target/i386/pr104462.c: New test.
Bootstrapped and regression tested on x86_64-linux-gnu {,-m32}.
Pushed to master.
Uros.
@@ -206,7 +206,8 @@ along with GCC; see the file COPYING3. If not see
(OPTION_MASK_ISA_XSAVE | OPTION_MASK_ISA_XSAVEOPT_UNSET \
| OPTION_MASK_ISA_XSAVES_UNSET | OPTION_MASK_ISA_XSAVEC_UNSET \
| OPTION_MASK_ISA_AVX_UNSET)
-#define OPTION_MASK_ISA2_XSAVE_UNSET OPTION_MASK_ISA2_AMX_TILE_UNSET
+#define OPTION_MASK_ISA2_XSAVE_UNSET \
+ (OPTION_MASK_ISA2_AVX2_UNSET | OPTION_MASK_ISA2_AMX_TILE_UNSET)
#define OPTION_MASK_ISA_XSAVEOPT_UNSET OPTION_MASK_ISA_XSAVEOPT
#define OPTION_MASK_ISA_AVX2_UNSET \
(OPTION_MASK_ISA_AVX2 | OPTION_MASK_ISA_AVX512F_UNSET)
new file mode 100644
@@ -0,0 +1,13 @@
+/* PR target/104462 */
+/* { dg-do compile } */
+/* { dg-options "-mavx512fp16 -mno-xsave" } */
+
+typedef _Float16 __attribute__((__vector_size__ (8))) F;
+
+F f;
+
+void
+foo (void)
+{
+ f *= -f;
+}