[PATCH] i386: Enable UINTR and HRESET for -march that supports it

[Martin Liška]

Hello.

The patch fixes missing features for -march targets that support
PTA_UINTR and PTA_HRESET.

Patch can bootstrap on x86_64-linux-gnu and survives regression tests.

Ready to be installed?
Thanks,
Martin

gcc/ChangeLog:

	PR target/99463
	* config/i386/i386-options.c (ix86_option_override_internal):
	Enable UINTR and HRESET for -march that supports it.

gcc/testsuite/ChangeLog:

	PR target/99463
	* gcc.target/i386/pr99463-2.c: New test.
	* gcc.target/i386/pr99463.c: New test.
---
  gcc/config/i386/i386-options.c            | 7 +++++++
  gcc/testsuite/gcc.target/i386/pr99463-2.c | 5 +++++
  gcc/testsuite/gcc.target/i386/pr99463.c   | 5 +++++
  3 files changed, 17 insertions(+)
  create mode 100644 gcc/testsuite/gcc.target/i386/pr99463-2.c
  create mode 100644 gcc/testsuite/gcc.target/i386/pr99463.c

diff --git a/gcc/config/i386/i386-options.c b/gcc/config/i386/i386-options.c
index cdeabbfca4b..410fa0cc436 100644
--- a/gcc/config/i386/i386-options.c
+++ b/gcc/config/i386/i386-options.c
@@ -2354,6 +2354,13 @@ ix86_option_override_internal (bool main_args_p,
  	if (((processor_alias_table[i].flags & PTA_PKU) != 0)
  	    && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_PKU))
  	  opts->x_ix86_isa_flags |= OPTION_MASK_ISA_PKU;
+	if (((processor_alias_table[i].flags & PTA_UINTR) != 0)
+	    && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_UINTR))
+	  opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_UINTR;
+	if (((processor_alias_table[i].flags & PTA_HRESET) != 0)
+	    && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_HRESET))
+	  opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_HRESET;
+
  
  	/* Don't enable x87 instructions if only general registers are
  	   allowed by target("general-regs-only") function attribute or
diff --git a/gcc/testsuite/gcc.target/i386/pr99463-2.c b/gcc/testsuite/gcc.target/i386/pr99463-2.c
new file mode 100644
index 00000000000..017ca959510
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr99463-2.c
@@ -0,0 +1,5 @@
+/* PR target/99463 */
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-O2 -march=sapphirerapids" } */
+
+#include "uintr-1.c"
diff --git a/gcc/testsuite/gcc.target/i386/pr99463.c b/gcc/testsuite/gcc.target/i386/pr99463.c
new file mode 100644
index 00000000000..0b290924118
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr99463.c
@@ -0,0 +1,5 @@
+/* PR target/99463 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=alderlake" } */
+
+#include "hreset-1.c"
-- 
2.30.1