[X86] Remove the DeprecatedMPX feature flag.
We deprecated mpx feature in 10.0. I left this feature flag
in case someone still had IR files containing the feature
in a target-feature attribute. At the time I think I thought it
would fail the test if the feature couldn't be found. Further
review suggests that at worst it prints a message to
stderr about ignoring the feature.
GitOrigin-RevId: ebe5f17f9c396f14742a7c747951b65eaada158e
diff --git a/lib/Target/X86/X86.td b/lib/Target/X86/X86.td
index d322514..70954cb 100644
--- a/lib/Target/X86/X86.td
+++ b/lib/Target/X86/X86.td
@@ -244,11 +244,6 @@
"Enable Cache Demote">;
def FeaturePTWRITE : SubtargetFeature<"ptwrite", "HasPTWRITE", "true",
"Support ptwrite instruction">;
-// FIXME: This feature is deprecated in 10.0 and should not be used for
-// anything, but removing it would break IR files that may contain it in a
-// target-feature attribute.
-def FeatureDeprecatedMPX : SubtargetFeature<"mpx", "DeprecatedHasMPX", "false",
- "Deprecated. Support MPX instructions">;
def FeatureAMXTILE : SubtargetFeature<"amx-tile", "HasAMXTILE", "true",
"Support AMX-TILE instructions">;
def FeatureAMXINT8 : SubtargetFeature<"amx-int8", "HasAMXINT8", "true",
diff --git a/lib/Target/X86/X86Subtarget.h b/lib/Target/X86/X86Subtarget.h
index 0479e94..b48f5f4 100644
--- a/lib/Target/X86/X86Subtarget.h
+++ b/lib/Target/X86/X86Subtarget.h
@@ -366,9 +366,6 @@
/// Processor has AVX-512 vp2intersect instructions
bool HasVP2INTERSECT = false;
- /// Deprecated flag for MPX instructions.
- bool DeprecatedHasMPX = false;
-
/// Processor supports CET SHSTK - Control-Flow Enforcement Technology
/// using Shadow Stack
bool HasSHSTK = false;
