[PATCH] D105566: [AArch64][SME] Support .arch and .arch_extension assembler directives

[Cullen Rhodes via Phabricator via llvm-commits]

c-rhodes created this revision.
Herald added subscribers: danielkiss, hiraditya, kristof.beyls.
c-rhodes requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D105566

Files:
  llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
  llvm/test/MC/AArch64/SME/directives-negative.s
  llvm/test/MC/AArch64/SME/directives.s


Index: llvm/test/MC/AArch64/SME/directives.s
===================================================================
--- /dev/null
+++ llvm/test/MC/AArch64/SME/directives.s
@@ -0,0 +1,12 @@
+// RUN: llvm-mc -triple=aarch64 < %s | FileCheck %s
+
+.arch_extension sme
+
+smstart
+// CHECK: smstart
+
+.arch_extension nosme
+
+.arch armv8-a+sme
+smstart
+// CHECK: smstart
Index: llvm/test/MC/AArch64/SME/directives-negative.s
===================================================================
--- /dev/null
+++ llvm/test/MC/AArch64/SME/directives-negative.s
@@ -0,0 +1,14 @@
+// RUN: not llvm-mc -triple=aarch64 < %s
+
+.arch_extension sme
+.arch_extension nosme
+
+smstart
+// CHECK: error: instruction requires: sme
+// CHECK-NEXT: smstart
+
+.arch armv8-a+sme
+.arch armv8-a+nosme
+smstart
+// CHECK: error: instruction requires: sme
+// CHECK-NEXT: smstart
Index: llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
===================================================================
--- llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
+++ llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
@@ -3299,6 +3299,7 @@
     {"pauth", {AArch64::FeaturePAuth}},
     {"flagm", {AArch64::FeatureFlagM}},
     {"rme", {AArch64::FeatureRME}},
+    {"sme", {AArch64::FeatureSME}},
     // FIXME: Unsupported extensions
     {"lor", {}},
     {"rdma", {}},


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