[AArch64] Add support for ls64 to the .arch_extension asm directive

This adds support for the 'ls64' AArch64 extension to the `.arch_extension`
asm directive.

Reviewed By: ostannard

Differential Revision: https://reviews.llvm.org/D92574

diff --git a/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp b/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
index 069bb5e..26e093b 100644 (file)
--- a/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
+++ b/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
@@ -2912,6 +2912,7 @@ static const struct Extension {
     {"sve2-sm4", {AArch64::FeatureSVE2SM4}},
     {"sve2-sha3", {AArch64::FeatureSVE2SHA3}},
     {"sve2-bitperm", {AArch64::FeatureSVE2BitPerm}},
+    {"ls64", {AArch64::FeatureLS64}},
     {"xs", {AArch64::FeatureXS}},
     // FIXME: Unsupported extensions
     {"pan", {}},

diff --git a/llvm/test/MC/AArch64/directive-arch_extension-negative.s b/llvm/test/MC/AArch64/directive-arch_extension-negative.s
index 8901247..9d67abb 100644 (file)
--- a/llvm/test/MC/AArch64/directive-arch_extension-negative.s
+++ b/llvm/test/MC/AArch64/directive-arch_extension-negative.s
@@ -83,3 +83,8 @@ dc cvap, x7
 ldapr x0, [x1]
 // CHECK: error: instruction requires: rcpc
 // CHECK-NEXT: ldapr x0, [x1]
+
+.arch_extension nols64
+ld64b x0, [x13]
+// CHECK: error: instruction requires: ls64
+// CHECK-NEXT: ld64b x0, [x13]

diff --git a/llvm/test/MC/AArch64/directive-arch_extension.s b/llvm/test/MC/AArch64/directive-arch_extension.s
index 790bcf3..a44b14d 100644 (file)
--- a/llvm/test/MC/AArch64/directive-arch_extension.s
+++ b/llvm/test/MC/AArch64/directive-arch_extension.s
@@ -67,3 +67,7 @@ dc cvap, x7
 .arch_extension rcpc
 ldapr x0, [x1]
 // CHECK: ldapr x0, [x1]
+
+.arch_extension ls64
+ld64b x0, [x13]
+// CHECK: ld64b x0, [x13]