[LLVM][AArch64][Assembly]: Add FAMINMAX assembly/disasse… (#70115)

…mbly.

This patch adds the feature flag FAMINMAX and the assembly/disassembly
for the following instructions of NEON, SVE2 and SME2:
* NEON:
  - FAMIN
  - FAMAX
* SVE2:
  - FAMIN_ZPmZ
  - FAMAX_ZPmZ
* SME2:
  - FAMAX_2Z2Z
  - FAMIN_2Z2Z
  - FAMAX_4Z4Z
  - FAMIN_4Z4Z

That is according to this documentation:
https://developer.arm.com/documentation/ddi0602/2023-09

Co-authored-by: Caroline Concatto <caroline.concatto@arm.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/unittests/TargetParser/TargetParserTest.cpp b/llvm/unittests/TargetParser/TargetParserTest.cpp
index b662fbe..45f39a6 100644
--- a/llvm/unittests/TargetParser/TargetParserTest.cpp
+++ b/llvm/unittests/TargetParser/TargetParserTest.cpp
@@ -1732,7 +1732,7 @@ TEST(TargetParserTest, AArch64ExtensionFeatures) {
       AArch64::AEK_RCPC3,   AArch64::AEK_THE,       AArch64::AEK_D128,
       AArch64::AEK_LSE128,  AArch64::AEK_SPECRES2,  AArch64::AEK_RASv2,
       AArch64::AEK_ITE,     AArch64::AEK_GCS,       AArch64::AEK_FPMR,
-      AArch64::AEK_FP8};
+      AArch64::AEK_FP8,     AArch64::AEK_FAMINMAX};
 
   std::vector<StringRef> Features;
 
@@ -1806,6 +1806,7 @@ TEST(TargetParserTest, AArch64ExtensionFeatures) {
   EXPECT_TRUE(llvm::is_contained(Features, "+gcs"));
   EXPECT_TRUE(llvm::is_contained(Features, "+fpmr"));
   EXPECT_TRUE(llvm::is_contained(Features, "+fp8"));
+  EXPECT_TRUE(llvm::is_contained(Features, "+faminmax"));
 
   // Assuming we listed every extension above, this should produce the same
   // result. (note that AEK_NONE doesn't have a name so it won't be in the
@@ -1931,6 +1932,7 @@ TEST(TargetParserTest, AArch64ArchExtFeature) {
       {"gcs", "nogcs", "+gcs", "-gcs"},
       {"fpmr", "nofpmr", "+fpmr", "-fpmr"},
       {"fp8", "nofp8", "+fp8", "-fp8"},
+      {"faminmax", "nofaminmax", "+faminmax", "-faminmax"},
   };
 
   for (unsigned i = 0; i < std::size(ArchExt); i++) {