[AArch64] Ampere1 does not support MTE

The initial support for the Ampere1 mistakenly signalled support for
the MTE feature.  However, the core does not include the optional MTE
functionality.

Update the target parser to not include MTE for Ampere1.

Reviewed By: dmgreen

Differential Revision: https://reviews.llvm.org/D125191

diff --git a/llvm/include/llvm/Support/AArch64TargetParser.def b/llvm/include/llvm/Support/AArch64TargetParser.def
index bae6fb2..e2f9498 100644 (file)
--- a/llvm/include/llvm/Support/AArch64TargetParser.def
+++ b/llvm/include/llvm/Support/AArch64TargetParser.def
@@ -292,8 +292,7 @@ AARCH64_CPU_NAME("a64fx", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
 AARCH64_CPU_NAME("carmel", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
                  AArch64::AEK_FP16)
 AARCH64_CPU_NAME("ampere1", ARMV8_6A, FK_CRYPTO_NEON_FP_ARMV8, false,
-                 (AArch64::AEK_FP16 | AArch64::AEK_MTE | AArch64::AEK_SB |
-                  AArch64::AEK_SSBS))
+                 (AArch64::AEK_FP16 | AArch64::AEK_SB | AArch64::AEK_SSBS))
 // Invalid CPU
 AARCH64_CPU_NAME("invalid", INVALID, FK_INVALID, true, AArch64::AEK_INVALID)
 #undef AARCH64_CPU_NAME

diff --git a/llvm/unittests/Support/TargetParserTest.cpp b/llvm/unittests/Support/TargetParserTest.cpp
index e9d6a3f..90b9f12 100644 (file)
--- a/llvm/unittests/Support/TargetParserTest.cpp
+++ b/llvm/unittests/Support/TargetParserTest.cpp
@@ -1201,7 +1201,7 @@ INSTANTIATE_TEST_SUITE_P(
                              AArch64::AEK_RDM  | AArch64::AEK_RCPC | AArch64::AEK_DOTPROD |
                              AArch64::AEK_SM4  | AArch64::AEK_SHA3 | AArch64::AEK_BF16    |
                              AArch64::AEK_SHA2 | AArch64::AEK_AES  | AArch64::AEK_I8MM    |
-                             AArch64::AEK_MTE  | AArch64::AEK_SSBS | AArch64::AEK_SB,
+                             AArch64::AEK_SSBS | AArch64::AEK_SB,
                          "8.6-A"),
         ARMCPUTestParams(
             "neoverse-512tvb", "armv8.4-a", "crypto-neon-fp-armv8",