bsmith updated this revision to Diff 387900.
bsmith added a comment.
- Use more brute force approach to ensure ordering is accounted for
- This massively simplifies things and removes what was becoming very
confusing logic
- Add tests for missing cases
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D113776/new/
https://reviews.llvm.org/D113776
Files:
clang/lib/Driver/ToolChains/Arch/AArch64.cpp
clang/test/Driver/aarch64-cpus.c
clang/test/Driver/aarch64-implied-sve-features.c
llvm/include/llvm/Support/AArch64TargetParser.def
llvm/unittests/Support/TargetParserTest.cpp
Index: llvm/unittests/Support/TargetParserTest.cpp
===================================================================
--- llvm/unittests/Support/TargetParserTest.cpp
+++ llvm/unittests/Support/TargetParserTest.cpp
@@ -903,11 +903,11 @@
AArch64::AEK_SIMD | AArch64::AEK_RAS |
AArch64::AEK_LSE | AArch64::AEK_RDM |
AArch64::AEK_RCPC | AArch64::AEK_DOTPROD |
- AArch64::AEK_SVE2 | AArch64::AEK_BF16 |
- AArch64::AEK_I8MM | AArch64::AEK_SVE2BITPERM |
- AArch64::AEK_PAUTH | AArch64::AEK_MTE |
- AArch64::AEK_SSBS | AArch64::AEK_FP16FML |
- AArch64::AEK_SB,
+ AArch64::AEK_BF16 | AArch64::AEK_I8MM |
+ AArch64::AEK_SVE | AArch64::AEK_SVE2 |
+ AArch64::AEK_SVE2BITPERM | AArch64::AEK_PAUTH |
+ AArch64::AEK_MTE | AArch64::AEK_SSBS |
+ AArch64::AEK_FP16FML | AArch64::AEK_SB,
"9-A"),
ARMCPUTestParams("cortex-a57", "armv8-a", "crypto-neon-fp-armv8",
AArch64::AEK_CRC | AArch64::AEK_CRYPTO |
@@ -1012,12 +1012,12 @@
AArch64::AEK_CRC | AArch64::AEK_FP |
AArch64::AEK_SIMD | AArch64::AEK_RAS |
AArch64::AEK_LSE | AArch64::AEK_RDM |
- AArch64::AEK_RCPC | AArch64::AEK_SVE2 |
- AArch64::AEK_DOTPROD | AArch64::AEK_MTE |
- AArch64::AEK_PAUTH | AArch64::AEK_I8MM |
- AArch64::AEK_BF16 | AArch64::AEK_SVE2BITPERM |
- AArch64::AEK_SSBS | AArch64::AEK_SB |
- AArch64::AEK_FP16FML,
+ AArch64::AEK_RCPC | AArch64::AEK_DOTPROD |
+ AArch64::AEK_MTE | AArch64::AEK_PAUTH |
+ AArch64::AEK_I8MM | AArch64::AEK_BF16 |
+ AArch64::AEK_SVE | AArch64::AEK_SVE2 |
+ AArch64::AEK_SVE2BITPERM | AArch64::AEK_SSBS |
+ AArch64::AEK_SB | AArch64::AEK_FP16FML,
"9-A"),
ARMCPUTestParams("cyclone", "armv8-a", "crypto-neon-fp-armv8",
AArch64::AEK_NONE | AArch64::AEK_CRYPTO |
Index: llvm/include/llvm/Support/AArch64TargetParser.def
===================================================================
--- llvm/include/llvm/Support/AArch64TargetParser.def
+++ llvm/include/llvm/Support/AArch64TargetParser.def
@@ -145,9 +145,10 @@
AARCH64_CPU_NAME("cortex-a55", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
(AArch64::AEK_FP16 | AArch64::AEK_DOTPROD | AArch64::AEK_RCPC))
AARCH64_CPU_NAME("cortex-a510", ARMV9A, FK_NEON_FP_ARMV8, false,
- (AArch64::AEK_BF16 | AArch64::AEK_I8MM | AArch64::AEK_SVE2BITPERM |
+ (AArch64::AEK_BF16 | AArch64::AEK_I8MM | AArch64::AEK_SB |
AArch64::AEK_PAUTH | AArch64::AEK_MTE | AArch64::AEK_SSBS |
- AArch64::AEK_SB | AArch64::AEK_FP16FML))
+ AArch64::AEK_SVE | AArch64::AEK_SVE2 | AArch64::AEK_SVE2BITPERM |
+ AArch64::AEK_FP16FML))
AARCH64_CPU_NAME("cortex-a57", ARMV8A, FK_CRYPTO_NEON_FP_ARMV8, false,
(AArch64::AEK_CRC))
AARCH64_CPU_NAME("cortex-a65", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
@@ -184,8 +185,9 @@
AArch64::AEK_SSBS))
AARCH64_CPU_NAME("cortex-x2", ARMV9A, FK_NEON_FP_ARMV8, false,
(AArch64::AEK_MTE | AArch64::AEK_BF16 | AArch64::AEK_I8MM |
- AArch64::AEK_PAUTH | AArch64::AEK_SSBS | AArch64::AEK_SVE2BITPERM |
- AArch64::AEK_SB | AArch64::AEK_FP16FML))
+ AArch64::AEK_PAUTH | AArch64::AEK_SSBS | AArch64::AEK_SB |
+ AArch64::AEK_SVE | AArch64::AEK_SVE2 | AArch64::AEK_SVE2BITPERM |
+ AArch64::AEK_FP16FML))
AARCH64_CPU_NAME("neoverse-e1", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
(AArch64::AEK_DOTPROD | AArch64::AEK_FP16 | AArch64::AEK_RAS |
AArch64::AEK_RCPC | AArch64::AEK_SSBS))
Index: clang/test/Driver/aarch64-implied-sve-features.c
===================================================================
--- /dev/null
+++ clang/test/Driver/aarch64-implied-sve-features.c
@@ -0,0 +1,78 @@
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve %s -### |& FileCheck %s --check-prefix=SVE-ONLY
+// SVE-ONLY: "-target-feature" "+sve"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+nosve %s -### |& FileCheck %s --check-prefix=NOSVE
+// NOSVE: "-target-feature" "-sve"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve+nosve %s -### |& FileCheck %s --check-prefix=SVE-REVERT
+// SVE-REVERT-NOT: "-target-feature" "+sve"
+// SVE-REVERT: "-target-feature" "-sve"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2 %s -### |& FileCheck %s --check-prefix=SVE2-IMPLY
+// SVE2-IMPLY: "-target-feature" "+sve2" "-target-feature" "+sve"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2+nosve2 %s -### |& FileCheck %s --check-prefix=SVE2-REVERT
+// SVE2-REVERT: "-target-feature" "+sve" "-target-feature" "-sve2"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2+nosve %s -### |& FileCheck %s --check-prefix=SVE2-CONFLICT
+// SVE2-CONFLICT: "-target-feature" "-sve" "-target-feature" "-sve2" "-target-feature" "-sve2-bitperm" "-target-feature" "-sve2-sha3" "-target-feature" "-sve2-aes" "-target-feature" "-sve2-sm4"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+nosve+sve2 %s -### |& FileCheck %s --check-prefix=SVE2-CONFLICT-REV
+// SVE2-CONFLICT-REV: "-target-feature" "+sve2" "-target-feature" "+sve"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve+sve2 %s -### |& FileCheck %s --check-prefix=SVE-SVE2
+// SVE-SVE2: "-target-feature" "+sve2" "-target-feature" "+sve"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2-bitperm %s -### |& FileCheck %s --check-prefix=SVE2-BITPERM
+// SVE2-BITPERM: "-target-feature" "+sve2-bitperm" "-target-feature" "+sve" "-target-feature" "+sve2"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+nosve2-bitperm %s -### |& FileCheck %s --check-prefix=NOSVE2-BITPERM
+// NOSVE2-BITPERM-NOT: "-target-feature" "+sve2-bitperm"
+// NOSVE2-BITPERM-NOT: "-target-feature" "+sve2"
+// NOSVE2-BITPERM-NOT: "-target-feature" "+sve"
+// NOSVE2-BITPERM: "-target-feature" "-sve2-bitperm"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2-bitperm+nosve2-bitperm %s -### |& FileCheck %s --check-prefix=SVE2-BITPERM-REVERT
+// SVE2-BITPERM-REVERT: "-target-feature" "+sve" "-target-feature" "+sve2" "-target-feature" "-sve2-bitperm"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2-aes+nosve2-aes %s -### |& FileCheck %s --check-prefix=SVE2-AES-REVERT
+// SVE2-AES-REVERT: "-target-feature" "+sve" "-target-feature" "+sve2" "-target-feature" "-sve2-aes"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2-sha3+nosve2-sha3 %s -### |& FileCheck %s --check-prefix=SVE2-SHA3-REVERT
+// SVE2-SHA3-REVERT: "-target-feature" "+sve" "-target-feature" "+sve2" "-target-feature" "-sve2-sha3"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2-sm4+nosve2-sm4 %s -### |& FileCheck %s --check-prefix=SVE2-SM4-REVERT
+// SVE2-SM4-REVERT: "-target-feature" "+sve" "-target-feature" "+sve2" "-target-feature" "-sve2-sm4"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2-sha3 %s -### |& FileCheck %s --check-prefix=SVE2-SHA3
+// SVE2-SHA3: "-target-feature" "+sve2-sha3" "-target-feature" "+sve" "-target-feature" "+sve2"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2-aes %s -### |& FileCheck %s --check-prefix=SVE2-AES
+// SVE2-AES: "-target-feature" "+sve2-aes" "-target-feature" "+sve" "-target-feature" "+sve2"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2-sm4 %s -### |& FileCheck %s --check-prefix=SVE2-SM4
+// SVE2-SM4: "-target-feature" "+sve2-sm4" "-target-feature" "+sve" "-target-feature" "+sve2"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2-bitperm+nosve2-aes %s -### |& FileCheck %s --check-prefix=SVE2-SUBFEATURE-MIX
+// SVE2-SUBFEATURE-MIX: "-target-feature" "+sve2-bitperm" "-target-feature" "+sve" "-target-feature" "+sve2" "-target-feature" "-sve2-aes"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2-sm4+nosve2 %s -### |& FileCheck %s --check-prefix=SVE2-SUBFEATURE-CONFLICT
+// SVE2-SUBFEATURE-CONFLICT: "-target-feature" "+sve" "-target-feature" "-sve2" "-target-feature" "-sve2-bitperm" "-target-feature" "-sve2-sha3" "-target-feature" "-sve2-aes" "-target-feature" "-sve2-sm4"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+sve2-aes+nosve %s -### |& FileCheck %s --check-prefix=SVE-SUBFEATURE-CONFLICT
+// SVE-SUBFEATURE-CONFLICT-NOT: "-target-feature" "+sve2-aes"
+// SVE-SUBFEATURE-CONFLICT-NOT: "-target-feature" "+sve2"
+// SVE-SUBFEATURE-CONFLICT-NOT: "-target-feature" "+sve"
+
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+nosve+sve2-aes %s -### |& FileCheck %s --check-prefix=SVE-SUBFEATURE-CONFLICT-REV
+// SVE-SUBFEATURE-CONFLICT-REV: "-target-feature" "-sve2-bitperm" "-target-feature" "-sve2-sha3" "-target-feature" "-sve2-sm4" "-target-feature" "+sve2-aes" "-target-feature" "+sve" "-target-feature" "+sve2"
+
+// RUN: %clang -target aarch64-linux-gnu -mcpu=neoverse-n2+nosve2 %s -### |& FileCheck %s --check-prefix=SVE-MCPU-FEATURES
+// SVE-MCPU-FEATURES-NOT: "-target-feature" "+sve2-bitperm"
+// SVE-MCPU-FEATURES-NOT: "-target-feature" "+sve2"
+// SVE-MCPU-FEATURES: "-target-feature" "+sve"
+
+// RUN: %clang -target aarch64-linux-gnu -mcpu=neoverse-n2+nosve+sve2 %s -### |& FileCheck %s --check-prefix=SVE-MCPU-FEATURES-CONFLICT
+// SVE-MCPU-FEATURES-CONFLICT-NOT: "-target-feature" "+sve2-bitperm"
+// SVE-MCPU-FEATURES-CONFLICT: "-target-feature" "+sve2"
+// SVE-MCPU-FEATURES-CONFLICT: "-target-feature" "+sve"
Index: clang/test/Driver/aarch64-cpus.c
===================================================================
--- clang/test/Driver/aarch64-cpus.c
+++ clang/test/Driver/aarch64-cpus.c
@@ -800,7 +800,7 @@
// RUN: %clang -target aarch64 -mlittle-endian -march=armv9-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A %s
// RUN: %clang -target aarch64_be -mlittle-endian -march=armv9a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A %s
// RUN: %clang -target aarch64_be -mlittle-endian -march=armv9-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A %s
-// GENERICV9A: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9a" "-target-feature" "+sve2"
+// GENERICV9A: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9a" "-target-feature" "+sve" "-target-feature" "+sve2"
// SVE2 is enabled by default on Armv9-A but it can be disabled
// RUN: %clang -target aarch64 -march=armv9a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
@@ -809,7 +809,7 @@
// RUN: %clang -target aarch64 -mlittle-endian -march=armv9-a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
// RUN: %clang -target aarch64_be -mlittle-endian -march=armv9a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
// RUN: %clang -target aarch64_be -mlittle-endian -march=armv9-a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
-// GENERICV9A-NOSVE2: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9a" "-target-feature" "-sve2"
+// GENERICV9A-NOSVE2: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9a" "-target-feature" "+sve" "-target-feature" "-sve2"
// RUN: %clang -target aarch64_be -march=armv9a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-BE %s
// RUN: %clang -target aarch64_be -march=armv9-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-BE %s
@@ -817,7 +817,7 @@
// RUN: %clang -target aarch64 -mbig-endian -march=armv9-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-BE %s
// RUN: %clang -target aarch64_be -mbig-endian -march=armv9a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-BE %s
// RUN: %clang -target aarch64_be -mbig-endian -march=armv9-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-BE %s
-// GENERICV9A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9a" "-target-feature" "+sve2"
+// GENERICV9A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9a" "-target-feature" "+sve" "-target-feature" "+sve2"
// RUN: %clang -target aarch64 -march=armv9.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV91A %s
// RUN: %clang -target aarch64 -march=armv9.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV91A %s
@@ -825,7 +825,7 @@
// RUN: %clang -target aarch64 -mlittle-endian -march=armv9.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV91A %s
// RUN: %clang -target aarch64_be -mlittle-endian -march=armv9.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV91A %s
// RUN: %clang -target aarch64_be -mlittle-endian -march=armv9.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV91A %s
-// GENERICV91A: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9.1a" "-target-feature" "+sve2"
+// GENERICV91A: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9.1a" "-target-feature" "+i8mm" "-target-feature" "+bf16" "-target-feature" "+sve" "-target-feature" "+sve2"
// RUN: %clang -target aarch64_be -march=armv9.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV91A-BE %s
// RUN: %clang -target aarch64_be -march=armv9.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV91A-BE %s
@@ -833,7 +833,7 @@
// RUN: %clang -target aarch64 -mbig-endian -march=armv9.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV91A-BE %s
// RUN: %clang -target aarch64_be -mbig-endian -march=armv9.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV91A-BE %s
// RUN: %clang -target aarch64_be -mbig-endian -march=armv9.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV91A-BE %s
-// GENERICV91A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9.1a" "-target-feature" "+sve2"
+// GENERICV91A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9.1a" "-target-feature" "+i8mm" "-target-feature" "+bf16" "-target-feature" "+sve" "-target-feature" "+sve2"
// RUN: %clang -target aarch64 -march=armv9.2a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV92A %s
// RUN: %clang -target aarch64 -march=armv9.2-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV92A %s
@@ -841,7 +841,7 @@
// RUN: %clang -target aarch64 -mlittle-endian -march=armv9.2-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV92A %s
// RUN: %clang -target aarch64_be -mlittle-endian -march=armv9.2a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV92A %s
// RUN: %clang -target aarch64_be -mlittle-endian -march=armv9.2-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV92A %s
-// GENERICV92A: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9.2a" "-target-feature" "+sve2"
+// GENERICV92A: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9.2a" "-target-feature" "+i8mm" "-target-feature" "+bf16" "-target-feature" "+sve" "-target-feature" "+sve2"
// RUN: %clang -target aarch64_be -march=armv9.2a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV92A-BE %s
// RUN: %clang -target aarch64_be -march=armv9.2-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV92A-BE %s
@@ -849,7 +849,7 @@
// RUN: %clang -target aarch64 -mbig-endian -march=armv9.2-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV92A-BE %s
// RUN: %clang -target aarch64_be -mbig-endian -march=armv9.2a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV92A-BE %s
// RUN: %clang -target aarch64_be -mbig-endian -march=armv9.2-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV92A-BE %s
-// GENERICV92A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9.2a" "-target-feature" "+sve2"
+// GENERICV92A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9.2a" "-target-feature" "+i8mm" "-target-feature" "+bf16" "-target-feature" "+sve" "-target-feature" "+sve2"
// fullfp16 is off by default for v8a, feature must not be mentioned
// RUN: %clang -target aarch64 -march=armv8a -### -c %s 2>&1 | FileCheck -check-prefix=V82ANOFP16 -check-prefix=GENERIC %s
Index: clang/lib/Driver/ToolChains/Arch/AArch64.cpp
===================================================================
--- clang/lib/Driver/ToolChains/Arch/AArch64.cpp
+++ clang/lib/Driver/ToolChains/Arch/AArch64.cpp
@@ -79,6 +79,25 @@
else
return false;
+ if (Feature == "sve2")
+ Features.push_back("+sve");
+ else if (Feature == "sve2-bitperm" || Feature == "sve2-sha3" ||
+ Feature == "sve2-aes" || Feature == "sve2-sm4") {
+ Features.push_back("+sve");
+ Features.push_back("+sve2");
+ } else if (Feature == "nosve") {
+ Features.push_back("-sve2");
+ Features.push_back("-sve2-bitperm");
+ Features.push_back("-sve2-sha3");
+ Features.push_back("-sve2-aes");
+ Features.push_back("-sve2-sm4");
+ } else if (Feature == "nosve2") {
+ Features.push_back("-sve2-bitperm");
+ Features.push_back("-sve2-sha3");
+ Features.push_back("-sve2-aes");
+ Features.push_back("-sve2-sm4");
+ }
+
// +sve implies +f32mm if the base architecture is v8.6A, v8.7A, v9.1A or
// v9.2A. It isn't the case in general that sve implies both f64mm and f32mm
if ((ArchKind == llvm::AArch64::ArchKind::ARMV8_6A ||
@@ -130,8 +149,20 @@
llvm::AArch64::ArchKind ArchKind = llvm::AArch64::parseArch(Split.first);
if (ArchKind == llvm::AArch64::ArchKind::INVALID ||
- !llvm::AArch64::getArchFeatures(ArchKind, Features) ||
- (Split.second.size() &&
+ !llvm::AArch64::getArchFeatures(ArchKind, Features))
+ return false;
+
+ // Enable SVE2 by default on Armv9-A.
+ // It can still be disabled if +nosve2 is present.
+ // We must do this early so that DecodeAArch64Features has the correct state
+ if ((ArchKind == llvm::AArch64::ArchKind::ARMV9A ||
+ ArchKind == llvm::AArch64::ArchKind::ARMV9_1A ||
+ ArchKind == llvm::AArch64::ArchKind::ARMV9_2A)) {
+ Features.push_back("+sve");
+ Features.push_back("+sve2");
+ }
+
+ if ((Split.second.size() &&
!DecodeAArch64Features(D, Split.second, Features, ArchKind)))
return false;
@@ -419,14 +450,6 @@
if (Pos != std::end(Features))
Pos = Features.insert(std::next(Pos), {"+i8mm", "+bf16"});
- // Enable SVE2 by default on Armv9-A.
- // It can still be disabled if +nosve2 is present.
- const char *SVE2Archs[] = {"+v9a", "+v9.1a", "+v9.2a"};
- Pos = std::find_first_of(Features.begin(), Features.end(),
- std::begin(SVE2Archs), std::end(SVE2Archs));
- if (Pos != Features.end())
- Features.insert(++Pos, "+sve2");
-
if (Arg *A = Args.getLastArg(options::OPT_mno_unaligned_access,
options::OPT_munaligned_access)) {
if (A->getOption().matches(options::OPT_mno_unaligned_access))
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