forked from OSchip/llvm-project
[AArch64][ARM] Context sensitive meaning of crypto
For AArch64, crypto means: - sm4 + sha3 + sha2 + aes for Armv8.4-A and up, and - sha2 + aes for Armv8.3-A and earlier. For AArch32: Crypto means sha2 + aes, because the Armv8.2-A crypto instructions were added to AArch64 only. Differential Revision: https://reviews.llvm.org/D50179 llvm-svn: 343758
This commit is contained in:
Sjoerd Meijer
parent
a4b7b6dabc
commit
d60540a046
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@ -219,6 +219,87 @@ fp16_fml_fallthrough:
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Features.push_back("+fullfp16");
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}
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// FIXME: this needs reimplementation too after the TargetParser rewrite
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//
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// Context sensitive meaning of Crypto:
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// 1) For Arch >= ARMv8.4a: crypto = sm4 + sha3 + sha2 + aes
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// 2) For Arch <= ARMv8.3a: crypto = sha2 + aes
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const auto ItBegin = Features.begin();
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const auto ItEnd = Features.end();
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const auto ItRBegin = Features.rbegin();
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const auto ItREnd = Features.rend();
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const auto ItRCrypto = std::find(ItRBegin, ItREnd, "+crypto");
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const auto ItRNoCrypto = std::find(ItRBegin, ItREnd, "-crypto");
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const auto HasCrypto = ItRCrypto != ItREnd;
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const auto HasNoCrypto = ItRNoCrypto != ItREnd;
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const ptrdiff_t PosCrypto = ItRCrypto - ItRBegin;
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const ptrdiff_t PosNoCrypto = ItRNoCrypto - ItRBegin;
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bool NoCrypto = false;
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if (HasCrypto && HasNoCrypto) {
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if (PosNoCrypto < PosCrypto)
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NoCrypto = true;
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}
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if (std::find(ItBegin, ItEnd, "+v8.4a") != ItEnd) {
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if (HasCrypto && !NoCrypto) {
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// Check if we have NOT disabled an algorithm with something like:
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// +crypto, -algorithm
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// And if "-algorithm" does not occur, we enable that crypto algorithm.
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const bool HasSM4 = (std::find(ItBegin, ItEnd, "-sm4") == ItEnd);
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const bool HasSHA3 = (std::find(ItBegin, ItEnd, "-sha3") == ItEnd);
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const bool HasSHA2 = (std::find(ItBegin, ItEnd, "-sha2") == ItEnd);
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const bool HasAES = (std::find(ItBegin, ItEnd, "-aes") == ItEnd);
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if (HasSM4)
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Features.push_back("+sm4");
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if (HasSHA3)
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Features.push_back("+sha3");
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if (HasSHA2)
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Features.push_back("+sha2");
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if (HasAES)
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Features.push_back("+aes");
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} else if (HasNoCrypto) {
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// Check if we have NOT enabled a crypto algorithm with something like:
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// -crypto, +algorithm
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// And if "+algorithm" does not occur, we disable that crypto algorithm.
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const bool HasSM4 = (std::find(ItBegin, ItEnd, "+sm4") != ItEnd);
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const bool HasSHA3 = (std::find(ItBegin, ItEnd, "+sha3") != ItEnd);
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const bool HasSHA2 = (std::find(ItBegin, ItEnd, "+sha2") != ItEnd);
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const bool HasAES = (std::find(ItBegin, ItEnd, "+aes") != ItEnd);
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if (!HasSM4)
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Features.push_back("-sm4");
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if (!HasSHA3)
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Features.push_back("-sha3");
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if (!HasSHA2)
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Features.push_back("-sha2");
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if (!HasAES)
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Features.push_back("-aes");
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}
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} else {
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if (HasCrypto && !NoCrypto) {
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const bool HasSHA2 = (std::find(ItBegin, ItEnd, "-sha2") == ItEnd);
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const bool HasAES = (std::find(ItBegin, ItEnd, "-aes") == ItEnd);
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if (HasSHA2)
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Features.push_back("+sha2");
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if (HasAES)
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Features.push_back("+aes");
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} else if (HasNoCrypto) {
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const bool HasSHA2 = (std::find(ItBegin, ItEnd, "+sha2") != ItEnd);
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const bool HasAES = (std::find(ItBegin, ItEnd, "+aes") != ItEnd);
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const bool HasV82a = (std::find(ItBegin, ItEnd, "+v8.2a") != ItEnd);
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const bool HasV83a = (std::find(ItBegin, ItEnd, "+v8.3a") != ItEnd);
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const bool HasV84a = (std::find(ItBegin, ItEnd, "+v8.4a") != ItEnd);
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if (!HasSHA2)
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Features.push_back("-sha2");
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if (!HasAES)
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Features.push_back("-aes");
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if (HasV82a || HasV83a || HasV84a) {
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Features.push_back("-sm4");
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Features.push_back("-sha3");
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}
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}
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}
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if (Arg *A = Args.getLastArg(options::OPT_mno_unaligned_access,
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options::OPT_munaligned_access))
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if (A->getOption().matches(options::OPT_mno_unaligned_access))
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@ -444,6 +444,26 @@ fp16_fml_fallthrough:
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Features.push_back("-crc");
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}
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// For Arch >= ARMv8.0: crypto = sha2 + aes
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// FIXME: this needs reimplementation after the TargetParser rewrite
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if (ArchName.find_lower("armv8a") != StringRef::npos ||
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ArchName.find_lower("armv8.1a") != StringRef::npos ||
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ArchName.find_lower("armv8.2a") != StringRef::npos ||
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ArchName.find_lower("armv8.3a") != StringRef::npos ||
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ArchName.find_lower("armv8.4a") != StringRef::npos) {
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if (ArchName.find_lower("+crypto") != StringRef::npos) {
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if (ArchName.find_lower("+nosha2") == StringRef::npos)
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Features.push_back("+sha2");
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if (ArchName.find_lower("+noaes") == StringRef::npos)
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Features.push_back("+aes");
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} else if (ArchName.find_lower("-crypto") != StringRef::npos) {
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if (ArchName.find_lower("+sha2") == StringRef::npos)
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Features.push_back("-sha2");
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if (ArchName.find_lower("+aes") == StringRef::npos)
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Features.push_back("-aes");
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}
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}
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// Look for the last occurrence of -mlong-calls or -mno-long-calls. If
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// neither options are specified, see if we are compiling for kernel/kext and
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// decide whether to pass "+long-calls" based on the OS and its version.
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@ -17,3 +17,42 @@
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// RUN: %clang -target arm-none-none-eabi -mcpu=generic+nodsp -march=armv8m.main -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NODSP %s
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// RUN: %clang -target arm-none-none-eabi -mcpu=generic -march=armv8m.main+nodsp -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NODSP %s
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// CHECK-NODSP: "-cc1"{{.*}} "-triple" "thumbv8m.main-{{.*}} "-target-cpu" "generic"{{.*}} "-target-feature" "-dsp"
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// Check that crypto means sha2 + aes:
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//
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// Check +sha2 +aes:
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//
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// RUN: %clang -target arm-arm-none-eabi -march=armv8.2a+sha2+aes -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-SHA2-AES %s
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// CHECK-SHA2-AES: "-cc1"{{.*}} "-triple" "armv8.2a-{{.*}} "-target-cpu" "generic"{{.*}} "-target-feature" "+sha2" "-target-feature" "+aes"
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//
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// Check -sha2 -aes:
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//
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// RUN: %clang -target arm-arm-none-eabi -march=armv8.2a+sha2+nosha2+aes+noaes -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NO-SHA2-AES %s
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// CHECK-NO-SHA2-AES: "-cc1"{{.*}} "-triple" "armv8.2a-{{.*}} "-target-cpu" "generic"{{.*}} "-target-feature" "-sha2" "-target-feature" "-aes"
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//
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// Check +crypto:
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//
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// RUN: %clang -target arm-arm-none-eabi -march=armv8a+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO2 %s
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// RUN: %clang -target arm-arm-none-eabi -march=armv8.1a+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO2 %s
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// RUN: %clang -target arm-arm-none-eabi -march=armv8.2a+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO2 %s
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// RUN: %clang -target arm-arm-none-eabi -march=armv8.3a+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO2 %s
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// RUN: %clang -target arm-arm-none-eabi -march=armv8.4a+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO2 %s
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// CHECK-CRYPTO2: "-cc1"{{.*}} "-target-cpu" "generic"{{.*}} "-target-feature" "+crypto" "-target-feature" "+sha2" "-target-feature" "+aes"
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//
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// Check -crypto:
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//
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// RUN: %clang -target arm-arm-none-eabi -march=armv8.1a+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NOCRYPTO2 %s
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// RUN: %clang -target arm-arm-none-eabi -march=armv8.2a+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NOCRYPTO2 %s
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// RUN: %clang -target arm-arm-none-eabi -march=armv8.3a+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NOCRYPTO2 %s
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// RUN: %clang -target arm-arm-none-eabi -march=armv8.4a+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NOCRYPTO2 %s
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// CHECK-NOCRYPTO2-NOT: "-target-feature" "+crypto" "-target-feature" "+sha2" "-target-feature" "+aes"
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//
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// Check +crypto -sha2 -aes:
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//
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// RUN: %clang -target arm-arm-none-eabi -march=armv8.1a+crypto+nosha2+noaes -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO3 %s
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// CHECK-CRYPTO3-NOT: "-target-feature" "+sha2" "-target-feature" "+aes"
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//
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// Check -crypto +sha2 +aes:
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//
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// RUN: %clang -target arm-arm-none-eabi -march=armv8.1a+nocrypto+sha2+aes -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO4 %s
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// CHECK-CRYPTO4: "-target-feature" "+sha2" "-target-feature" "+aes"
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@ -170,6 +170,101 @@
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// CHECK-MARCH-2: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "-fp-armv8" "-target-feature" "-neon" "-target-feature" "-crc" "-target-feature" "-crypto"
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// CHECK-MARCH-3: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "-neon"
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// Check +sm4:
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//
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// RUN: %clang -target aarch64 -march=armv8.2a+sm4 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-SM4 %s
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// CHECK-SM4: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.2a" "-target-feature" "+sm4"
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//
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// Check +sha3:
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//
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// RUN: %clang -target aarch64 -march=armv8.2a+sha3 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-SHA3 %s
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// CHECK-SHA3: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.2a" "-target-feature" "+sha3"
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//
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// Check +sha2:
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//
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// RUN: %clang -target aarch64 -march=armv8.3a+sha2 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-SHA2 %s
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// CHECK-SHA2: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.{{.}}a" "-target-feature" "+sha2"
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//
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// Check +aes:
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//
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// RUN: %clang -target aarch64 -march=armv8.3a+aes -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-AES %s
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// CHECK-AES: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.{{.}}a" "-target-feature" "+aes"
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//
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// Check -sm4:
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//
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// RUN: %clang -target aarch64 -march=armv8.2a+noSM4 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NO-SM4 %s
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// CHECK-NO-SM4: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.2a" "-target-feature" "-sm4"
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//
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// Check -sha3:
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//
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// RUN: %clang -target aarch64 -march=armv8.2a+noSHA3 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NO-SHA3 %s
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// CHECK-NO-SHA3: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.2a" "-target-feature" "-sha3"
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//
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// Check -sha2:
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//
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// RUN: %clang -target aarch64 -march=armv8.2a+noSHA2 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NO-SHA2 %s
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// CHECK-NO-SHA2: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.2a" "-target-feature" "-sha2"
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//
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// Check -aes:
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//
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// RUN: %clang -target aarch64 -march=armv8.2a+noAES -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NO-AES %s
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// CHECK-NO-AES: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.2a" "-target-feature" "-aes"
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//
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//
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// Arch <= ARMv8.3: crypto = sha2 + aes
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// -------------------------------------
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//
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// Check +crypto:
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//
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// RUN: %clang -target aarch64 -march=armv8a+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO83 %s
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// RUN: %clang -target aarch64 -march=armv8.1a+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO83 %s
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// RUN: %clang -target aarch64 -march=armv8.2a+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO83 %s
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// RUN: %clang -target aarch64 -march=armv8.3a+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO83 %s
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// RUN: %clang -target aarch64 -march=armv8a+crypto+nocrypto+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO83 %s
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// CHECK-CRYPTO83: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+crypto" "-target-feature" "+sha2" "-target-feature" "+aes"
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//
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// Check -crypto:
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//
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// RUN: %clang -target aarch64 -march=armv8a+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NOCRYPTO8A %s
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// RUN: %clang -target aarch64 -march=armv8.1a+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NOCRYPTO81 %s
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// RUN: %clang -target aarch64 -march=armv8.2a+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NOCRYPTO82 %s
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// RUN: %clang -target aarch64 -march=armv8.3a+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NOCRYPTO82 %s
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// RUN: %clang -target aarch64 -march=armv8.3a+nocrypto+crypto+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NOCRYPTO82 %s
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// CHECK-NOCRYPTO8A: "-target-feature" "+neon" "-target-feature" "-crypto" "-target-feature" "-sha2" "-target-feature" "-aes" "-target-abi" "aapcs"
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// CHECK-NOCRYPTO81: "-target-feature" "+neon" "-target-feature" "+v8.1a" "-target-feature" "-crypto" "-target-feature" "-sha2" "-target-feature" "-aes" "-target-abi" "aapcs"
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// CHECK-NOCRYPTO82: "-target-feature" "+neon" "-target-feature" "+v8.{{.}}a" "-target-feature" "-crypto" "-target-feature" "-sha2" "-target-feature" "-aes" "-target-feature" "-sm4" "-target-feature" "-sha3" "-target-abi" "aapcs"
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//
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// Check +crypto -sha2 -aes:
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//
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// RUN: %clang -target aarch64 -march=armv8.1a+crypto+nosha2+noaes -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO83-NOSHA2-NOAES %s
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// CHECK-CRYPTO83-NOSHA2-NOAES-NOT: "-target-feature" "+sha2" "-target-feature" "+aes"
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//
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// Check -crypto +sha2 +aes:
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//
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// RUN: %clang -target aarch64 -march=armv8.1a+nocrypto+sha2+aes -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NOCRYPTO83-SHA2-AES %s
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// CHECK-NOCRYPTO83-SHA2-AES: "-target-feature" "+sha2" "-target-feature" "+aes"
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//
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//
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// Arch >= ARMv8.4: crypto = sm4 + sha3 + sha2 + aes
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// --------------------------------------------------
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//
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// Check +crypto:
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//
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// RUN: %clang -target aarch64 -march=armv8.4a+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO84 %s
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// CHECK-CRYPTO84: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.4a" "-target-feature" "+crypto" "-target-feature" "+sm4" "-target-feature" "+sha3" "-target-feature" "+sha2" "-target-feature" "+aes"
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//
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// Check -crypto:
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//
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// RUN: %clang -target aarch64 -march=armv8.4a+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NOCRYPTO84 %s
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// CHECK-NOCRYPTO84-NOT: "-target-feature" "+crypto" "-target-feature" "+sm4" "-target-feature" "+sha3" "-target-feature" "+sha2" "-target-feature" "+aes"
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//
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// Check +crypto -sm4 -sha3:
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//
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// RUN: %clang -target aarch64 -march=armv8.4a+crypto+sm4+nosm4+sha3+nosha3 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CRYPTO84-NOSMSHA %s
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// CHECK-CRYPTO84-NOSMSHA: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.4a" "-target-feature" "+crypto" "-target-feature" "-sm4" "-target-feature" "-sha3" "-target-feature" "+sha2" "-target-feature" "+aes"
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//
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//
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// RUN: %clang -target aarch64 -mcpu=cyclone+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-1 %s
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// RUN: %clang -target aarch64 -mcpu=cyclone+crypto+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-1 %s
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// RUN: %clang -target aarch64 -mcpu=generic+crc -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-2 %s
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