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[PowerPC] Add -m[no-]power10-vector clang and llvm option 

Summary: This patch adds command line option for enabling power10-vector support.

Reviewers: hfinkel, nemanjai, lei, amyk, #powerpc

Reviewed By: lei, amyk, #powerpc

Subscribers: wuzish, kbarton, hiraditya, shchenz, cfe-commits, llvm-commits

Tags: #llvm, #clang, #powerpc

Differential Revision: https://reviews.llvm.org/D80758
This commit is contained in:
Ahsan Saghir 2020-06-16 14:39:18 -05:00
parent 08f62ff8ef
commit 37e72f47a4
8 changed files with 49 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
clang/include/clang/Driver/Options.td
View File

@ -2385,6 +2385,10 @@ def mpower9_vector : Flag<["-"], "mpower9-vector">,
Group<m_ppc_Features_Group>;
def mno_power9_vector : Flag<["-"], "mno-power9-vector">,
Group<m_ppc_Features_Group>;
def mpower10_vector : Flag<["-"], "mpower10-vector">,
Group<m_ppc_Features_Group>;
def mno_power10_vector : Flag<["-"], "mno-power10-vector">,
Group<m_ppc_Features_Group>;
def mpower8_crypto : Flag<["-"], "mcrypto">,
Group<m_ppc_Features_Group>;
def mnopower8_crypto : Flag<["-"], "mno-crypto">,

18
clang/lib/Basic/Targets/PPC.cpp
View File

@ -54,6 +54,8 @@ bool PPCTargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
HasFloat128 = true;
} else if (Feature == "+power9-vector") {
HasP9Vector = true;
} else if (Feature == "+power10-vector") {
HasP10Vector = true;
} else if (Feature == "+pcrelative-memops") {
HasPCRelativeMemops = true;
} else if (Feature == "+spe") {
@ -193,6 +195,8 @@ void PPCTargetInfo::getTargetDefines(const LangOptions &Opts,
Builder.defineMacro("__FLOAT128__");
if (HasP9Vector)
Builder.defineMacro("__POWER9_VECTOR__");
if (HasP10Vector)
Builder.defineMacro("__POWER10_VECTOR__");
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
@ -227,6 +231,7 @@ void PPCTargetInfo::getTargetDefines(const LangOptions &Opts,
// - direct-move
// - float128
// - power9-vector
// - power10-vector
// then go ahead and error since the customer has expressed an incompatible
// set of options.
static bool ppcUserFeaturesCheck(DiagnosticsEngine &Diags,
@ -248,6 +253,7 @@ static bool ppcUserFeaturesCheck(DiagnosticsEngine &Diags,
Found |= FindVSXSubfeature("+direct-move", "-mdirect-move");
Found |= FindVSXSubfeature("+float128", "-mfloat128");
Found |= FindVSXSubfeature("+power9-vector", "-mpower9-vector");
Found |= FindVSXSubfeature("+power10-vector", "-mpower10-vector");
// Return false if any vsx subfeatures was found.
return !Found;
@ -348,6 +354,7 @@ bool PPCTargetInfo::initFeatureMap(
void PPCTargetInfo::addP10SpecificFeatures(
llvm::StringMap<bool> &Features) const {
Features["htm"] = false; // HTM was removed for P10.
Features["power10-vector"] = true;
Features["pcrelative-memops"] = true;
return;
}
@ -372,6 +379,7 @@ bool PPCTargetInfo::hasFeature(StringRef Feature) const {
.Case("extdiv", HasExtDiv)
.Case("float128", HasFloat128)
.Case("power9-vector", HasP9Vector)
.Case("power10-vector", HasP10Vector)
.Case("pcrelative-memops", HasPCRelativeMemops)
.Case("spe", HasSPE)
.Default(false);
@ -387,12 +395,15 @@ void PPCTargetInfo::setFeatureEnabled(llvm::StringMap<bool> &Features,
.Case("direct-move", true)
.Case("power8-vector", true)
.Case("power9-vector", true)
.Case("power10-vector", true)
.Case("float128", true)
.Default(false);
if (FeatureHasVSX)
Features["vsx"] = Features["altivec"] = true;
if (Name == "power9-vector")
Features["power8-vector"] = true;
else if (Name == "power10-vector")
Features["power8-vector"] = Features["power9-vector"] = true;
if (Name == "pcrel")
Features["pcrelative-memops"] = true;
else
@ -402,9 +413,12 @@ void PPCTargetInfo::setFeatureEnabled(llvm::StringMap<bool> &Features,
// features.
if ((Name == "altivec") || (Name == "vsx"))
Features["vsx"] = Features["direct-move"] = Features["power8-vector"] =
Features["float128"] = Features["power9-vector"] = false;
Features["float128"] = Features["power9-vector"] =
Features["power10-vector"] = false;
if (Name == "power8-vector")
Features["power9-vector"] = false;
Features["power9-vector"] = Features["power10-vector"] = false;
else if (Name == "power9-vector")
Features["power10-vector"] = false;
if (Name == "pcrel")
Features["pcrelative-memops"] = false;
else

1
clang/lib/Basic/Targets/PPC.h
View File

@ -69,6 +69,7 @@ class LLVM_LIBRARY_VISIBILITY PPCTargetInfo : public TargetInfo {
bool HasExtDiv = false;
bool HasP9Vector = false;
bool HasSPE = false;
bool HasP10Vector = false;
bool HasPCRelativeMemops = false;
protected:

14
clang/test/Driver/ppc-dependent-options.cpp
View File

@ -58,6 +58,14 @@
// RUN: -mcpu=power9 -std=c++11 -mno-vsx -mfloat128 -mpower9-vector %s 2>&1 | \
// RUN: FileCheck %s -check-prefix=CHECK-NVSX-MULTI
// RUN: not %clang -target powerpc64le-unknown-unknown -fsyntax-only \
// RUN: -mcpu=power10 -std=c++11 %s 2>&1 | FileCheck %s \
// RUN: -check-prefix=CHECK-DEFAULT-P10
// RUN: not %clang -target powerpc64le-unknown-unknown -fsyntax-only \
// RUN: -mcpu=power10 -std=c++11 -mno-vsx -mpower10-vector %s 2>&1 | \
// RUN: FileCheck %s -check-prefix=CHECK-NVSX-P10V
#ifdef __VSX__
static_assert(false, "VSX enabled");
#endif
@ -70,6 +78,10 @@ static_assert(false, "P8V enabled");
static_assert(false, "P9V enabled");
#endif
#ifdef __POWER10_VECTOR__
static_assert(false, "P10V enabled");
#endif
#if !defined(__VSX__) && !defined(__POWER8_VECTOR__) && \
!defined(__POWER9_VECTOR__)
static_assert(false, "Neither enabled");
@ -78,8 +90,10 @@ static_assert(false, "Neither enabled");
// CHECK-DEFAULT: VSX enabled
// CHECK-DEFAULT: P8V enabled
// CHECK-DEFAULT-P9: P9V enabled
// CHECK-DEFAULT-P10: P10V enabled
// CHECK-NVSX-P8V: error: option '-mpower8-vector' cannot be specified with '-mno-vsx'
// CHECK-NVSX-P9V: error: option '-mpower9-vector' cannot be specified with '-mno-vsx'
// CHECK-NVSX-P10V: error: option '-mpower10-vector' cannot be specified with '-mno-vsx'
// CHECK-NVSX-FLT128: error: option '-mfloat128' cannot be specified with '-mno-vsx'
// CHECK-NVSX-DMV: error: option '-mdirect-move' cannot be specified with '-mno-vsx'
// CHECK-NVSX-MULTI: error: option '-mfloat128' cannot be specified with '-mno-vsx'

6
clang/test/Driver/ppc-features.cpp
View File

@ -150,6 +150,12 @@
// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-power8-vector -mpower8-vector -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-P8VECTOR %s
// CHECK-P8VECTOR: "-target-feature" "+power8-vector"
// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-power10-vector -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOP10VECTOR %s
// CHECK-NOP10VECTOR: "-target-feature" "-power10-vector"
// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-power10-vector -mpower10-vector -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-P10VECTOR %s
// CHECK-P10VECTOR: "-target-feature" "+power10-vector"
// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-crbits -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOCRBITS %s
// CHECK-NOCRBITS: "-target-feature" "-crbits"

6
llvm/lib/Target/PowerPC/PPC.td
View File

@ -216,6 +216,10 @@ def FeatureP9Vector : SubtargetFeature<"power9-vector", "HasP9Vector", "true",
"Enable POWER9 vector instructions",
[FeatureISA3_0, FeatureP8Vector,
FeatureP9Altivec]>;
def FeatureP10Vector : SubtargetFeature<"power10-vector", "HasP10Vector",
"true",
"Enable POWER10 vector instructions",
[FeatureISA3_1, FeatureP9Vector]>;
// A separate feature for this even though it is equivalent to P9Vector
// because this is a feature of the implementation rather than the architecture
// and may go away with future CPU's.
@ -337,7 +341,7 @@ def ProcessorFeatures {
// still exist with the exception of those we know are Power9 specific.
list<SubtargetFeature> P10AdditionalFeatures =
[DirectivePwr10, FeatureISA3_1, FeaturePrefixInstrs,
FeaturePCRelativeMemops];
FeaturePCRelativeMemops, FeatureP10Vector];
list<SubtargetFeature> P10SpecificFeatures = [];
list<SubtargetFeature> P10InheritableFeatures =
!listconcat(P9InheritableFeatures, P10AdditionalFeatures);

1
llvm/lib/Target/PowerPC/PPCSubtarget.cpp
View File

@ -78,6 +78,7 @@ void PPCSubtarget::initializeEnvironment() {
HasP8Crypto = false;
HasP9Vector = false;
HasP9Altivec = false;
HasP10Vector = false;
HasPrefixInstrs = false;
HasPCRelativeMemops = false;
HasFCPSGN = false;

2
llvm/lib/Target/PowerPC/PPCSubtarget.h
View File

@ -105,6 +105,7 @@ protected:
bool HasP8Crypto;
bool HasP9Vector;
bool HasP9Altivec;
bool HasP10Vector;
bool HasPrefixInstrs;
bool HasPCRelativeMemops;
bool HasFCPSGN;
@ -262,6 +263,7 @@ public:
bool hasP8Crypto() const { return HasP8Crypto; }
bool hasP9Vector() const { return HasP9Vector; }
bool hasP9Altivec() const { return HasP9Altivec; }
bool hasP10Vector() const { return HasP10Vector; }
bool hasPrefixInstrs() const { return HasPrefixInstrs; }
bool hasPCRelativeMemops() const { return HasPCRelativeMemops; }
bool hasMFOCRF() const { return HasMFOCRF; }