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authororivej <orivej@yandex-team.ru>2022-02-10 16:45:01 +0300
committerDaniil Cherednik <dcherednik@yandex-team.ru>2022-02-10 16:45:01 +0300
commit2d37894b1b037cf24231090eda8589bbb44fb6fc (patch)
treebe835aa92c6248212e705f25388ebafcf84bc7a1 /contrib/libs/llvm12/lib/Target/PowerPC/PPCLowerMASSVEntries.cpp
parent718c552901d703c502ccbefdfc3c9028d608b947 (diff)
downloadydb-2d37894b1b037cf24231090eda8589bbb44fb6fc.tar.gz
Restoring authorship annotation for <orivej@yandex-team.ru>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/llvm12/lib/Target/PowerPC/PPCLowerMASSVEntries.cpp')
-rw-r--r--contrib/libs/llvm12/lib/Target/PowerPC/PPCLowerMASSVEntries.cpp386
1 files changed, 193 insertions, 193 deletions
diff --git a/contrib/libs/llvm12/lib/Target/PowerPC/PPCLowerMASSVEntries.cpp b/contrib/libs/llvm12/lib/Target/PowerPC/PPCLowerMASSVEntries.cpp
index 3bf70949b6..27b2c9a628 100644
--- a/contrib/libs/llvm12/lib/Target/PowerPC/PPCLowerMASSVEntries.cpp
+++ b/contrib/libs/llvm12/lib/Target/PowerPC/PPCLowerMASSVEntries.cpp
@@ -1,196 +1,196 @@
-//===-- PPCLowerMASSVEntries.cpp ------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements lowering of MASSV (SIMD) entries for specific PowerPC
-// subtargets.
-// Following is an example of a conversion specific to Power9 subtarget:
-// __sind2_massv ---> __sind2_P9
-//
-//===----------------------------------------------------------------------===//
-
-#include "PPC.h"
-#include "PPCSubtarget.h"
-#include "PPCTargetMachine.h"
+//===-- PPCLowerMASSVEntries.cpp ------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements lowering of MASSV (SIMD) entries for specific PowerPC
+// subtargets.
+// Following is an example of a conversion specific to Power9 subtarget:
+// __sind2_massv ---> __sind2_P9
+//
+//===----------------------------------------------------------------------===//
+
+#include "PPC.h"
+#include "PPCSubtarget.h"
+#include "PPCTargetMachine.h"
#include "llvm/ADT/STLExtras.h"
-#include "llvm/Analysis/TargetTransformInfo.h"
-#include "llvm/CodeGen/TargetPassConfig.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/Module.h"
-
-#define DEBUG_TYPE "ppc-lower-massv-entries"
-
-using namespace llvm;
-
-namespace {
-
-// Length of the suffix "massv", which is specific to IBM MASSV library entries.
-const unsigned MASSVSuffixLength = 5;
-
-static StringRef MASSVFuncs[] = {
-#define TLI_DEFINE_MASSV_VECFUNCS_NAMES
-#include "llvm/Analysis/VecFuncs.def"
-};
-
-class PPCLowerMASSVEntries : public ModulePass {
-public:
- static char ID;
-
- PPCLowerMASSVEntries() : ModulePass(ID) {}
-
- bool runOnModule(Module &M) override;
-
- StringRef getPassName() const override { return "PPC Lower MASS Entries"; }
-
- void getAnalysisUsage(AnalysisUsage &AU) const override {
- AU.addRequired<TargetTransformInfoWrapperPass>();
- }
-
-private:
- static bool isMASSVFunc(StringRef Name);
- static StringRef getCPUSuffix(const PPCSubtarget *Subtarget);
- static std::string createMASSVFuncName(Function &Func,
- const PPCSubtarget *Subtarget);
- bool handlePowSpecialCases(CallInst *CI, Function &Func, Module &M);
- bool lowerMASSVCall(CallInst *CI, Function &Func, Module &M,
- const PPCSubtarget *Subtarget);
-};
-
-} // namespace
-
-/// Checks if the specified function name represents an entry in the MASSV
-/// library.
-bool PPCLowerMASSVEntries::isMASSVFunc(StringRef Name) {
+#include "llvm/Analysis/TargetTransformInfo.h"
+#include "llvm/CodeGen/TargetPassConfig.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/Module.h"
+
+#define DEBUG_TYPE "ppc-lower-massv-entries"
+
+using namespace llvm;
+
+namespace {
+
+// Length of the suffix "massv", which is specific to IBM MASSV library entries.
+const unsigned MASSVSuffixLength = 5;
+
+static StringRef MASSVFuncs[] = {
+#define TLI_DEFINE_MASSV_VECFUNCS_NAMES
+#include "llvm/Analysis/VecFuncs.def"
+};
+
+class PPCLowerMASSVEntries : public ModulePass {
+public:
+ static char ID;
+
+ PPCLowerMASSVEntries() : ModulePass(ID) {}
+
+ bool runOnModule(Module &M) override;
+
+ StringRef getPassName() const override { return "PPC Lower MASS Entries"; }
+
+ void getAnalysisUsage(AnalysisUsage &AU) const override {
+ AU.addRequired<TargetTransformInfoWrapperPass>();
+ }
+
+private:
+ static bool isMASSVFunc(StringRef Name);
+ static StringRef getCPUSuffix(const PPCSubtarget *Subtarget);
+ static std::string createMASSVFuncName(Function &Func,
+ const PPCSubtarget *Subtarget);
+ bool handlePowSpecialCases(CallInst *CI, Function &Func, Module &M);
+ bool lowerMASSVCall(CallInst *CI, Function &Func, Module &M,
+ const PPCSubtarget *Subtarget);
+};
+
+} // namespace
+
+/// Checks if the specified function name represents an entry in the MASSV
+/// library.
+bool PPCLowerMASSVEntries::isMASSVFunc(StringRef Name) {
return llvm::is_contained(MASSVFuncs, Name);
-}
-
-// FIXME:
-/// Returns a string corresponding to the specified PowerPC subtarget. e.g.:
-/// "P8" for Power8, "P9" for Power9. The string is used as a suffix while
-/// generating subtarget-specific MASSV library functions. Current support
-/// includes Power8 and Power9 subtargets.
-StringRef PPCLowerMASSVEntries::getCPUSuffix(const PPCSubtarget *Subtarget) {
- // Assume Power8 when Subtarget is unavailable.
- if (!Subtarget)
- return "P8";
- if (Subtarget->hasP9Vector())
- return "P9";
- if (Subtarget->hasP8Vector())
- return "P8";
-
- report_fatal_error("Unsupported Subtarget: MASSV is supported only on "
- "Power8 and Power9 subtargets.");
-}
-
-/// Creates PowerPC subtarget-specific name corresponding to the specified
-/// generic MASSV function, and the PowerPC subtarget.
-std::string
-PPCLowerMASSVEntries::createMASSVFuncName(Function &Func,
- const PPCSubtarget *Subtarget) {
- StringRef Suffix = getCPUSuffix(Subtarget);
- auto GenericName = Func.getName().drop_back(MASSVSuffixLength).str();
- std::string MASSVEntryName = GenericName + Suffix.str();
- return MASSVEntryName;
-}
-
-/// If there are proper fast-math flags, this function creates llvm.pow
-/// intrinsics when the exponent is 0.25 or 0.75.
-bool PPCLowerMASSVEntries::handlePowSpecialCases(CallInst *CI, Function &Func,
- Module &M) {
- if (Func.getName() != "__powf4_massv" && Func.getName() != "__powd2_massv")
- return false;
-
- if (Constant *Exp = dyn_cast<Constant>(CI->getArgOperand(1)))
+}
+
+// FIXME:
+/// Returns a string corresponding to the specified PowerPC subtarget. e.g.:
+/// "P8" for Power8, "P9" for Power9. The string is used as a suffix while
+/// generating subtarget-specific MASSV library functions. Current support
+/// includes Power8 and Power9 subtargets.
+StringRef PPCLowerMASSVEntries::getCPUSuffix(const PPCSubtarget *Subtarget) {
+ // Assume Power8 when Subtarget is unavailable.
+ if (!Subtarget)
+ return "P8";
+ if (Subtarget->hasP9Vector())
+ return "P9";
+ if (Subtarget->hasP8Vector())
+ return "P8";
+
+ report_fatal_error("Unsupported Subtarget: MASSV is supported only on "
+ "Power8 and Power9 subtargets.");
+}
+
+/// Creates PowerPC subtarget-specific name corresponding to the specified
+/// generic MASSV function, and the PowerPC subtarget.
+std::string
+PPCLowerMASSVEntries::createMASSVFuncName(Function &Func,
+ const PPCSubtarget *Subtarget) {
+ StringRef Suffix = getCPUSuffix(Subtarget);
+ auto GenericName = Func.getName().drop_back(MASSVSuffixLength).str();
+ std::string MASSVEntryName = GenericName + Suffix.str();
+ return MASSVEntryName;
+}
+
+/// If there are proper fast-math flags, this function creates llvm.pow
+/// intrinsics when the exponent is 0.25 or 0.75.
+bool PPCLowerMASSVEntries::handlePowSpecialCases(CallInst *CI, Function &Func,
+ Module &M) {
+ if (Func.getName() != "__powf4_massv" && Func.getName() != "__powd2_massv")
+ return false;
+
+ if (Constant *Exp = dyn_cast<Constant>(CI->getArgOperand(1)))
if (ConstantFP *CFP = dyn_cast_or_null<ConstantFP>(Exp->getSplatValue())) {
- // If the argument is 0.75 or 0.25 it is cheaper to turn it into pow
- // intrinsic so that it could be optimzed as sequence of sqrt's.
- if (!CI->hasNoInfs() || !CI->hasApproxFunc())
- return false;
-
- if (!CFP->isExactlyValue(0.75) && !CFP->isExactlyValue(0.25))
- return false;
-
- if (CFP->isExactlyValue(0.25) && !CI->hasNoSignedZeros())
- return false;
-
- CI->setCalledFunction(
- Intrinsic::getDeclaration(&M, Intrinsic::pow, CI->getType()));
- return true;
- }
-
- return false;
-}
-
-/// Lowers generic MASSV entries to PowerPC subtarget-specific MASSV entries.
-/// e.g.: __sind2_massv --> __sind2_P9 for a Power9 subtarget.
-/// Both function prototypes and their callsites are updated during lowering.
-bool PPCLowerMASSVEntries::lowerMASSVCall(CallInst *CI, Function &Func,
- Module &M,
- const PPCSubtarget *Subtarget) {
- if (CI->use_empty())
- return false;
-
- // Handling pow(x, 0.25), pow(x, 0.75), powf(x, 0.25), powf(x, 0.75)
- if (handlePowSpecialCases(CI, Func, M))
- return true;
-
- std::string MASSVEntryName = createMASSVFuncName(Func, Subtarget);
- FunctionCallee FCache = M.getOrInsertFunction(
- MASSVEntryName, Func.getFunctionType(), Func.getAttributes());
-
- CI->setCalledFunction(FCache);
-
- return true;
-}
-
-bool PPCLowerMASSVEntries::runOnModule(Module &M) {
- bool Changed = false;
-
- auto *TPC = getAnalysisIfAvailable<TargetPassConfig>();
- if (!TPC)
- return Changed;
-
- auto &TM = TPC->getTM<PPCTargetMachine>();
- const PPCSubtarget *Subtarget;
-
- for (Function &Func : M) {
- if (!Func.isDeclaration())
- continue;
-
- if (!isMASSVFunc(Func.getName()))
- continue;
-
- // Call to lowerMASSVCall() invalidates the iterator over users upon
- // replacing the users. Precomputing the current list of users allows us to
- // replace all the call sites.
- SmallVector<User *, 4> MASSVUsers;
- for (auto *User: Func.users())
- MASSVUsers.push_back(User);
-
- for (auto *User : MASSVUsers) {
- auto *CI = dyn_cast<CallInst>(User);
- if (!CI)
- continue;
-
- Subtarget = &TM.getSubtarget<PPCSubtarget>(*CI->getParent()->getParent());
- Changed |= lowerMASSVCall(CI, Func, M, Subtarget);
- }
- }
-
- return Changed;
-}
-
-char PPCLowerMASSVEntries::ID = 0;
-
-char &llvm::PPCLowerMASSVEntriesID = PPCLowerMASSVEntries::ID;
-
-INITIALIZE_PASS(PPCLowerMASSVEntries, DEBUG_TYPE, "Lower MASSV entries", false,
- false)
-
-ModulePass *llvm::createPPCLowerMASSVEntriesPass() {
- return new PPCLowerMASSVEntries();
-}
+ // If the argument is 0.75 or 0.25 it is cheaper to turn it into pow
+ // intrinsic so that it could be optimzed as sequence of sqrt's.
+ if (!CI->hasNoInfs() || !CI->hasApproxFunc())
+ return false;
+
+ if (!CFP->isExactlyValue(0.75) && !CFP->isExactlyValue(0.25))
+ return false;
+
+ if (CFP->isExactlyValue(0.25) && !CI->hasNoSignedZeros())
+ return false;
+
+ CI->setCalledFunction(
+ Intrinsic::getDeclaration(&M, Intrinsic::pow, CI->getType()));
+ return true;
+ }
+
+ return false;
+}
+
+/// Lowers generic MASSV entries to PowerPC subtarget-specific MASSV entries.
+/// e.g.: __sind2_massv --> __sind2_P9 for a Power9 subtarget.
+/// Both function prototypes and their callsites are updated during lowering.
+bool PPCLowerMASSVEntries::lowerMASSVCall(CallInst *CI, Function &Func,
+ Module &M,
+ const PPCSubtarget *Subtarget) {
+ if (CI->use_empty())
+ return false;
+
+ // Handling pow(x, 0.25), pow(x, 0.75), powf(x, 0.25), powf(x, 0.75)
+ if (handlePowSpecialCases(CI, Func, M))
+ return true;
+
+ std::string MASSVEntryName = createMASSVFuncName(Func, Subtarget);
+ FunctionCallee FCache = M.getOrInsertFunction(
+ MASSVEntryName, Func.getFunctionType(), Func.getAttributes());
+
+ CI->setCalledFunction(FCache);
+
+ return true;
+}
+
+bool PPCLowerMASSVEntries::runOnModule(Module &M) {
+ bool Changed = false;
+
+ auto *TPC = getAnalysisIfAvailable<TargetPassConfig>();
+ if (!TPC)
+ return Changed;
+
+ auto &TM = TPC->getTM<PPCTargetMachine>();
+ const PPCSubtarget *Subtarget;
+
+ for (Function &Func : M) {
+ if (!Func.isDeclaration())
+ continue;
+
+ if (!isMASSVFunc(Func.getName()))
+ continue;
+
+ // Call to lowerMASSVCall() invalidates the iterator over users upon
+ // replacing the users. Precomputing the current list of users allows us to
+ // replace all the call sites.
+ SmallVector<User *, 4> MASSVUsers;
+ for (auto *User: Func.users())
+ MASSVUsers.push_back(User);
+
+ for (auto *User : MASSVUsers) {
+ auto *CI = dyn_cast<CallInst>(User);
+ if (!CI)
+ continue;
+
+ Subtarget = &TM.getSubtarget<PPCSubtarget>(*CI->getParent()->getParent());
+ Changed |= lowerMASSVCall(CI, Func, M, Subtarget);
+ }
+ }
+
+ return Changed;
+}
+
+char PPCLowerMASSVEntries::ID = 0;
+
+char &llvm::PPCLowerMASSVEntriesID = PPCLowerMASSVEntries::ID;
+
+INITIALIZE_PASS(PPCLowerMASSVEntries, DEBUG_TYPE, "Lower MASSV entries", false,
+ false)
+
+ModulePass *llvm::createPPCLowerMASSVEntriesPass() {
+ return new PPCLowerMASSVEntries();
+}
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