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Vendor import of llvm-project branch release/11.x

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llvmorg-11.0.0-0-g176249bd673 (aka 11.0.0 release).
This commit is contained in:
Dimitry Andric 2020-10-12 21:31:12 +00:00
parent d189cf5a46
commit 30078f4966
4 changed files with 16 additions and 6 deletions
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4
clang/include/clang/Driver/Options.td
View file

@ -1435,11 +1435,11 @@ def fno_pch_validate_input_files_content:
Group<f_Group>, Flags<[DriverOption]>;
def fpch_instantiate_templates:
Flag <["-"], "fpch-instantiate-templates">,
Group<f_Group>, Flags<[CC1Option]>,
Group<f_Group>, Flags<[CC1Option, CoreOption]>,
HelpText<"Instantiate templates already while building a PCH">;
def fno_pch_instantiate_templates:
Flag <["-"], "fno-pch-instantiate-templates">,
Group<f_Group>, Flags<[CC1Option]>;
Group<f_Group>, Flags<[CC1Option, CoreOption]>;
defm pch_codegen: OptInFFlag<"pch-codegen", "Generate ", "Do not generate ",
"code for uses of this PCH that assumes an explicit object file will be built for the PCH">;
defm pch_debuginfo: OptInFFlag<"pch-debuginfo", "Generate ", "Do not generate ",

6
clang/lib/Driver/ToolChains/Clang.cpp
View file

@ -1197,7 +1197,11 @@ void Clang::AddPreprocessingOptions(Compilation &C, const JobAction &JA,
if (YcArg && JA.getKind() >= Action::PrecompileJobClass &&
JA.getKind() <= Action::AssembleJobClass) {
CmdArgs.push_back(Args.MakeArgString("-building-pch-with-obj"));
CmdArgs.push_back(Args.MakeArgString("-fpch-instantiate-templates"));
// -fpch-instantiate-templates is the default when creating
// precomp using /Yc
if (Args.hasFlag(options::OPT_fpch_instantiate_templates,
options::OPT_fno_pch_instantiate_templates, true))
CmdArgs.push_back(Args.MakeArgString("-fpch-instantiate-templates"));
}
if (YcArg || YuArg) {
StringRef ThroughHeader = YcArg ? YcArg->getValue() : YuArg->getValue();

4
llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
View file

@ -5751,10 +5751,8 @@ SDValue TargetLowering::getNegatedExpression(SDValue Op, SelectionDAG &DAG,
// If we already have the use of the negated floating constant, it is free
// to negate it even it has multiple uses.
if (!Op.hasOneUse() && CFP.use_empty()) {
RemoveDeadNode(CFP);
if (!Op.hasOneUse() && CFP.use_empty())
break;
}
Cost = NegatibleCost::Neutral;
return CFP;
}

8
llvm/lib/CodeGen/TailDuplicator.cpp
View file

@ -627,6 +627,14 @@ bool TailDuplicator::shouldTailDuplicate(bool IsSimple,
if (PreRegAlloc && MI.isCall())
return false;
// TailDuplicator::appendCopies will erroneously place COPYs after
// INLINEASM_BR instructions after 4b0aa5724fea, which demonstrates the same
// bug that was fixed in f7a53d82c090.
// FIXME: Use findPHICopyInsertPoint() to find the correct insertion point
// for the COPY when replacing PHIs.
if (MI.getOpcode() == TargetOpcode::INLINEASM_BR)
return false;
if (MI.isBundle())
InstrCount += MI.getBundleSize();
else if (!MI.isPHI() && !MI.isMetaInstruction())