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Vendor import of clang release_60 branch r324090:

Browse source 
https://llvm.org/svn/llvm-project/cfe/branches/release_60@324090
This commit is contained in:
Dimitry Andric 2018-02-02 17:08:09 +00:00
parent bddbc598a7
commit 660d91aa9e
4 changed files with 21 additions and 0 deletions
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4
include/clang/Driver/Options.td
View file

@ -2583,6 +2583,10 @@ def mshstk : Flag<["-"], "mshstk">, Group<m_x86_Features_Group>;
def mno_shstk : Flag<["-"], "mno-shstk">, Group<m_x86_Features_Group>;
def mibt : Flag<["-"], "mibt">, Group<m_x86_Features_Group>;
def mno_ibt : Flag<["-"], "mno-ibt">, Group<m_x86_Features_Group>;
def mretpoline : Flag<["-"], "mretpoline">, Group<m_x86_Features_Group>;
def mno_retpoline : Flag<["-"], "mno-retpoline">, Group<m_x86_Features_Group>;
def mretpoline_external_thunk : Flag<["-"], "mretpoline-external-thunk">, Group<m_x86_Features_Group>;
def mno_retpoline_external_thunk : Flag<["-"], "mno-retpoline-external-thunk">, Group<m_x86_Features_Group>;
// These are legacy user-facing driver-level option spellings. They are always
// aliases for options that are spelled using the more common Unix / GNU flag

6
lib/Basic/Targets/X86.cpp
View file

@ -763,6 +763,10 @@ bool X86TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
HasPREFETCHWT1 = true;
} else if (Feature == "+clzero") {
HasCLZERO = true;
} else if (Feature == "+retpoline") {
HasRetpoline = true;
} else if (Feature == "+retpoline-external-thunk") {
HasRetpolineExternalThunk = true;
}
X86SSEEnum Level = llvm::StringSwitch<X86SSEEnum>(Feature)
@ -1305,6 +1309,8 @@ bool X86TargetInfo::hasFeature(StringRef Feature) const {
.Case("prfchw", HasPRFCHW)
.Case("rdrnd", HasRDRND)
.Case("rdseed", HasRDSEED)
.Case("retpoline", HasRetpoline)
.Case("retpoline-external-thunk", HasRetpolineExternalThunk)
.Case("rtm", HasRTM)
.Case("sgx", HasSGX)
.Case("sha", HasSHA)

2
lib/Basic/Targets/X86.h
View file

@ -96,6 +96,8 @@ class LLVM_LIBRARY_VISIBILITY X86TargetInfo : public TargetInfo {
bool HasCLWB = false;
bool HasMOVBE = false;
bool HasPREFETCHWT1 = false;
bool HasRetpoline = false;
bool HasRetpolineExternalThunk = false;
/// \brief Enumeration of all of the X86 CPUs supported by Clang.
///

9
test/Driver/x86-target-features.c
View file

@ -125,3 +125,12 @@
// VBMI2: "-target-feature" "+avx512vbmi2"
// NO-VBMI2: "-target-feature" "-avx512vbmi2"
// RUN: %clang -target i386-linux-gnu -mretpoline %s -### -o %t.o 2>&1 | FileCheck -check-prefix=RETPOLINE %s
// RUN: %clang -target i386-linux-gnu -mno-retpoline %s -### -o %t.o 2>&1 | FileCheck -check-prefix=NO-RETPOLINE %s
// RETPOLINE: "-target-feature" "+retpoline"
// NO-RETPOLINE: "-target-feature" "-retpoline"
// RUN: %clang -target i386-linux-gnu -mretpoline -mretpoline-external-thunk %s -### -o %t.o 2>&1 | FileCheck -check-prefix=RETPOLINE-EXTERNAL-THUNK %s
// RUN: %clang -target i386-linux-gnu -mretpoline -mno-retpoline-external-thunk %s -### -o %t.o 2>&1 | FileCheck -check-prefix=NO-RETPOLINE-EXTERNAL-THUNK %s
// RETPOLINE-EXTERNAL-THUNK: "-target-feature" "+retpoline-external-thunk"
// NO-RETPOLINE-EXTERNAL-THUNK: "-target-feature" "-retpoline-external-thunk"