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Add support for gcc-compatible -mfprnd -mno-fprnd PPC options 

gcc provides -mfprnd and -mno-fprnd for controlling the fprnd target
feature; support these options as well.

llvm-svn: 178414
This commit is contained in:
Hal Finkel 2013-03-30 13:47:44 +00:00
parent 06c44dce73
commit 7d4585973a
4 changed files with 14 additions and 2 deletions
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2
clang/include/clang/Driver/Options.td
View File

@ -834,6 +834,8 @@ def mabi_EQ : Joined<["-"], "mabi=">, Group<m_Group>;
def march_EQ : Joined<["-"], "march=">, Group<m_Group>;
def maltivec : Flag<["-"], "maltivec">, Alias<faltivec>;
def mno_altivec : Flag<["-"], "mno-altivec">, Alias<fno_altivec>;
def mfprnd : Flag<["-"], "mfprnd">, Group<m_Group>;
def mno_fprnd : Flag<["-"], "mno-fprnd">, Group<m_Group>;
def mmfcrf : Flag<["-"], "mmfcrf">, Group<m_Group>;
def mno_mfcrf : Flag<["-"], "mno-mfcrf">, Group<m_Group>;
def mpopcntd : Flag<["-"], "mpopcntd">, Group<m_Group>;

4
clang/lib/Basic/Targets.cpp
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@ -1029,8 +1029,8 @@ void PPCTargetInfo::getDefaultFeatures(llvm::StringMap<bool> &Features) const {
bool PPCTargetInfo::setFeatureEnabled(llvm::StringMap<bool> &Features,
StringRef Name,
bool Enabled) const {
if (Name == "altivec" || Name == "mfocrf" || Name == "popcntd" ||
Name == "qpx") {
if (Name == "altivec" || Name == "fprnd" || Name == "mfocrf" ||
Name == "popcntd" || Name == "qpx") {
Features[Name] = Enabled;
return true;
}

4
clang/lib/Driver/Tools.cpp
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@ -1101,6 +1101,10 @@ void Clang::AddPPCTargetArgs(const ArgList &Args,
options::OPT_faltivec, options::OPT_fno_altivec,
"altivec");
AddTargetFeature(Args, CmdArgs,
options::OPT_mfprnd, options::OPT_mno_fprnd,
"fprnd");
// Note that gcc calls this mfcrf and LLVM calls this mfocrf.
AddTargetFeature(Args, CmdArgs,
options::OPT_mmfcrf, options::OPT_mno_mfcrf,

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

@ -80,3 +80,9 @@
// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-popcntd -mpopcntd -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-POPCNTD %s
// CHECK-POPCNTD: "-target-feature" "+popcntd"
// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-fprnd -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOFPRND %s
// CHECK-NOFPRND: "-target-feature" "-fprnd"
// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-fprnd -mfprnd -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-FPRND %s
// CHECK-FPRND: "-target-feature" "+fprnd"