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[mips] Add '-mvirt', '-mno-virt', '-mginv', '-mno-ginv' options 

'-mvirt'/'-mno-virt' enables/disables Virtualization ASE.
'-mginv'/'-mno-ginv' enables/disables GINV (Global Invalidate) ASE.

Differential revision: https://reviews.llvm.org/D48982

llvm-svn: 336798
This commit is contained in:
Vladimir Stefanovic 2018-07-11 12:45:25 +00:00
parent d2e2c053cf
commit 00869f3214
3 changed files with 32 additions and 0 deletions
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4
clang/include/clang/Driver/Options.td
View File

@ -2216,6 +2216,10 @@ def mno_abicalls : Flag<["-"], "mno-abicalls">, Group<m_mips_Features_Group>,
HelpText<"Disable SVR4-style position-independent code (Mips only)">;
def mno_crc : Flag<["-"], "mno-crc">, Group<m_mips_Features_Group>,
HelpText<"Disallow use of CRC instructions (Mips only)">;
def mvirt : Flag<["-"], "mvirt">, Group<m_mips_Features_Group>;
def mno_virt : Flag<["-"], "mno-virt">, Group<m_mips_Features_Group>;
def mginv : Flag<["-"], "mginv">, Group<m_mips_Features_Group>;
def mno_ginv : Flag<["-"], "mno-ginv">, Group<m_mips_Features_Group>;
def mips1 : Flag<["-"], "mips1">,
Alias<march_EQ>, AliasArgs<["mips1"]>, Group<m_mips_Features_Group>,
HelpText<"Equivalent to -march=mips1">, Flags<[HelpHidden]>;

4
clang/lib/Driver/ToolChains/Arch/Mips.cpp
View File

@ -352,6 +352,10 @@ void mips::getMIPSTargetFeatures(const Driver &D, const llvm::Triple &Triple,
AddTargetFeature(Args, Features, options::OPT_mmt, options::OPT_mno_mt, "mt");
AddTargetFeature(Args, Features, options::OPT_mcrc, options::OPT_mno_crc,
"crc");
AddTargetFeature(Args, Features, options::OPT_mvirt, options::OPT_mno_virt,
"virt");
AddTargetFeature(Args, Features, options::OPT_mginv, options::OPT_mno_ginv,
"ginv");
if (Arg *A = Args.getLastArg(options::OPT_mindirect_jump_EQ)) {
StringRef Val = StringRef(A->getValue());

24
clang/test/Driver/mips-features.c
View File

@ -420,3 +420,27 @@
// RUN: -mcrc -mno-crc 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-NO-CRC %s
// CHECK-NO-CRC: "-target-feature" "-crc"
//
// -mvirt
// RUN: %clang -target mips-unknown-linux-gnu -### -c %s \
// RUN: -mno-virt -mvirt 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-VIRT %s
// CHECK-VIRT: "-target-feature" "+virt"
//
// -mno-virt
// RUN: %clang -target mips-unknown-linux-gnu -### -c %s \
// RUN: -mvirt -mno-virt 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-NO-VIRT %s
// CHECK-NO-VIRT: "-target-feature" "-virt"
//
// -mginv
// RUN: %clang -target mips-unknown-linux-gnu -### -c %s \
// RUN: -mno-ginv -mginv 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-GINV %s
// CHECK-GINV: "-target-feature" "+ginv"
//
// -mno-ginv
// RUN: %clang -target mips-unknown-linux-gnu -### -c %s \
// RUN: -mginv -mno-ginv 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-NO-GINV %s
// CHECK-NO-GINV: "-target-feature" "-ginv"