vstefanovic created this revision.
vstefanovic added reviewers: sdardis, bogden.
Herald added a reviewer: javed.absar.
Herald added subscribers: cfe-commits, atanasyan, kristof.beyls, arichardson.
'-mcrc' is shared with ARM.
'-mno-crc' is Mips-only (ARM uses '-mnocrc').
Repository:
rC Clang
https://reviews.llvm.org/D48169
Files:
include/clang/Driver/Options.td
lib/Driver/ToolChains/Arch/Mips.cpp
test/Driver/mips-features.c
Index: test/Driver/mips-features.c
===================================================================
--- test/Driver/mips-features.c
+++ test/Driver/mips-features.c
@@ -408,3 +408,15 @@
// RUN: -mindirect-jump=hazard 2>&1 \
// RUN: | FileCheck --check-prefix=INDIRECT-BH %s
// INDIRECT-BH: "-target-feature" "+use-indirect-jump-hazard"
+//
+// -mcrc
+// RUN: %clang -target mips-unknown-linux-gnu -### -c %s \
+// RUN: -mno-crc -mcrc 2>&1 \
+// RUN: | FileCheck --check-prefix=CHECK-CRC %s
+// CHECK-CRC: "-target-feature" "+crc"
+//
+// -mno-crc
+// RUN: %clang -target mips-unknown-linux-gnu -### -c %s \
+// RUN: -mcrc -mno-crc 2>&1 \
+// RUN: | FileCheck --check-prefix=CHECK-NO-CRC %s
+// CHECK-NO-CRC: "-target-feature" "-crc"
Index: lib/Driver/ToolChains/Arch/Mips.cpp
===================================================================
--- lib/Driver/ToolChains/Arch/Mips.cpp
+++ lib/Driver/ToolChains/Arch/Mips.cpp
@@ -352,6 +352,8 @@
AddTargetFeature(Args, Features, options::OPT_mno_madd4, options::OPT_mmadd4,
"nomadd4");
AddTargetFeature(Args, Features, options::OPT_mmt, options::OPT_mno_mt,
"mt");
+ AddTargetFeature(Args, Features, options::OPT_mcrc, options::OPT_mno_crc,
+ "crc");
if (Arg *A = Args.getLastArg(options::OPT_mindirect_jump_EQ)) {
StringRef Val = StringRef(A->getValue());
Index: include/clang/Driver/Options.td
===================================================================
--- include/clang/Driver/Options.td
+++ include/clang/Driver/Options.td
@@ -1992,8 +1992,8 @@
HelpText<"Reserve the r9 register (ARM only)">;
def mno_movt : Flag<["-"], "mno-movt">, Group<m_arm_Features_Group>,
HelpText<"Disallow use of movt/movw pairs (ARM only)">;
-def mcrc : Flag<["-"], "mcrc">, Group<m_arm_Features_Group>,
- HelpText<"Allow use of CRC instructions (ARM only)">;
+def mcrc : Flag<["-"], "mcrc">, Group<m_Group>,
+ HelpText<"Allow use of CRC instructions (ARM/Mips only)">;
def mnocrc : Flag<["-"], "mnocrc">, Group<m_arm_Features_Group>,
HelpText<"Disallow use of CRC instructions (ARM only)">;
def mno_neg_immediates: Flag<["-"], "mno-neg-immediates">,
Group<m_arm_Features_Group>,
@@ -2211,6 +2211,8 @@
HelpText<"Enable SVR4-style position-independent code (Mips only)">;
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 mips1 : Flag<["-"], "mips1">,
Alias<march_EQ>, AliasArgs<["mips1"]>, Group<m_mips_Features_Group>,
HelpText<"Equivalent to -march=mips1">, Flags<[HelpHidden]>;
Index: test/Driver/mips-features.c
===================================================================
--- test/Driver/mips-features.c
+++ test/Driver/mips-features.c
@@ -408,3 +408,15 @@
// RUN: -mindirect-jump=hazard 2>&1 \
// RUN: | FileCheck --check-prefix=INDIRECT-BH %s
// INDIRECT-BH: "-target-feature" "+use-indirect-jump-hazard"
+//
+// -mcrc
+// RUN: %clang -target mips-unknown-linux-gnu -### -c %s \
+// RUN: -mno-crc -mcrc 2>&1 \
+// RUN: | FileCheck --check-prefix=CHECK-CRC %s
+// CHECK-CRC: "-target-feature" "+crc"
+//
+// -mno-crc
+// RUN: %clang -target mips-unknown-linux-gnu -### -c %s \
+// RUN: -mcrc -mno-crc 2>&1 \
+// RUN: | FileCheck --check-prefix=CHECK-NO-CRC %s
+// CHECK-NO-CRC: "-target-feature" "-crc"
Index: lib/Driver/ToolChains/Arch/Mips.cpp
===================================================================
--- lib/Driver/ToolChains/Arch/Mips.cpp
+++ lib/Driver/ToolChains/Arch/Mips.cpp
@@ -352,6 +352,8 @@
AddTargetFeature(Args, Features, options::OPT_mno_madd4, options::OPT_mmadd4,
"nomadd4");
AddTargetFeature(Args, Features, options::OPT_mmt, options::OPT_mno_mt, "mt");
+ AddTargetFeature(Args, Features, options::OPT_mcrc, options::OPT_mno_crc,
+ "crc");
if (Arg *A = Args.getLastArg(options::OPT_mindirect_jump_EQ)) {
StringRef Val = StringRef(A->getValue());
Index: include/clang/Driver/Options.td
===================================================================
--- include/clang/Driver/Options.td
+++ include/clang/Driver/Options.td
@@ -1992,8 +1992,8 @@
HelpText<"Reserve the r9 register (ARM only)">;
def mno_movt : Flag<["-"], "mno-movt">, Group<m_arm_Features_Group>,
HelpText<"Disallow use of movt/movw pairs (ARM only)">;
-def mcrc : Flag<["-"], "mcrc">, Group<m_arm_Features_Group>,
- HelpText<"Allow use of CRC instructions (ARM only)">;
+def mcrc : Flag<["-"], "mcrc">, Group<m_Group>,
+ HelpText<"Allow use of CRC instructions (ARM/Mips only)">;
def mnocrc : Flag<["-"], "mnocrc">, Group<m_arm_Features_Group>,
HelpText<"Disallow use of CRC instructions (ARM only)">;
def mno_neg_immediates: Flag<["-"], "mno-neg-immediates">, Group<m_arm_Features_Group>,
@@ -2211,6 +2211,8 @@
HelpText<"Enable SVR4-style position-independent code (Mips only)">;
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 mips1 : Flag<["-"], "mips1">,
Alias<march_EQ>, AliasArgs<["mips1"]>, Group<m_mips_Features_Group>,
HelpText<"Equivalent to -march=mips1">, Flags<[HelpHidden]>;
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