[Mips] Handle pseudo-target flags '-EL' and '-EB' and properly adjust
toolchain flags for MIPS targets.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178232 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index 0a364bb..0d75b8e 100644
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -822,6 +822,8 @@
def l : JoinedOrSeparate<["-"], "l">, Flags<[LinkerInput, RenderJoined]>;
def lazy__framework : Separate<["-"], "lazy_framework">, Flags<[LinkerInput]>;
def lazy__library : Separate<["-"], "lazy_library">, Flags<[LinkerInput]>;
+def EL : Flag<["-"], "EL">, Flags<[DriverOption]>;
+def EB : Flag<["-"], "EB">, Flags<[DriverOption]>;
def m32 : Flag<["-"], "m32">, Group<m_Group>, Flags<[DriverOption]>;
def mqdsp6_compat : Flag<["-"], "mqdsp6-compat">, Group<m_Group>, Flags<[DriverOption,CC1Option]>,
HelpText<"Enable hexagon-qdsp6 backward compatibility">;
diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index 29ed5cf..4fb5502 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -1653,6 +1653,21 @@
}
}
+ // Handle pseudo-target flags '-EL' and '-EB'.
+ if (Arg *A = Args.getLastArg(options::OPT_EL, options::OPT_EB)) {
+ if (A->getOption().matches(options::OPT_EL)) {
+ if (Target.getArch() == llvm::Triple::mips)
+ Target.setArch(llvm::Triple::mipsel);
+ else if (Target.getArch() == llvm::Triple::mips64)
+ Target.setArch(llvm::Triple::mips64el);
+ } else {
+ if (Target.getArch() == llvm::Triple::mipsel)
+ Target.setArch(llvm::Triple::mips);
+ else if (Target.getArch() == llvm::Triple::mips64el)
+ Target.setArch(llvm::Triple::mips64);
+ }
+ }
+
// Skip further flag support on OSes which don't support '-m32' or '-m64'.
if (Target.getArchName() == "tce" ||
Target.getOS() == llvm::Triple::AuroraUX ||
diff --git a/test/Driver/mips-eleb.c b/test/Driver/mips-eleb.c
new file mode 100644
index 0000000..8afe44f
--- /dev/null
+++ b/test/Driver/mips-eleb.c
@@ -0,0 +1,31 @@
+// REQUIRES: mips-registered-target
+//
+// Check that -EL/-EB options adjust the toolchain flags.
+//
+// RUN: %clang -target mips-unknown-linux-gnu -### \
+// RUN: -EL -no-integrated-as %s 2>&1 \
+// RUN: | FileCheck -check-prefix=MIPS32-EL %s
+// MIPS32-EL: "{{.*}}clang{{.*}}" "-cc1" "-triple" "mipsel-unknown-linux-gnu"
+// MIPS32-EL: "{{.*}}as{{(.exe)?}}" "-march" "mips32" "-mabi" "32" "-EL"
+// MIPS32-EL: "{{.*}}ld{{(.exe)?}}" {{.*}} "-m" "elf32ltsmip"
+//
+// RUN: %clang -target mips64-unknown-linux-gnu -### \
+// RUN: -EL -no-integrated-as %s 2>&1 \
+// RUN: | FileCheck -check-prefix=MIPS64-EL %s
+// MIPS64-EL: "{{.*}}clang{{.*}}" "-cc1" "-triple" "mips64el-unknown-linux-gnu"
+// MIPS64-EL: "{{.*}}as{{(.exe)?}}" "-march" "mips64" "-mabi" "64" "-EL"
+// MIPS64-EL: "{{.*}}ld{{(.exe)?}}" {{.*}} "-m" "elf64ltsmip"
+//
+// RUN: %clang -target mipsel-unknown-linux-gnu -### \
+// RUN: -EB -no-integrated-as %s 2>&1 \
+// RUN: | FileCheck -check-prefix=MIPS32-EB %s
+// MIPS32-EB: "{{.*}}clang{{.*}}" "-cc1" "-triple" "mips-unknown-linux-gnu"
+// MIPS32-EB: "{{.*}}as{{(.exe)?}}" "-march" "mips32" "-mabi" "32" "-EB"
+// MIPS32-EB: "{{.*}}ld{{(.exe)?}}" {{.*}} "-m" "elf32btsmip"
+//
+// RUN: %clang -target mips64el-unknown-linux-gnu -### \
+// RUN: -EB -no-integrated-as %s 2>&1 \
+// RUN: | FileCheck -check-prefix=MIPS64-EB %s
+// MIPS64-EB: "{{.*}}clang{{.*}}" "-cc1" "-triple" "mips64-unknown-linux-gnu"
+// MIPS64-EB: "{{.*}}as{{(.exe)?}}" "-march" "mips64" "-mabi" "64" "-EB"
+// MIPS64-EB: "{{.*}}ld{{(.exe)?}}" {{.*}} "-m" "elf64btsmip"
