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-rw-r--r--clang/lib/Driver/Tools.cpp13
-rw-r--r--clang/lib/Driver/Tools.h4
-rw-r--r--clang/test/Driver/arm-cortex-cpus.c9
3 files changed, 18 insertions, 8 deletions
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index e7bb49cb950..43d6ce9bbbb 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -679,7 +679,7 @@ static void getARMTargetFeatures(const Driver &D, const llvm::Triple &Triple,
// getARMArch is used here instead of just checking the -march value in order
// to handle -march=native correctly.
if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
- StringRef Arch = arm::getARMArch(Args, Triple);
+ std::string Arch = arm::getARMArch(Args, Triple);
if (llvm::ARMTargetParser::parseArch(Arch) == llvm::ARM::AK_INVALID)
D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args);
}
@@ -689,7 +689,7 @@ static void getARMTargetFeatures(const Driver &D, const llvm::Triple &Triple,
// getLLVMArchSuffixForARM which also needs an architecture.
if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
std::string CPU = arm::getARMTargetCPU(Args, Triple);
- StringRef Arch = arm::getARMArch(Args, Triple);
+ std::string Arch = arm::getARMArch(Args, Triple);
if (strcmp(arm::getLLVMArchSuffixForARM(CPU, Arch), "") == 0)
D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args);
}
@@ -5631,9 +5631,9 @@ void hexagon::Link::ConstructJob(Compilation &C, const JobAction &JA,
}
// Hexagon tools end.
-const StringRef arm::getARMArch(const ArgList &Args,
- const llvm::Triple &Triple) {
- StringRef MArch;
+const std::string arm::getARMArch(const ArgList &Args,
+ const llvm::Triple &Triple) {
+ std::string MArch;
if (Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
// Otherwise, if we have -march= choose the base CPU for that arch.
MArch = A->getValue();
@@ -5641,6 +5641,7 @@ const StringRef arm::getARMArch(const ArgList &Args,
// Otherwise, use the Arch from the triple.
MArch = Triple.getArchName();
}
+ MArch = StringRef(MArch).lower();
// Handle -march=native.
if (MArch == "native") {
@@ -5662,7 +5663,7 @@ const StringRef arm::getARMArch(const ArgList &Args,
/// Get the (LLVM) name of the minimum ARM CPU for the arch we are targeting.
const char *arm::getARMCPUForMArch(const ArgList &Args,
const llvm::Triple &Triple) {
- StringRef MArch = getARMArch(Args, Triple);
+ std::string MArch = getARMArch(Args, Triple);
// getARMCPUForArch defaults to the triple if MArch is empty, but empty MArch
// here means an -march=native that we can't handle, so instead return no CPU.
if (MArch.empty())
diff --git a/clang/lib/Driver/Tools.h b/clang/lib/Driver/Tools.h
index 133a389e510..0420eea1237 100644
--- a/clang/lib/Driver/Tools.h
+++ b/clang/lib/Driver/Tools.h
@@ -227,8 +227,8 @@ namespace hexagon {
namespace arm {
std::string getARMTargetCPU(const llvm::opt::ArgList &Args,
const llvm::Triple &Triple);
- const StringRef getARMArch(const llvm::opt::ArgList &Args,
- const llvm::Triple &Triple);
+ const std::string getARMArch(const llvm::opt::ArgList &Args,
+ const llvm::Triple &Triple);
const char* getARMCPUForMArch(const llvm::opt::ArgList &Args,
const llvm::Triple &Triple);
const char* getLLVMArchSuffixForARM(StringRef CPU, StringRef Arch);
diff --git a/clang/test/Driver/arm-cortex-cpus.c b/clang/test/Driver/arm-cortex-cpus.c
index b9db9622dd8..ef3056deb5f 100644
--- a/clang/test/Driver/arm-cortex-cpus.c
+++ b/clang/test/Driver/arm-cortex-cpus.c
@@ -402,3 +402,12 @@
// RUN: %clang -target arm-linux-gnueabi -mcpu=CorteX-a15 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CASE-INSENSITIVE-CPUV7A %s
// RUN: %clang -target arm-linux-gnueabi -mcpu=CorteX-A17 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CASE-INSENSITIVE-CPUV7A %s
// CHECK-CASE-INSENSITIVE-CPUV7A: "-cc1"{{.*}} "-triple" "armv7-{{.*}}
+
+// ================== Check whether -march accepts mixed-case values.
+// RUN: %clang -target arm -march=Armv5 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CASE-INSENSITIVE-V5 %s
+// RUN: %clang -target arm -march=ARMV5 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CASE-INSENSITIVE-V5 %s
+// CHECK-CASE-INSENSITIVE-V5: "-cc1"{{.*}} "-triple" "armv5-{{.*}} "-target-cpu" "arm10tdmi"
+
+// RUN: %clang -target arm -march=Armv6t2 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CASE-INSENSITIVE-V6T2-THUMB %s
+// RUN: %clang -target arm -march=ARMV6T2 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CASE-INSENSITIVE-V6T2-THUMB %s
+// CHECK-CASE-INSENSITIVE-V6T2-THUMB: "-cc1"{{.*}} "-triple" "thumbv6t2-{{.*}} "-target-cpu" "arm1156t2-s"
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