[AArch64][clang] Pass cpu/arch information to assembler for AArch64.

Summary:
Pass Cpu/Arch options to assembler for AArch64 with no-integrated-as.
This fixes PR20019.

Reviewers: richard.barton.arm, kristof.beyls, rengolin

Reviewed By: rengolin

Subscribers: srhines, pirama, aemerson, rengolin, cfe-commits

Differential Revision: https://reviews.llvm.org/D32132

llvm-svn: 300571

diff --git a/clang/lib/Driver/ToolChains/Gnu.cpp b/clang/lib/Driver/ToolChains/Gnu.cpp
index 549e24cbd2b32cc246c969862cf9d2f33cc81c35..165439538ebaa8941af38984a5fdfdda45b4eae9 100644 (file)
--- a/clang/lib/Driver/ToolChains/Gnu.cpp
+++ b/clang/lib/Driver/ToolChains/Gnu.cpp
@@ -770,6 +770,12 @@ void tools::gnutools::Assembler::ConstructJob(Compilation &C,
     Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ);
     break;
   }
+  case llvm::Triple::aarch64:
+  case llvm::Triple::aarch64_be: {
+    Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
+    Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ);
+    break;
+  }
   case llvm::Triple::mips:
   case llvm::Triple::mipsel:
   case llvm::Triple::mips64:

diff --git a/clang/test/Driver/linux-as.c b/clang/test/Driver/linux-as.c
index a07abc17e52f8cced8e8dd49f95fc89fdddd8ceb..c5cb1cd600b0fb9307f55824344f92aeaa870cdc 100644 (file)
--- a/clang/test/Driver/linux-as.c
+++ b/clang/test/Driver/linux-as.c
@@ -100,6 +100,33 @@
 // RUN:   | FileCheck -check-prefix=CHECK-ARM-HARDFP %s
 // CHECK-ARM-HARDFP: as{{(.exe)?}}" "-mfloat-abi=hard"
 //
+// RUN: %clang -target aarch64-linux-gnu -mcpu=cortex-a53 -### \
+// RUN:   -no-integrated-as -c %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-ARM64-MCPU %s
+// CHECK-ARM64-MCPU: as{{(.exe)?}}" "-mcpu=cortex-a53"
+//
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a -### \
+// RUN:   -no-integrated-as -c %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-ARM64-MARCH %s
+// CHECK-ARM64-MARCH: as{{(.exe)?}}" "-march=armv8-a"
+//
+// RUN: %clang -target aarch64-linux-gnu -mcpu=cortex-a53 -march=armv8-a -### \
+// RUN:   -no-integrated-as -c %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-ARM64-ALL %s
+// CHECK-ARM64-ALL: as{{(.exe)?}}" "-march=armv8-a" "-mcpu=cortex-a53"
+//
+// RUN: %clang -target aarch64_be-linux-gnu -mcpu=cortex-a53 -### \
+// RUN:   -no-integrated-as -c %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-ARM64-MCPU %s
+//
+// RUN: %clang -target aarch64_be-linux-gnu -march=armv8-a -### \
+// RUN:   -no-integrated-as -c %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-ARM64-MARCH %s
+//
+// RUN: %clang -target aarch64_be-linux-gnu -mcpu=cortex-a53 -march=armv8-a -### \
+// RUN:   -no-integrated-as -c %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-ARM64-ALL %s
+//
 // RUN: %clang -target ppc-linux -mcpu=invalid-cpu -### \
 // RUN:   -no-integrated-as -c %s 2>&1 \
 // RUN:   | FileCheck -check-prefix=CHECK-PPC-NO-MCPU %s