From: Daniel Dunbar <daniel@zuster.org>
Date: Tue, 10 Aug 2010 17:39:05 +0000 (+0000)
Subject: Driver/FreeBSD: Infer the right arch name in the presence of -m32,-m64, for the
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9d5600a8349cdda4e4971ebbbf7aa15a9da8bba7;p=clang

Driver/FreeBSD: Infer the right arch name in the presence of -m32,-m64, for the
cases we care about.
 - This is eventually going to be unified outside the host specific code.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110693 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Driver/HostInfo.cpp b/lib/Driver/HostInfo.cpp
index 62358f84a5..cf5e382e60 100644
--- a/lib/Driver/HostInfo.cpp
+++ b/lib/Driver/HostInfo.cpp
@@ -345,8 +345,20 @@ ToolChain *FreeBSDHostInfo::CreateToolChain(const ArgList &Args,
   assert(!ArchName &&
          "Unexpected arch name on platform without driver driver support.");
 
+  // Automatically handle some instances of -m32/-m64 we know about.
   std::string Arch = getArchName();
   ArchName = Arch.c_str();
+  if (Arg *A = Args.getLastArg(options::OPT_m32, options::OPT_m64)) {
+    if (Triple.getArch() == llvm::Triple::x86 ||
+        Triple.getArch() == llvm::Triple::x86_64) {
+      ArchName =
+        (A->getOption().matches(options::OPT_m32)) ? "i386" : "x86_64";
+    } else if (Triple.getArch() == llvm::Triple::ppc ||
+               Triple.getArch() == llvm::Triple::ppc64) {
+      ArchName =
+        (A->getOption().matches(options::OPT_m32)) ? "powerpc" : "powerpc64";
+    }
+  }
 
   ToolChain *&TC = ToolChains[ArchName];
   if (!TC) {
diff --git a/test/Driver/freebsd.c b/test/Driver/freebsd.c
index 3deee46f9a..e8bc223457 100644
--- a/test/Driver/freebsd.c
+++ b/test/Driver/freebsd.c
@@ -1,7 +1,21 @@
-// RUN: %clang -ccc-clang-archs "" -ccc-host-triple powerpc64-pc-freebsd8 %s -### 2> %t.log
-// RUN: cat %t.log
-// RUN: FileCheck -input-file %t.log %s
+// RUN: %clang -ccc-clang-archs "" -ccc-host-triple powerpc64-pc-freebsd8 %s -### 2> %t
+// RUN: FileCheck --check-prefix=CHECK-PPC < %t %s
+//
+// CHECK-PPC: clang{{.*}}" "-cc1" "-triple" "powerpc64-pc-freebsd8"
+// CHECK-PPC: as{{.*}}" "-o" "{{.*}}.o" "{{.*}}.s
+// CHECK-PPC: ld{{.*}}" "--eh-frame-hdr" "-dynamic-linker" "{{.*}}ld-elf{{.*}}" "-o" "a.out" "{{.*}}crt1.o" "{{.*}}crti.o" "{{.*}}crtbegin.o" "{{.*}}.o" "-lgcc" "--as-needed" "-lgcc_s" "--no-as-needed" "-lc" "-lgcc" "--as-needed" "-lgcc_s" "--no-as-needed" "{{.*}}crtend.o" "{{.*}}crtn.o"
 
-// CHECK: clang{{.*}}" "-cc1" "-triple" "powerpc64-pc-freebsd8"
-// CHECK: as{{.*}}" "-o" "{{.*}}.o" "{{.*}}.s
-// CHECK: ld{{.*}}" "--eh-frame-hdr" "-dynamic-linker" "{{.*}}ld-elf{{.*}}" "-o" "a.out" "{{.*}}crt1.o" "{{.*}}crti.o" "{{.*}}crtbegin.o" "{{.*}}.o" "-lgcc" "--as-needed" "-lgcc_s" "--no-as-needed" "-lc" "-lgcc" "--as-needed" "-lgcc_s" "--no-as-needed" "{{.*}}crtend.o" "{{.*}}crtn.o"
+
+// Check that -m32 properly adjusts the toolchain flags.
+//
+// RUN: %clang -ccc-host-triple x86_64-pc-freebsd8 -m32 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-LIB32 < %t %s
+//
+// CHECK-LIB32: clang{{.*}}" "-cc1" "-triple" "i386-pc-freebsd8"
+// CHECK-LIB32: as{{.*}}" "--32"
+// CHECK-LIB32: ld{{.*}}" {{.*}} "-m" "elf_i386_fbsd"
+//
+// RUN: %clang -ccc-host-triple x86_64-pc-freebsd8 -m32 -print-search-dirs %s > %t
+// RUN: FileCheck --check-prefix=CHECK-LIB32PATHS < %t %s
+//
+// CHECK-LIB32PATHS: libraries: ={{.*}}:/usr/lib32