[PowerPC] Make no-PIC default to match GCC - CLANG

Make -fno-PIC default on PowerPC for Little Endian Linux.

Differential Revision: https://reviews.llvm.org/D53384

llvm-svn: 349489

3 files changed, 41 insertions, 5 deletions

diff --git a/clang/lib/Driver/ToolChains/Gnu.cpp b/clang/lib/Driver/ToolChains/Gnu.cpp
index 3850e1c02ec..fbd4dc72e55 100644
--- a/clang/lib/Driver/ToolChains/Gnu.cpp
+++ b/clang/lib/Driver/ToolChains/Gnu.cpp
@@ -2435,7 +2435,7 @@ bool Generic_GCC::isPICDefault() const {
   case llvm::Triple::x86_64:
     return getTriple().isOSWindows();
   case llvm::Triple::ppc64:
-  case llvm::Triple::ppc64le:
+    // Big endian PPC is PIC by default
     return !getTriple().isOSBinFormatMachO() && !getTriple().isMacOSX();
   case llvm::Triple::mips64:
   case llvm::Triple::mips64el:
diff --git a/clang/test/Driver/clang-offload-bundler.c b/clang/test/Driver/clang-offload-bundler.c
index adf13f59d46..15092dd1277 100644
--- a/clang/test/Driver/clang-offload-bundler.c
+++ b/clang/test/Driver/clang-offload-bundler.c
@@ -115,7 +115,7 @@
 // CK-TEXTI: // __CLANG_OFFLOAD_BUNDLE____END__ openmp-x86_64-pc-linux-gnu
 
 // CK-TEXTLL: ; __CLANG_OFFLOAD_BUNDLE____START__ host-powerpc64le-ibm-linux-gnu
-// CK-TEXTLL: @A = global i32 0
+// CK-TEXTLL: @A = dso_local global i32 0
 // CK-TEXTLL: define {{.*}}@test_func()
 // CK-TEXTLL: ; __CLANG_OFFLOAD_BUNDLE____END__ host-powerpc64le-ibm-linux-gnu
 // CK-TEXTLL: ; __CLANG_OFFLOAD_BUNDLE____START__ openmp-powerpc64le-ibm-linux-gnu
diff --git a/clang/test/Driver/ppc-abi.c b/clang/test/Driver/ppc-abi.c
index cebc90d3f99..a82a01de278 100644
--- a/clang/test/Driver/ppc-abi.c
+++ b/clang/test/Driver/ppc-abi.c
@@ -13,12 +13,12 @@
 // RUN: %clang -target powerpc64-unknown-linux-gnu %s -### -o %t.o 2>&1 \
 // RUN:   -mcpu=a2q -mno-qpx | FileCheck -check-prefix=CHECK-ELFv1 %s
 // RUN: %clang -target powerpc64-unknown-linux-gnu %s -### -o %t.o 2>&1 \
-// RUN:   -mabi=elfv2 | FileCheck -check-prefix=CHECK-ELFv2 %s
+// RUN:   -mabi=elfv2 | FileCheck -check-prefix=CHECK-ELFv2-BE %s
 
 // RUN: %clang -target powerpc64le-unknown-linux-gnu %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck -check-prefix=CHECK-ELFv2 %s
 // RUN: %clang -target powerpc64le-unknown-linux-gnu %s -### -o %t.o 2>&1 \
-// RUN:   -mabi=elfv1 | FileCheck -check-prefix=CHECK-ELFv1 %s
+// RUN:   -mabi=elfv1 | FileCheck -check-prefix=CHECK-ELFv1-LE %s
 // RUN: %clang -target powerpc64le-unknown-linux-gnu %s -### -o %t.o 2>&1 \
 // RUN:   -mabi=elfv2 | FileCheck -check-prefix=CHECK-ELFv2 %s
 // RUN: %clang -target powerpc64le-unknown-linux-gnu %s -### -o %t.o 2>&1 \
@@ -26,8 +26,44 @@
 
 // CHECK-ELFv1: "-mrelocation-model" "pic" "-pic-level" "2"
 // CHECK-ELFv1: "-target-abi" "elfv1"
+// CHECK-ELFv1-LE: "-mrelocation-model" "static"
+// CHECK-ELFv1-LE: "-target-abi" "elfv1"
 // CHECK-ELFv1-QPX: "-mrelocation-model" "pic" "-pic-level" "2"
 // CHECK-ELFv1-QPX: "-target-abi" "elfv1-qpx"
-// CHECK-ELFv2: "-mrelocation-model" "pic" "-pic-level" "2"
+// CHECK-ELFv2: "-mrelocation-model" "static"
 // CHECK-ELFv2: "-target-abi" "elfv2"
+// CHECK-ELFv2-BE: "-mrelocation-model" "pic" "-pic-level" "2"
+// CHECK-ELFv2-BE: "-target-abi" "elfv2"
+
+// RUN: %clang -fPIC -target powerpc64-unknown-linux-gnu %s -### -o %t.o 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-ELFv1-PIC %s
+// RUN: %clang -fPIC -target powerpc64-unknown-linux-gnu %s -### -o %t.o 2>&1 \
+// RUN:   -mabi=elfv1 | FileCheck -check-prefix=CHECK-ELFv1-PIC %s
+// RUN: %clang -fPIC -target powerpc64-unknown-linux-gnu %s -### -o %t.o 2>&1 \
+// RUN:   -mabi=elfv1-qpx | FileCheck -check-prefix=CHECK-ELFv1-QPX-PIC %s
+// RUN: %clang -fPIC -target powerpc64-unknown-linux-gnu %s -### -o %t.o 2>&1 \
+// RUN:   -mcpu=a2q | FileCheck -check-prefix=CHECK-ELFv1-QPX-PIC %s
+// RUN: %clang -fPIC -target powerpc64-unknown-linux-gnu %s -### -o %t.o 2>&1 \
+// RUN:   -mcpu=a2 -mqpx | FileCheck -check-prefix=CHECK-ELFv1-QPX-PIC %s
+// RUN: %clang -fPIC -target powerpc64-unknown-linux-gnu %s -### -o %t.o 2>&1 \
+// RUN:   -mcpu=a2q -mno-qpx | FileCheck -check-prefix=CHECK-ELFv1-PIC %s
+// RUN: %clang -fPIC -target powerpc64-unknown-linux-gnu %s -### -o %t.o 2>&1 \
+// RUN:   -mabi=elfv2 | FileCheck -check-prefix=CHECK-ELFv2-PIC %s
+
+// RUN: %clang -fPIC -target powerpc64le-unknown-linux-gnu %s -### -o %t.o 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-ELFv2-PIC %s
+// RUN: %clang -fPIC -target powerpc64le-unknown-linux-gnu %s -### -o %t.o 2>&1 \
+// RUN:   -mabi=elfv1 | FileCheck -check-prefix=CHECK-ELFv1-PIC %s
+// RUN: %clang -fPIC -target powerpc64le-unknown-linux-gnu %s -### -o %t.o 2>&1 \
+// RUN:   -mabi=elfv2 | FileCheck -check-prefix=CHECK-ELFv2-PIC %s
+// RUN: %clang -fPIC -target powerpc64le-unknown-linux-gnu %s -### -o %t.o 2>&1 \
+// RUN:   -mabi=altivec | FileCheck -check-prefix=CHECK-ELFv2-PIC %s
+
+// CHECK-ELFv1-PIC: "-mrelocation-model" "pic" "-pic-level" "2"
+// CHECK-ELFv1-PIC: "-target-abi" "elfv1"
+// CHECK-ELFv1-QPX-PIC: "-mrelocation-model" "pic" "-pic-level" "2"
+// CHECK-ELFv1-QPX-PIC: "-target-abi" "elfv1-qpx"
+// CHECK-ELFv2-PIC: "-mrelocation-model" "pic" "-pic-level" "2"
+// CHECK-ELFv2-PIC: "-target-abi" "elfv2"
+