Cherry-picking r168297 pic.c

git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_32@168917 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 116 insertions, 76 deletions

diff --git a/test/Driver/pic.c b/test/Driver/pic.c
index efe525e555..54e5982c08 100644
--- a/test/Driver/pic.c
+++ b/test/Driver/pic.c
@@ -5,28 +5,34 @@
 // CHECK-NO-PIC-NOT: "-pic-level"
 // CHECK-NO-PIC-NOT: "-pie-level"
 //
-// CHECK-DYNAMIC-NO-PIC1: "-mrelocation-model" "dynamic-no-pic"
-// CHECK-DYNAMIC-NO-PIC1: "-pic-level" "1"
-//
-// CHECK-DYNAMIC-NO-PIC2: "-mrelocation-model" "dynamic-no-pic"
-// CHECK-DYNAMIC-NO-PIC2: "-pic-level" "2"
-//
-// CHECK-PIC1-NOT: "-mrelocation-model"
+// CHECK-PIC1: "-mrelocation-model" "pic"
 // CHECK-PIC1: "-pic-level" "1"
 //
-// CHECK-PIC2-NOT: "-mrelocation-model"
+// CHECK-PIC2: "-mrelocation-model" "pic"
 // CHECK-PIC2: "-pic-level" "2"
 //
-// CHECK-PIE1-NOT: "-mrelocation-model"
+// CHECK-PIE1: "-mrelocation-model" "pic"
+// CHECK-PIE1: "-pic-level" "1"
 // CHECK-PIE1: "-pie-level" "1"
 //
-// CHECK-PIE2-NOT: "-mrelocation-model"
+// CHECK-PIE2: "-mrelocation-model" "pic"
+// CHECK-PIE2: "-pic-level" "2"
 // CHECK-PIE2: "-pie-level" "2"
 //
-// CHECK-PIE3: "{{.*}}ld{{(.exe)?}}"
-// CHECK-PIE3: "-pie"
-// CHECK-PIE3: "Scrt1.o" "crti.o" "crtbeginS.o"
-// CHECK-PIE3: "crtendS.o" "crtn.o"
+// CHECK-PIE-LD: "{{.*}}ld{{(.exe)?}}"
+// CHECK-PIE-LD: "-pie"
+// CHECK-PIE-LD: "Scrt1.o" "crti.o" "crtbeginS.o"
+// CHECK-PIE-LD: "crtendS.o" "crtn.o"
+//
+// CHECK-DYNAMIC-NO-PIC-32: "-mrelocation-model" "dynamic-no-pic"
+// CHECK-DYNAMIC-NO-PIC-32-NOT: "-pic-level"
+// CHECK-DYNAMIC-NO-PIC-32-NOT: "-pie-level"
+//
+// CHECK-DYNAMIC-NO-PIC-64: "-mrelocation-model" "dynamic-no-pic"
+// CHECK-DYNAMIC-NO-PIC-64: "-pic-level" "2"
+// CHECK-DYNAMIC-NO-PIC-64-NOT: "-pie-level"
+//
+// CHECK-NON-DARWIN-DYNAMIC-NO-PIC: error: unsupported option '-mdynamic-no-pic' for target 'i386-unknown-unknown'
 //
 // RUN: %clang -c %s -target i386-unknown-unknown -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
@@ -38,107 +44,141 @@
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIE1
 // RUN: %clang -c %s -target i386-unknown-unknown -fPIE -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIE2
+//
+// Check that PIC and PIE flags obey last-match-wins. If the last flag is
+// a no-* variant, regardless of which variant or which flags precede it, we
+// get no PIC.
 // RUN: %clang -c %s -target i386-unknown-unknown -fpic -fno-pic -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
-// RUN: %clang -c %s -target i386-unknown-unknown -fPIC -fno-PIC -### 2>&1 \
+// RUN: %clang -c %s -target i386-unknown-unknown -fPIC -fno-pic -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
+// RUN: %clang -c %s -target i386-unknown-unknown -fpie -fno-pic -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
+// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fno-pic -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
 // RUN: %clang -c %s -target i386-unknown-unknown -fpic -fno-PIC -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
-// RUN: %clang -c %s -target i386-unknown-unknown -fPIC -fno-pic -### 2>&1 \
+// RUN: %clang -c %s -target i386-unknown-unknown -fPIC -fno-PIC -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
+// RUN: %clang -c %s -target i386-unknown-unknown -fpie -fno-PIC -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
+// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fno-PIC -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
+// RUN: %clang -c %s -target i386-unknown-unknown -fpic -fno-pie -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
+// RUN: %clang -c %s -target i386-unknown-unknown -fPIC -fno-pie -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
 // RUN: %clang -c %s -target i386-unknown-unknown -fpie -fno-pie -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
-// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fno-PIE -### 2>&1 \
+// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fno-pie -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
+// RUN: %clang -c %s -target i386-unknown-unknown -fpic -fno-PIE -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
+// RUN: %clang -c %s -target i386-unknown-unknown -fPIC -fno-PIE -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
 // RUN: %clang -c %s -target i386-unknown-unknown -fpie -fno-PIE -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
-// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fno-pie -### 2>&1 \
+// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fno-PIE -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
-// RUN: %clang -c %s -target i386-unknown-unknown -fpie -fno-pic -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIC1
-// RUN: %clang -c %s -target i386-unknown-unknown -fpie -fno-pic -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIE1
-// RUN: %clang -c %s -target i386-unknown-unknown -fpic -fno-pie -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIC1
-// RUN: %clang -c %s -target i386-unknown-unknown -fpic -fPIC -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
-// RUN: %clang -c %s -target i386-unknown-unknown -fPIC -fpic -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIC1
-// RUN: %clang -c %s -target i386-unknown-unknown -fpic -fPIE -fpie -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIE1
-// RUN: %clang -c %s -target i386-unknown-unknown -fpie -fPIC -fPIE -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIE2
 //
-// Cases where both pic and pie are specified
-// RUN: %clang -c %s -target i386-unknown-unknown -fpic -fpie -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIC1
-// RUN: %clang -c %s -target i386-unknown-unknown -fpic -fpie -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIE1
+// Last-match-wins where both pic and pie are specified.
 // RUN: %clang -c %s -target i386-unknown-unknown -fpie -fpic -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC1
-// RUN: %clang -c %s -target i386-unknown-unknown -fpie -fpic -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIE1
-// RUN: %clang -c %s -target i386-unknown-unknown -fpic -fPIE -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
-// RUN: %clang -c %s -target i386-unknown-unknown -fpic -fPIE -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIE2
-// RUN: %clang -c %s -target i386-unknown-unknown -fpie -fPIC -### 2>&1 \
+// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fpic -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC1
 // RUN: %clang -c %s -target i386-unknown-unknown -fpie -fPIC -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIE1
-// RUN: %clang -c %s -target i386-unknown-unknown -fpie -fPIE -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
-// RUN: %clang -c %s -target i386-unknown-unknown -fpie -fPIE -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIE2
-// RUN: %clang -c %s -target i386-unknown-unknown -fPIC -fpie -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIC1
+// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fPIC -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target i386-unknown-unknown -fpic -fpie -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIE1
 // RUN: %clang -c %s -target i386-unknown-unknown -fPIC -fpie -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIE1
-// RUN: %clang -c %s -target i386-unknown-unknown -fPIC -fPIE -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target i386-unknown-unknown -fpic -fPIE -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIE2
 // RUN: %clang -c %s -target i386-unknown-unknown -fPIC -fPIE -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIE2
-// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fpic -### 2>&1 \
+//
+// Last-match-wins when selecting level 1 vs. level 2.
+// RUN: %clang -c %s -target i386-unknown-unknown -fpic -fPIC -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
-// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fpic -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIE2
-// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fpie -### 2>&1 \
+// RUN: %clang -c %s -target i386-unknown-unknown -fPIC -fpic -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC1
-// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fpie -### 2>&1 \
+// RUN: %clang -c %s -target i386-unknown-unknown -fpic -fPIE -fpie -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIE1
-// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fPIC -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
-// RUN: %clang -c %s -target i386-unknown-unknown -fPIE -fPIC -### 2>&1 \
+// RUN: %clang -c %s -target i386-unknown-unknown -fpie -fPIC -fPIE -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIE2
 //
-// Defaults change for Darwin.
-// RUN: %clang -c %s -target i386-apple-darwin -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
-// RUN: %clang -c %s -target i386-apple-darwin -fno-pic -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
-// RUN: %clang -c %s -target i386-apple-darwin -fno-PIC -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
-//
 // Make sure -pie is passed to along to ld and that the right *crt* files
 // are linked in.
 // RUN: %clang %s -target i386-unknown-freebsd -fPIE -pie -### \
 // RUN: --sysroot=%S/Inputs/basic_freebsd_tree 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIE3
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIE-LD
 // RUN: %clang %s -target i386-linux-gnu -fPIE -pie -### \
 // RUN: --sysroot=%S/Inputs/basic_linux_tree 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-PIE3
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIE-LD
+// RUN: %clang %s -target i386-linux-gnu -fPIC -pie -### \
+// RUN: --sysroot=%S/Inputs/basic_linux_tree 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIE-LD
 //
 // Disregard any of the PIC-specific flags if we have a trump-card flag.
 // RUN: %clang -c %s -target i386-unknown-unknown -mkernel -fPIC -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
 // RUN: %clang -c %s -target i386-unknown-unknown -static -fPIC -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
-// RUN: %clang -c %s -target i386-unknown-unknown -mdynamic-no-pic -fPIC -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-DYNAMIC-NO-PIC1
-// RUN: %clang -c %s -target i386-apple-darwin -mdynamic-no-pic -fPIC -### 2>&1 \
-// RUN:   | FileCheck %s --check-prefix=CHECK-DYNAMIC-NO-PIC2
-
-// Checks for ARM
+//
+// Darwin is a beautiful and unique snowflake when it comes to these flags.
+// When targetting a 32-bit darwin system, the -fno-* flag variants work and
+// disable PIC, but any other flag enables PIC (*not* PIE) even if the flag
+// specifies PIE. On 64-bit targets, there is simply nothing you can do, there
+// is no PIE, there is only PIC when it comes to compilation.
+// RUN: %clang -c %s -target i386-apple-darwin -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target i386-apple-darwin -fpic -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target i386-apple-darwin -fPIC -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target i386-apple-darwin -fpie -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target i386-apple-darwin -fPIE -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target i386-apple-darwin -fno-PIC -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
+// RUN: %clang -c %s -target i386-apple-darwin -fno-PIE -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
+// RUN: %clang -c %s -target i386-apple-darwin -fno-PIC -fpic -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target i386-apple-darwin -fno-PIC -fPIE -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target x86_64-apple-darwin -fno-PIC -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target x86_64-apple-darwin -fno-PIE -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target x86_64-apple-darwin -fpic -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+// RUN: %clang -c %s -target x86_64-apple-darwin -fPIE -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
+//
+// Darwin gets even more special with '-mdynamic-no-pic'. This flag is only
+// valid on Darwin, and it's behavior is very strange but needs to remain
+// consistent for compatibility.
+// RUN: %clang -c %s -target i386-unknown-unknown -mdynamic-no-pic -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-NON-DARWIN-DYNAMIC-NO-PIC
+// RUN: %clang -c %s -target i386-apple-darwin -mdynamic-no-pic -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-DYNAMIC-NO-PIC-32
+// RUN: %clang -c %s -target i386-apple-darwin -mdynamic-no-pic -fno-pic -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-DYNAMIC-NO-PIC-32
+// RUN: %clang -c %s -target i386-apple-darwin -mdynamic-no-pic -fpie -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-DYNAMIC-NO-PIC-32
+// RUN: %clang -c %s -target x86_64-apple-darwin -mdynamic-no-pic -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-DYNAMIC-NO-PIC-64
+// RUN: %clang -c %s -target x86_64-apple-darwin -mdynamic-no-pic -fno-pic -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-DYNAMIC-NO-PIC-64
+// RUN: %clang -c %s -target x86_64-apple-darwin -mdynamic-no-pic -fpie -### 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-DYNAMIC-NO-PIC-64
+//
+// Checks for ARM+Apple+IOS including -fapple-kext, -mkernel, and iphoneos
+// version boundaries.
 // RUN: %clang -c %s -target armv7-apple-ios -fapple-kext -miphoneos-version-min=6.0.0 -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
 // RUN: %clang -c %s -target armv7-apple-ios -mkernel -miphoneos-version-min=6.0.0 -### 2>&1 \