Infer relocation model from module flags in relocatable LTO link.

Fix for PR33096.

llvm-svn: 303578

1 files changed, 63 insertions, 0 deletions

diff --git a/llvm/test/tools/gold/X86/relocation-model-pic.ll b/llvm/test/tools/gold/X86/relocation-model-pic.ll
new file mode 100644
index 00000000000..65b7beecc22
--- /dev/null
+++ b/llvm/test/tools/gold/X86/relocation-model-pic.ll
@@ -0,0 +1,63 @@
+; RUN: cat %s >%t.pic.ll
+; RUN: echo '!llvm.module.flags = !{!0}' >>%t.pic.ll
+; RUN: echo '!0 = !{i32 1, !"PIC Level", i32 2}' >>%t.pic.ll
+
+; RUN: llvm-as %s -o %t.o
+; RUN: llvm-as %t.pic.ll -o %t.pic.o
+
+;; Non-PIC source.
+
+; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold.so \
+; RUN:    --shared \
+; RUN:    --plugin-opt=save-temps %t.o -o %t-out
+; RUN: llvm-readobj -r %t-out.o | FileCheck %s --check-prefix=PIC
+
+; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold.so \
+; RUN:    --export-dynamic --noinhibit-exec -pie \
+; RUN:    --plugin-opt=save-temps %t.o -o %t-out
+; RUN: llvm-readobj -r %t-out.o | FileCheck %s --check-prefix=PIC
+
+; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold.so \
+; RUN:    --export-dynamic --noinhibit-exec \
+; RUN:    --plugin-opt=save-temps %t.o -o %t-out
+; RUN: llvm-readobj -r %t-out.o | FileCheck %s --check-prefix=STATIC
+
+; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold.so \
+; RUN:    -r \
+; RUN:    --plugin-opt=save-temps %t.o -o %t-out
+; RUN: llvm-readobj -r %t-out.o | FileCheck %s --check-prefix=STATIC
+
+;; PIC source.
+
+; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold.so \
+; RUN:    --shared \
+; RUN:    --plugin-opt=save-temps %t.pic.o -o %t-out
+; RUN: llvm-readobj -r %t-out.o | FileCheck %s --check-prefix=PIC
+
+; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold.so \
+; RUN:    --export-dynamic --noinhibit-exec -pie \
+; RUN:    --plugin-opt=save-temps %t.pic.o -o %t-out
+; RUN: llvm-readobj -r %t-out.o | FileCheck %s --check-prefix=PIC
+
+; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold.so \
+; RUN:    --export-dynamic --noinhibit-exec \
+; RUN:    --plugin-opt=save-temps %t.pic.o -o %t-out
+; RUN: llvm-readobj -r %t-out.o | FileCheck %s --check-prefix=STATIC
+
+; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold.so \
+; RUN:    -r \
+; RUN:    --plugin-opt=save-temps %t.pic.o -o %t-out
+; RUN: llvm-readobj -r %t-out.o | FileCheck %s --check-prefix=PIC
+
+
+; PIC: R_X86_64_GOTPCREL foo
+; STATIC: R_X86_64_PC32 foo
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+@foo = external global i32
+define i32 @main() {
+  %t = load i32, i32* @foo
+  ret i32 %t
+}