Implement function prefix data as an IR feature.

Previous discussion:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2013-July/063909.html

Differential Revision: http://llvm-reviews.chandlerc.com/D1191

llvm-svn: 190773

3 files changed, 42 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/X86/prefixdata.ll b/llvm/test/CodeGen/X86/prefixdata.ll
new file mode 100644
index 00000000000..2ffa89d287d
--- /dev/null
+++ b/llvm/test/CodeGen/X86/prefixdata.ll
@@ -0,0 +1,15 @@
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s
+
+@i = linkonce_odr global i32 1
+
+; CHECK: f:
+; CHECK-NEXT: .long	1
+define void @f() prefix i32 1 {
+  ret void
+}
+
+; CHECK: g:
+; CHECK-NEXT: .quad	i
+define void @g() prefix i32* @i {
+  ret void
+}
diff --git a/llvm/test/Feature/prefixdata.ll b/llvm/test/Feature/prefixdata.ll
new file mode 100644
index 00000000000..b53945c11ff
--- /dev/null
+++ b/llvm/test/Feature/prefixdata.ll
@@ -0,0 +1,18 @@
+; RUN: llvm-as < %s | llvm-dis > %t1.ll
+; RUN: FileCheck %s < %t1.ll
+; RUN: llvm-as < %t1.ll | llvm-dis > %t2.ll
+; RUN: diff %t1.ll %t2.ll
+; RUN: opt -O3 -S < %t1.ll | FileCheck %s
+
+; CHECK: @i
+@i = linkonce_odr global i32 1
+
+; CHECK: f(){{.*}}prefix i32 1
+define void @f() prefix i32 1 {
+  ret void
+}
+
+; CHECK: g(){{.*}}prefix i32* @i
+define void @g() prefix i32* @i {
+  ret void
+}
diff --git a/llvm/test/Linker/prefixdata.ll b/llvm/test/Linker/prefixdata.ll
new file mode 100644
index 00000000000..1f11dc7083e
--- /dev/null
+++ b/llvm/test/Linker/prefixdata.ll
@@ -0,0 +1,9 @@
+; RUN: echo > %t.ll
+; RUN: llvm-link %t.ll %s -S -o - | FileCheck %s
+
+@i = linkonce_odr global i32 1
+
+; CHECK: define void @f() prefix i32* @i
+define void @f() prefix i32* @i {
+  ret void
+}