Implement aliases. This fixes PR1017 and it's dependent bugs. CFE part

will follow.

llvm-svn: 36435

1 files changed, 30 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/X86/aliases.ll b/llvm/test/CodeGen/X86/aliases.ll
new file mode 100644
index 00000000000..33d30db89f5
--- /dev/null
+++ b/llvm/test/CodeGen/X86/aliases.ll
@@ -0,0 +1,30 @@
+; RUN: llvm-as < %s | \
+; RUN:   llc -mtriple=i686-pc-linux-gnu -o %t -f
+; RUN: grep -c set %t   | grep 4
+; RUN: grep -c globl %t | grep 3
+; RUN: grep -c weak %t  | grep 1
+
+@bar = external global i32
+@foo1 = alias i32* @bar
+@foo2 = alias i32* @bar
+
+%FunTy = type i32()
+
+declare i32 @foo_f()
+@bar_f = alias weak %FunTy* @foo_f
+
+@bar_i = alias internal i32* @bar
+
+define i32 @test() {
+entry:
+   %tmp = load i32* @foo1
+   %tmp1 = load i32* @foo2
+   %tmp0 = load i32* @bar_i
+   %tmp2 = call i32 @foo_f()
+   %tmp3 = add i32 %tmp, %tmp2
+   %tmp4 = call %FunTy* @bar_f()
+   %tmp5 = add i32 %tmp3, %tmp4
+   %tmp6 = add i32 %tmp1, %tmp5
+   %tmp7 = add i32 %tmp6, %tmp0
+   ret i32 %tmp7
+}