Fix @llvm.frameaddress codegen. FP elimination optimization should be disabled when frame address is desired. Also add support for depth > 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56683 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/x86-frameaddr.ll b/test/CodeGen/X86/x86-frameaddr.ll
new file mode 100644
index 0000000..b9d6d13
--- /dev/null
+++ b/test/CodeGen/X86/x86-frameaddr.ll
@@ -0,0 +1,9 @@
+; RUN: llvm-as < %s | llc -march=x86 | grep mov | grep ebp
+
+define i8* @t() nounwind {
+entry:
+ %0 = tail call i8* @llvm.frameaddress(i32 0)
+ ret i8* %0
+}
+
+declare i8* @llvm.frameaddress(i32) nounwind readnone