Completely disable tail calls when fast-isel is enabled, as fast-isel
doesn't currently support dealing with this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112341 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/tailcall-fastisel.ll b/test/CodeGen/X86/tailcall-fastisel.ll
index d54fb41..7f92af4 100644
--- a/test/CodeGen/X86/tailcall-fastisel.ll
+++ b/test/CodeGen/X86/tailcall-fastisel.ll
@@ -1,8 +1,6 @@
-; RUN: llc < %s -march=x86-64 -tailcallopt -fast-isel | grep TAILCALL
+; RUN: llc < %s -march=x86-64 -tailcallopt -fast-isel | not grep TAILCALL
-; Fast-isel shouldn't attempt to handle this tail call, and it should
-; cleanly terminate instruction selection in the block after it's
-; done to avoid emitting invalid MachineInstrs.
+; Fast-isel shouldn't attempt to cope with tail calls.
%0 = type { i64, i32, i8* }
@@ -11,3 +9,11 @@
%tmp20 = tail call fastcc i8* @"visit_array_aux<`Reference>"(%0 %arg, i32 undef) ; <i8*> [#uses=1]
ret i8* %tmp20
}
+
+define i32 @foo() nounwind {
+entry:
+ %0 = tail call i32 (...)* @bar() nounwind ; <i32> [#uses=1]
+ ret i32 %0
+}
+
+declare i32 @bar(...) nounwind