new testcase, for PR672

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24584 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/2005-12-03-IndirectTailCall.ll b/test/CodeGen/X86/2005-12-03-IndirectTailCall.ll
new file mode 100644 (file)
index 0000000..77a21f4
--- /dev/null
+++ b/test/CodeGen/X86/2005-12-03-IndirectTailCall.ll
@@ -0,0 +1,24 @@
+; RUN: llvm-as < %s | llc -march=x86 -enable-x86-fastcc | grep 'jmp \*%ecx'
+declare int %putchar(int)
+
+int %main(){ 
+ %f   = cast int (int, int*, int)* %check_tail to int*
+ %res = tail call fastcc int %check_tail( int 10, int* %f,int 10)
+ ret int %res
+}
+
+fastcc int %check_tail(int %x, int* %f, int %g) {
+        %tmp1 = setgt int %x, 0
+        br bool %tmp1, label %if-then, label %if-else
+
+if-then:
+        %fun_ptr = cast int* %f to int(int, int*, int)* 
+        %arg1    = add int %x, -1
+        call int %putchar(int 90)       
+        %res = tail call fastcc int %fun_ptr( int %arg1, int * %f, int %g)
+        ret int %res
+
+if-else:
+        ret int %x
+}
+