From b7e711838f8d6445f1ad7fa032515ad472060c84 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Thu, 18 Oct 2001 21:55:07 +0000
Subject: [PATCH] Check in new testcase based on .c file.  Adapted to run with
 lli

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@908 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/ackermann.c  | 23 ++++++++++++
 test/ackermann.ll | 92 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 115 insertions(+)
 create mode 100644 test/ackermann.c
 create mode 100644 test/ackermann.ll

diff --git a/test/ackermann.c b/test/ackermann.c
new file mode 100644
index 00000000000..5e1bd489441
--- /dev/null
+++ b/test/ackermann.c
@@ -0,0 +1,23 @@
+/* -*- mode: c -*-
+ * $Id$
+ * http://www.bagley.org/~doug/shootout/
+ */
+
+int printf(const char *, int, int);
+int atoi(const char *);
+
+int 
+Ack(int M, int N) {
+    if (M == 0) return( N + 1 );
+    if (N == 0) return( Ack(M - 1, 1) );
+    return( Ack(M - 1, Ack(M, (N - 1))) );
+}
+
+int
+main(int argc, char *argv[]) {
+    int n = ((argc == 2) ? atoi(argv[1]) : 5);
+
+    printf("Ack(3,%d): %d\n", n, Ack(3, n));
+    return(0);
+}
+
diff --git a/test/ackermann.ll b/test/ackermann.ll
new file mode 100644
index 00000000000..508b5861d99
--- /dev/null
+++ b/test/ackermann.ll
@@ -0,0 +1,92 @@
+%__intern_LC0 = global [sbyte] c"Ack(3, \00"
+%__intern_LC1 = global [sbyte] c") = \00"
+%__intern_LC2 = global [sbyte] c"\0A\00"		; <[15 x sbyte] *>	[#uses=1]
+implementation
+
+declare void "__main"()
+
+declare void "printVal"([sbyte] *)
+declare void "printVal"(int)
+
+declare int "atoi"(sbyte *)
+
+int "main"(int %argc, sbyte * * %argv)
+begin
+bb1:					;[#uses=1]
+	call void () * %__main( )
+	%cond1002 = setne int %argc, 2		; <bool>	[#uses=1]
+	br bool %cond1002, label %bb4, label %bb2
+
+bb2:					;[#uses=2]
+	%cast1010 = cast ulong 8 to sbyte * *		; <sbyte * *>	[#uses=1]
+	%reg1003 = add sbyte * * %argv, %cast1010		; <sbyte * *>	[#uses=1]
+	%reg110 = load sbyte * * %reg1003		; <sbyte *>	[#uses=1]
+	%reg109 = call int (sbyte *) * %atoi( sbyte * %reg110 )		; <int>	[#uses=1]
+	br label %bb4
+
+bb4:					;[#uses=2]
+	%reg132 = phi int [ %reg109, %bb2 ], [ 5, %bb1 ]		; <int>	[#uses=4]
+	%cond1004 = setne ulong 3, 0		; <bool>	[#uses=1]
+	br bool %cond1004, label %bb6, label %bb5
+
+bb5:					;[#uses=2]
+	%reg115 = add int %reg132, 1		; <int>	[#uses=1]
+	br label %bb9
+
+bb6:					;[#uses=1]
+	%cond1005 = setne int %reg132, 0		; <bool>	[#uses=1]
+	br bool %cond1005, label %bb8, label %bb7
+
+bb7:					;[#uses=2]
+	%cast1006 = cast ulong 1 to int		; <int>	[#uses=1]
+	%cast1007 = cast ulong 2 to int		; <int>	[#uses=1]
+	%reg119 = call int (int, int) * %Ack( int %cast1007, int %cast1006 )		; <int>	[#uses=1]
+	br label %bb9
+
+bb8:					;[#uses=2]
+	%reg121 = add int %reg132, -1		; <int>	[#uses=1]
+	%cast1008 = cast ulong 3 to int		; <int>	[#uses=1]
+	%reg122 = call int (int, int) * %Ack( int %cast1008, int %reg121 )		; <int>	[#uses=1]
+	%cast1009 = cast ulong 2 to int		; <int>	[#uses=1]
+	%reg124 = call int (int, int) * %Ack( int %cast1009, int %reg122 )		; <int>	[#uses=1]
+	br label %bb9
+
+bb9:					;[#uses=3]
+	%reg135 = phi int [ %reg124, %bb8 ], [ %reg119, %bb7 ], [ %reg115, %bb5 ]		; <int>	[#uses=1]
+	call void %printVal([sbyte] *%__intern_LC0)
+	call void %printVal(int %reg132)
+	call void %printVal([sbyte] *%__intern_LC1)
+	call void %printVal(int %reg135)
+	call void %printVal([sbyte] *%__intern_LC2)
+	ret int 0
+end
+
+int "Ack"(int %M, int %N)
+begin
+bb1:					;[#uses=2]
+	br label %bb2
+
+bb2:					;[#uses=3]
+	%reg121 = phi int [ %reg117, %bb6 ], [ 1, %bb5 ], [ %N, %bb1 ]		; <int>	[#uses=3]
+	%reg122 = phi int [ %reg115, %bb6 ], [ %reg123, %bb5 ], [ %M, %bb1 ]		; <int>	[#uses=4]
+	%cond1000 = setne int %reg122, 0		; <bool>	[#uses=1]
+	br bool %cond1000, label %bb4, label %bb3
+
+bb3:					;[#uses=1]
+	%reg109 = add int %reg121, 1		; <int>	[#uses=1]
+	ret int %reg109
+
+bb4:					;[#uses=1]
+	%cond1001 = setne int %reg121, 0		; <bool>	[#uses=1]
+	br bool %cond1001, label %bb6, label %bb5
+
+bb5:					;[#uses=3]
+	%reg123 = add int %reg122, -1		; <int>	[#uses=1]
+	br label %bb2
+
+bb6:					;[#uses=3]
+	%reg115 = add int %reg122, -1		; <int>	[#uses=1]
+	%reg116 = add int %reg121, -1		; <int>	[#uses=1]
+	%reg117 = call int (int, int) * %Ack( int %reg122, int %reg116 )		; <int>	[#uses=1]
+	br label %bb2
+end