Simple hand-coded tests to aid in early development of backends, along with a

Makefile to run ad-hoc tests easily.

llvm-svn: 15664

1 files changed, 33 insertions, 0 deletions

diff --git a/llvm/test/Regression/CodeGen/Generic/print-shift.ll b/llvm/test/Regression/CodeGen/Generic/print-shift.ll
new file mode 100644
index 00000000000..71bbbd1350c
--- /dev/null
+++ b/llvm/test/Regression/CodeGen/Generic/print-shift.ll
@@ -0,0 +1,33 @@
+%a_str = internal constant [8 x sbyte] c"a = %d\0A\00"
+%b_str = internal constant [8 x sbyte] c"b = %d\0A\00"
+
+;; shl
+%a_shl_str = internal constant [14 x sbyte] c"a << %d = %d\0A\00"
+
+declare int %printf(sbyte*, ...)
+%A = global int 2
+%B = global int 5
+
+int %main() {  
+entry:
+  %a = load int* %A
+  %b = load int* %B
+  %a_s = getelementptr [8 x sbyte]* %a_str, long 0, long 0
+  %b_s = getelementptr [8 x sbyte]* %b_str, long 0, long 0
+  %a_shl_s = getelementptr [14 x sbyte]* %a_shl_str, long 0, long 0
+  call int (sbyte*, ...)* %printf(sbyte* %a_s, int %a)
+  call int (sbyte*, ...)* %printf(sbyte* %b_s, int %b)
+  br label %shl_test
+
+shl_test:
+  ;; test left shifts 0-31
+  %s = phi ubyte [ 0, %entry ], [ %s_inc, %shl_test ]
+  %result = shl int %a, ubyte %s
+  call int (sbyte*, ...)* %printf(sbyte* %a_shl_s, ubyte %s, int %result)
+  %s_inc = add ubyte %s, 1 
+  %done = seteq ubyte %s, 32
+  br bool %done, label %fini, label %shl_test
+
+fini:
+  ret int 0
+}