Bunch of tests to check loop passes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40629 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 72 insertions, 0 deletions

diff --git a/test/Transforms/LoopUnswitch/2007-07-12-ExitDomInfo.ll b/test/Transforms/LoopUnswitch/2007-07-12-ExitDomInfo.ll
new file mode 100644
index 0000000000..c4080c1e3b
--- /dev/null
+++ b/test/Transforms/LoopUnswitch/2007-07-12-ExitDomInfo.ll
@@ -0,0 +1,45 @@
+; RUN: llvm-as < %s | opt -loop-unswitch -instcombine -disable-output
+
+@str3 = external constant [3 x i8]		; <[3 x i8]*> [#uses=1]
+
+define i32 @stringSearch_Clib(i32 %count) {
+entry:
+	%ttmp25 = icmp sgt i32 %count, 0		; <i1> [#uses=1]
+	br i1 %ttmp25, label %bb36.preheader, label %bb44
+
+bb36.preheader:		; preds = %entry
+	%ttmp33 = icmp slt i32 0, 250		; <i1> [#uses=1]
+	br label %bb36.outer
+
+bb36.outer:		; preds = %bb41, %bb36.preheader
+	br i1 %ttmp33, label %bb.nph, label %bb41
+
+bb.nph:		; preds = %bb36.outer
+	%ttmp8 = icmp eq i8* null, null		; <i1> [#uses=1]
+	%ttmp6 = icmp eq i8* null, null		; <i1> [#uses=1]
+	%tmp31 = call i32 @strcspn( i8* null, i8* getelementptr ([3 x i8]* @str3, i64 0, i64 0) )		; <i32> [#uses=1]
+	br i1 %ttmp8, label %cond_next, label %cond_true
+
+cond_true:		; preds = %bb.nph
+	ret i32 0
+
+cond_next:		; preds = %bb.nph
+	br i1 %ttmp6, label %cond_next28, label %cond_true20
+
+cond_true20:		; preds = %cond_next
+	ret i32 0
+
+cond_next28:		; preds = %cond_next
+	%tmp33 = add i32 %tmp31, 0		; <i32> [#uses=1]
+	br label %bb41
+
+bb41:		; preds = %cond_next28, %bb36.outer
+	%c.2.lcssa = phi i32 [ 0, %bb36.outer ], [ %tmp33, %cond_next28 ]		; <i32> [#uses=1]
+	br i1 false, label %bb36.outer, label %bb44
+
+bb44:		; preds = %bb41, %entry
+	%c.01.1 = phi i32 [ 0, %entry ], [ %c.2.lcssa, %bb41 ]		; <i32> [#uses=1]
+	ret i32 %c.01.1
+}
+
+declare i32 @strcspn(i8*, i8*)
diff --git a/test/Transforms/LoopUnswitch/2007-07-13-DomInfo.ll b/test/Transforms/LoopUnswitch/2007-07-13-DomInfo.ll
new file mode 100644
index 0000000000..de3f670f2b
--- /dev/null
+++ b/test/Transforms/LoopUnswitch/2007-07-13-DomInfo.ll
@@ -0,0 +1,27 @@
+; RUN: llvm-as < %s | opt -loop-unswitch -disable-output
+
+define i32 @main(i32 %argc, i8** %argv) {
+entry:
+	%tmp1785365 = icmp ult i32 0, 100		; <i1> [#uses=1]
+	br label %bb
+
+bb:		; preds = %cond_true, %entry
+	br i1 false, label %cond_true, label %cond_next
+
+cond_true:		; preds = %bb
+	br i1 %tmp1785365, label %bb, label %bb1788
+
+cond_next:		; preds = %bb
+	%iftmp.1.0 = select i1 false, i32 0, i32 0		; <i32> [#uses=1]
+	br i1 false, label %cond_true47, label %cond_next74
+
+cond_true47:		; preds = %cond_next
+	%tmp53 = urem i32 %iftmp.1.0, 0		; <i32> [#uses=0]
+	ret i32 0
+
+cond_next74:		; preds = %cond_next
+	ret i32 0
+
+bb1788:		; preds = %cond_true
+	ret i32 0
+}