Once we're down to "setcc type constant1, constant2", at least come up

with the right answer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30550 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 54 insertions, 0 deletions

diff --git a/test/Transforms/PredicateSimplifier/2006-09-20-SetCC.ll b/test/Transforms/PredicateSimplifier/2006-09-20-SetCC.ll
new file mode 100644
index 0000000000..b2462f992d
--- /dev/null
+++ b/test/Transforms/PredicateSimplifier/2006-09-20-SetCC.ll
@@ -0,0 +1,54 @@
+; RUN: llvm-as < %s | opt -predsimplify | llvm-dis | grep br | grep bb8 | grep cond_true$ | grep false
+
+%str = external global [4 x sbyte]		; <[4 x sbyte]*> [#uses=1]
+
+implementation   ; Functions:
+
+declare int %sprintf(sbyte*, sbyte*, ...)
+
+int %main() {
+entry:
+	br label %cond_true.outer
+
+cond_true.outer:		; preds = %cond_true.i, %entry
+	%i.0.0.ph = phi int [ 0, %entry ], [ %tmp5, %cond_true.i ]		; <int> [#uses=1]
+	%j.0.0.ph = phi int [ 0, %entry ], [ %tmp312, %cond_true.i ]		; <int> [#uses=2]
+	br label %cond_true
+
+cond_true:		; preds = %return.i, %cond_true.outer
+	%indvar = phi uint [ 0, %cond_true.outer ], [ %indvar.next, %return.i ]		; <uint> [#uses=2]
+	%indvar = cast uint %indvar to int		; <int> [#uses=1]
+	%i.0.0 = add int %indvar, %i.0.0.ph		; <int> [#uses=3]
+	%savedstack = call sbyte* %llvm.stacksave( )		; <sbyte*> [#uses=2]
+	%tmp.i = seteq int %i.0.0, 0		; <bool> [#uses=1]
+	%tmp5 = add int %i.0.0, 1		; <int> [#uses=3]
+	br bool %tmp.i, label %return.i, label %cond_true.i
+
+cond_true.i:		; preds = %cond_true
+	%tmp.i = alloca [1000 x sbyte]		; <[1000 x sbyte]*> [#uses=1]
+	%tmp.sub.i = getelementptr [1000 x sbyte]* %tmp.i, int 0, int 0		; <sbyte*> [#uses=2]
+	%tmp4.i = call int (sbyte*, sbyte*, ...)* %sprintf( sbyte* %tmp.sub.i, sbyte* getelementptr ([4 x sbyte]* %str, int 0, uint 0), int %i.0.0 )		; <int> [#uses=0]
+	%tmp.i = load sbyte* %tmp.sub.i		; <sbyte> [#uses=1]
+	%tmp7.i = cast sbyte %tmp.i to int		; <int> [#uses=1]
+	call void %llvm.stackrestore( sbyte* %savedstack )
+	%tmp312 = add int %tmp7.i, %j.0.0.ph		; <int> [#uses=2]
+	%tmp19 = setgt int %tmp5, 9999		; <bool> [#uses=1]
+	br bool %tmp19, label %bb8, label %cond_true.outer
+
+return.i:		; preds = %cond_true
+	call void %llvm.stackrestore( sbyte* %savedstack )
+	%tmp21 = setgt int %tmp5, 9999		; <bool> [#uses=1]
+	%indvar.next = add uint %indvar, 1		; <uint> [#uses=1]
+	br bool %tmp21, label %bb8, label %cond_true
+
+bb8:		; preds = %return.i, %cond_true.i
+	%j.0.1 = phi int [ %j.0.0.ph, %return.i ], [ %tmp312, %cond_true.i ]		; <int> [#uses=1]
+	%tmp10 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([4 x sbyte]* %str, int 0, uint 0), int %j.0.1 )		; <int> [#uses=0]
+	ret int undef
+}
+
+declare int %printf(sbyte*, ...)
+
+declare sbyte* %llvm.stacksave()
+
+declare void %llvm.stackrestore(sbyte*)