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-rw-r--r--test/CodeGen/X86/avoid-loop-align-2.ll45
1 files changed, 45 insertions, 0 deletions
diff --git a/test/CodeGen/X86/avoid-loop-align-2.ll b/test/CodeGen/X86/avoid-loop-align-2.ll
new file mode 100644
index 000000000000..9f0aeb32c417
--- /dev/null
+++ b/test/CodeGen/X86/avoid-loop-align-2.ll
@@ -0,0 +1,45 @@
+; RUN: llvm-as < %s | llc -march=x86 | grep align | count 3
+
+@x = external global i32* ; <i32**> [#uses=1]
+
+define i32 @t(i32 %a, i32 %b) nounwind readonly ssp {
+entry:
+ %0 = icmp eq i32 %a, 0 ; <i1> [#uses=1]
+ br i1 %0, label %bb5, label %bb.nph12
+
+bb.nph12: ; preds = %entry
+ %1 = icmp eq i32 %b, 0 ; <i1> [#uses=1]
+ %2 = load i32** @x, align 8 ; <i32*> [#uses=1]
+ br i1 %1, label %bb2.preheader, label %bb2.preheader.us
+
+bb2.preheader.us: ; preds = %bb2.bb3_crit_edge.us, %bb.nph12
+ %indvar18 = phi i32 [ 0, %bb.nph12 ], [ %indvar.next19, %bb2.bb3_crit_edge.us ] ; <i32> [#uses=2]
+ %sum.111.us = phi i32 [ 0, %bb.nph12 ], [ %4, %bb2.bb3_crit_edge.us ] ; <i32> [#uses=0]
+ %tmp16 = mul i32 %indvar18, %a ; <i32> [#uses=1]
+ br label %bb1.us
+
+bb1.us: ; preds = %bb1.us, %bb2.preheader.us
+ %indvar = phi i32 [ 0, %bb2.preheader.us ], [ %indvar.next, %bb1.us ] ; <i32> [#uses=2]
+ %tmp17 = add i32 %indvar, %tmp16 ; <i32> [#uses=1]
+ %tmp. = zext i32 %tmp17 to i64 ; <i64> [#uses=1]
+ %3 = getelementptr i32* %2, i64 %tmp. ; <i32*> [#uses=1]
+ %4 = load i32* %3, align 4 ; <i32> [#uses=2]
+ %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2]
+ %exitcond = icmp eq i32 %indvar.next, %b ; <i1> [#uses=1]
+ br i1 %exitcond, label %bb2.bb3_crit_edge.us, label %bb1.us
+
+bb2.bb3_crit_edge.us: ; preds = %bb1.us
+ %indvar.next19 = add i32 %indvar18, 1 ; <i32> [#uses=2]
+ %exitcond22 = icmp eq i32 %indvar.next19, %a ; <i1> [#uses=1]
+ br i1 %exitcond22, label %bb5, label %bb2.preheader.us
+
+bb2.preheader: ; preds = %bb2.preheader, %bb.nph12
+ %indvar24 = phi i32 [ %indvar.next25, %bb2.preheader ], [ 0, %bb.nph12 ] ; <i32> [#uses=1]
+ %indvar.next25 = add i32 %indvar24, 1 ; <i32> [#uses=2]
+ %exitcond28 = icmp eq i32 %indvar.next25, %a ; <i1> [#uses=1]
+ br i1 %exitcond28, label %bb5, label %bb2.preheader
+
+bb5: ; preds = %bb2.preheader, %bb2.bb3_crit_edge.us, %entry
+ %sum.1.lcssa = phi i32 [ 0, %entry ], [ 0, %bb2.preheader ], [ %4, %bb2.bb3_crit_edge.us ] ; <i32> [#uses=1]
+ ret i32 %sum.1.lcssa
+}