new lsr testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35971 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 60 insertions, 0 deletions

diff --git a/test/CodeGen/ARM/lsr-code-insertion.ll b/test/CodeGen/ARM/lsr-code-insertion.ll
new file mode 100644
index 00000000000..baa8cdddc61
--- /dev/null
+++ b/test/CodeGen/ARM/lsr-code-insertion.ll
@@ -0,0 +1,60 @@
+; RUN: llvm-as < %s | llc -stats 2>&1 | grep '40.*Number of machine instrs printed'
+; This test really wants to check that the resultant "cond_true" block only has a single
+; store in it, and that cond_true55 only has code to materialize the constant and do
+; a store.  We do *not* want something like this:
+;
+;LBB1_3: @cond_true
+;        add r8, r0, r6
+;        str r10, [r8, #+4]
+;
+
+target triple = "arm-apple-darwin8"
+
+define void @foo(i32* %mc, i32* %mpp, i32* %ip, i32* %dpp, i32* %tpmm, i32 %M, i32* %tpim, i32* %tpdm, i32* %bp, i32* %ms, i32 %xmb) {
+entry:
+	%tmp6584 = icmp slt i32 %M, 1		; <i1> [#uses=1]
+	br i1 %tmp6584, label %return, label %bb
+
+bb:		; preds = %cond_next59, %entry
+	%indvar = phi i32 [ 0, %entry ], [ %k.069.0, %cond_next59 ]		; <i32> [#uses=6]
+	%k.069.0 = add i32 %indvar, 1		; <i32> [#uses=3]
+	%tmp3 = getelementptr i32* %mpp, i32 %indvar		; <i32*> [#uses=1]
+	%tmp4 = load i32* %tmp3		; <i32> [#uses=1]
+	%tmp8 = getelementptr i32* %tpmm, i32 %indvar		; <i32*> [#uses=1]
+	%tmp9 = load i32* %tmp8		; <i32> [#uses=1]
+	%tmp10 = add i32 %tmp9, %tmp4		; <i32> [#uses=2]
+	%tmp13 = getelementptr i32* %mc, i32 %k.069.0		; <i32*> [#uses=5]
+	store i32 %tmp10, i32* %tmp13
+	%tmp17 = getelementptr i32* %ip, i32 %indvar		; <i32*> [#uses=1]
+	%tmp18 = load i32* %tmp17		; <i32> [#uses=1]
+	%tmp22 = getelementptr i32* %tpim, i32 %indvar		; <i32*> [#uses=1]
+	%tmp23 = load i32* %tmp22		; <i32> [#uses=1]
+	%tmp24 = add i32 %tmp23, %tmp18		; <i32> [#uses=2]
+	%tmp30 = icmp sgt i32 %tmp24, %tmp10		; <i1> [#uses=1]
+	br i1 %tmp30, label %cond_true, label %cond_next
+
+cond_true:		; preds = %bb
+	store i32 %tmp24, i32* %tmp13
+	br label %cond_next
+
+cond_next:		; preds = %cond_true, %bb
+	%tmp39 = load i32* %tmp13		; <i32> [#uses=1]
+	%tmp42 = getelementptr i32* %ms, i32 %k.069.0		; <i32*> [#uses=1]
+	%tmp43 = load i32* %tmp42		; <i32> [#uses=1]
+	%tmp44 = add i32 %tmp43, %tmp39		; <i32> [#uses=2]
+	store i32 %tmp44, i32* %tmp13
+	%tmp52 = icmp slt i32 %tmp44, -987654321		; <i1> [#uses=1]
+	br i1 %tmp52, label %cond_true55, label %cond_next59
+
+cond_true55:		; preds = %cond_next
+	store i32 -987654321, i32* %tmp13
+	br label %cond_next59
+
+cond_next59:		; preds = %cond_true55, %cond_next
+	%tmp61 = add i32 %indvar, 2		; <i32> [#uses=1]
+	%tmp65 = icmp sgt i32 %tmp61, %M		; <i1> [#uses=1]
+	br i1 %tmp65, label %return, label %bb
+
+return:		; preds = %cond_next59, %entry
+	ret void
+}