new lsr testcase

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

diff --git a/test/CodeGen/ARM/lsr-code-insertion.ll b/test/CodeGen/ARM/lsr-code-insertion.ll
new file mode 100644 (file)
index 0000000..baa8cdd
--- /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
+}