Add PR1501 test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47874 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/coalescer-commute4.ll b/test/CodeGen/X86/coalescer-commute4.ll
new file mode 100644 (file)
index 0000000..219c11c
--- /dev/null
+++ b/test/CodeGen/X86/coalescer-commute4.ll
@@ -0,0 +1,30 @@
+d; RUN: llvm-as < %s | llc -mtriple=i686-apple-darwin -mattr=+sse2 | not grep movaps
+; PR1501
+
+efine float @foo(i32* %x, float* %y, i32 %c) nounwind  {
+entry:
+       %tmp2132 = icmp eq i32 %c, 0            ; <i1> [#uses=2]
+       br i1 %tmp2132, label %bb23, label %bb.preheader
+
+bb.preheader:          ; preds = %entry
+       %umax = select i1 %tmp2132, i32 1, i32 %c               ; <i32> [#uses=1]
+       br label %bb
+
+bb:            ; preds = %bb, %bb.preheader
+       %i.0.reg2mem.0 = phi i32 [ 0, %bb.preheader ], [ %indvar.next, %bb ]            ; <i32> [#uses=3]
+       %res.0.reg2mem.0 = phi float [ 0.000000e+00, %bb.preheader ], [ %tmp14, %bb ]           ; <float> [#uses=1]
+       %tmp3 = getelementptr i32* %x, i32 %i.0.reg2mem.0               ; <i32*> [#uses=1]
+       %tmp4 = load i32* %tmp3, align 4                ; <i32> [#uses=1]
+       %tmp45 = sitofp i32 %tmp4 to float              ; <float> [#uses=1]
+       %tmp8 = getelementptr float* %y, i32 %i.0.reg2mem.0             ; <float*> [#uses=1]
+       %tmp9 = load float* %tmp8, align 4              ; <float> [#uses=1]
+       %tmp11 = mul float %tmp9, %tmp45                ; <float> [#uses=1]
+       %tmp14 = add float %tmp11, %res.0.reg2mem.0             ; <float> [#uses=2]
+       %indvar.next = add i32 %i.0.reg2mem.0, 1                ; <i32> [#uses=2]
+       %exitcond = icmp eq i32 %indvar.next, %umax             ; <i1> [#uses=1]
+       br i1 %exitcond, label %bb23, label %bb
+
+bb23:          ; preds = %bb, %entry
+       %res.0.reg2mem.1 = phi float [ 0.000000e+00, %entry ], [ %tmp14, %bb ]          ; <float> [#uses=1]
+       ret float %res.0.reg2mem.1
+}