Add PR1501 test case.

llvm-svn: 47874

1 files changed, 30 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/X86/coalescer-commute4.ll b/llvm/test/CodeGen/X86/coalescer-commute4.ll
new file mode 100644
index 00000000000..219c11c45e1
--- /dev/null
+++ b/llvm/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
+}