1 files changed, 102 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/vdiv_combine.ll b/test/CodeGen/ARM/vdiv_combine.ll
new file mode 100644
index 0000000..1387393
--- /dev/null
+++ b/test/CodeGen/ARM/vdiv_combine.ll
@@ -0,0 +1,102 @@
+; RUN: llc < %s -mtriple=armv7-apple-ios | FileCheck %s
+
+@in = global float 0x400921FA00000000, align 4
+@iin = global i32 -1023, align 4
+@uin = global i32 1023, align 4
+
+declare void @foo_int32x4_t(<4 x i32>)
+
+; Test signed conversion.
+; CHECK: t1
+; CHECK-NOT: vdiv
+define void @t1() nounwind {
+entry:
+  %tmp = load i32* @iin, align 4, !tbaa !3
+  %vecinit.i = insertelement <2 x i32> undef, i32 %tmp, i32 0
+  %vecinit2.i = insertelement <2 x i32> %vecinit.i, i32 %tmp, i32 1
+  %vcvt.i = sitofp <2 x i32> %vecinit2.i to <2 x float>
+  %div.i = fdiv <2 x float> %vcvt.i, <float 8.000000e+00, float 8.000000e+00>
+  tail call void @foo_float32x2_t(<2 x float> %div.i) nounwind
+  ret void
+}
+
+declare void @foo_float32x2_t(<2 x float>)
+
+; Test unsigned conversion.
+; CHECK: t2
+; CHECK-NOT: vdiv
+define void @t2() nounwind {
+entry:
+  %tmp = load i32* @uin, align 4, !tbaa !3
+  %vecinit.i = insertelement <2 x i32> undef, i32 %tmp, i32 0
+  %vecinit2.i = insertelement <2 x i32> %vecinit.i, i32 %tmp, i32 1
+  %vcvt.i = uitofp <2 x i32> %vecinit2.i to <2 x float>
+  %div.i = fdiv <2 x float> %vcvt.i, <float 8.000000e+00, float 8.000000e+00>
+  tail call void @foo_float32x2_t(<2 x float> %div.i) nounwind
+  ret void
+}
+
+; Test which should not fold due to non-power of 2.
+; CHECK: t3
+; CHECK: vdiv
+define void @t3() nounwind {
+entry:
+  %tmp = load i32* @iin, align 4, !tbaa !3
+  %vecinit.i = insertelement <2 x i32> undef, i32 %tmp, i32 0
+  %vecinit2.i = insertelement <2 x i32> %vecinit.i, i32 %tmp, i32 1
+  %vcvt.i = sitofp <2 x i32> %vecinit2.i to <2 x float>
+  %div.i = fdiv <2 x float> %vcvt.i, <float 0x401B333340000000, float 0x401B333340000000>
+  tail call void @foo_float32x2_t(<2 x float> %div.i) nounwind
+  ret void
+}
+
+; Test which should not fold due to power of 2 out of range.
+; CHECK: t4
+; CHECK: vdiv
+define void @t4() nounwind {
+entry:
+  %tmp = load i32* @iin, align 4, !tbaa !3
+  %vecinit.i = insertelement <2 x i32> undef, i32 %tmp, i32 0
+  %vecinit2.i = insertelement <2 x i32> %vecinit.i, i32 %tmp, i32 1
+  %vcvt.i = sitofp <2 x i32> %vecinit2.i to <2 x float>
+  %div.i = fdiv <2 x float> %vcvt.i, <float 0x4200000000000000, float 0x4200000000000000>
+  tail call void @foo_float32x2_t(<2 x float> %div.i) nounwind
+  ret void
+}
+
+; Test case where const is max power of 2 (i.e., 2^32).
+; CHECK: t5
+; CHECK-NOT: vdiv
+define void @t5() nounwind {
+entry:
+  %tmp = load i32* @iin, align 4, !tbaa !3
+  %vecinit.i = insertelement <2 x i32> undef, i32 %tmp, i32 0
+  %vecinit2.i = insertelement <2 x i32> %vecinit.i, i32 %tmp, i32 1
+  %vcvt.i = sitofp <2 x i32> %vecinit2.i to <2 x float>
+  %div.i = fdiv <2 x float> %vcvt.i, <float 0x41F0000000000000, float 0x41F0000000000000>
+  tail call void @foo_float32x2_t(<2 x float> %div.i) nounwind
+  ret void
+}
+
+; Test quadword.
+; CHECK: t6
+; CHECK-NOT: vdiv
+define void @t6() nounwind {
+entry:
+  %tmp = load i32* @iin, align 4, !tbaa !3
+  %vecinit.i = insertelement <4 x i32> undef, i32 %tmp, i32 0
+  %vecinit2.i = insertelement <4 x i32> %vecinit.i, i32 %tmp, i32 1
+  %vecinit4.i = insertelement <4 x i32> %vecinit2.i, i32 %tmp, i32 2
+  %vecinit6.i = insertelement <4 x i32> %vecinit4.i, i32 %tmp, i32 3
+  %vcvt.i = sitofp <4 x i32> %vecinit6.i to <4 x float>
+  %div.i = fdiv <4 x float> %vcvt.i, <float 8.000000e+00, float 8.000000e+00, float 8.000000e+00, float 8.000000e+00>
+  tail call void @foo_float32x4_t(<4 x float> %div.i) nounwind
+  ret void
+}
+
+declare void @foo_float32x4_t(<4 x float>)
+
+!0 = metadata !{metadata !"float", metadata !1}
+!1 = metadata !{metadata !"omnipotent char", metadata !2}
+!2 = metadata !{metadata !"Simple C/C++ TBAA", null}
+!3 = metadata !{metadata !"int", metadata !1}