[SystemZ] Fold more spills

[oota-llvm.git] / test / CodeGen / SystemZ / fp-conv-03.ll

diff --git a/test/CodeGen/SystemZ/fp-conv-03.ll b/test/CodeGen/SystemZ/fp-conv-03.ll
index 703a141e3e12882c792e20294ef531897c1650a0..963653c8abfd438f8c8e1e2eefe54aec007dd4f5 100644 (file)
--- a/test/CodeGen/SystemZ/fp-conv-03.ll
+++ b/test/CodeGen/SystemZ/fp-conv-03.ll
@@ -87,3 +87,84 @@ define void @f6(fp128 *%dst, float *%base, i64 %index) {
   store fp128 %res, fp128 *%dst
   ret void
 }
+
+; Test a case where we spill the source of at least one LXEBR.  We want
+; to use LXEB if possible.
+define void @f7(fp128 *%ptr1, float *%ptr2) {
+; CHECK: f7:
+; CHECK: lxeb {{%f[0-9]+}}, 16{{[04]}}(%r15)
+; CHECK: br %r14
+  %val0 = load volatile float *%ptr2
+  %val1 = load volatile float *%ptr2
+  %val2 = load volatile float *%ptr2
+  %val3 = load volatile float *%ptr2
+  %val4 = load volatile float *%ptr2
+  %val5 = load volatile float *%ptr2
+  %val6 = load volatile float *%ptr2
+  %val7 = load volatile float *%ptr2
+  %val8 = load volatile float *%ptr2
+  %val9 = load volatile float *%ptr2
+  %val10 = load volatile float *%ptr2
+  %val11 = load volatile float *%ptr2
+  %val12 = load volatile float *%ptr2
+  %val13 = load volatile float *%ptr2
+  %val14 = load volatile float *%ptr2
+  %val15 = load volatile float *%ptr2
+  %val16 = load volatile float *%ptr2
+
+  %ext0 = fpext float %val0 to fp128
+  %ext1 = fpext float %val1 to fp128
+  %ext2 = fpext float %val2 to fp128
+  %ext3 = fpext float %val3 to fp128
+  %ext4 = fpext float %val4 to fp128
+  %ext5 = fpext float %val5 to fp128
+  %ext6 = fpext float %val6 to fp128
+  %ext7 = fpext float %val7 to fp128
+  %ext8 = fpext float %val8 to fp128
+  %ext9 = fpext float %val9 to fp128
+  %ext10 = fpext float %val10 to fp128
+  %ext11 = fpext float %val11 to fp128
+  %ext12 = fpext float %val12 to fp128
+  %ext13 = fpext float %val13 to fp128
+  %ext14 = fpext float %val14 to fp128
+  %ext15 = fpext float %val15 to fp128
+  %ext16 = fpext float %val16 to fp128
+
+  store volatile float %val0, float *%ptr2
+  store volatile float %val1, float *%ptr2
+  store volatile float %val2, float *%ptr2
+  store volatile float %val3, float *%ptr2
+  store volatile float %val4, float *%ptr2
+  store volatile float %val5, float *%ptr2
+  store volatile float %val6, float *%ptr2
+  store volatile float %val7, float *%ptr2
+  store volatile float %val8, float *%ptr2
+  store volatile float %val9, float *%ptr2
+  store volatile float %val10, float *%ptr2
+  store volatile float %val11, float *%ptr2
+  store volatile float %val12, float *%ptr2
+  store volatile float %val13, float *%ptr2
+  store volatile float %val14, float *%ptr2
+  store volatile float %val15, float *%ptr2
+  store volatile float %val16, float *%ptr2
+
+  store volatile fp128 %ext0, fp128 *%ptr1
+  store volatile fp128 %ext1, fp128 *%ptr1
+  store volatile fp128 %ext2, fp128 *%ptr1
+  store volatile fp128 %ext3, fp128 *%ptr1
+  store volatile fp128 %ext4, fp128 *%ptr1
+  store volatile fp128 %ext5, fp128 *%ptr1
+  store volatile fp128 %ext6, fp128 *%ptr1
+  store volatile fp128 %ext7, fp128 *%ptr1
+  store volatile fp128 %ext8, fp128 *%ptr1
+  store volatile fp128 %ext9, fp128 *%ptr1
+  store volatile fp128 %ext10, fp128 *%ptr1
+  store volatile fp128 %ext11, fp128 *%ptr1
+  store volatile fp128 %ext12, fp128 *%ptr1
+  store volatile fp128 %ext13, fp128 *%ptr1
+  store volatile fp128 %ext14, fp128 *%ptr1
+  store volatile fp128 %ext15, fp128 *%ptr1
+  store volatile fp128 %ext16, fp128 *%ptr1
+
+  ret void
+}