[SystemZ] Fold more spills

[oota-llvm.git] / test / CodeGen / SystemZ / fp-sqrt-01.ll

diff --git a/test/CodeGen/SystemZ/fp-sqrt-01.ll b/test/CodeGen/SystemZ/fp-sqrt-01.ll
index 7ed27f56d0d053ef7704bfbbefc79f552c5248c2..faba390ea59725ff87c843a78cc2c7985e8d701c 100644 (file)
--- a/test/CodeGen/SystemZ/fp-sqrt-01.ll
+++ b/test/CodeGen/SystemZ/fp-sqrt-01.ll
@@ -71,3 +71,84 @@ define float @f6(float *%base, i64 %index) {
   %res = call float @llvm.sqrt.f32(float %val)
   ret float %res
 }
+
+; Test a case where we spill the source of at least one SQEBR.  We want
+; to use SQEB if possible.
+define void @f7(float *%ptr) {
+; CHECK: f7:
+; CHECK: sqeb {{%f[0-9]+}}, 16{{[04]}}(%r15)
+; CHECK: br %r14
+  %val0 = load volatile float *%ptr
+  %val1 = load volatile float *%ptr
+  %val2 = load volatile float *%ptr
+  %val3 = load volatile float *%ptr
+  %val4 = load volatile float *%ptr
+  %val5 = load volatile float *%ptr
+  %val6 = load volatile float *%ptr
+  %val7 = load volatile float *%ptr
+  %val8 = load volatile float *%ptr
+  %val9 = load volatile float *%ptr
+  %val10 = load volatile float *%ptr
+  %val11 = load volatile float *%ptr
+  %val12 = load volatile float *%ptr
+  %val13 = load volatile float *%ptr
+  %val14 = load volatile float *%ptr
+  %val15 = load volatile float *%ptr
+  %val16 = load volatile float *%ptr
+
+  %sqrt0 = call float @llvm.sqrt.f32(float %val0)
+  %sqrt1 = call float @llvm.sqrt.f32(float %val1)
+  %sqrt2 = call float @llvm.sqrt.f32(float %val2)
+  %sqrt3 = call float @llvm.sqrt.f32(float %val3)
+  %sqrt4 = call float @llvm.sqrt.f32(float %val4)
+  %sqrt5 = call float @llvm.sqrt.f32(float %val5)
+  %sqrt6 = call float @llvm.sqrt.f32(float %val6)
+  %sqrt7 = call float @llvm.sqrt.f32(float %val7)
+  %sqrt8 = call float @llvm.sqrt.f32(float %val8)
+  %sqrt9 = call float @llvm.sqrt.f32(float %val9)
+  %sqrt10 = call float @llvm.sqrt.f32(float %val10)
+  %sqrt11 = call float @llvm.sqrt.f32(float %val11)
+  %sqrt12 = call float @llvm.sqrt.f32(float %val12)
+  %sqrt13 = call float @llvm.sqrt.f32(float %val13)
+  %sqrt14 = call float @llvm.sqrt.f32(float %val14)
+  %sqrt15 = call float @llvm.sqrt.f32(float %val15)
+  %sqrt16 = call float @llvm.sqrt.f32(float %val16)
+
+  store volatile float %val0, float *%ptr
+  store volatile float %val1, float *%ptr
+  store volatile float %val2, float *%ptr
+  store volatile float %val3, float *%ptr
+  store volatile float %val4, float *%ptr
+  store volatile float %val5, float *%ptr
+  store volatile float %val6, float *%ptr
+  store volatile float %val7, float *%ptr
+  store volatile float %val8, float *%ptr
+  store volatile float %val9, float *%ptr
+  store volatile float %val10, float *%ptr
+  store volatile float %val11, float *%ptr
+  store volatile float %val12, float *%ptr
+  store volatile float %val13, float *%ptr
+  store volatile float %val14, float *%ptr
+  store volatile float %val15, float *%ptr
+  store volatile float %val16, float *%ptr
+
+  store volatile float %sqrt0, float *%ptr
+  store volatile float %sqrt1, float *%ptr
+  store volatile float %sqrt2, float *%ptr
+  store volatile float %sqrt3, float *%ptr
+  store volatile float %sqrt4, float *%ptr
+  store volatile float %sqrt5, float *%ptr
+  store volatile float %sqrt6, float *%ptr
+  store volatile float %sqrt7, float *%ptr
+  store volatile float %sqrt8, float *%ptr
+  store volatile float %sqrt9, float *%ptr
+  store volatile float %sqrt10, float *%ptr
+  store volatile float %sqrt11, float *%ptr
+  store volatile float %sqrt12, float *%ptr
+  store volatile float %sqrt13, float *%ptr
+  store volatile float %sqrt14, float *%ptr
+  store volatile float %sqrt15, float *%ptr
+  store volatile float %sqrt16, float *%ptr
+
+  ret void
+}