1 files changed, 86 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/callee-save.ll b/test/CodeGen/AArch64/callee-save.ll
new file mode 100644
index 0000000000..953dbc433f
--- /dev/null
+++ b/test/CodeGen/AArch64/callee-save.ll
@@ -0,0 +1,86 @@
+; RUN: llc -verify-machineinstrs < %s -march=aarch64 | FileCheck %s
+
+@var = global float 0.0
+
+define void @foo() {
+; CHECK: foo:
+
+; CHECK stp d14, d15, [sp
+; CHECK stp d12, d13, [sp
+; CHECK stp d10, d11, [sp
+; CHECK stp d8, d9, [sp
+
+  ; Create lots of live variables to exhaust the supply of
+  ; caller-saved registers
+  %val1 = load volatile float* @var
+  %val2 = load volatile float* @var
+  %val3 = load volatile float* @var
+  %val4 = load volatile float* @var
+  %val5 = load volatile float* @var
+  %val6 = load volatile float* @var
+  %val7 = load volatile float* @var
+  %val8 = load volatile float* @var
+  %val9 = load volatile float* @var
+  %val10 = load volatile float* @var
+  %val11 = load volatile float* @var
+  %val12 = load volatile float* @var
+  %val13 = load volatile float* @var
+  %val14 = load volatile float* @var
+  %val15 = load volatile float* @var
+  %val16 = load volatile float* @var
+  %val17 = load volatile float* @var
+  %val18 = load volatile float* @var
+  %val19 = load volatile float* @var
+  %val20 = load volatile float* @var
+  %val21 = load volatile float* @var
+  %val22 = load volatile float* @var
+  %val23 = load volatile float* @var
+  %val24 = load volatile float* @var
+  %val25 = load volatile float* @var
+  %val26 = load volatile float* @var
+  %val27 = load volatile float* @var
+  %val28 = load volatile float* @var
+  %val29 = load volatile float* @var
+  %val30 = load volatile float* @var
+  %val31 = load volatile float* @var
+  %val32 = load volatile float* @var
+
+  store volatile float %val1, float* @var
+  store volatile float %val2, float* @var
+  store volatile float %val3, float* @var
+  store volatile float %val4, float* @var
+  store volatile float %val5, float* @var
+  store volatile float %val6, float* @var
+  store volatile float %val7, float* @var
+  store volatile float %val8, float* @var
+  store volatile float %val9, float* @var
+  store volatile float %val10, float* @var
+  store volatile float %val11, float* @var
+  store volatile float %val12, float* @var
+  store volatile float %val13, float* @var
+  store volatile float %val14, float* @var
+  store volatile float %val15, float* @var
+  store volatile float %val16, float* @var
+  store volatile float %val17, float* @var
+  store volatile float %val18, float* @var
+  store volatile float %val19, float* @var
+  store volatile float %val20, float* @var
+  store volatile float %val21, float* @var
+  store volatile float %val22, float* @var
+  store volatile float %val23, float* @var
+  store volatile float %val24, float* @var
+  store volatile float %val25, float* @var
+  store volatile float %val26, float* @var
+  store volatile float %val27, float* @var
+  store volatile float %val28, float* @var
+  store volatile float %val29, float* @var
+  store volatile float %val30, float* @var
+  store volatile float %val31, float* @var
+  store volatile float %val32, float* @var
+
+; CHECK: ldp     d8, d9, [sp
+; CHECK: ldp     d10, d11, [sp
+; CHECK: ldp     d12, d13, [sp
+; CHECK: ldp     d14, d15, [sp
+  ret void
+}