diff options
Diffstat (limited to 'test/CodeGen/ARM/reg_asc_order.ll')
| -rw-r--r-- | test/CodeGen/ARM/reg_asc_order.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/reg_asc_order.ll b/test/CodeGen/ARM/reg_asc_order.ll new file mode 100644 index 00000000000..d1d0ee5f3e7 --- /dev/null +++ b/test/CodeGen/ARM/reg_asc_order.ll @@ -0,0 +1,16 @@ +; RUN: llc < %s -march=arm -mcpu=cortex-a8 | FileCheck %s +; Check that memcpy gets lowered to ldm/stm, at least in this very smple case. + +%struct.Foo = type { i32, i32, i32, i32 } + +define void @_Z10CopyStructP3FooS0_(%struct.Foo* nocapture %a, %struct.Foo* nocapture %b) nounwind { +entry: +;CHECK: ldm +;CHECK: stm + %0 = bitcast %struct.Foo* %a to i8* + %1 = bitcast %struct.Foo* %b to i8* + tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %0, i8* %1, i32 16, i32 4, i1 false) + ret void +} + +declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind |