diff options
Diffstat (limited to 'llvm/test/CodeGen/Hexagon/packetize-load-store-aliasing.mir')
| -rw-r--r-- | llvm/test/CodeGen/Hexagon/packetize-load-store-aliasing.mir | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/Hexagon/packetize-load-store-aliasing.mir b/llvm/test/CodeGen/Hexagon/packetize-load-store-aliasing.mir new file mode 100644 index 00000000000..03835d69ba8 --- /dev/null +++ b/llvm/test/CodeGen/Hexagon/packetize-load-store-aliasing.mir @@ -0,0 +1,41 @@ +# RUN: llc -march=hexagon -mcpu=hexagonv60 -run-pass hexagon-packetizer %s -o - | FileCheck %s + +# Check that a store can be packetized with a load that happens later +# if these instructions are not aliased (the load will actually execute +# first). +# CHECK-LABEL: name: danny +# CHECK: BUNDLE + +--- +name: danny +tracksRegLiveness: true +stack: + - { id: 0, type: default, size: 4, alignment: 4 } + - { id: 1, type: default, size: 4, alignment: 4 } +body: | + bb.0: + liveins: %r0 + S2_storeri_io %r29, 0, %r0 :: (store 4 into %stack.0) + %r1 = L2_loadri_io %r29, 4 :: (load 4 from %stack.1) +... + + +# Check that a store cannot be packetized with a load that happens later +# if these instructions are aliased. +# CHECK-LABEL: name: sammy +# CHECK-NOT: BUNDLE +# CHECK: S2_storeri_io %r29, 0, %r0 +# CHECK: %r1 = L2_loadri_io %r29, 0 + +--- +name: sammy +tracksRegLiveness: true +stack: + - { id: 0, type: default, size: 4, alignment: 4 } +body: | + bb.0: + liveins: %r0 + S2_storeri_io %r29, 0, %r0 :: (store 4 into %stack.0) + %r1 = L2_loadri_io %r29, 0 :: (load 4 from %stack.0) +... + |
