[Hexagon] Improve handling of unaligned vector loads and stores

llvm-svn: 264584

1 files changed, 31 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/Hexagon/select-instr-align.ll b/llvm/test/CodeGen/Hexagon/select-instr-align.ll
new file mode 100644
index 00000000000..e3b2929d52f
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/select-instr-align.ll
@@ -0,0 +1,31 @@
+; RUN: llc -march=hexagon -enable-hexagon-hvx < %s | FileCheck %s
+; CHECK-LABEL: aligned_load:
+; CHECK: = vmem({{.*}})
+; CHECK-LABEL: aligned_store:
+; CHECK: vmem({{.*}}) =
+; CHECK-LABEL: unaligned_load:
+; CHECK: = vmemu({{.*}})
+; CHECK-LABEL: unaligned_store:
+; CHECK: vmemu({{.*}}) =
+
+define <16 x i32> @aligned_load(<16 x i32>* %p, <16 x i32> %a) {
+  %v = load <16 x i32>, <16 x i32>* %p, align 64
+  ret <16 x i32> %v
+}
+
+define void @aligned_store(<16 x i32>* %p, <16 x i32> %a) {
+  store <16 x i32> %a, <16 x i32>* %p, align 64
+  ret void
+}
+
+define <16 x i32> @unaligned_load(<16 x i32>* %p, <16 x i32> %a) {
+  %v = load <16 x i32>, <16 x i32>* %p, align 32
+  ret <16 x i32> %v
+}
+
+define void @unaligned_store(<16 x i32>* %p, <16 x i32> %a) {
+  store <16 x i32> %a, <16 x i32>* %p, align 32
+  ret void
+}
+
+