vendor/llvm/llvm-release_350-r216957

1 files changed, 42 insertions, 0 deletions

diff --git a/test/CodeGen/ARM/bswap16.ll b/test/CodeGen/ARM/bswap16.ll
new file mode 100644
index 0000000000000..70c62d294eecf
--- /dev/null
+++ b/test/CodeGen/ARM/bswap16.ll
@@ -0,0 +1,42 @@
+; RUN: llc -mtriple=arm-darwin  -mattr=v6 < %s | FileCheck %s
+; RUN: llc -mtriple=thumb-darwin  -mattr=v6 < %s | FileCheck %s
+
+
+define void @test1(i16* nocapture %data) {
+entry:
+  %0 = load i16* %data, align 2
+  %1 = tail call i16 @llvm.bswap.i16(i16 %0)
+  store i16 %1, i16* %data, align 2
+  ret void
+
+  ; CHECK-LABEL: test1:
+  ; CHECK: ldrh r[[R1:[0-9]+]], [r0]
+  ; CHECK: rev16 r[[R1]], r[[R1]]
+  ; CHECK: strh r[[R1]], [r0]
+}
+
+
+define void @test2(i16* nocapture %data, i16 zeroext %in) {
+entry:
+  %0 = tail call i16 @llvm.bswap.i16(i16 %in)
+  store i16 %0, i16* %data, align 2
+  ret void
+
+  ; CHECK-LABEL: test2:
+  ; CHECK: rev16 r[[R1:[0-9]+]], r1
+  ; CHECK: strh r[[R1]], [r0]
+}
+
+
+define i16 @test3(i16* nocapture %data) {
+entry:
+  %0 = load i16* %data, align 2
+  %1 = tail call i16 @llvm.bswap.i16(i16 %0)
+  ret i16 %1
+
+  ; CHECK-LABEL: test3:
+  ; CHECK: ldrh r[[R0:[0-9]+]], [r0]
+  ; CHECK: rev16 r[[R0]], r0
+}
+
+declare i16 @llvm.bswap.i16(i16)