1 files changed, 36 insertions, 0 deletions
diff --git a/test/CodeGen/X86/movbe.ll b/test/CodeGen/X86/movbe.ll
new file mode 100644
index 0000000000..0ed84693d5
--- /dev/null
+++ b/test/CodeGen/X86/movbe.ll
@@ -0,0 +1,36 @@
+; RUN: llc -march=x86-64 -mcpu=atom < %s | FileCheck %s
+
+declare i32 @llvm.bswap.i32(i32) nounwind readnone
+declare i64 @llvm.bswap.i64(i64) nounwind readnone
+
+define void @test1(i32* nocapture %x, i32 %y) nounwind {
+  %bswap = call i32 @llvm.bswap.i32(i32 %y)
+  store i32 %bswap, i32* %x, align 4
+  ret void
+; CHECK: test1:
+; CHECK: movbel	%esi, (%rdi)
+}
+
+define i32 @test2(i32* %x) nounwind {
+  %load = load i32* %x, align 4
+  %bswap = call i32 @llvm.bswap.i32(i32 %load)
+  ret i32 %bswap
+; CHECK: test2:
+; CHECK: movbel	(%rdi), %eax
+}
+
+define void @test3(i64* %x, i64 %y) nounwind {
+  %bswap = call i64 @llvm.bswap.i64(i64 %y)
+  store i64 %bswap, i64* %x, align 8
+  ret void
+; CHECK: test3:
+; CHECK: movbeq	%rsi, (%rdi)
+}
+
+define i64 @test4(i64* %x) nounwind {
+  %load = load i64* %x, align 8
+  %bswap = call i64 @llvm.bswap.i64(i64 %load)
+  ret i64 %bswap
+; CHECK: test4:
+; CHECK: movbeq	(%rdi), %rax
+}