Legalizer: Make bswap promotion safe for vectors.
llvm-svn: 209202
diff --git a/llvm/test/CodeGen/X86/bswap-vector.ll b/llvm/test/CodeGen/X86/bswap-vector.ll
index a18fd68..3c931db 100644
--- a/llvm/test/CodeGen/X86/bswap-vector.ll
+++ b/llvm/test/CodeGen/X86/bswap-vector.ll
@@ -122,6 +122,23 @@
; CHECK-AVX2-NEXT: retq
}
+declare <4 x i16> @llvm.bswap.v4i16(<4 x i16>)
+
+define <4 x i16> @test7(<4 x i16> %v) #0 {
+entry:
+ %r = call <4 x i16> @llvm.bswap.v4i16(<4 x i16> %v)
+ ret <4 x i16> %r
+
+; CHECK-SSSE3-LABEL: @test7
+; CHECK-SSSE3: pshufb
+; CHECK-SSSE3: psrld $16
+; CHECK-SSSE3-NEXT: retq
+
+; CHECK-AVX2-LABEL: @test7
+; CHECK-AVX2: vpshufb
+; CHECK-AVX2: vpsrld $16
+; CHECK-AVX2-NEXT: retq
+}
attributes #0 = { nounwind uwtable }