Don't produce a vmovntdq if we don't have AVX support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131330 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td
index 4b6550bddd2de3946ca915c009654cbcb5df1b41..87f54b6583191fd0e210bbcdcd50b32da9924421 100644 (file)
--- a/lib/Target/X86/X86InstrSSE.td
+++ b/lib/Target/X86/X86InstrSSE.td
@@ -1900,7 +1900,7 @@ let AddedComplexity = 400 in { // Prefer non-temporal versions
                                                      addr:$dst)]>, VEX;
 
   def : Pat<(alignednontemporalstore (v2i64 VR128:$src), addr:$dst),
-            (VMOVNTDQmr addr:$dst, VR128:$src)>;
+            (VMOVNTDQmr addr:$dst, VR128:$src)>, Requires<[HasAVX]>;
 
   def VMOVNTPSYmr : VPSI<0x2B, MRMDestMem, (outs),
                        (ins f256mem:$dst, VR256:$src),

diff --git a/test/CodeGen/X86/movntdq-no-avx.ll b/test/CodeGen/X86/movntdq-no-avx.ll
new file mode 100644 (file)
index 0000000..8b7e6ef
--- /dev/null
+++ b/test/CodeGen/X86/movntdq-no-avx.ll
@@ -0,0 +1,12 @@
+; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
+
+; Test that we produce a movntdq, not a vmovntdq
+; CHECK-NOT: vmovntdq
+
+define void @test(<2 x i64>* nocapture %a, <2 x i64> %b) nounwind optsize {
+entry:
+  store <2 x i64> %b, <2 x i64>* %a, align 16, !nontemporal !0
+  ret void
+}
+
+!0 = metadata !{i32 1}