[AVX-512] Replicate some broadcast patterns to VLX and disable the AVX2 patterns...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292051 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrAVX512.td b/lib/Target/X86/X86InstrAVX512.td
index ddf269d..849c235 100644 (file)
--- a/lib/Target/X86/X86InstrAVX512.td
+++ b/lib/Target/X86/X86InstrAVX512.td
@@ -1310,6 +1310,13 @@ defm VBROADCASTI32X2  : avx512_common_broadcast_i32x2<0x59, "vbroadcasti32x2",
 defm VBROADCASTF32X2  : avx512_common_broadcast_32x2<0x19, "vbroadcastf32x2",
                                           avx512vl_f32_info, avx512vl_f64_info>;
 
+let Predicates = [HasVLX] in {
+def : Pat<(v8f32 (X86VBroadcast (v8f32 VR256X:$src))),
+          (VBROADCASTSSZ256r (EXTRACT_SUBREG (v8f32 VR256X:$src), sub_xmm))>;
+def : Pat<(v4f64 (X86VBroadcast (v4f64 VR256X:$src))),
+          (VBROADCASTSDZ256r (EXTRACT_SUBREG (v4f64 VR256X:$src), sub_xmm))>;
+}
+
 def : Pat<(v16f32 (X86VBroadcast (v16f32 VR512:$src))),
           (VBROADCASTSSZr (EXTRACT_SUBREG (v16f32 VR512:$src), sub_xmm))>;
 def : Pat<(v16f32 (X86VBroadcast (v8f32 VR256X:$src))),

diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td
index 6f3623e..81a61e7 100644 (file)
--- a/lib/Target/X86/X86InstrSSE.td
+++ b/lib/Target/X86/X86InstrSSE.td
@@ -8279,7 +8279,7 @@ let Predicates = [HasAVX2, NoVLX_Or_NoBWI] in {
             (VPBROADCASTWYrm addr:$src)>;
 }
 
-let Predicates = [HasAVX2] in {
+let Predicates = [HasAVX2, NoVLX] in {
   // Provide aliases for broadcast from the same register class that
   // automatically does the extract.
   def : Pat<(v8f32 (X86VBroadcast (v8f32 VR256:$src))),