[llvm] r292051 - [AVX-512] Replicate some broadcast patterns to VLX and disable the AVX2 patterns when VLX is available.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Sat Jan 14 23:47:45 2017
New Revision: 292051

URL: http://llvm.org/viewvc/llvm-project?rev=292051&view=rev
Log:
[AVX-512] Replicate some broadcast patterns to VLX and disable the AVX2 patterns when VLX is available.

Modified:
    llvm/trunk/lib/Target/X86/X86InstrAVX512.td
    llvm/trunk/lib/Target/X86/X86InstrSSE.td

Modified: llvm/trunk/lib/Target/X86/X86InstrAVX512.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrAVX512.td?rev=292051&r1=292050&r2=292051&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrAVX512.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrAVX512.td Sat Jan 14 23:47:45 2017
@@ -1310,6 +1310,13 @@ defm VBROADCASTI32X2  : avx512_common_br
 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))),

Modified: llvm/trunk/lib/Target/X86/X86InstrSSE.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrSSE.td?rev=292051&r1=292050&r2=292051&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrSSE.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrSSE.td Sat Jan 14 23:47:45 2017
@@ -8279,7 +8279,7 @@ let Predicates = [HasAVX2, NoVLX_Or_NoBW
             (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))),