[llvm] r237558 - AVX-512: Added patterns for scalar-to-vector broadcast

[Elena Demikhovsky]

Author: delena
Date: Mon May 18 02:06:23 2015
New Revision: 237558

URL: http://llvm.org/viewvc/llvm-project?rev=237558&view=rev
Log:
AVX-512: Added patterns for scalar-to-vector broadcast


Modified:
    llvm/trunk/lib/Target/X86/X86InstrAVX512.td
    llvm/trunk/test/CodeGen/X86/avx512-vbroadcast.ll

Modified: llvm/trunk/lib/Target/X86/X86InstrAVX512.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrAVX512.td?rev=237558&r1=237557&r2=237558&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrAVX512.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrAVX512.td Mon May 18 02:06:23 2015
@@ -941,13 +941,23 @@ def : Pat<(v8i64 (int_x86_avx512_pbroadc
 
 def : Pat<(v16f32 (X86VBroadcast (v16f32 VR512:$src))),
           (VBROADCASTSSZr (EXTRACT_SUBREG (v16f32 VR512:$src), sub_xmm))>;
+def : Pat<(v16f32 (X86VBroadcast (v8f32 VR256X:$src))),
+          (VBROADCASTSSZr (EXTRACT_SUBREG (v8f32 VR256X:$src), sub_xmm))>;
+
 def : Pat<(v8f64 (X86VBroadcast (v8f64 VR512:$src))),
           (VBROADCASTSDZr (EXTRACT_SUBREG (v8f64 VR512:$src), sub_xmm))>;
+def : Pat<(v8f64 (X86VBroadcast (v4f64 VR256X:$src))),
+          (VBROADCASTSDZr (EXTRACT_SUBREG (v4f64 VR256X:$src), sub_xmm))>;
 
 def : Pat<(v16i32 (X86VBroadcast (v16i32 VR512:$src))),
           (VPBROADCASTDZrr (EXTRACT_SUBREG (v16i32 VR512:$src), sub_xmm))>;
+def : Pat<(v16i32 (X86VBroadcast (v8i32 VR256X:$src))),
+          (VPBROADCASTDZrr (EXTRACT_SUBREG (v8i32 VR256X:$src), sub_xmm))>;
+
 def : Pat<(v8i64 (X86VBroadcast (v8i64 VR512:$src))),
           (VPBROADCASTQZrr (EXTRACT_SUBREG (v8i64 VR512:$src), sub_xmm))>;
+def : Pat<(v8i64 (X86VBroadcast (v4i64 VR256X:$src))),
+          (VPBROADCASTQZrr (EXTRACT_SUBREG (v4i64 VR256X:$src), sub_xmm))>;
 
 def : Pat<(v16f32 (int_x86_avx512_vbroadcast_ss_ps_512 (v4f32 VR128X:$src))),
           (VBROADCASTSSZr VR128X:$src)>;

Modified: llvm/trunk/test/CodeGen/X86/avx512-vbroadcast.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/avx512-vbroadcast.ll?rev=237558&r1=237557&r2=237558&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/avx512-vbroadcast.ll (original)
+++ llvm/trunk/test/CodeGen/X86/avx512-vbroadcast.ll Mon May 18 02:06:23 2015
@@ -300,3 +300,31 @@ entry:
   %vecinit7.i = insertelement <8 x double> %vecinit6.i, double %0, i32 7
   ret <8 x double> %vecinit7.i
 }
+
+; CHECK-LABEL: test1
+; CHECK: vbroadcastss
+define <16 x float> @test1(<8 x float>%a)  {
+  %res = shufflevector <8 x float> %a, <8 x float> undef, <16 x i32> zeroinitializer
+  ret <16 x float>%res
+}
+
+; CHECK-LABEL: test2
+; CHECK: vbroadcastsd
+define <8 x double> @test2(<4 x double>%a)  {
+  %res = shufflevector <4 x double> %a, <4 x double> undef, <8 x i32> zeroinitializer
+  ret <8 x double>%res
+}
+
+; CHECK-LABEL: test3
+; CHECK: vpbroadcastd
+define <16 x i32> @test3(<8 x i32>%a)  {
+  %res = shufflevector <8 x i32> %a, <8 x i32> undef, <16 x i32> zeroinitializer
+  ret <16 x i32>%res
+}
+
+; CHECK-LABEL: test4
+; CHECK: vpbroadcastq
+define <8 x i64> @test4(<4 x i64>%a)  {
+  %res = shufflevector <4 x i64> %a, <4 x i64> undef, <8 x i32> zeroinitializer
+  ret <8 x i64>%res
+}