From: Craig Topper <craig.topper@gmail.com>
Date: Fri, 13 Jan 2012 06:59:47 +0000 (+0000)
Subject: Add patterns for v16i16 and v32i8 immAllZerosV to select VPXOR to match v4i64 and... 
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=c30432ab573a3755ccd15dfeb03d64e6c0b90ccb;p=oota-llvm.git

Add patterns for v16i16 and v32i8 immAllZerosV to select VPXOR to match v4i64 and v8i32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148106 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td
index 51cc7f384e5..d3cd6a82fdb 100644
--- a/lib/Target/X86/X86InstrSSE.td
+++ b/lib/Target/X86/X86InstrSSE.td
@@ -289,6 +289,14 @@ def AVX_SET0PDY : PDI<0x57, MRMInitReg, (outs VR256:$dst), (ins), "",
 
 // AVX has no support for 256-bit integer instructions, but since the 128-bit
 // VPXOR instruction writes zero to its upper part, it's safe build zeros.
+def : Pat<(v32i8 immAllZerosV), (SUBREG_TO_REG (i8 0), (V_SET0), sub_xmm)>;
+def : Pat<(bc_v32i8 (v8f32 immAllZerosV)),
+          (SUBREG_TO_REG (i8 0), (V_SET0), sub_xmm)>;
+
+def : Pat<(v16i16 immAllZerosV), (SUBREG_TO_REG (i16 0), (V_SET0), sub_xmm)>;
+def : Pat<(bc_v16i16 (v8f32 immAllZerosV)),
+          (SUBREG_TO_REG (i16 0), (V_SET0), sub_xmm)>;
+
 def : Pat<(v8i32 immAllZerosV), (SUBREG_TO_REG (i32 0), (V_SET0), sub_xmm)>;
 def : Pat<(bc_v8i32 (v8f32 immAllZerosV)),
           (SUBREG_TO_REG (i32 0), (V_SET0), sub_xmm)>;
diff --git a/test/CodeGen/X86/avx2-shift.ll b/test/CodeGen/X86/avx2-shift.ll
index b6cf54ebe8f..1f192a0d323 100644
--- a/test/CodeGen/X86/avx2-shift.ll
+++ b/test/CodeGen/X86/avx2-shift.ll
@@ -231,7 +231,7 @@ define <32 x i8> @sra_v32i8_7(<32 x i8> %A) nounwind {
   %B = ashr <32 x i8> %A, <i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7>
   ret <32 x i8> %B
 ; CHECK: sra_v32i8_7:
-; CHECK: vxorps
+; CHECK: vpxor
 ; CHECK: vpcmpgtb
 ; CHECK: ret
 }