[llvm] r288049 - [X86][SSE] Add initial support for combining (V)PMOVZX with shuffles.
Simon Pilgrim via llvm-commits
llvm-commits at lists.llvm.org
Mon Nov 28 09:58:20 PST 2016
Author: rksimon
Date: Mon Nov 28 11:58:19 2016
New Revision: 288049
URL: http://llvm.org/viewvc/llvm-project?rev=288049&view=rev
Log:
[X86][SSE] Add initial support for combining (V)PMOVZX with shuffles.
Modified:
llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
llvm/trunk/test/CodeGen/X86/2011-10-21-widen-cmp.ll
llvm/trunk/test/CodeGen/X86/avx2-vbroadcast.ll
llvm/trunk/test/CodeGen/X86/avx512-cvt.ll
llvm/trunk/test/CodeGen/X86/sse-minmax.ll
Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=288049&r1=288048&r2=288049&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Mon Nov 28 11:58:19 2016
@@ -5509,6 +5509,15 @@ static bool getFauxShuffleMask(SDValue N
}
return true;
}
+ case X86ISD::VZEXT: {
+ // TODO - add support for VPMOVZX with smaller input vector types.
+ SDValue Op0 = N.getOperand(0);
+ if (VT.getSizeInBits() != Op0.getValueSizeInBits())
+ break;
+ DecodeZeroExtendMask(Op0.getSimpleValueType().getScalarType(), VT, Mask);
+ Ops.push_back(Op0);
+ return true;
+ }
}
return false;
Modified: llvm/trunk/test/CodeGen/X86/2011-10-21-widen-cmp.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/2011-10-21-widen-cmp.ll?rev=288049&r1=288048&r2=288049&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/2011-10-21-widen-cmp.ll (original)
+++ llvm/trunk/test/CodeGen/X86/2011-10-21-widen-cmp.ll Mon Nov 28 11:58:19 2016
@@ -9,9 +9,7 @@ define void @cmp_2_floats(<2 x float> %a
; CHECK: # BB#0: # %entry
; CHECK-NEXT: movaps %xmm0, %xmm2
; CHECK-NEXT: cmpordps %xmm0, %xmm0
-; CHECK-NEXT: pmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
-; CHECK-NEXT: psllq $32, %xmm0
-; CHECK-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,3,2,3]
+; CHECK-NEXT: insertps {{.*#+}} xmm0 = xmm0[0,1],zero,xmm0[1]
; CHECK-NEXT: pslld $31, %xmm0
; CHECK-NEXT: blendvps %xmm2, %xmm1
; CHECK-NEXT: movlps %xmm1, (%rax)
@@ -26,7 +24,7 @@ entry:
define void @cmp_2_doubles(<2 x double> %a, <2 x double> %b) {
; CHECK-LABEL: cmp_2_doubles:
; CHECK: # BB#0: # %entry
-; CHECK-NEXT: movapd %xmm0, %xmm2
+; CHECK-NEXT: movapd %xmm0, %xmm2
; CHECK-NEXT: cmpordpd %xmm0, %xmm0
; CHECK-NEXT: blendvpd %xmm2, %xmm1
; CHECK-NEXT: movapd %xmm1, (%rax)
Modified: llvm/trunk/test/CodeGen/X86/avx2-vbroadcast.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/avx2-vbroadcast.ll?rev=288049&r1=288048&r2=288049&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/avx2-vbroadcast.ll (original)
+++ llvm/trunk/test/CodeGen/X86/avx2-vbroadcast.ll Mon Nov 28 11:58:19 2016
@@ -279,15 +279,15 @@ define <16 x i16> @broadcast_mem_v4i16_v
; X32-AVX2-LABEL: broadcast_mem_v4i16_v16i16:
; X32-AVX2: ## BB#0:
; X32-AVX2-NEXT: movl {{[0-9]+}}(%esp), %eax
-; X32-AVX2-NEXT: vpmovzxwd {{.*#+}} xmm0 = mem[0],zero,mem[1],zero,mem[2],zero,mem[3],zero
-; X32-AVX2-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
+; X32-AVX2-NEXT: vmovsd {{.*#+}} xmm0 = mem[0],zero
+; X32-AVX2-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[0,1,2,3,4,5,6,7,4,5,6,7,6,7],zero,zero
; X32-AVX2-NEXT: vpbroadcastq %xmm0, %ymm0
; X32-AVX2-NEXT: retl
;
; X64-AVX2-LABEL: broadcast_mem_v4i16_v16i16:
; X64-AVX2: ## BB#0:
-; X64-AVX2-NEXT: vpmovzxwd {{.*#+}} xmm0 = mem[0],zero,mem[1],zero,mem[2],zero,mem[3],zero
-; X64-AVX2-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
+; X64-AVX2-NEXT: vmovq {{.*#+}} xmm0 = mem[0],zero
+; X64-AVX2-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[0,1,2,3,4,5,6,7,4,5,6,7,6,7],zero,zero
; X64-AVX2-NEXT: vpbroadcastq %xmm0, %ymm0
; X64-AVX2-NEXT: retq
;
Modified: llvm/trunk/test/CodeGen/X86/avx512-cvt.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/avx512-cvt.ll?rev=288049&r1=288048&r2=288049&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/avx512-cvt.ll (original)
+++ llvm/trunk/test/CodeGen/X86/avx512-cvt.ll Mon Nov 28 11:58:19 2016
@@ -923,9 +923,7 @@ define <2 x float> @sitofp_2i1_float(<2
; KNL: ## BB#0:
; KNL-NEXT: vxorps %xmm1, %xmm1, %xmm1
; KNL-NEXT: vcmpltps %xmm0, %xmm1, %xmm0
-; KNL-NEXT: vpmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
-; KNL-NEXT: vpsllq $32, %xmm0, %xmm0
-; KNL-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[1,3,2,3]
+; KNL-NEXT: vinsertps {{.*#+}} xmm0 = xmm0[0,1],zero,xmm0[1]
; KNL-NEXT: vcvtdq2ps %xmm0, %xmm0
; KNL-NEXT: retq
;
Modified: llvm/trunk/test/CodeGen/X86/sse-minmax.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/sse-minmax.ll?rev=288049&r1=288048&r2=288049&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/sse-minmax.ll (original)
+++ llvm/trunk/test/CodeGen/X86/sse-minmax.ll Mon Nov 28 11:58:19 2016
@@ -1337,9 +1337,7 @@ define <2 x float> @test_maxps_illegal_v
; STRICT-NEXT: movaps %xmm0, %xmm2
; STRICT-NEXT: movaps %xmm1, %xmm0
; STRICT-NEXT: cmpleps %xmm2, %xmm0
-; STRICT-NEXT: pmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
-; STRICT-NEXT: psllq $32, %xmm0
-; STRICT-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,3,2,3]
+; STRICT-NEXT: insertps {{.*#+}} xmm0 = xmm0[0,1],zero,xmm0[1]
; STRICT-NEXT: pslld $31, %xmm0
; STRICT-NEXT: blendvps %xmm2, %xmm1
; STRICT-NEXT: movaps %xmm1, %xmm0
@@ -1360,9 +1358,7 @@ define <2 x float> @test_minps_illegal_v
; STRICT: # BB#0:
; STRICT-NEXT: movaps %xmm0, %xmm2
; STRICT-NEXT: cmpleps %xmm1, %xmm0
-; STRICT-NEXT: pmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
-; STRICT-NEXT: psllq $32, %xmm0
-; STRICT-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,3,2,3]
+; STRICT-NEXT: insertps {{.*#+}} xmm0 = xmm0[0,1],zero,xmm0[1]
; STRICT-NEXT: pslld $31, %xmm0
; STRICT-NEXT: blendvps %xmm2, %xmm1
; STRICT-NEXT: movaps %xmm1, %xmm0
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