[llvm] r273879 - Revert 273848, it caused PR28329

[Nico Weber via llvm-commits]

Author: nico
Date: Mon Jun 27 09:36:46 2016
New Revision: 273879

URL: http://llvm.org/viewvc/llvm-project?rev=273879&view=rev
Log:
Revert 273848, it caused PR28329

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
    llvm/trunk/test/CodeGen/X86/avx-vbroadcast.ll
    llvm/trunk/test/CodeGen/X86/vector-shuffle-256-v4.ll

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=273879&r1=273878&r2=273879&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Mon Jun 27 09:36:46 2016
@@ -8510,13 +8510,6 @@ static SDValue lowerVectorShuffleAsBroad
   SDValue V = V1;
   for (;;) {
     switch (V.getOpcode()) {
-    case ISD::BITCAST: {
-      SDValue VSrc = V.getOperand(0);
-      if (NumElts != VSrc.getSimpleValueType().getVectorNumElements())
-        break;
-      V = VSrc;
-      continue;
-    }
     case ISD::CONCAT_VECTORS: {
       int OperandSize = Mask.size() / V.getNumOperands();
       V = V.getOperand(BroadcastIdx / OperandSize);

Modified: llvm/trunk/test/CodeGen/X86/avx-vbroadcast.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/avx-vbroadcast.ll?rev=273879&r1=273878&r2=273879&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/avx-vbroadcast.ll (original)
+++ llvm/trunk/test/CodeGen/X86/avx-vbroadcast.ll Mon Jun 27 09:36:46 2016
@@ -173,12 +173,14 @@ define <8 x i32> @load_splat_8i32_4i32_3
 ; X32-LABEL: load_splat_8i32_4i32_33333333:
 ; X32:       ## BB#0: ## %entry
 ; X32-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; X32-NEXT:    vbroadcastss 12(%eax), %ymm0
+; X32-NEXT:    vpermilps {{.*#+}} xmm0 = mem[3,3,3,3]
+; X32-NEXT:    vinsertf128 $1, %xmm0, %ymm0, %ymm0
 ; X32-NEXT:    retl
 ;
 ; X64-LABEL: load_splat_8i32_4i32_33333333:
 ; X64:       ## BB#0: ## %entry
-; X64-NEXT:    vbroadcastss 12(%rdi), %ymm0
+; X64-NEXT:    vpermilps {{.*#+}} xmm0 = mem[3,3,3,3]
+; X64-NEXT:    vinsertf128 $1, %xmm0, %ymm0, %ymm0
 ; X64-NEXT:    retq
 entry:
   %ld = load <4 x i32>, <4 x i32>* %ptr
@@ -275,12 +277,16 @@ define <4 x i64> @load_splat_4i64_2i64_1
 ; X32-LABEL: load_splat_4i64_2i64_1111:
 ; X32:       ## BB#0: ## %entry
 ; X32-NEXT:    movl {{[0-9]+}}(%esp), %eax
-; X32-NEXT:    vbroadcastsd 8(%eax), %ymm0
+; X32-NEXT:    vmovaps (%eax), %xmm0
+; X32-NEXT:    vmovhlps {{.*#+}} xmm0 = xmm0[1,1]
+; X32-NEXT:    vinsertf128 $1, %xmm0, %ymm0, %ymm0
 ; X32-NEXT:    retl
 ;
 ; X64-LABEL: load_splat_4i64_2i64_1111:
 ; X64:       ## BB#0: ## %entry
-; X64-NEXT:    vbroadcastsd 8(%rdi), %ymm0
+; X64-NEXT:    vmovaps (%rdi), %xmm0
+; X64-NEXT:    vmovhlps {{.*#+}} xmm0 = xmm0[1,1]
+; X64-NEXT:    vinsertf128 $1, %xmm0, %ymm0, %ymm0
 ; X64-NEXT:    retq
 entry:
   %ld = load <2 x i64>, <2 x i64>* %ptr

Modified: llvm/trunk/test/CodeGen/X86/vector-shuffle-256-v4.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/vector-shuffle-256-v4.ll?rev=273879&r1=273878&r2=273879&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/vector-shuffle-256-v4.ll (original)
+++ llvm/trunk/test/CodeGen/X86/vector-shuffle-256-v4.ll Mon Jun 27 09:36:46 2016
@@ -1320,7 +1320,8 @@ define <4 x double> @splat_v4f64(<2 x do
 define <4 x i64> @splat_mem_v4i64_from_v2i64(<2 x i64>* %ptr) {
 ; AVX1-LABEL: splat_mem_v4i64_from_v2i64:
 ; AVX1:       # BB#0:
-; AVX1-NEXT:    vbroadcastsd (%rdi), %ymm0
+; AVX1-NEXT:    vmovddup {{.*#+}} xmm0 = mem[0,0]
+; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm0, %ymm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: splat_mem_v4i64_from_v2i64: