[llvm] r215270 - R600/SI: Custom lower CONCAT_VECTORS

[Tom Stellard]

Author: tstellar
Date: Fri Aug  8 20:06:56 2014
New Revision: 215270

URL: http://llvm.org/viewvc/llvm-project?rev=215270&view=rev
Log:
R600/SI: Custom lower CONCAT_VECTORS

This will lower them using register copies rather than loads and stores
to the stack.

Modified:
    llvm/trunk/lib/Target/R600/SIISelLowering.cpp
    llvm/trunk/test/CodeGen/R600/concat_vectors.ll

Modified: llvm/trunk/lib/Target/R600/SIISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/SIISelLowering.cpp?rev=215270&r1=215269&r2=215270&view=diff
==============================================================================
--- llvm/trunk/lib/Target/R600/SIISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/R600/SIISelLowering.cpp Fri Aug  8 20:06:56 2014
@@ -196,10 +196,12 @@ SITargetLowering::SITargetLowering(Targe
       case ISD::BITCAST:
       case ISD::EXTRACT_VECTOR_ELT:
       case ISD::INSERT_VECTOR_ELT:
-      case ISD::CONCAT_VECTORS:
       case ISD::INSERT_SUBVECTOR:
       case ISD::EXTRACT_SUBVECTOR:
         break;
+      case ISD::CONCAT_VECTORS:
+        setOperationAction(Op, VT, Custom);
+        break;
       default:
         setOperationAction(Op, VT, Expand);
         break;

Modified: llvm/trunk/test/CodeGen/R600/concat_vectors.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/R600/concat_vectors.ll?rev=215270&r1=215269&r2=215270&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/R600/concat_vectors.ll (original)
+++ llvm/trunk/test/CodeGen/R600/concat_vectors.ll Fri Aug  8 20:06:56 2014
@@ -77,8 +77,7 @@ define void @test_concat_v4f32(<8 x floa
 }
 
 ; FUNC-LABEL: @test_concat_v8f32
-; FIXME: This is currently being expanded with loads / stores to the stack.
-; FIXME-SI-NOT: S_MOV_B32 s{{[0-9]}}, 0x80f000
+; SI-NOT: S_MOV_B32 s{{[0-9]}}, 0x80f000
 ; SI-NOT: MOVREL
 define void @test_concat_v8f32(<16 x float> addrspace(1)* %out, <8 x float> %a, <8 x float> %b) nounwind {
   %concat = shufflevector <8 x float> %a, <8 x float> %b, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>