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R600/SI: Avoid generating REGISTER_LOAD instructions.

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SI doesn't use REGISTER_LOAD anymore, but it was still hitting this code
path for 8-bit and 16-bit private loads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214865 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard 2014-08-05 14:40:52 +00:00
parent deaa09e169
commit 9a7e35aecc
2 changed files with 4 additions and 2 deletions
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3
lib/Target/R600/AMDGPUISelLowering.cpp
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@ -1285,7 +1285,8 @@ SDValue AMDGPUTargetLowering::LowerLOAD(SDValue Op, SelectionDAG &DAG) const {
return DAG.getMergeValues(Ops, DL);
}
if (Load->getAddressSpace() != AMDGPUAS::PRIVATE_ADDRESS ||
if (Subtarget->getGeneration() >= AMDGPUSubtarget::SOUTHERN_ISLANDS ||
Load->getAddressSpace() != AMDGPUAS::PRIVATE_ADDRESS ||
ExtType == ISD::NON_EXTLOAD || Load->getMemoryVT().bitsGE(MVT::i32))
return SDValue();

3
test/CodeGen/R600/private-memory.ll
View File

@ -118,7 +118,8 @@ for.end:
; SI-PROMOTE: BUFFER_STORE_SHORT v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], v{{[0-9]+}}, s{{[0-9]+}}
; SI-PROMOTE: BUFFER_STORE_SHORT v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}], v{{[0-9]+}}, s{{[0-9]+}}
; SI_PROMOTE: BUFFER_LOAD_SSHORT v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}] + v{{[0-9]+}}, s{{[0-9]+}}
; SI-PROMOTE-NOT: MOVREL
; SI-PROMOTE: BUFFER_LOAD_SSHORT v{{[0-9]+}}, s[{{[0-9]+:[0-9]+}}] + v{{[0-9]+}} + s{{[0-9]+}}
define void @short_array(i32 addrspace(1)* %out, i32 %index) {
entry:
%0 = alloca [2 x i16]