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R600: Fix selection failure on EXTLOAD 

llvm-svn: 194547
This commit is contained in:
Matt Arsenault 2013-11-13 02:39:07 +00:00
parent 6e49c48f97
commit 00a0d6f672
2 changed files with 60 additions and 1 deletions
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10
llvm/lib/Target/R600/R600ISelLowering.cpp
View File

@ -90,10 +90,16 @@ R600TargetLowering::R600TargetLowering(TargetMachine &TM) :
setOperationAction(ISD::LOAD, MVT::i32, Custom);
setOperationAction(ISD::LOAD, MVT::v2i32, Custom);
setOperationAction(ISD::LOAD, MVT::v4i32, Custom);
// EXTLOAD should be the same as ZEXTLOAD. It is legal for some address
// spaces, so it is custom lowered to handle those where it isn't.
setLoadExtAction(ISD::SEXTLOAD, MVT::i8, Custom);
setLoadExtAction(ISD::SEXTLOAD, MVT::i16, Custom);
setLoadExtAction(ISD::ZEXTLOAD, MVT::i8, Custom);
setLoadExtAction(ISD::ZEXTLOAD, MVT::i16, Custom);
setLoadExtAction(ISD::EXTLOAD, MVT::i8, Custom);
setLoadExtAction(ISD::EXTLOAD, MVT::i16, Custom);
setOperationAction(ISD::STORE, MVT::i8, Custom);
setOperationAction(ISD::STORE, MVT::i32, Custom);
setOperationAction(ISD::STORE, MVT::v2i32, Custom);
@ -1226,7 +1232,9 @@ SDValue R600TargetLowering::LowerLOAD(SDValue Op, SelectionDAG &DAG) const
}
int ConstantBlock = ConstantAddressBlock(LoadNode->getAddressSpace());
if (ConstantBlock > -1 && LoadNode->getExtensionType() != ISD::SEXTLOAD) {
if (ConstantBlock > -1 &&
((LoadNode->getExtensionType() == ISD::NON_EXTLOAD) ||
(LoadNode->getExtensionType() == ISD::ZEXTLOAD))) {
SDValue Result;
if (isa<ConstantExpr>(LoadNode->getSrcValue()) ||
isa<Constant>(LoadNode->getSrcValue()) ||

51
llvm/test/CodeGen/R600/extload.ll Normal file
View File

@ -0,0 +1,51 @@
; RUN: llc -march=r600 -mcpu=cypress < %s | FileCheck -check-prefix=EG %s
; EG-LABEL: @anyext_load_i8:
; EG: AND_INT
; EG-NEXT: 255
define void @anyext_load_i8(i8 addrspace(1)* nocapture noalias %out, i8 addrspace(1)* nocapture noalias %src) nounwind {
%cast = bitcast i8 addrspace(1)* %src to i32 addrspace(1)*
%load = load i32 addrspace(1)* %cast, align 1
%x = bitcast i32 %load to <4 x i8>
%castOut = bitcast i8 addrspace(1)* %out to <4 x i8> addrspace(1)*
store <4 x i8> %x, <4 x i8> addrspace(1)* %castOut, align 1
ret void
}
; EG-LABEL: @anyext_load_i16:
; EG: AND_INT
; EG: LSHL
; EG: 65535
define void @anyext_load_i16(i16 addrspace(1)* nocapture noalias %out, i16 addrspace(1)* nocapture noalias %src) nounwind {
%cast = bitcast i16 addrspace(1)* %src to i32 addrspace(1)*
%load = load i32 addrspace(1)* %cast, align 1
%x = bitcast i32 %load to <2 x i16>
%castOut = bitcast i16 addrspace(1)* %out to <2 x i16> addrspace(1)*
store <2 x i16> %x, <2 x i16> addrspace(1)* %castOut, align 1
ret void
}
; EG-LABEL: @anyext_load_lds_i8:
; EG: AND_INT
; EG-NEXT: 255
define void @anyext_load_lds_i8(i8 addrspace(3)* nocapture noalias %out, i8 addrspace(3)* nocapture noalias %src) nounwind {
%cast = bitcast i8 addrspace(3)* %src to i32 addrspace(3)*
%load = load i32 addrspace(3)* %cast, align 1
%x = bitcast i32 %load to <4 x i8>
%castOut = bitcast i8 addrspace(3)* %out to <4 x i8> addrspace(3)*
store <4 x i8> %x, <4 x i8> addrspace(3)* %castOut, align 1
ret void
}
; EG-LABEL: @anyext_load_lds_i16:
; EG: AND_INT
; EG: LSHL
; EG: 65535
define void @anyext_load_lds_i16(i16 addrspace(3)* nocapture noalias %out, i16 addrspace(3)* nocapture noalias %src) nounwind {
%cast = bitcast i16 addrspace(3)* %src to i32 addrspace(3)*
%load = load i32 addrspace(3)* %cast, align 1
%x = bitcast i32 %load to <2 x i16>
%castOut = bitcast i16 addrspace(3)* %out to <2 x i16> addrspace(3)*
store <2 x i16> %x, <2 x i16> addrspace(3)* %castOut, align 1
ret void
}