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R600/SI: Custom lower i1 stores 

These are sometimes created by the shrink to boolean optimization in the
globalopt pass.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
llvm-svn: 203280
This commit is contained in:
Tom Stellard 2014-03-07 20:12:33 +00:00
parent b89843299a
commit 1c8788ef5a
2 changed files with 26 additions and 3 deletions
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6
llvm/lib/Target/R600/SIISelLowering.cpp
View File

@ -98,6 +98,7 @@ SITargetLowering::SITargetLowering(TargetMachine &TM) :
setOperationAction(ISD::LOAD, MVT::v4i32, Custom);
setOperationAction(ISD::LOAD, MVT::v8i32, Custom);
setOperationAction(ISD::STORE, MVT::i1, Custom);
setOperationAction(ISD::STORE, MVT::i32, Custom);
setOperationAction(ISD::STORE, MVT::i64, Custom);
setOperationAction(ISD::STORE, MVT::i128, Custom);
@ -844,6 +845,11 @@ SDValue SITargetLowering::LowerSTORE(SDValue Op, SelectionDAG &DAG) const {
if (VT.isVector() && VT.getVectorNumElements() >= 8)
return SplitVectorStore(Op, DAG);
if (VT == MVT::i1)
return DAG.getTruncStore(Store->getChain(), DL,
DAG.getSExtOrTrunc(Store->getValue(), DL, MVT::i32),
Store->getBasePtr(), MVT::i1, Store->getMemOperand());
if (Store->getAddressSpace() != AMDGPUAS::PRIVATE_ADDRESS)
return SDValue();

23
llvm/test/CodeGen/R600/store.ll
View File

@ -1,10 +1,18 @@
; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck --check-prefix=EG-CHECK %s
; RUN: llc < %s -march=r600 -mcpu=cayman | FileCheck --check-prefix=CM-CHECK %s
; RUN: llc < %s -march=r600 -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=SI-CHECK %s
; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck --check-prefix=EG-CHECK --check-prefix=FUNC %s
; RUN: llc < %s -march=r600 -mcpu=cayman | FileCheck --check-prefix=CM-CHECK --check-prefix=FUNC %s
; RUN: llc < %s -march=r600 -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=SI-CHECK --check-prefix=FUNC %s
;===------------------------------------------------------------------------===;
; Global Address Space
;===------------------------------------------------------------------------===;
; FUNC-LABEL: @store_i1
; EG-CHECK: MEM_RAT MSKOR
; SI-CHECK: BUFFER_STORE_BYTE
define void @store_i1(i1 addrspace(1)* %out) {
entry:
store i1 true, i1 addrspace(1)* %out
ret void
}
; i8 store
; EG-CHECK-LABEL: @store_i8
@ -173,6 +181,15 @@ entry:
; Local Address Space
;===------------------------------------------------------------------------===;
; FUNC-LABEL: @store_local_i1
; EG-CHECK: LDS_BYTE_WRITE
; SI-CHECK: DS_WRITE_B8
define void @store_local_i1(i1 addrspace(3)* %out) {
entry:
store i1 true, i1 addrspace(3)* %out
ret void
}
; EG-CHECK-LABEL: @store_local_i8
; EG-CHECK: LDS_BYTE_WRITE
; SI-CHECK-LABEL: @store_local_i8