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R600: Use correct LoadExtType when lowering kernel arguments 

Reviewed-by: Vincent Lejeune <vljn at ovi.com>
llvm-svn: 186915
This commit is contained in:
Tom Stellard 2013-07-23 01:47:58 +00:00
parent 33dd04bfbe
commit 78e012969c
2 changed files with 28 additions and 1 deletions
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10
llvm/lib/Target/R600/R600ISelLowering.cpp
View File

@ -1229,9 +1229,17 @@ SDValue R600TargetLowering::LowerFormalArguments(
} else {
ArgVT = VT;
}
ISD::LoadExtType LoadType = ISD::EXTLOAD;
if (Ins[i].Flags.isZExt()) {
LoadType = ISD::ZEXTLOAD;
} else if (Ins[i].Flags.isSExt()) {
LoadType = ISD::SEXTLOAD;
}
PointerType *PtrTy = PointerType::get(VT.getTypeForEVT(*DAG.getContext()),
AMDGPUAS::PARAM_I_ADDRESS);
SDValue Arg = DAG.getExtLoad(ISD::ZEXTLOAD, DL, VT, DAG.getRoot(),
SDValue Arg = DAG.getExtLoad(LoadType, DL, VT, DAG.getRoot(),
DAG.getConstant(ParamOffsetBytes, MVT::i32),
MachinePointerInfo(UndefValue::get(PtrTy)),
ArgVT, false, false, ArgBytes);

19
llvm/test/CodeGen/R600/short-args.ll
View File

@ -21,6 +21,15 @@ entry:
ret void
}
; CHECK: @i8_sext_arg
; CHECK: VTX_READ_8 T{{[0-9]+\.X, T[0-9]+\.X}}
define void @i8_sext_arg(i32 addrspace(1)* nocapture %out, i8 signext %in) nounwind {
entry:
%0 = sext i8 %in to i32
store i32 %0, i32 addrspace(1)* %out, align 4
ret void
}
; CHECK: @i16_arg
; CHECK: VTX_READ_16 T{{[0-9]+\.X, T[0-9]+\.X}}
@ -40,3 +49,13 @@ entry:
store i32 %0, i32 addrspace(1)* %out, align 4
ret void
}
; CHECK: @i16_sext_arg
; CHECK: VTX_READ_16 T{{[0-9]+\.X, T[0-9]+\.X}}
define void @i16_sext_arg(i32 addrspace(1)* nocapture %out, i16 signext %in) nounwind {
entry:
%0 = sext i16 %in to i32
store i32 %0, i32 addrspace(1)* %out, align 4
ret void
}