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[AArch64] Correctly deal with VPR stack parameter passing. 

llvm-svn: 210067
This commit is contained in:
Jiangning Liu 2014-06-03 03:25:09 +00:00
parent 9aee050a0c
commit cc4f38bc28
2 changed files with 18 additions and 3 deletions
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13
llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
View File

@ -1711,7 +1711,9 @@ SDValue AArch64TargetLowering::LowerFormalArguments(
InVals.push_back(FrameIdxN);
continue;
} if (VA.isRegLoc()) {
}
if (VA.isRegLoc()) {
// Arguments stored in registers.
EVT RegVT = VA.getLocVT();
@ -1772,25 +1774,30 @@ SDValue AArch64TargetLowering::LowerFormalArguments(
SDValue FIN = DAG.getFrameIndex(FI, getPointerTy());
SDValue ArgValue;
// For NON_EXTLOAD, generic code in getLoad assert(ValVT == MemVT)
ISD::LoadExtType ExtType = ISD::NON_EXTLOAD;
MVT MemVT = VA.getValVT();
switch (VA.getLocInfo()) {
default:
break;
case CCValAssign::SExt:
ExtType = ISD::SEXTLOAD;
MemVT = VA.getLocVT();
break;
case CCValAssign::ZExt:
ExtType = ISD::ZEXTLOAD;
MemVT = VA.getLocVT();
break;
case CCValAssign::AExt:
ExtType = ISD::EXTLOAD;
MemVT = VA.getLocVT();
break;
}
ArgValue = DAG.getExtLoad(ExtType, DL, VA.getValVT(), Chain, FIN,
MachinePointerInfo::getFixedStack(FI),
VA.getLocVT(),
false, false, false, 0);
MemVT, false, false, false, 0);
InVals.push_back(ArgValue);
}

8
llvm/test/CodeGen/AArch64/arm64-aapcs.ll
View File

@ -101,3 +101,11 @@ define fp128 @test_fp128([8 x float] %arg0, fp128 %arg1) {
; CHECK: ldr {{q[0-9]+}}, [sp]
ret fp128 %arg1
}
; Check if VPR can be correctly pass by stack.
define <2 x double> @test_vreg_stack([8 x <2 x double>], <2 x double> %varg_stack) {
entry:
; CHECK-LABEL: test_vreg_stack:
; CHECK: ldr {{q[0-9]+}}, [sp]
ret <2 x double> %varg_stack;
}