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Emit proper lowering of load from arg stack slot

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75986 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2009-07-16 14:08:42 +00:00
parent c772c4408e
commit 980d5503c3
2 changed files with 25 additions and 10 deletions
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16
lib/Target/SystemZ/SystemZISelLowering.cpp
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@ -186,20 +186,16 @@ SDValue SystemZTargetLowering::LowerCCCArguments(SDValue Op,
} else {
// Sanity check
assert(VA.isMemLoc());
// Load the argument to a virtual register
unsigned ObjSize = VA.getLocVT().getSizeInBits()/8;
if (ObjSize > 8) {
cerr << "LowerFORMAL_ARGUMENTS Unhandled argument type: "
<< VA.getLocVT().getSimpleVT()
<< "\n";
}
// Create the nodes corresponding to a load from this parameter slot.
// Create the frame index object for this incoming parameter...
int FI = MFI->CreateFixedObject(ObjSize, VA.getLocMemOffset());
int FI = MFI->CreateFixedObject(VA.getValVT().getSizeInBits()/8,
VA.getLocMemOffset());
// Create the SelectionDAG nodes corresponding to a load
//from this parameter
SDValue FIN = DAG.getFrameIndex(FI, MVT::i64);
ArgValues.push_back(DAG.getLoad(VA.getLocVT(), dl, Root, FIN,
SDValue FIN = DAG.getFrameIndex(FI, getPointerTy());
ArgValues.push_back(DAG.getLoad(VA.getValVT(), dl, Root, FIN,
PseudoSourceValue::getFixedStack(FI), 0));
}
}

19
test/CodeGen/SystemZ/2009-06-05-InvalidArgLoad.ll Normal file
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@ -0,0 +1,19 @@
; RUN: llvm-as < %s | llc
target datalayout = "E-p:64:64:64-i1:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128"
target triple = "s390x-ibm-linux"
%struct.re_pattern_buffer = type <{ i8*, i64, i64, i64, i8*, i8*, i64, i8, i8, i8, i8, i8, i8, i8, i8 }>
%struct.re_registers = type <{ i32, i8, i8, i8, i8, i32*, i32* }>
define i32 @xre_search_2(%struct.re_pattern_buffer* nocapture %bufp, i8* %string1, i32 %size1, i8* %string2, i32 %size2, i32 %startpos, i32 %range, %struct.re_registers* %regs, i32 %stop) nounwind {
entry:
%cmp17.i = icmp slt i32 undef, %startpos ; <i1> [#uses=1]
%or.cond.i = or i1 undef, %cmp17.i ; <i1> [#uses=1]
br i1 %or.cond.i, label %byte_re_search_2.exit, label %if.then20.i
if.then20.i: ; preds = %entry
ret i32 -2
byte_re_search_2.exit: ; preds = %entry
ret i32 -1
}