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Fix crash with varargs function with no named parameters. 

llvm-svn: 136623
This commit is contained in:
Richard Osborne 2011-08-01 16:45:59 +00:00
parent 789ee677d9
commit 0cc000ef29
2 changed files with 19 additions and 2 deletions
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4
llvm/lib/Target/XCore/XCoreISelLowering.cpp
View File

@ -1148,10 +1148,10 @@ XCoreTargetLowering::LowerCCCArguments(SDValue Chain,
int offset = 0;
// Save remaining registers, storing higher register numbers at a higher
// address
for (unsigned i = array_lengthof(ArgRegs) - 1; i >= FirstVAReg; --i) {
for (int i = array_lengthof(ArgRegs) - 1; i >= (int)FirstVAReg; --i) {
// Create a stack slot
int FI = MFI->CreateFixedObject(4, offset, true);
if (i == FirstVAReg) {
if (i == (int)FirstVAReg) {
XFI->setVarArgsFrameIndex(FI);
}
offset -= StackSlotSize;

17
llvm/test/CodeGen/XCore/2011-08-01-VarargsBug.ll Normal file
View File

@ -0,0 +1,17 @@
; RUN: llc < %s -march=xcore | FileCheck %s
define void @_Z1fz(...) {
entry:
; CHECK: _Z1fz:
; CHECK: extsp 3
; CHECK: stw r[[REG:[0-3]{1,1}]]
; CHECK: , sp{{\[}}[[REG]]{{\]}}
; CHECK: stw r[[REG:[0-3]{1,1}]]
; CHECK: , sp{{\[}}[[REG]]{{\]}}
; CHECK: stw r[[REG:[0-3]{1,1}]]
; CHECK: , sp{{\[}}[[REG]]{{\]}}
; CHECK: stw r[[REG:[0-3]{1,1}]]
; CHECK: , sp{{\[}}[[REG]]{{\]}}
; CHECK: ldaw sp, sp[3]
; CHECK: retsp 0
ret void
}