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There is one more patch to finish large frames. Make sure we assert

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on code that has large frames which will not yet compile correctly.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170673 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reed Kotler 2012-12-20 06:57:00 +00:00
parent 82a36e2b59
commit 0fd8313250
2 changed files with 8 additions and 0 deletions
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4
lib/Target/Mips/Mips16RegisterInfo.cpp
View File

@ -146,6 +146,10 @@ void Mips16RegisterInfo::eliminateFI(MachineBasicBlock::iterator II,
DEBUG(errs() << "Offset : " << Offset << "\n" << "<--------->\n");
if (!MI.isDebugValue() && ( ((FrameReg != Mips::SP) && !isInt<16>(Offset)) ||
((FrameReg == Mips::SP) && !isInt<15>(Offset)) )) {
assert(false && "frame offset does not fit in instruction");
}
MI.getOperand(OpNo).ChangeToRegister(FrameReg, false);
MI.getOperand(OpNo + 1).ChangeToImmediate(Offset);

4
lib/Target/Mips/MipsInstrInfo.td
View File

@ -298,6 +298,10 @@ def HI16 : SDNodeXForm<imm, [{
// e.g. addi, andi
def immSExt16 : PatLeaf<(imm), [{ return isInt<16>(N->getSExtValue()); }]>;
// Node immediate fits as 15-bit sign extended on target immediate.
// e.g. addi, andi
def immSExt15 : PatLeaf<(imm), [{ return isInt<15>(N->getSExtValue()); }]>;
// Node immediate fits as 16-bit zero extended on target immediate.
// The LO16 param means that only the lower 16 bits of the node
// immediate are caught.