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the darwin9-powerpc buildbot keeps consistently crashing, 

backing out following to get it back to green,
so I can investigate in peace:

svn merge -c -113840  llvm/test/CodeGen/ARM/arm-and-tst-peephole.ll
svn merge -c -113876 -c -113839 llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp

llvm-svn: 113980
This commit is contained in:
Gabor Greif 2010-09-15 16:53:07 +00:00
parent 11f5be3b86
commit 9ae4b271f2
2 changed files with 2 additions and 17 deletions
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16
llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
View File

@ -1352,20 +1352,6 @@ AnalyzeCompare(const MachineInstr *MI, unsigned &SrcReg, int &CmpValue) const {
SrcReg = MI->getOperand(0).getReg();
CmpValue = MI->getOperand(1).getImm();
return true;
case ARM::TSTri: {
if (&*MI->getParent()->begin() == MI)
return false;
const MachineInstr *AND = llvm::prior(MI);
if (AND->getOpcode() != ARM::ANDri)
return false;
if (MI->getOperand(0).getReg() == AND->getOperand(1).getReg() &&
MI->getOperand(1).getImm() == AND->getOperand(2).getImm()) {
SrcReg = AND->getOperand(0).getReg();
CmpValue = 0;
return true;
}
}
break;
}
return false;
@ -1415,8 +1401,6 @@ OptimizeCompareInstr(MachineInstr *CmpInstr, unsigned SrcReg, int CmpValue,
switch (MI->getOpcode()) {
default: break;
case ARM::ADDri:
case ARM::ANDri:
case ARM::t2ANDri:
case ARM::SUBri:
case ARM::t2ADDri:
case ARM::t2SUBri:

3
llvm/test/CodeGen/ARM/arm-and-tst-peephole.ll
View File

@ -17,7 +17,8 @@ tailrecurse: ; preds = %sw.bb, %entry
%tmp2 = load i8** %scevgep5
%0 = ptrtoint i8* %tmp2 to i32
; CHECK: ands r12, r12, #3
; CHECK: and lr, r12, #3
; CHECK-NEXT: tst r12, #3
; CHECK-NEXT: beq LBB0_4
; T2: movs r5, #3