because it could create such things. This fixes a MingW buildbot test failure.

llvm-svn: 110279

llvm-svn: 110277

uses.

llvm-svn: 110274

to return Ref if the left callsite only reads memory read or written
by the right callsite; fix BasicAliasAnalysis to implement this.

Add AliasAnalysisEvaluator support for testing the two-callsite
form of getModRefInfo.

llvm-svn: 110270

llvm-svn: 110269

llvm-svn: 110268

llvm-svn: 110267

This helps avoid silly code:

    %R0<def = LOAD <fi#5>
    STORE <fi#5>, %R0<kill>

llvm-svn: 110266

llvm-svn: 110259

simplify the call frame pseudo instructions. In that situation, the
calculations for estimating the stack size will be way off, leading to
not having an emergency spill slot when we need one. It should be possible
to be more precise about tracking the adjustment values, but not really
necessary for correctness. Upcoming cleanups for PEI in general will
render that moot.

llvm-svn: 110258

We are now at a point where we can split around simple single-entry, single-exit
loops, although still with some bugs.

llvm-svn: 110257

llvm-svn: 110256

llvm-svn: 110255

llvm-svn: 110254

llvm-svn: 110249

llvm-svn: 110248

See PR5201. There is no way to know if direct calls will be within the allowed
range for BL. Hence emit all calls as indirect when in JIT mode.
Without this long-running applications will fail to JIT on PowerPC with a
relocation failure.

llvm-svn: 110246

llvm-svn: 110244

using wider types than are necessary.

llvm-svn: 110241

be triggered by valid, if dubious, IR.

llvm-svn: 110240

llvm-svn: 110238

While spilling live registers at the end of block check whether they are used by DBG_VALUE machine instructions or not. If a spilled register is used by DBG_VALUE machine instruction then insert a new DBG_VALUE machine instruction to encode variable's new location on stack.

llvm-svn: 110235

llvm-svn: 110234

Experiments show that we can safely increase our unrolling threshold without unduly impacting code size, particularly
since unrolling is not enabled at -Os.

llvm-svn: 110233

llvm-svn: 110231

seem to be working correctly.  No functional change.

llvm-svn: 110226

llvm-svn: 110224

llvm-svn: 110223

and add comments about major implemented features.

llvm-svn: 110215

llvm-svn: 110211

alone, rather than just an exit code.

llvm-svn: 110208

llvm-svn: 110207

llvm-svn: 110206

llvm-svn: 110205

llvm-svn: 110204

llvm-svn: 110203

llvm-svn: 110202

llvm-svn: 110201

llvm-svn: 110200

llvm-svn: 110199