llvm-svn: 86199

implicit zero-extend.

llvm-svn: 86196

llvm-svn: 86193

problems with name collisions.

llvm-svn: 86189

Added support for renumbering existing index list elements. Removed some junk from the initial numbering code in runOnMachineFunction.

llvm-svn: 86184

on loops having dedicated exits, which LoopSimplify can no longer always
guarantee.

llvm-svn: 86181

llvm-svn: 86180

unsplittable critical edges, which means the introduction of
loops which cannot be transformed to LoopSimplify form. Fix
LoopSimplify to avoid transforming such loops into invalid
code.

llvm-svn: 86176

LoopSimplify form may not be available.

llvm-svn: 86175

Fix bug in aggressive antidep breaking; liveness was not updated correctly for regions that do not have antidep candidates.

llvm-svn: 86172

llvm-svn: 86164

LoopPassManager for it.

llvm-svn: 86163

llvm-svn: 86161

llvm-svn: 86160

a separate helper function.

llvm-svn: 86159

llvm-svn: 86151

llvm-svn: 86149

makes several optimization passes abort in cases where they're currently
silently miscompiling code.

Remove the indirectbr assertion from SplitEdge. Indirectbr is only
a problem for critical edges, and SplitEdge defers to SplitCriticalEdge
to handle those, and SplitCriticalEdge has its own assertion for
indirectbr.

llvm-svn: 86147

llvm-svn: 86146

llvm-svn: 86141

llvm-svn: 86133

llvm-svn: 86132

llvm-svn: 86114

llvm-svn: 86102

Break anti-dependencies using free registers in a round-robin manner to avoid introducing new anti-dependencies.

llvm-svn: 86098

llvm-svn: 86092

This fixes PR5393.

llvm-svn: 86091

llvm-svn: 86085

llvm-svn: 86080

MallocInst-autoupgrade users use non-TargetData-computed allocation sizes.
Optimization uses use TargetData to compute the allocation size.

Now that malloc calls can have constant sizes, update isArrayMallocHelper() to use TargetData to determine the size of the malloced type and the size of malloced arrays.
Extend getMallocType() to support malloc calls that have non-bitcast uses.

Update OptimizeGlobalAddressOfMalloc() to optimize malloc calls that have non-bitcast uses.  The bitcast use of a malloc call has to be treated specially here because the uses of the bitcast need to be replaced and the bitcast needs to be erased (just like the malloc call) for OptimizeGlobalAddressOfMalloc() to work correctly.

Update PerformHeapAllocSRoA() to optimize malloc calls that have non-bitcast uses.  The bitcast use of the malloc is not handled specially here because ReplaceUsesOfMallocWithGlobal replaces through the bitcast use.

Update OptimizeOnceStoredGlobal() to not care about the malloc calls' bitcast use.

Update all globalopt malloc tests to not rely on autoupgraded-MallocInsts, but instead use explicit malloc calls with correct allocation sizes.

llvm-svn: 86077

While calculating original type size for a derived type, handle type variants encoded as DIDerivedType appropriately.
This improves bitfield support.

llvm-svn: 86073

llvm-svn: 86068

Hans Wennborg!

llvm-svn: 86067

aggressive testing of dynamic stack alignment.
Note that this is off by default, and enabled for LLCBETA nightly results.

llvm-svn: 86064

llvm-svn: 86057

saved instructions even if no stack adjustment for those saves is needed.

llvm-svn: 86056

Fix DW_AT_data_member_location for bit-fields. It points to the location of annonymous field that covers respective field.

llvm-svn: 86054

llvm-svn: 86050

Handle empty/tombstone keys for LiveIndex more cleanly. Check for index sanity when constructing index list entries.

llvm-svn: 86049

not reason based on errno if NumRead has a different value.

llvm-svn: 86046