adjacent uses of a dead basic block from the same user. This fixes PR5596.

llvm-svn: 89658

blockaddress users. This fixes PR5569.

llvm-svn: 89483

tracked down by Stephan Reiter!

llvm-svn: 86726

llvm-svn: 86133

resizes in IPSCCP.  This fixes PR5394.

llvm-svn: 86036

more aggressive an correct.  This survives building llvm in 64-bit
mode with optimizations and the built llvm passes make check.

llvm-svn: 85973

llvm-svn: 85937

functions that don't have local linkage.  Basically, we need to be more
careful about propagating argument information to functions whose results
we aren't tracking.  This fixes a miscompilation of 
LLVMCConfigurationEmitter.cpp when built with an llvm-gcc that has ipsccp
enabled.

llvm-svn: 85923

to follow.

llvm-svn: 85903

llvm-svn: 85858

std::map to DenseMap, exposed on release llvm-gcc bootstrap.

llvm-svn: 85840

llvm-svn: 85818

disable it until I can fix it.

llvm-svn: 85810

function to calls of that function, regardless of whether it has local
linkage or has its address taken.  Not escaping should only affect 
whether we make an aggressive assumption about the arguments to a 
function, not whether we can track the result of it.

llvm-svn: 85795

llvm-svn: 85793

a shared place instead of duplicating it 4 times.

llvm-svn: 85792

"multiple return values" but not "first class aggregates"

llvm-svn: 85791

llvm-svn: 85790

instead of reinventing SCCP-specific logic.  This gives us
new powers.

llvm-svn: 85789

a DenseMap.  Doing this required being aware of subtle iterator
invalidation issues, but it provides a big speedup.  In a 
release-asserts build, this sped up optimizing 403.gcc from
1.34s -> 0.79s (IPSCCP) and 1.11s -> 0.44s (SCCP).

This commit also conflates in a bunch of general cleanups, sorry.

llvm-svn: 85788

an assertion on the buildbot.

llvm-svn: 85784

simplify some code.

llvm-svn: 85783

llvm-svn: 85780

llvm-svn: 85778

llvm-svn: 85777

function, eliminate temporary (and pointless) smallvector.

llvm-svn: 85776

llvm-svn: 85775

llvm-svn: 85774

llvm-svn: 85773

in a way that should prevent ip constprop.  This allows clang/test/CodeGen/indirect-goto.c
to pass with the new indirect goto lowering.

llvm-svn: 85709

crash on any clang tests.

llvm-svn: 85465

llvm-svn: 85286

llvm-svn: 85181

Remove LowerAllocations pass.
Update some more passes to treate free calls just like they were treating FreeInst.

llvm-svn: 85176

Update all analysis passes and transforms to treat free calls just like FreeInst.
Remove RaiseAllocations and all its tests since FreeInst no longer needs to be raised.

llvm-svn: 84987

Remove AllocationInst.  Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary.

llvm-svn: 84969

when the invoke had multiple return values: it set the lattice value only on the
extractvalue.
This caused the invoke's lattice value to remain the default (undefined), and
later propagated to extractvalue's operand, which incorrectly introduces
undefined behavior.

llvm-svn: 84637

ConstantFoldLoadThroughGEPConstantExpr.

llvm-svn: 83311

the new predicates I added) instead of going through a context and doing a
pointer comparison.  Besides being cheaper, this allows a smart compiler
to turn the if sequence into a switch.

llvm-svn: 83297

malloc isn't needed.

llvm-svn: 82932