Dan Gohman
dd41bba517
Use A.append(...) instead of A.insert(A.end(), ...) when A is a
...
SmallVector, and other SmallVector simplifications.
llvm-svn: 106452
2010-06-21 19:47:52 +00:00
Dan Gohman
32655906e4
Add a TODO comment.
...
llvm-svn: 106397
2010-06-19 21:30:18 +00:00
Dan Gohman
51d00092b6
Include the use kind along with the expression in the key of the
...
use sharing map. The reconcileNewOffset logic already forces a
separate use if the kinds differ, so incorporating the kind in the
key means we can track more sharing opportunities.
More sharing means fewer total uses to track, which means smaller
problem sizes, which means the conservative throttles don't kick
in as often.
llvm-svn: 106396
2010-06-19 21:29:59 +00:00
Dan Gohman
297fb8b9fc
Don't include things in anonymous namespaces that don't need it.
...
llvm-svn: 106395
2010-06-19 21:21:39 +00:00
Dan Gohman
f3aea7aecf
Disable indvars on loops when LoopSimplify form is not available.
...
This fixes PR7333.
llvm-svn: 106267
2010-06-18 01:35:11 +00:00
Jim Grosbach
e94f1ded24
remove trailing whitespace
...
llvm-svn: 106164
2010-06-16 22:41:09 +00:00
Rafael Espindola
a20e2dfe86
Make sure that simplify libcalls does not replace a call with one calling
...
convention with a new call with a different calling convention.
llvm-svn: 106134
2010-06-16 19:34:01 +00:00
Benjamin Kramer
a13bd20396
simplify-libcalls: fold strncmp(x, y, 1) -> memcmp(x, y, 1)
...
The memcmp will be optimized further and even the pathological case
'strstr(x, "x") == x' generates optimal code now.
llvm-svn: 106097
2010-06-16 10:30:29 +00:00
Benjamin Kramer
1118860e3a
simplify-libcalls: fold strstr(a, b) == a -> strncmp(a, b, strlen(b)) == 0
...
llvm-svn: 106047
2010-06-15 21:34:25 +00:00
Chris Lattner
329ea064ed
jump threading can't split a critical edge from an indirectbr. This
...
fixes PR7356.
llvm-svn: 105950
2010-06-14 19:45:43 +00:00
Benjamin Kramer
b82de426de
SimplifyCFG: don't turn volatile stores to null/undef into unreachable. Fixes PR7369.
...
llvm-svn: 105914
2010-06-13 14:35:54 +00:00
Kenneth Uildriks
9b21208bfb
Pulled CodeMetrics out of InlineCost.h and made it a bit more general, so it can be reused from PartialSpecializationCost
...
llvm-svn: 105725
2010-06-09 15:11:37 +00:00
Dan Gohman
fb8ed43349
Make bugpoint dead-argument-hacking actually work, and actually test it.
...
llvm-svn: 105551
2010-06-07 20:20:33 +00:00
Kenneth Uildriks
1850444000
Partial specialization was not checking the callsite to make sure it was using the same constants as the specialization, leading to calls to the wrong specialization. Patch by Takumi Nakamura\!
...
llvm-svn: 105528
2010-06-05 14:50:21 +00:00
Dan Gohman
67b4403101
Don't track users of undef values; they aren't interesting for
...
register pressure.
llvm-svn: 105501
2010-06-04 23:16:05 +00:00
Devang Patel
36da24b546
Copy location info for current function argument from dbg.declare if respective store instruction does not have any location info.
...
llvm-svn: 105490
2010-06-04 22:27:30 +00:00
Jim Grosbach
5ba76b94f8
Remove unused code
...
llvm-svn: 105293
2010-06-01 21:56:30 +00:00
Jim Grosbach
0e20dc5cd6
fix think-o
...
llvm-svn: 105291
2010-06-01 21:35:50 +00:00
Jim Grosbach
b69c68742a
Simplify things a bit more. Fix prototype to use SmallVectorImpl and
...
change a few SmallVectors to vanilla C arrays.
llvm-svn: 105289
2010-06-01 21:06:46 +00:00
Jim Grosbach
a37af16221
mirror of r105280 changes for LowerInvoke, which uses the same basic logic here
...
llvm-svn: 105281
2010-06-01 18:04:56 +00:00
Jim Grosbach
7352167560
Use SmallVector instead of std::vector.
...
llvm-svn: 105279
2010-06-01 17:56:41 +00:00
Duncan Sands
4c904fa797
Fix PR7272: when inlining through a callsite with byval arguments,
...
the newly created allocas may be used by inlined calls, so these
need to have their tail call flags cleared. Fixes PR7272.
llvm-svn: 105255
2010-05-31 21:00:26 +00:00
Benjamin Kramer
5ac57e3440
Avoid swap when a copy suffices.
...
llvm-svn: 105220
2010-05-31 12:50:41 +00:00
Nick Lewycky
aee2632be3
The memcpy intrinsic only takes i8* for %src and %dst, so cast them to that
...
first. Fixes PR7265.
llvm-svn: 105206
2010-05-31 06:16:35 +00:00
Dan Gohman
826bdf8c10
Move FindAvailableLoadedValue isSafeToLoadUnconditionally out of
...
lib/Transforms/Utils and into lib/Analysis so that Analysis passes
can use them.
llvm-svn: 104949
2010-05-28 16:19:17 +00:00
Dan Gohman
df5d7dcef1
Teach instcombine to promote alloca array sizes.
...
llvm-svn: 104945
2010-05-28 15:09:00 +00:00
Dan Gohman
05a6555acb
Fix instcombine's handling of alloca to accept non-i32 types.
...
llvm-svn: 104935
2010-05-28 04:33:04 +00:00
Devang Patel
3e0fbafab2
Fix typo.
...
llvm-svn: 104914
2010-05-28 01:29:50 +00:00
Devang Patel
e2099e8088
Fix typo.
...
llvm-svn: 104913
2010-05-28 01:17:51 +00:00
Devang Patel
7a9dedf0ab
Do not drop location info for inlined function args.
...
llvm-svn: 104884
2010-05-27 20:25:04 +00:00
Duncan Sands
f162eace49
Teach instCombine to remove malloc+free if malloc's only uses are comparisons
...
to null. Patch by Matti Niemenmaa.
llvm-svn: 104871
2010-05-27 19:09:06 +00:00
Benjamin Kramer
6877119ef3
Kill unneeded SExt.
...
llvm-svn: 104692
2010-05-26 09:45:04 +00:00
Benjamin Kramer
9439084cea
Properly promote operands when optimizing a single-character memcmp.
...
llvm-svn: 104648
2010-05-25 22:53:43 +00:00
Dan Gohman
a4abd035ea
Fix a missing newline in debug output.
...
llvm-svn: 104644
2010-05-25 21:50:35 +00:00
Dan Gohman
9b48b856ea
DominatorTree.getNode can return null for unreachable blocks.
...
llvm-svn: 104290
2010-05-20 22:46:54 +00:00
Dan Gohman
86110fa2bb
Minor code cleanups.
...
llvm-svn: 104287
2010-05-20 22:25:20 +00:00
Dan Gohman
6295f2ebb8
Make Solve check its own post-condition, to reduce clutter in the
...
top-level LSRInstance logic.
llvm-svn: 104278
2010-05-20 20:59:23 +00:00
Dan Gohman
a4ca28a3ae
Add comments.
...
llvm-svn: 104276
2010-05-20 20:52:00 +00:00
Dan Gohman
927bcaadda
More code cleanups. Use iterators instead of indices when indices
...
aren't needed.
llvm-svn: 104273
2010-05-20 20:33:18 +00:00
Dan Gohman
4c4043cf34
Fix OptimizeShadowIV to set Changed. Change OptimizeLoopTermCond to set
...
Changed directly instead of using a return value.
Rename FilterOutUndesirableDedicatedRegisters's Changed variable to
distinguish it from LSRInstance's Changed member.
llvm-svn: 104269
2010-05-20 20:05:31 +00:00
Dan Gohman
8ec018cedf
Add some comments.
...
llvm-svn: 104268
2010-05-20 20:00:41 +00:00
Dan Gohman
8ce95cc3c5
Simplify this code. Don't do a DomTreeNode lookup for each visited block.
...
llvm-svn: 104267
2010-05-20 20:00:25 +00:00
Dan Gohman
ab5fb7f559
Minor code cleanups.
...
llvm-svn: 104263
2010-05-20 19:44:23 +00:00
Dan Gohman
ee2fea3cd7
When canonicalizing icmp operand order to put the loop invariant
...
operand on the left, the interesting operand is on the right. This
fixes a bug where LSR was failing to recognize ICmpZero uses,
which led it to be unable to reverse the induction variable in the
attached testcase.
Delete test/CodeGen/X86/stack-color-with-reg-2.ll, because its test
is extremely fragile and hard to meaningfully update.
llvm-svn: 104262
2010-05-20 19:26:52 +00:00
Dan Gohman
fdf9874ba7
Set Changed to true when canonicalizing ICmp operand order; even though
...
it isn't a very interesting change, it's a change nonetheless.
llvm-svn: 104260
2010-05-20 19:16:03 +00:00
Devang Patel
e2ff7f3a7d
Strip llvm.dbg.lv also.
...
llvm-svn: 104236
2010-05-20 16:49:22 +00:00
Dan Gohman
981563d0ba
Rename a variable to avoid shadowing.
...
llvm-svn: 104234
2010-05-20 16:41:11 +00:00
Dan Gohman
6b733fc189
Minor code simplification.
...
llvm-svn: 104232
2010-05-20 16:23:28 +00:00
Dan Gohman
80a9608442
Move the code for deleting BaseRegs and LSRUses into helper functions,
...
and fix a bug that valgrind noticed where the code would std::swap an
element with itself.
llvm-svn: 104225
2010-05-20 15:17:54 +00:00
Dan Gohman
20fab456da
Teach LSR how to cope better with unrolled loops on targets where
...
the addressing modes don't make this trivially easy. This allows
it to avoid falling into the less precise heuristics in more
cases.
llvm-svn: 104186
2010-05-19 23:43:12 +00:00