bb4c4b59a4
Fix a test with malformed IR. Not sure why this didn't fail before.
...
llvm-svn: 109422
2010-07-26 18:44:56 +00:00
cd83870faf
Fix SCEVExpander::visitAddRecExpr so that it remembers the induction variable
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it inserted rather than using LoopInfo::getCanonicalInductionVariable to
rediscover it, since that doesn't work on non-canonical loops. This fixes
infinite recurrsion on such loops; PR7562.
llvm-svn: 109419
2010-07-26 18:28:14 +00:00
b0961f2443
Avoid depending on LCSSA implicitly pulling in LoopSimplify.
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llvm-svn: 109410
2010-07-26 18:00:43 +00:00
3ccd81864f
Testcase for r108687.
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llvm-svn: 108689
2010-07-19 08:14:26 +00:00
7d2818b073
Another attempt at getting the clang self-host to like my instcombine patch.
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llvm-svn: 108614
2010-07-17 06:56:35 +00:00
375efe3157
Arrays and vectors with different numbers of elements are not equivalent.
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llvm-svn: 108517
2010-07-16 06:31:12 +00:00
3d84c9c793
LoopSimplify does not update domfrontier correctly.
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This fixes PR7649.
llvm-svn: 108513
2010-07-16 05:59:45 +00:00
15a81cddb4
Also revert 108422, it's causing some test failures.
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Working on testcases for Owen.
llvm-svn: 108494
2010-07-16 01:36:12 +00:00
c6eefe4d4e
Fix this test.
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llvm-svn: 108491
2010-07-16 01:28:45 +00:00
fbbdfcaea7
Fix the order that SCEVExpander considers add operands in so that
...
it doesn't miss an opportunity to form a GEP, regardless of the
relative loop depths of the operands. This fixes rdar://8197217.
llvm-svn: 108475
2010-07-15 23:38:13 +00:00
7151dfd48a
Reapply r108378, with bugfixes, testcase, and improved comment formatting.
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This now passes LIT, nighty test, and llvm-gcc bootstrap on my machine.
llvm-svn: 108422
2010-07-15 15:00:23 +00:00
19eff2a9f6
Fix PR7647, handling the case when 'To' ends up being
...
mutated by recursive simplification. This also enhances
ReplaceAndSimplifyAllUses to actually do a real RAUW
at the end of it, which updates any value handles
pointing to "From" to start pointing to "To". This
seems useful for debug info and random other VH users.
llvm-svn: 108415
2010-07-15 06:36:08 +00:00
ec0e7b1643
revert r108320, I see the failures now...
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llvm-svn: 108322
2010-07-14 06:16:35 +00:00
658680b2f5
reapply benjamin's instcombine patch, I don't see anything wrong with it and can't repro any problems with a manual self-host.
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llvm-svn: 108320
2010-07-14 05:59:13 +00:00
f88a284579
Handle the case of a tail recursion in which the tail call is followed
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by a return that returns a constant, while elsewhere in the function
another return instruction returns a different constant. This is a
special case of accumulator recursion, so just generalize the existing
logic a bit.
llvm-svn: 108241
2010-07-13 15:41:41 +00:00
8f36402ac2
Nope, still breaks the release selfhost bots :(
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llvm-svn: 108153
2010-07-12 16:38:48 +00:00
07b695e052
Reapply the "or" half of r108136, which seems to be less problematic.
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llvm-svn: 108152
2010-07-12 16:15:48 +00:00
c719e8ae9e
Revert r108141 again, sigh.
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llvm-svn: 108148
2010-07-12 14:42:04 +00:00
f578c36035
Reapply 108136 with an ugly pasto fixed.
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llvm-svn: 108141
2010-07-12 13:44:00 +00:00
9675e759cf
Revert r108136 until I figure out why it broke selfhost.
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llvm-svn: 108139
2010-07-12 12:35:49 +00:00
35473faa50
instcombine: fold (x & y) | (~x & z) and (x & y) ^ (~x & z) into ((y ^ z) & x) ^ z which is one instruction shorter. (PR6773)
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before:
%and = and i32 %y, %x
%neg = xor i32 %x, -1
%and4 = and i32 %z, %neg
%xor = xor i32 %and4, %and
after:
%xor1 = xor i32 %z, %y
%and2 = and i32 %xor1, %x
%xor = xor i32 %and2, %z
llvm-svn: 108136
2010-07-12 11:54:45 +00:00
25eea4db66
fix PR7311 by avoiding breaking casts when a bitcast from scalar->vector
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is involved.
llvm-svn: 108117
2010-07-12 01:19:22 +00:00
bbc25ff5cc
if jump threading is able to infer interesting values on both
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the LHS and RHS of an and/or instruction, don't multiply add
known predecessor values. This fixes the crash on testcase
from PR7498
llvm-svn: 108114
2010-07-12 00:47:34 +00:00
fd4a09fc0a
fix PR7429, a crash turning a load from a string into a float.
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llvm-svn: 108113
2010-07-12 00:22:51 +00:00
f8feba368c
convert to filechecconvert to filecheckk
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llvm-svn: 108112
2010-07-12 00:21:10 +00:00
9338b0a1e2
merge two tests.
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llvm-svn: 108111
2010-07-12 00:19:47 +00:00
2321e6a4d4
Teach instcombine to transform
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(X >s -1) ? C1 : C2 and (X <s 0) ? C2 : C1
into ((X >>s 31) & (C2 - C1)) + C1, avoiding the conditional.
This optimization could be extended to take non-const C1 and C2 but we better
stay conservative to avoid code size bloat for now.
for
int sel(int n) {
return n >= 0 ? 60 : 100;
}
we now generate
sarl $31, %edi
andl $40, %edi
leal 60(%rdi), %eax
instead of
testl %edi, %edi
movl $60, %ecx
movl $100, %eax
cmovnsl %ecx, %eax
llvm-svn: 107866
2010-07-08 11:39:10 +00:00
efa3c824cc
Fix the second half of PR7437: scalarrepl wasn't preserving
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address spaces when SRoA'ing memcpy's.
llvm-svn: 107846
2010-07-08 00:27:05 +00:00
744c74c444
Prevent test from hanging waiting for input.
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llvm-svn: 107446
2010-07-01 22:57:11 +00:00
2b434e12cd
Debugging infomration is encoded in llvm IR using metadata. This is designed
...
such a way that debug info for symbols preserved even if symbols are
optimized away by the optimizer.
Add new special pass to remove debug info for such symbols.
llvm-svn: 107416
2010-07-01 19:49:20 +00:00
db735cbbab
Remove all debug info related named mdnodes.
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llvm-svn: 107323
2010-06-30 21:29:00 +00:00
ae36b1ed42
Fix ScalarEvolution's tripcount computation for chains of loops
...
where each loop's induction variable's start value is the exit
value of a preceding loop.
llvm-svn: 107224
2010-06-29 23:43:06 +00:00
e697a6f24f
Constant fold x == undef to undef.
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llvm-svn: 107074
2010-06-28 21:30:07 +00:00
93e63a0218
this test is failing nondeterministically and blaming me, just disable
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it for now.
llvm-svn: 106960
2010-06-26 22:08:30 +00:00
c1ecfd86a3
Fix test weirdness.
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llvm-svn: 106959
2010-06-26 22:06:50 +00:00
3bbc52ce3e
Fix some tests that didn't test anything.
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llvm-svn: 106954
2010-06-26 20:05:06 +00:00
7228d98b85
Partial specialization test should not depend on the order of specialization operations or the names assigned to the specialized functions
...
llvm-svn: 106953
2010-06-26 18:47:40 +00:00
3a5cb69cb8
Fix PR7328: when turning a tail recursion into a loop, need to preserve
...
the returned value after the tail call if it differs from other return
values. The optimal thing to do would be to introduce a phi node for
the return value, but for the moment just fix the miscompile.
llvm-svn: 106947
2010-06-26 12:53:31 +00:00
f3aea7aecf
Disable indvars on loops when LoopSimplify form is not available.
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This fixes PR7333.
llvm-svn: 106267
2010-06-18 01:35:11 +00:00
29dda21e96
Remove arm_apcscc from the test files. It is the default and doing this
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matches what llvm-gcc and clang now produce.
llvm-svn: 106221
2010-06-17 15:18:27 +00:00
a20e2dfe86
Make sure that simplify libcalls does not replace a call with one calling
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convention with a new call with a different calling convention.
llvm-svn: 106134
2010-06-16 19:34:01 +00:00
a13bd20396
simplify-libcalls: fold strncmp(x, y, 1) -> memcmp(x, y, 1)
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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
1118860e3a
simplify-libcalls: fold strstr(a, b) == a -> strncmp(a, b, strlen(b)) == 0
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llvm-svn: 106047
2010-06-15 21:34:25 +00:00
5a24a56e1e
Remove the arm_aapcscc marker from the tests. It is the default
...
for the linux targets.
llvm-svn: 106029
2010-06-15 19:04:29 +00:00
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
6e42d53cb3
Test case for r105914.
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llvm-svn: 105915
2010-06-13 16:16:54 +00:00
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\!
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llvm-svn: 105528
2010-06-05 14:50:21 +00:00
36da24b546
Copy location info for current function argument from dbg.declare if respective store instruction does not have any location info.
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llvm-svn: 105490
2010-06-04 22:27:30 +00:00
4c904fa797
Fix PR7272: when inlining through a callsite with byval arguments,
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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
aee2632be3
The memcpy intrinsic only takes i8* for %src and %dst, so cast them to that
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first. Fixes PR7265.
llvm-svn: 105206
2010-05-31 06:16:35 +00:00
Owen Anderson