ddb265b905
Now that ScalarEvolution::print writes to the correct stream, there is
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no need to redirect stderr into stdout.
llvm-svn: 47009
2008-02-12 15:12:40 +00:00
995624f44d
Change negative grep into positive one in my yesterday's testcase.
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llvm-svn: 47008
2008-02-12 15:10:35 +00:00
1d2c27b23e
Fix PR2002. Suppose n is the initial value for the induction
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variable (with step 1) and m is its final value. Then, the correct trip
count is SMAX(m,n)-n. Previously, we used SMAX(0,m-n), but m-n may
overflow and can't in general be interpreted as signed.
Patch by Nick Lewycky.
llvm-svn: 47007
2008-02-12 15:09:36 +00:00
3716d023ab
Test case for annotate builtin.
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llvm-svn: 46999
2008-02-12 07:46:33 +00:00
b21301fbe7
Fix some test cases.
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llvm-svn: 46998
2008-02-12 07:22:46 +00:00
adae053b53
If the LHS of the comparison is a loop-invariant we also want to move it
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to the RHS. This simple change allows to compute loop iteration count
for loops with condition similar to the one in the testcase (which seems
to be quite common).
llvm-svn: 46959
2008-02-11 18:37:34 +00:00
d2d9764cc8
Fix PR1798 - an error in the evaluation of SCEVAddRecExpr at an
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arbitrary iteration.
The patch:
1) changes SCEVSDivExpr into SCEVUDivExpr,
2) replaces PartialFact() function with BinomialCoefficient(); the
computations (essentially, the division) in BinomialCoefficient() are
performed with the apprioprate bitwidth necessary to avoid overflow;
unsigned division is used instead of the signed one.
Computations in BinomialCoefficient() require support from the code
generator for APInts. Currently, we use a hack rounding up the
neccessary bitwidth to the nearest power of 2. The hack is easy to turn
off in future.
One remaining issue: we assume the divisor of the binomial coefficient
formula can be computed accurately using 16 bits. It means we can handle
AddRecs of length up to 9. In future, we should use APInts to evaluate
the divisor.
Thanks to Nicholas for cooperation!
llvm-svn: 46955
2008-02-11 11:03:14 +00:00
ad4d57a2f5
Determine whether a spill kills the register it's spilling before insertion rather than trying to undo the kill marker afterwards.
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llvm-svn: 46953
2008-02-11 08:30:52 +00:00
3a4be0fdef
Rename MRegisterInfo to TargetRegisterInfo.
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llvm-svn: 46930
2008-02-10 18:45:23 +00:00
43a2ed8611
Alignment of struct containing vectors depends on
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whether SSE is present, on Darwin anyway. Make it
explicit.
llvm-svn: 46909
2008-02-09 19:04:25 +00:00
26f75e2576
Fix PR 1995.
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llvm-svn: 46898
2008-02-08 22:49:13 +00:00
3b3286d4bc
It's not always safe to fold movsd into xorpd, etc. Check the alignment of the load address first to make sure it's 16 byte aligned.
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llvm-svn: 46893
2008-02-08 21:20:40 +00:00
8d59dd119b
Added missing entries in X86 load / store folding tables.
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llvm-svn: 46866
2008-02-08 00:12:56 +00:00
a20a773654
Fix a x86-64 codegen deficiency. Allow gv + offset when using rip addressing mode.
...
Before:
_main:
subq $8, %rsp
leaq _X(%rip), %rax
movsd 8(%rax), %xmm1
movss _X(%rip), %xmm0
call _t
xorl %ecx, %ecx
movl %ecx, %eax
addq $8, %rsp
ret
Now:
_main:
subq $8, %rsp
movsd _X+8(%rip), %xmm1
movss _X(%rip), %xmm0
call _t
xorl %ecx, %ecx
movl %ecx, %eax
addq $8, %rsp
ret
Notice there is another idiotic codegen issue that needs to be fixed asap:
xorl %ecx, %ecx
movl %ecx, %eax
llvm-svn: 46850
2008-02-07 08:53:49 +00:00
127b41500c
It's PR1925, not PR1609.
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llvm-svn: 46825
2008-02-06 22:07:17 +00:00
c676a0329c
Temporarily reverting:
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http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20080128/057882.html
This is causing a miscompilation on PPC G5 and just now seeing it on iMac x86-64.
llvm-svn: 46822
2008-02-06 20:03:07 +00:00
1ec748c784
Fix a number of local register allocator issues: PR1609.
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llvm-svn: 46821
2008-02-06 19:16:53 +00:00
87fbd66f9f
Fix PR1975: dag isel emitter produces patterns that isel wrong flag result.
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llvm-svn: 46776
2008-02-05 22:50:29 +00:00
8d78b0597b
If a vr is already marked alive in a bb, then it has PHI uses that are visited earlier, then it is not killed in the def block (i.e. not dead).
...
llvm-svn: 46763
2008-02-05 20:04:18 +00:00
682a7dc653
Fix a bug compiling PR1978 (perhaps not the only one though) which
...
was incorrectly simplifying "x == (gep x, 1, i)" into false, even
though i could be negative. As it turns out, all the code to
handle this already existed, we just need to disable the incorrect
optimization case and let the general case handle it.
llvm-svn: 46739
2008-02-05 04:45:32 +00:00
baba47f1ea
This should also work on x86 now.
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llvm-svn: 46730
2008-02-05 00:25:31 +00:00
3342d4083f
Crashes LegalizeTypes with "Do not know how to
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expand the result of this operator!" (node: ctlz).
llvm-svn: 46713
2008-02-04 18:07:02 +00:00
ff1a444879
Crashes LegalizeTypes with "Do not know how to split
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this operator's operand" (node: extract_subvector).
llvm-svn: 46712
2008-02-04 18:05:42 +00:00
69f90ccb17
remove target triple to make this test more "generic"
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llvm-svn: 46711
2008-02-04 18:02:37 +00:00
331cd706f5
Crashed the new type legalizer. Not likely to catch
...
any bugs in the future since to get the crash you also
need hacked in fake libcall support (which creates odd
but legal trees), but since adding it doesn't hurt...
Thanks to Chris for this ultimately reduced version.
llvm-svn: 46706
2008-02-04 09:40:27 +00:00
1a78ae76e4
Make this test more aggressive, to cover recent improvements.
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llvm-svn: 46695
2008-02-04 04:55:24 +00:00
c4a7c41869
Allow GVN to hack on memcpy's, making them open to further optimization.
...
llvm-svn: 46693
2008-02-04 02:59:58 +00:00
56178bc6ad
Tag this test with the PR reference.
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llvm-svn: 46688
2008-02-03 16:35:19 +00:00
3b59214320
There are some cases where icmp(add) can be folded into a new icmp. Handle them.
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llvm-svn: 46687
2008-02-03 16:33:09 +00:00
931e121ad1
Fixing a bug creating floating point constants of type other
...
than double through the C bindings. Thanks to Tomas Lindquist
Olsen for reporting it.
llvm-svn: 46656
2008-02-02 01:07:50 +00:00
192c07b727
CBackend: Implement unaligned load/store.
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llvm-svn: 46646
2008-02-01 21:25:59 +00:00
9aa789fda3
Don't drop function/call return attributes like 'nounwind'.
...
llvm-svn: 46645
2008-02-01 20:37:16 +00:00
56d4903db5
Accept getelementptr starting at GV with all 0 indices as a
...
legitimate way of representing global variable GV in debug info.
llvm-svn: 46565
2008-01-30 19:00:21 +00:00
cee9d51be9
Pointers change size depending upon the target. Remove them to make the test more stable.
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llvm-svn: 46548
2008-01-30 05:15:15 +00:00
4e4b116750
Make DSE much more aggressive by performing DCE earlier. Update a testcase to reflect this increased aggressiveness.
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llvm-svn: 46542
2008-01-30 01:24:47 +00:00
b9e5b8fb9e
Fix a bug where scalarrepl would discard offset if type would match.
...
In practice this can only happen on code with already undefined behavior,
but this is still a good thing to handle correctly.
llvm-svn: 46539
2008-01-30 00:39:15 +00:00
a13e5146d4
Update this test case.
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llvm-svn: 46526
2008-01-29 19:30:05 +00:00
ade0abb498
Don't let globalopt hack on volatile loads or stores.
...
llvm-svn: 46523
2008-01-29 19:01:37 +00:00
17819d971e
eliminate additions of 0.0 when they are obviously dead. This has to be careful to
...
avoid turning -0.0 + 0.0 -> -0.0 which is incorrect.
llvm-svn: 46499
2008-01-29 06:52:45 +00:00
95bf1d4d7b
Add a testcase for eliminating memcpy's at the end of functions. Forgot to commit this with my last commit.
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llvm-svn: 46497
2008-01-29 06:40:32 +00:00
f4e5e556fd
Add target triples to these so they don't fail on linux.
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llvm-svn: 46496
2008-01-29 06:26:07 +00:00
1e7ec74ad3
This would be better done as an executable test.
...
llvm-svn: 46493
2008-01-29 06:04:54 +00:00
aaaeee2ac0
After recent changes we fail to optimize this test
...
sufficiently to have it pass. I'm removing it from
the testsuite and adding it to PR452 instead.
llvm-svn: 46492
2008-01-29 05:57:23 +00:00
67fa0521b6
Filter loops that subtract induction variables.
...
These loops are not yet handled.
Fix PR 1912.
llvm-svn: 46484
2008-01-29 02:20:41 +00:00
ceae3bbf4d
Overhaul Cell SPU's addressing mode internals so that there are now
...
only two addressing mode nodes, SPUaform and SPUindirect (vice the
three previous ones, SPUaform, SPUdform and SPUxform). This improves
code somewhat because we now avoid using reg+reg addressing when
it can be avoided. It also simplifies the address selection logic,
which was the main point for doing this.
Also, for various global variables that would be loaded using SPU's
A-form addressing, prefer D-form offs[reg] addressing, keeping the
base in a register if the variable is used more than once.
llvm-svn: 46483
2008-01-29 02:16:57 +00:00
7bcf58f8a4
New test.
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llvm-svn: 46479
2008-01-29 01:10:04 +00:00
f0b7d4993f
Add test to make sure that #pragma mark/error doesn't error if there are
...
unbalanced quotes.
llvm-svn: 46476
2008-01-29 00:41:29 +00:00
2a80ba8c7c
Pure/const functions with ByVal parameters cannot
...
be marked readonly either.
llvm-svn: 46456
2008-01-28 19:25:47 +00:00
a116071547
this test is now compiled into the right thing.
...
llvm-svn: 46454
2008-01-28 17:38:46 +00:00
54af54fe08
Make this more likely to be passed byval.
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llvm-svn: 46451
2008-01-28 10:35:11 +00:00
Wojciech Matyjewicz