9ef1294210
Add a comment
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Make LSR ignore GEP's that have loop variant base values, as we currently
cannot codegen them
llvm-svn: 22576
2005-08-02 01:32:29 +00:00
564900e5e5
Fix an iterator invalidation problem
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llvm-svn: 22575
2005-08-02 00:41:11 +00:00
e17c5d0e59
ConstantInt::get only works for arguments < 128.
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SimplifyLibCalls probably has to be audited to make sure it does not make
this mistake elsewhere. Also, if this code knows that the type will be
unsigned, obviously one arm of this is dead.
Reid, can you take a look into this further?
llvm-svn: 22566
2005-08-01 16:52:50 +00:00
546fd5944e
Keep tabs and trailing spaces out.
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llvm-svn: 22565
2005-07-30 18:33:25 +00:00
c500991055
Fix VC++ build problems.
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llvm-svn: 22564
2005-07-30 18:22:27 +00:00
17a0e2afea
Ack, typo
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llvm-svn: 22560
2005-07-30 00:21:31 +00:00
e68bcd1946
Commit a new LoopStrengthReduce pass that can use scalar evolutions and
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target data to decide which loop induction variables to strength reduce
and how to do so. This work is mostly by Chris Lattner, with tweaks by
me to get it working on some of MultiSource.
llvm-svn: 22558
2005-07-30 00:15:07 +00:00
2bca4d9b7b
Break SCEVExpander out of IndVarSimplify into its own .h/.cpp file so that
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other passes may use it.
llvm-svn: 22557
2005-07-30 00:12:19 +00:00
5f4ef3c5a8
Eliminate all remaining tabs and trailing spaces.
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llvm-svn: 22523
2005-07-27 06:12:32 +00:00
31d0ac2414
ConvertibleToGEP always returns 0, remove some old crufty code which
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is actually dead because of this!
llvm-svn: 22515
2005-07-26 16:38:28 +00:00
18aa4d8196
Do not let MaskedValueIsZero consider undef to be zero, for reasons
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explained in the comment.
This fixes UnitTests/2003-09-18-BitFieldTest on darwin
llvm-svn: 22483
2005-07-20 18:49:28 +00:00
247aef884c
When transforming &A[i] < &A[j] -> i < j, make sure to perform the comparison
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as a signed compare. This patch may fix PR597, but is correct in any case.
llvm-svn: 22465
2005-07-18 23:07:33 +00:00
4ed40f7c6f
Fix a problem that instcombine would hit when dealing with unreachable code.
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Because the instcombine has to scan the entire function when it starts up
to begin with, we might as well do it in DFO so we can nuke unreachable code.
This fixes: Transforms/InstCombine/2005-07-07-DeadPHILoop.ll
llvm-svn: 22348
2005-07-07 20:40:38 +00:00
937c71f2b3
Fix PR590 and Transforms/Mem2Reg/2005-06-30-ReadBeforeWrite.ll.
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The optimization for locally used allocas was not safe for allocas that
were read before they were written. This change disables that optimization
in that case.
llvm-svn: 22318
2005-06-30 07:29:44 +00:00
810b4f8d55
Doh! Forgot to LLVMify the style.
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llvm-svn: 22312
2005-06-29 15:57:50 +00:00
4642afdcc1
Basic fix for PR#591; don't convert an fprintf() to an fwrite() if there
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is a mismatch in their character type pointers (i.e. fprintf() prints an
array of ubytes while fwrite() takes an array of sbytes).
We can probably do better than this (such as casting the ubyte to an
sbyte).
llvm-svn: 22310
2005-06-29 15:03:18 +00:00
9610c6f287
add a debug type
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llvm-svn: 22277
2005-06-24 16:00:46 +00:00
cf52eb2b99
prevent va_arg from being hoisted from a loop
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llvm-svn: 22265
2005-06-20 13:36:33 +00:00
d4b103107e
prevent DCE of vaarg intrinsics. This should take care of most regressions
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llvm-svn: 22263
2005-06-19 14:41:20 +00:00
9144ec4764
core changes for varargs
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llvm-svn: 22254
2005-06-18 18:34:52 +00:00
a7828baa3c
Fix a problem with the strcmp optimization checking the wrong string and
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not casting to the correct type.
llvm-svn: 22250
2005-06-18 17:46:28 +00:00
4fdd96c4e0
Clean up some uninitialized variables and missing return statements that
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GCC 4.0.0 compiler (sometimes incorrectly) warns about under release build.
llvm-svn: 22249
2005-06-18 17:37:34 +00:00
2ceb6ee576
This is not true: (X != 13 | X < 15) -> X < 15
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It is actually always true. This fixes PR586 and
Transforms/InstCombine/2005-06-16-SetCCOrSetCCMiscompile.ll
llvm-svn: 22236
2005-06-17 03:59:17 +00:00
73bcba5f61
Don't crash when dealing with INTMIN. This fixes PR585 and
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Transforms/InstCombine/2005-06-16-RangeCrash.ll
llvm-svn: 22234
2005-06-17 02:05:55 +00:00
5e735294bf
Don't crash on: X = phi (X, X).
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This fixes PR584 and Transforms/SimplifyCFG/2005-06-16-PHICrash.ll
llvm-svn: 22232
2005-06-17 01:45:53 +00:00
c53cb9d3ff
avoid constructing out of range shift amounts.
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llvm-svn: 22230
2005-06-17 01:29:28 +00:00
89dc4f16f5
Fix PR583 and testcase Transforms/InstCombine/2005-06-15-DivSelectCrash.ll
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llvm-svn: 22227
2005-06-16 04:55:52 +00:00
252a845e30
Fix PR571, removing code that does just the WRONG thing :)
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llvm-svn: 22225
2005-06-16 03:00:08 +00:00
104002bee3
Fix a bug in my previous patch. Do not get the shift amount type (which
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is always ubyte, get the type being shifted). This unbreaks espresso
llvm-svn: 22224
2005-06-16 01:52:07 +00:00
d48b127aea
Fix PR575, patch provided by John Mellor-Crummey. Thanks!
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llvm-svn: 22223
2005-06-15 22:49:30 +00:00
df81539278
Fix PR582. The rewriter can move casts around, which invalidated the
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BB iterator. This fixes Transforms/IndVarsSimplify/2005-06-15-InstMoveCrash.ll
llvm-svn: 22221
2005-06-15 21:29:31 +00:00
50bdfcb045
Do not promote globals only used by main to locals if there are constantexprs
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or other uses hanging off of them.
llvm-svn: 22219
2005-06-15 21:11:48 +00:00
19b57f55aa
Fix PR577 and testcase InstCombine/2005-06-15-ShiftSetCCCrash.ll.
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Do not perform undefined out of range shifts.
llvm-svn: 22217
2005-06-15 20:53:31 +00:00
a299d6f701
Put the hack back in that removes features, causes regressions to fail, but
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allows test programs to succeed. Actual fix for this is forthcoming.
llvm-svn: 22213
2005-06-15 18:25:30 +00:00
6d231e55fa
Unbreak several InstCombine regression checks introduced by a hack to
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fix the bzip2 test. A better hack is needed.
llvm-svn: 22209
2005-06-13 06:41:26 +00:00
1609a541cd
Fix a 64-bit problem, passing (int)0 through ... instead of (void*)0
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llvm-svn: 22206
2005-06-09 03:32:54 +00:00
fbc45f10d0
Fix a problem on 64-bit targets where we passed (int)0 through ... instead of
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(void*)0.
llvm-svn: 22205
2005-06-09 02:59:00 +00:00
ffe65458e7
hack to fix bzip2 (bug 571)
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llvm-svn: 22192
2005-06-04 12:43:56 +00:00
9fbad13dd7
Make the registration hash_map static. No other module needs it. Also,
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document what its for a little better.
llvm-svn: 22164
2005-05-21 01:27:04 +00:00
0b13cdabae
Adjust the file comment to read a little easier.
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llvm-svn: 22163
2005-05-21 00:57:44 +00:00
45bb4afc79
Make sure ... arguments are casted to sbyte* where needed.
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llvm-svn: 22162
2005-05-21 00:39:30 +00:00
895af9ef24
Add a "brief" comment for CastToCStr
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llvm-svn: 22161
2005-05-21 00:23:23 +00:00
f8053cee7c
Fix mismatched type problem that crashed on cases like this:
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sprintf(P, "%s", X);
Where X is not an sbyte*. This fixes the bug JohnMC reported on llvm-bugs.
llvm-svn: 22159
2005-05-20 22:22:25 +00:00
19f9f32a5c
Fix Transforms/SimplifyCFG/switch-simplify-crash.ll
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llvm-svn: 22158
2005-05-20 22:19:54 +00:00
05deb04cb0
teach the inliner about coldcc and noreturn functions
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llvm-svn: 22113
2005-05-18 04:30:33 +00:00
74305a6233
Don't look for __builtin_ffs, we'll never see it from llvm-gcc and there's
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not reason to include it for other front ends.
llvm-svn: 22070
2005-05-15 21:27:34 +00:00
17f7784c5d
Provide this optimization as well:
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ffs(x) -> (x == 0 ? 0 : 1+llvm.cttz(x))
llvm-svn: 22068
2005-05-15 21:19:45 +00:00
3de98ee643
Duh .. you actually have to #include Config/config.h before you can test
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for one of the values that it defines!
llvm-svn: 22058
2005-05-15 17:20:47 +00:00
b195fcd5ef
Changes for ffs lib call simplification:
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* Check for availability of ffsll call in configure script
* Support ffs, ffsl, and ffsll conversion to constant value if the argument
is constant.
llvm-svn: 22027
2005-05-14 16:42:52 +00:00
403d1c204c
Preserve calling conv when hacking on calls
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llvm-svn: 22025
2005-05-14 12:28:32 +00:00
Chris Lattner