720683752e
fix overflow checks in SmallVector:
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"The code was doing "if (End+NumInputs > Capacity) ...". If End is
close to 0xFFFFFFFF and NumInputs is large, it'll overflow, the
condition will come out false, and the vector won't grow to
accommodate the new elements, and the program will crash in memmove."
Patch by Jeffrey Yasskin!
llvm-svn: 68277
2009-04-02 03:06:26 +00:00
12062ba83d
Fix build on Linux.
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llvm-svn: 68269
2009-04-02 01:11:37 +00:00
98f912bf13
Reapply r68211, with the miscompilations it caused fixed.
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llvm-svn: 68262
2009-04-01 23:53:49 +00:00
66b3fffa60
Make the constants fit.
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llvm-svn: 68258
2009-04-01 22:44:18 +00:00
ec9c58f7e5
Clean up pass manager cache after each run.
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llvm-svn: 68254
2009-04-01 22:34:41 +00:00
d2eb0a63a1
silence warning in release-asserts build.
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llvm-svn: 68253
2009-04-01 22:14:45 +00:00
4abd56677d
Add llvm::Triple class for abstracting access to target triples.
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- The code is silly, I'm just amusing myself. Rewrite to be efficient
if you like. :)
Also, if you wish to debate the proper names of the triple components
I'm all ears.
llvm-svn: 68252
2009-04-01 21:53:23 +00:00
7182686dbf
Fixed file header comment.
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llvm-svn: 68250
2009-04-01 21:37:19 +00:00
1757a810ce
Added tests for math utility functions; fixed another test's header comment.
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llvm-svn: 68249
2009-04-01 21:36:40 +00:00
cb943df724
Fixed spelling.
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llvm-svn: 68248
2009-04-01 21:33:08 +00:00
e2ff483afd
Remove dead code.
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llvm-svn: 68246
2009-04-01 21:27:08 +00:00
d978cc5c63
add this to SVN to allow collaborative hacking.
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llvm-svn: 68243
2009-04-01 21:11:04 +00:00
807a0f207d
Add range insert method for DenseSet and define DenseMapInfo for chars.
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Patch by Kevin Fan!
llvm-svn: 68239
2009-04-01 19:50:49 +00:00
856e339241
Recognize arm triplets.
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llvm-svn: 68229
2009-04-01 18:54:56 +00:00
cff6953c45
Use CHAR_BIT instead of hard-coding 8 in several places where it
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is appropriate. This helps visually differentiate host-oriented
calculations from target-oriented calculations.
llvm-svn: 68227
2009-04-01 18:45:54 +00:00
061cf25072
Constify method to make VC++ happy. Patch by Brian Diekelman!
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llvm-svn: 68222
2009-04-01 18:24:22 +00:00
0170402fe8
Use LLVM type names instead of C type names in comments, to be
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less ambiguous and less C-specific.
llvm-svn: 68219
2009-04-01 18:10:16 +00:00
cf1ec2cc68
Fix PR3862: Recognize some ARM-specific constraints for immediates in inline
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assembly.
llvm-svn: 68218
2009-04-01 17:58:54 +00:00
c4971721ea
Revert r68172. It caused regressions in
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Applications/Burg/burg
Applications/ClamAV/clamscan
and many other tests.
llvm-svn: 68211
2009-04-01 16:37:47 +00:00
23fe17f55b
Fixed spelling.
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llvm-svn: 68209
2009-04-01 16:13:29 +00:00
d28577651e
CMake: Have generated Xcode projects also contain the LLVM header files.
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llvm-svn: 68206
2009-04-01 15:40:21 +00:00
9a196c0119
Detect that we're building from a git checkout like we do for cvs and svn.
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Based on a patch by Nicolas Trangez on the unladen-swallow mailing list!
llvm-svn: 68187
2009-04-01 04:39:25 +00:00
7e06443d44
hopefully fix an apparent build error on windows.
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llvm-svn: 68175
2009-04-01 02:03:38 +00:00
647cffba61
fix a serious regression I introduced in my previous patch.
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llvm-svn: 68173
2009-04-01 01:43:03 +00:00
ff5961b46c
Enhance GVN to propagate simple conditionals. This fixes PR3921.
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llvm-svn: 68172
2009-04-01 01:20:45 +00:00
7f1f0b03e2
include Makefile.common before using $(BuildMode) to get its definition
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llvm-svn: 68167
2009-04-01 00:35:00 +00:00
5fc1a0339c
* Fixed spelling of `invertible'
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* Simplified if statement
llvm-svn: 68163
2009-04-01 00:15:46 +00:00
a9d1032f9c
Allow the use of pointers to const within PointerUnion.
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llvm-svn: 68159
2009-03-31 23:19:54 +00:00
169b2f191d
add a converting operator
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llvm-svn: 68158
2009-03-31 23:09:51 +00:00
2d8cd80ee0
reimplement BitcodeReaderValueList in terms of WeakVH instead of making
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it be an LLVM IR User object.
llvm-svn: 68156
2009-03-31 22:55:09 +00:00
f72ce6ea8b
Make the key of ValueRankMap an AssertingVH, so that we die violently
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if it dangles.
llvm-svn: 68150
2009-03-31 22:13:29 +00:00
90234f34c6
Add two new classes: WeakVH and AssertingVH. These are both "ValueHandles",
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which are effectively smart pointers to Value*'s. They are both very light
weight and simple, and react to values being destroyed or being RAUW'd.
WeakVN does a best effort to follow a value around, including through RAUW
operations and will get nulled out of the value is destroyed. This is useful
for the eventual "metadata that references a value" work, because it is a
reference to a value that does not show up on its use_* list.
AssertingVH is a pointer that compiles down to a dumb raw pointer when
assertions are disabled. When enabled, it emits an assertion if the
pointed-to value is destroyed while it is still being referenced. This
is very useful for Maps and other things, and should have caught the recent
bugs in CallGraph and Reassociate, for example.
llvm-svn: 68149
2009-03-31 22:11:05 +00:00
e756f15703
teach PointerLikeTypeTraits that all pointers to pointers may only be 4-byte aligned.
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llvm-svn: 68147
2009-03-31 21:28:39 +00:00
e0d25e42e9
add some accessors so I can play games with DenseMaps.
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llvm-svn: 68145
2009-03-31 20:57:23 +00:00
826b6f0f7c
Throttle back "fold select into operand" transformation. InstCombine should not generate selects of two constants unless they are selects of 0 and 1.
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e.g.
define i32 @t1(i32 %c, i32 %x) nounwind {
%t1 = icmp eq i32 %c, 0
%t2 = lshr i32 %x, 18
%t3 = select i1 %t1, i32 %t2, i32 %x
ret i32 %t3
}
was turned into
define i32 @t2(i32 %c, i32 %x) nounwind {
%t1 = icmp eq i32 %c, 0
%t2 = select i1 %t1, i32 18, i32 0
%t3 = lshr i32 %x, %t2
ret i32 %t3
}
For most targets, that means materializing two constants and then a select. e.g. On x86-64
movl %esi, %eax
shrl $18, %eax
testl %edi, %edi
cmovne %esi, %eax
ret
=>
xorl %eax, %eax
testl %edi, %edi
movl $18, %ecx
cmovne %eax, %ecx
movl %esi, %eax
shrl %cl, %eax
ret
Also, the optimizer and codegen can reason about shl / and / add, etc. by a constant. This optimization will hinder optimizations using ComputeMaskedBits.
llvm-svn: 68142
2009-03-31 20:42:45 +00:00
0d551591ea
Fully general expansion of integer shift of any size.
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llvm-svn: 68134
2009-03-31 19:39:24 +00:00
d9d6e427d6
i128 shift libcalls are not available on x86.
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llvm-svn: 68133
2009-03-31 19:38:51 +00:00
6b42dfddf4
Reapply 68073, with fixes. EH Landing-pad basic blocks are not
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entered via fall-through. Don't miss fallthroughs from blocks
terminated by conditional branches. Also, move
isOnlyReachableByFallthrough out of line.
llvm-svn: 68129
2009-03-31 18:39:13 +00:00
eccc5967bf
Do not pass '-relocation-model=pic' to llc.
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Does not work well on 32 bit targets. Bug reported by Albert Graef.
This patch also adds new "-Wllc,option" syntax to pass options to llc.
llvm-svn: 68127
2009-03-31 18:33:54 +00:00
1d249d984c
Stop guessing, start thinking, and make PointerUnion3::is actually be correct.
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llvm-svn: 68126
2009-03-31 18:31:03 +00:00
6161b3ccf6
Add an explicit -asm-verbose to these tests, to make it
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possible to run the tests with -asm-verbose defaulting
to false.
llvm-svn: 68124
2009-03-31 18:20:47 +00:00
4ce6e69022
Update call graph after inlining invoke.
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Patch by Jay Foad.
llvm-svn: 68120
2009-03-31 17:36:12 +00:00
fb1a6eb69b
Add llvm::sys::getHostTriple and remove
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llvm::sys::getOS{Name,Version}.
Right now the implementation just derives from LLVM_HOSTTRIPLE (which
is wrong, but it doesn't look like we have a define for the target
triple). Ideally this routine would actually be able to compute the
triple for targets we care about.
llvm-svn: 68118
2009-03-31 17:30:15 +00:00
d51f196ff5
Minor top-level comment fix.
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llvm-svn: 68113
2009-03-31 16:51:18 +00:00
90ea62cba6
Tidy up some comments.
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llvm-svn: 68112
2009-03-31 16:48:35 +00:00
0837aa99ea
Add a comment.
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llvm-svn: 68111
2009-03-31 16:46:45 +00:00
9277379fc0
remove unused arguments.
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llvm-svn: 68109
2009-03-31 16:16:57 +00:00
6afae239c2
Really temporarily revert r68073.
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llvm-svn: 68100
2009-03-31 08:42:40 +00:00
b8017e02ca
Oy! When reverting r68073, I added in experimental code. Sorry...
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llvm-svn: 68099
2009-03-31 08:41:31 +00:00
4486c1fac0
Remove the "fast" cases for spill and restore point determination, as these were subtlely wrong in obscure cases. Patch the testcase
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to account for this change.
llvm-svn: 68093
2009-03-31 08:27:09 +00:00
Chris Lattner