Commit Graph

70227 Commits

Author SHA1 Message Date
Cameron Zwarich
43dd06ad20 Eliminate valgrind warnings from Python on the 32-bit as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126171 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 01:00:10 +00:00
Cameron Zwarich
92efda7e91 Merge information about the number of zero, one, and sign bits of live-out registers
at phis. This enables us to eliminate a lot of pointless zexts during the DAGCombine
phase. This fixes <rdar://problem/8760114>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126170 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 00:46:27 +00:00
Cameron Zwarich
63a8dae64d Have isel visit blocks in reverse postorder rather than an undefined order. This
allows for the information propagated across basic blocks to be merged at phis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126169 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 00:46:22 +00:00
Joerg Sonnenberger
d86f482e4a Recognize loopz and loopnz as aliases for loope and loopne.
From Dimitry Andric.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126168 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 00:43:07 +00:00
Rafael Espindola
87ca0e077d Implement xgetbv and xsetbv.
Patch by Jai Menon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126165 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 00:35:18 +00:00
Eric Christopher
f8597eb0d9 Revert r125960, it's breaking darwin10 bootstrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126163 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 23:52:19 +00:00
Evan Cheng
557b297f35 Skipping over debugvalue instructions to determine whether the split spot is in a IT block. rdar://9030770
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126159 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 23:40:47 +00:00
Evan Cheng
cf13af6fde Add more debugging output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126158 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 23:39:48 +00:00
Joerg Sonnenberger
d45e8bf93b Handle FK_PCRel_1 and add a test case for this and FK_PCRel_4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126157 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 23:25:41 +00:00
Devang Patel
68e6beeccc Revert r124611 - "Keep track of incoming argument's location while emitting LiveIns."
In other words, do not keep track of argument's location.  The debugger (gdb) is not prepared to see line table entries for arguments. For the debugger, "second" line table entry marks beginning of function body.
This requires some coordination with debugger to get this working. 
 - The debugger needs to be aware of prolog_end attribute attached with line table entries.
 - The compiler needs to accurately mark prolog_end in line table entries (at -O0 and at -O1+)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126155 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 23:21:26 +00:00
Jakob Stoklund Olesen
06c0f25499 Add SplitKit::isOriginalEndpoint and use it to force live range splitting to terminate.
An original endpoint is an instruction that killed or defined the original live
range before any live ranges were split.

When splitting global live ranges, avoid creating local live ranges without any
original endpoints. We may still create global live ranges without original
endpoints, but such a range won't be split again, and live range splitting still
terminates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126151 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 23:09:46 +00:00
Sean Callanan
89e59e6343 Fixed a bug in the X86 disassembler where a member of the
X86 instruction decode structure was being interpreted as
being in units of bits, although it is actually stored in
units of bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126147 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 21:55:05 +00:00
Stuart Hastings
37c79c5942 End the line if we return early. Radar 9012638.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126141 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 21:07:07 +00:00
David Greene
8b8b4af404 Add a convenience tool for doing comparison builds of the LLVM
ecosystem.  This is a handy utility for checking changes before
committing them to the repository.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126136 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 19:23:22 +00:00
Chris Lattner
c625d3151c Better OpenBSD support, patch by Amit Kulkarni. I have no way to test
that this doesn't break gold, but it seems reasonable to me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126135 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 18:38:56 +00:00
Richard Osborne
d83318450b Add XCore intrinsics for various instructions on ports.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126132 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 18:23:30 +00:00
Stuart Hastings
ec43f8052c Test case for r126127. Radar 9012638.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126131 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 18:08:40 +00:00
Duncan Sands
7331ca853a The stack should be 16 byte aligned on 32 bit solaris. Patch by Yuri.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126130 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 17:37:17 +00:00
Duncan Sands
2cfbf018a9 If the phi node was used by an unreachable instruction that ends up using
itself without going via a phi node then we could return false here in
spite of making a change.  Also, tweak the comment because this method
can (and always could) return true without deleting the original phi node.
For example, if the phi node was used by a read-only invoke instruction
which is used by another phi node phi2 which is only used by and only uses
the invoke, then phi2 would be deleted but not the invoke instruction and
not the original phi node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126129 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 17:32:05 +00:00
Stuart Hastings
6ad82d81cc Fix to correctly support attribute((section("__DATA, __common"))).
Radar 9012638.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126127 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 17:27:17 +00:00
Chris Lattner
fb456c25c2 a serious "compare CSE" issue that is nontrivial to get right,
but which is responsible for us doing really bad things to 256.bzip2.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126126 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 17:03:47 +00:00
Chris Lattner
0e68cee62f fix a crasher in disabled code (on variable stride loops)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126125 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 17:02:55 +00:00
Duncan Sands
b4098ba03d Simplify RecursivelyDeleteDeadPHINode. The only functionality change
should be that if the phi is used by a side-effect free instruction with
no uses then the phi and the instruction now get zapped (checked by the
unittest).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126124 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 16:27:36 +00:00
NAKAMURA Takumi
d64cfe1506 Target/X86/X86FastISel: [PR6275] Fix Win32's dllimport function with fastisel.
"dllimport" function must not be GlobalVariable, but Function. It is enough to check with GlobalValue.
test/CodeGen/X86/dll-linkage.ll is updated to check llc -O0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126110 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 04:50:06 +00:00
Venkatraman Govindaraju
58269b9732 Generate correct Sparc32 ABI compliant code for functions that return a struct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126108 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 03:42:44 +00:00
NAKAMURA Takumi
afcf6ac7a8 CMake: Define LLVM_INCLUDE_TESTS in cmake/modules/HandleLLVMOptions.cmake. It affects testing stuff on clang-standalone build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126107 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 03:21:06 +00:00
NAKAMURA Takumi
0f300475be CMake: Fix breakage on clang standalone build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126106 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 03:20:57 +00:00
Chris Lattner
19310fc199 add a missed loop deletion case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126103 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 02:13:39 +00:00
Chris Lattner
408b534e43 Add some (disabled code) to print out negative strides.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126102 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 02:08:54 +00:00
Chris Lattner
477a98824a add an idiom that loop idiom could theoretically catch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126101 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 01:33:38 +00:00
Cameron Zwarich
ad48a4fc32 A lo/hi mul has higher latency than an imul r,ri, e.g. 5 cycles compared to 3
on Core 2 and Nehalem, so the code we generate is better than GCC's here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126100 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 01:29:32 +00:00
Joerg Sonnenberger
7d0805dcb8 Use a vector of pairs to implement the section stack, not two
independent vectors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126099 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 01:07:42 +00:00
Cameron Zwarich
8d7285d0e5 The signed version of our "magic number" computation for the integer approximation
of a constant had a minor typo introduced when copying it from the book, which
caused it to favor negative approximations over positive approximations in many
cases. Positive approximations require fewer operations beyond the multiplication.

In the case of division by 3, we still generate code that is a single instruction
larger than GCC's code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126097 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 00:22:02 +00:00
Oscar Fuentes
0b85d07d46 Put targets on folders, if the IDE supports the feature.
Requires CMake 2.8.3 or newer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126092 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 22:06:10 +00:00
Rafael Espindola
f7ad048f1e Add some limited support for labels in org directives. Hopefully enough to fix
PR9245.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126091 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 20:20:07 +00:00
Rafael Espindola
8e04fc3adf Dispose modules early and only create codegen when the plugin is being
used by the linker and not by nm or ar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126089 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 18:28:29 +00:00
Nick Lewycky
eff5e69c82 Make RecursivelyDeleteDeadPHINode delete a phi node that has no users and add a
test for that. With this change, test/CodeGen/X86/codegen-dce.ll no longer finds
any instructions to DCE, so delete the test.

Also renamed J and JP to I and IP in RecursivelyDeleteDeadPHINode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126088 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 18:05:56 +00:00
Rafael Espindola
cd6c93ec48 Fix some memory leaks and avoid looking in the hash tables twice.
libxul links in 7m0.403s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126085 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 16:27:25 +00:00
Oscar Fuentes
89d31ec7d2 Remove the link to Projects.html. It is useless for people working on
Visual Studio.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126083 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 15:34:12 +00:00
Benjamin Kramer
38f7f66fcc Move "A | ~(A & ?) -> -1" from InstCombine to InstructionSimplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126082 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 15:20:01 +00:00
Benjamin Kramer
91e37ef278 InstCombine: Add a bunch of combines of the form x | (y ^ z).
We usually catch this kind of optimization through InstSimplify's distributive
magic, but or doesn't distribute over xor in general.

"A | ~(A | B) -> A | ~B" hits 24 times on gcc.c.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126081 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 13:23:43 +00:00
Nadav Rotem
ed9b934f65 Fix 9267; Add vector zext support.
The DAGCombiner folds the zext into complex load instructions. This patch
prevents this optimization on vectors since none of the supported targets
knows how to perform load+vector_zext in one instruction.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126080 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 12:37:50 +00:00
Nick Lewycky
1a4021a2be Teach RecursivelyDeleteDeadPHINodes to handle multiple self-references. Patch
by Andrew Clinton!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126077 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 08:38:20 +00:00
Nick Lewycky
eafe863b6d Instead of keeping two Value*->id# mappings, keep one Value->Value mapping and
one Value set. This is faster because we only need to use the set when there
isn't already an entry in the map. No functionality change!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126076 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 08:11:03 +00:00
Eric Christopher
893a882d09 If both operands are loads from stores in memory we can't use movlpd/movlps
since one needs to be a register operand. Just use movss instead of forcing
an operand into a register.

Fixes PR9239


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126072 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 05:04:42 +00:00
Stephen Wilson
ebccf0891a This patch lets LLDB build as an LLVM subproject. LLDB is not built in
parallel with the rest of the tools directory as it depends on Clang.

This patch was first applied in r125956 and subsequently reverted in
r125964 as it broke in-tree builds.  Makefile.rules was fixed up in 
r126070 to handle missing optional directories for the in-tree case,
so it should be safe now to bring this patch back in.
 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126071 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 04:17:15 +00:00
Stephen Wilson
c156632c62 Do not try to descend into optional build directories if they do not
exist.  This makes the build logic symmetric for both the in tree and
out of tree cases.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126070 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 03:51:07 +00:00
Oscar Fuentes
00d78f1348 Use explicit add_subdirectory's for LLVM target sublibraries instead
of testing for its presence at cmake time.

This way the build automatically regenerates the makefiles when a svn
update brings in a new sublibrary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126068 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 02:55:27 +00:00
Nick Lewycky
7ac0199287 Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126065 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 02:03:04 +00:00
Eli Friedman
1347623aaf PR9218: SimplifyDemandedVectorElts can return a non-null value that is not
the instruction passed in.  Make sure to account for this correctly, instead
of looping infinitely.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126058 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19 22:42:40 +00:00