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4a55817288
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17190 Commits

Author SHA1 Message Date
Richard Osborne
4a55817288 Add llvm.xcore.waitevent intrinsic. The effect of this intrinsic is to enable 
events on the thread and wait until a resource is ready to event. The vector
of the resource that is ready is returned.

llvm-svn: 126320
 2011-02-23 18:35:59 +00:00
Richard Osborne
aaac1b01fd Add XCore intrinsic for the setv instruction. 
llvm-svn: 126315
 2011-02-23 16:46:37 +00:00
Richard Osborne
2374e9683e Fix format for setc instruction. 
llvm-svn: 126314
 2011-02-23 15:20:16 +00:00
Richard Osborne
aa39bf94b4 Add XCore intrinsic for settw instruction. 
llvm-svn: 126313
 2011-02-23 14:45:03 +00:00
Evan Cheng
98e040ea71 Change VFPNeonA8 definition to make the code easier to read. 
llvm-svn: 126298
 2011-02-23 02:35:33 +00:00
Evan Cheng
da40bcab44 More fcopysign correctness and performance fix. 
The previous codegen for the slow path (when values are in VFP / NEON
registers) was incorrect if the source is NaN.

The new codegen uses NEON vbsl instruction to copy the sign bit. e.g.
        vmov.i32        d1, #0x80000000
        vbsl    d1, d2, d0
If NEON is not available, it uses integer instructions to copy the sign bit.
rdar://9034702

llvm-svn: 126295
 2011-02-23 02:24:55 +00:00
David Greene
7b0539174a [AVX] General VUNPCKL codegen support. 
llvm-svn: 126264
 2011-02-22 23:31:46 +00:00
Joerg Sonnenberger
67e0eb235d Use the same (%dx) hack for in[bwl] as for out[bwl]. 
llvm-svn: 126244
 2011-02-22 20:40:09 +00:00
Evan Cheng
f540b0e0f6 VFP single precision arith instructions can go down to NEON pipeline, but on Cortex-A8 only. 
llvm-svn: 126238
 2011-02-22 19:53:14 +00:00
Roman Divacky
f028b1614b Stack alignment is 16 bytes on FreeBSD/i386 too. 
llvm-svn: 126226
 2011-02-22 17:30:05 +00:00
Evan Cheng
f7c6f8580b Guard against de-referencing MBB.end(). 
llvm-svn: 126192
 2011-02-22 07:07:59 +00:00
Evan Cheng
6e3d087477 available_externally (hidden or not) GVs are always accessed via stubs. rdar://9027648. 
llvm-svn: 126191
 2011-02-22 06:58:34 +00:00
Eric Christopher
58b95654bc Only use blx for external function calls on thumb, these could be fixed 
up by the dynamic linker, but it's better to use the correct instruction
to begin with.

Fixes rdar://9011034

llvm-svn: 126176
 2011-02-22 01:37:10 +00:00
Joerg Sonnenberger
9dceff5417 Recognize loopz and loopnz as aliases for loope and loopne. 
From Dimitry Andric.

llvm-svn: 126168
 2011-02-22 00:43:07 +00:00
Rafael Espindola
e4a04cce2b Implement xgetbv and xsetbv. 
Patch by Jai Menon.

llvm-svn: 126165
 2011-02-22 00:35:18 +00:00
Evan Cheng
aaa5bd52f4 Skipping over debugvalue instructions to determine whether the split spot is in a IT block. rdar://9030770 
llvm-svn: 126159
 2011-02-21 23:40:47 +00:00
Devang Patel
d5c4589795 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+)

llvm-svn: 126155
 2011-02-21 23:21:26 +00:00
Sean Callanan
8aaf83f2b8 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.

llvm-svn: 126147
 2011-02-21 21:55:05 +00:00
Richard Osborne
bd0e21b5ca Add XCore intrinsics for various instructions on ports. 
llvm-svn: 126132
 2011-02-21 18:23:30 +00:00
Duncan Sands
77c058dc70 The stack should be 16 byte aligned on 32 bit solaris. Patch by Yuri. 
llvm-svn: 126130
 2011-02-21 17:37:17 +00:00
Chris Lattner
e7dc7e1e5b a serious "compare CSE" issue that is nontrivial to get right, 
but which is responsible for us doing really bad things to 256.bzip2.

llvm-svn: 126126
 2011-02-21 17:03:47 +00:00
NAKAMURA Takumi
a03e9f0267 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.

llvm-svn: 126110
 2011-02-21 04:50:06 +00:00
Venkatraman Govindaraju
1a5bbc7f1e Generate correct Sparc32 ABI compliant code for functions that return a struct. 
llvm-svn: 126108
 2011-02-21 03:42:44 +00:00
Chris Lattner
c373140c8b add a missed loop deletion case. 
llvm-svn: 126103
 2011-02-21 02:13:39 +00:00
Chris Lattner
8760c28fe1 add an idiom that loop idiom could theoretically catch. 
llvm-svn: 126101
 2011-02-21 01:33:38 +00:00
Cameron Zwarich
3384d8f317 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.

llvm-svn: 126100
 2011-02-21 01:29:32 +00:00
Cameron Zwarich
b7e676db6c 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.

llvm-svn: 126097
 2011-02-21 00:22:02 +00:00
Eric Christopher
568548ce13 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

llvm-svn: 126072
 2011-02-20 05:04:42 +00:00
Oscar Fuentes
59c8ae34f7 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.

llvm-svn: 126068
 2011-02-20 02:55:27 +00:00
Eli Friedman
0ad25251cb Minor x86 README updates. 
llvm-svn: 126054
 2011-02-19 21:54:28 +00:00
Chris Lattner
7cd801727d implement PR9264: disambiguating 'bt mem, imm' as a btl. 
This is reasonable to do since all bt-mem forms do the
same thing.

llvm-svn: 126047
 2011-02-19 21:06:36 +00:00
Eric Christopher
67a5a75e28 Fix typos. 
llvm-svn: 126018
 2011-02-19 03:19:09 +00:00
Joerg Sonnenberger
4652f152e4 Avoid dangling else warnings. 
llvm-svn: 126004
 2011-02-19 00:43:45 +00:00
Chris Lattner
a0dede2c21 add a way to disable all builtins, wire it up to opt's -disable-simplifylibcalls flag. 
llvm-svn: 125978
 2011-02-18 22:34:03 +00:00
Oscar Fuentes
6e5d344a2e Move library stuff out of the toplevel CMakeLists.txt file. 
llvm-svn: 125968
 2011-02-18 22:06:14 +00:00
Chris Lattner
63dfb2c797 introduce a new TargetLibraryInfo pass, which transformations can use to 
query about available library functions.  For now this just has 
memset_pattern16, which exists on darwin, but it can be extended for a 
bunch of other things in the future.

llvm-svn: 125965
 2011-02-18 21:50:34 +00:00
Bruno Cardoso Lopes
d97e3e6dad Fix style and a typo 
llvm-svn: 125949
 2011-02-18 19:49:06 +00:00
Bruno Cardoso Lopes
ad05904e0b Add assembly parsing support for "msr" and also fix its encoding. Also add 
testcases for the disassembler to make sure it still works for "msr".

llvm-svn: 125948
 2011-02-18 19:45:59 +00:00
Chris Lattner
2aebf9f4ad add a poor division by constant case. 
llvm-svn: 125832
 2011-02-18 05:35:49 +00:00
Joerg Sonnenberger
efa8090e2a Recognize monitor/mwait with explicit register arguments 
llvm-svn: 125805
 2011-02-18 00:48:11 +00:00
Joerg Sonnenberger
9f8f3a2c59 Recognize leavel and leaveq aliases for leave. 
Validate encoding of leave in 64bit mode.

llvm-svn: 125795
 2011-02-17 23:36:39 +00:00
David Greene
244920d662 [AVX] Recorganize X86ShuffleDecode into its own library 
(LLVMX86Utils.a) to break cyclic library dependencies between
LLVMX86CodeGen.a and LLVMX86AsmParser.a.  Previously this code was in
a header file and marked static but AVX requires some additional
functionality here that won't be used by all clients.  Since including
unused static functions causes a gcc compiler warning, keeping it as a
header would break builds that use -Werror.  Putting this in its own
library solves both problems at once.

llvm-svn: 125765
 2011-02-17 19:18:59 +00:00
Dan Gohman
71117af2db The labyrinthine X86 backend no longer appears to require 
these patterns.

llvm-svn: 125759
 2011-02-17 18:50:19 +00:00
NAKAMURA Takumi
00228d0c2c Triple::MinGW64 is deprecated and removed. We can use Triple::MinGW32 generally. 
No one uses *-mingw64. mingw-w64 is represented as {i686|x86_64}-w64-mingw32. In llvm side, i686 and x64 can be treated as similar way.

llvm-svn: 125747
 2011-02-17 12:24:17 +00:00
NAKAMURA Takumi
8d39c3a632 Fix whitespace. 
llvm-svn: 125746
 2011-02-17 12:23:50 +00:00
Duncan Sands
e0ece264ba This has been implemented. 
llvm-svn: 125738
 2011-02-17 08:16:56 +00:00
Chris Lattner
035876162f add some notes on compares + binops. Remove redundant entries. 
llvm-svn: 125702
 2011-02-17 01:43:46 +00:00
Chris Lattner
9f4e529571 Add a few missed xforms from GCC PR14753 
llvm-svn: 125681
 2011-02-16 19:16:34 +00:00
Stuart Hastings
47e45a32a8 Swap VT and DebugLoc operands of getExtLoad() for consistency with 
other getNode() methods.  Radar 9002173.

llvm-svn: 125665
 2011-02-16 16:23:55 +00:00
Eli Friedman
b409f8da64 Remove outdated README entry. 
llvm-svn: 125660
 2011-02-16 07:41:19 +00:00