Wesley Peck
d589353ad0
Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.
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llvm-svn: 119990
2010-11-23 03:31:01 +00:00
Chris Lattner
d935e210ee
add a 'LLVMConstIntOfArbitraryPrecision' api to the C api,
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patch by Greg Pfeil!
llvm-svn: 119989
2010-11-23 02:47:22 +00:00
Chris Lattner
41281bd30f
duncan's spider sense was right, I completely reversed the condition
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on this instcombine xform. This fixes a miscompilation of 403.gcc.
llvm-svn: 119988
2010-11-23 02:42:04 +00:00
Chris Lattner
c0fcc364c0
filecheckize
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llvm-svn: 119987
2010-11-23 02:26:52 +00:00
Jason W Kim
287d5fb10b
Fixed some style issues (no _, no spc after !)
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llvm-svn: 119986
2010-11-22 22:05:16 +00:00
Rafael Espindola
492580fa9a
Remove duplicated constants. Thanks to Jason for noticing it.
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llvm-svn: 119985
2010-11-22 21:49:05 +00:00
Benjamin Kramer
b5a2a81094
InstCombine: Implement X - A*-B -> X + A*B.
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llvm-svn: 119984
2010-11-22 20:31:27 +00:00
Jason W Kim
0941164ddb
Make the <ARCH>ELFObjectWriter statics private
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llvm-svn: 119982
2010-11-22 18:57:00 +00:00
Jason W Kim
243d3f5d8c
Fix misplaced statics.
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llvm-svn: 119981
2010-11-22 18:47:05 +00:00
Jason W Kim
dea9f17ab2
Kill trailing whitespace
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llvm-svn: 119979
2010-11-22 18:42:07 +00:00
Jason W Kim
e2fece2f4c
Refactor the ELFRelocationEntry (pull up) and move the arch-specific statics to inside the class where it belongs.
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Next step is to rationally break apart the RecordRelocation()
Probably the step will be to have 1 member function for ech slot of the ELFRelocationEntry()
llvm-svn: 119978
2010-11-22 18:41:13 +00:00
Evan Cheng
e6d55cd247
Fix epilogue codegen to avoid leaving the stack pointer in an invalid
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state. Previously Thumb2 would restore sp from fp like this:
mov sp, r7
sub, sp, #4
If an interrupt is taken after the 'mov' but before the 'sub', callee-saved
registers might be clobbered by the interrupt handler. Instead, try
restoring directly from sp:
add sp, #4
Or, if necessary (with VLA, etc.) use a scratch register to compute sp and
then restore it:
sub.w r4, r7, #8
mov sp, r7
rdar://8465407
llvm-svn: 119977
2010-11-22 18:12:04 +00:00
Mikhail Glushenkov
cfae3f46f9
Add a newline.
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llvm-svn: 119976
2010-11-22 17:10:20 +00:00
Mikhail Glushenkov
946fa2d2ee
llvmc: Make -march/-mcpu/-mtune behaviour more consistent with gcc.
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llvm-svn: 119975
2010-11-22 17:10:09 +00:00
Duncan Sands
73f0559779
If a GEP index simply advances by multiples of a type of zero size,
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then replace the index with zero.
llvm-svn: 119974
2010-11-22 16:32:50 +00:00
Kalle Raiskila
8f1131e569
Fix a bug with extractelement on SPU.
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In the attached testcase, the element was
never extracted (missing rotate).
llvm-svn: 119973
2010-11-22 16:28:26 +00:00
Rafael Espindola
e20c3d7c26
Add basic CFI methods to the streamer interface.
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llvm-svn: 119972
2010-11-22 14:27:24 +00:00
Duncan Sands
ffcd1f61d9
Move the "gep undef" -> "undef" transform from instcombine to
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InstructionSimplify.
llvm-svn: 119970
2010-11-22 13:42:49 +00:00
Rafael Espindola
5f582e980e
Remove some #includes.
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llvm-svn: 119967
2010-11-22 11:53:17 +00:00
Benjamin Kramer
632a91cba5
Implement the "if (X == 6 || X == 4)" -> "if ((X|2) == 6)" optimization.
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This currently only catches the most basic case, a two-case switch, but can be
extended later.
llvm-svn: 119964
2010-11-22 09:45:38 +00:00
Duncan Sands
f0224e2119
Don't keep track of inserted phis in PromoteMemoryToRegister: the information
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is never used. Patch by Cameron Zwarich.
llvm-svn: 119963
2010-11-22 09:41:24 +00:00
Duncan Sands
99ff019c87
Fix a compiler warning about Kind being used uninitialized
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when assertions are disabled.
llvm-svn: 119962
2010-11-22 09:38:00 +00:00
Eric Christopher
662ad8ba93
Pseudos default to 4byte size, let the instruction size field notice
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that branch tables are special.
llvm-svn: 119954
2010-11-21 23:38:19 +00:00
Wesley Peck
e25f241e37
Implement ELF object file writing support for the MBlaze backend. Its not perfect yet, but it works for many tests.
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llvm-svn: 119952
2010-11-21 22:06:28 +00:00
Wesley Peck
911abf2bc0
Implement branch analysis in the MBlaze backend.
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llvm-svn: 119951
2010-11-21 21:53:36 +00:00
Wesley Peck
470c56eef5
Make it a little bit more explicit that the MBlaze backend only supports upto
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32-bit immediate values.
llvm-svn: 119950
2010-11-21 21:39:46 +00:00
Wesley Peck
d77425e427
Fix an error in the MBlaze delay slot filler where instructions that already
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fill a delay slot are moved to fill a different delay slot.
llvm-svn: 119949
2010-11-21 21:36:12 +00:00
Chris Lattner
621c62e20d
fix comment
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llvm-svn: 119948
2010-11-21 19:05:34 +00:00
Chris Lattner
dd03f96698
apparently tailcalls are better on darwin/x86-64 than on linux?
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llvm-svn: 119947
2010-11-21 18:59:20 +00:00
Benjamin Kramer
3fb7d5556c
Initialize MemDep's TD member so buildbots don't trip over an uninitialized pointer (TD is passed to PHITransAddr).
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I wonder why this didn't explode earlier.
llvm-svn: 119944
2010-11-21 15:21:46 +00:00
Duncan Sands
c2b128ad7d
Add a rather pointless InstructionSimplify transform, inspired by recent constant
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folding improvements: if P points to a type of size zero, turn "gep P, N" into "P".
More generally, if a gep index type has size zero, instcombine could replace the
index with zero, but that is not done here.
llvm-svn: 119942
2010-11-21 13:53:09 +00:00
Duncan Sands
4ef7e7f158
Fix spelling.
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llvm-svn: 119941
2010-11-21 12:43:13 +00:00
Bill Wendling
c5ab347eb6
More Thumb encodings.
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llvm-svn: 119940
2010-11-21 11:49:36 +00:00
Bill Wendling
a472e7be70
Add encoding for ARM "trap" instruction.
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llvm-svn: 119938
2010-11-21 11:05:29 +00:00
Bill Wendling
a017020098
The "trap" instruction is one of this which doesn't have a condition code. Hack
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the code to not add a "condition code" if it's trap.
llvm-svn: 119937
2010-11-21 10:56:05 +00:00
Bill Wendling
3cce558ede
- Give "trap" the correct encoding, at least according to Darwin's assembler.
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- Add comments saying where the encodings for other instructions came from.
llvm-svn: 119936
2010-11-21 10:55:23 +00:00
Chris Lattner
1b3dffa2d1
apply Dan's fix for PR8268 which allows constant folding to handle indexes over
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zero sized elements. This allows us to compile:
#include <string>
void foo() { std::string s; }
into an empty function.
llvm-svn: 119933
2010-11-21 08:39:01 +00:00
Chris Lattner
1161b003a0
add some helper methods for asmprinter flags, from PR8417
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llvm-svn: 119932
2010-11-21 08:30:55 +00:00
Chris Lattner
4aaa7fbb98
implement PR8524, apparently mainline gas accepts movq as an alias for movd
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when transfering between i64 gprs and mmx regs.
llvm-svn: 119931
2010-11-21 08:18:57 +00:00
Chris Lattner
62a3186e3e
rework some DSE paths to use the newly-public "getPointerDependencyFrom"
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method in MemDep instead of inserting an instruction, doing a query,
then removing it. Neither operation is effectively cached.
llvm-svn: 119930
2010-11-21 08:06:10 +00:00
Chris Lattner
0d1afc82b2
the getLocationForSource/Dest methods can be static.
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llvm-svn: 119929
2010-11-21 08:05:25 +00:00
Chris Lattner
a39a40d351
add "getLocation" method to AliasAnalysis for getting the source and
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destination location of a memcpy/memmove. I'm not clear about whether
TBAA works on these, so I'm leaving it out for now. Dan, please revisit
this when convenient.
llvm-svn: 119928
2010-11-21 07:51:27 +00:00
Chris Lattner
3a0edfb37c
implement PR8576, deleting dead stores with intervening may-alias stores.
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llvm-svn: 119927
2010-11-21 07:34:32 +00:00
Chris Lattner
32a16bce7a
file checkize
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llvm-svn: 119926
2010-11-21 07:32:40 +00:00
Chris Lattner
ed3b3d47f6
add some random notes.
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llvm-svn: 119925
2010-11-21 07:05:31 +00:00
Owen Anderson
0ec4da72fc
Use by-name rather than by-order operand matching for some NEON encodings.
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llvm-svn: 119923
2010-11-21 06:47:06 +00:00
Chris Lattner
908a01328c
optimize:
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void a(int x) { if (((1<<x)&8)==0) b(); }
into "x != 3", which occurs over 100 times in 403.gcc but in no
other program in llvm-test.
llvm-svn: 119922
2010-11-21 06:44:42 +00:00
Chris Lattner
09bf382b8f
tail calls on x86 are implemented.
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llvm-svn: 119920
2010-11-21 06:10:27 +00:00
Jim Grosbach
1476bfec1e
BR_JTadd is ARM-only, so use the proper pseudo class to get the predicate.
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llvm-svn: 119918
2010-11-21 01:26:01 +00:00
Rafael Espindola
ee6aea622f
Handle PCRel relocations with absolute values. Fixes PR8656.
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llvm-svn: 119917
2010-11-21 00:48:25 +00:00