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43547 Commits

Author SHA1 Message Date
Rafael Espindola
a9d4281cc0 Invalidate the layout on any relaxation, not just Instructions. Bug found by David Meyer. 
While here, remove unused argument and rename UpdateForSlide to Invalidate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120009 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-23 08:08:33 +00:00
Rafael Espindola
d93ceeb125 Produce a relocation for pcrel absolute values. Based on a patch by David Meyer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120006 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-23 07:20:12 +00:00
Chris Lattner
9f9bd8e4af Revert functionality doug added in r98575 that was never 
documented and only used by some clang stuff I just removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120002 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-23 06:09:51 +00:00
Rafael Espindola
0e11dfc4a6 Reuse data fragments while lowering. Patch by David Meyer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119999 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-23 05:49:35 +00:00
Wesley Peck
bf17cfa3f9 Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119990 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-23 03:31:01 +00:00
Chris Lattner
5400570097 add a 'LLVMConstIntOfArbitraryPrecision' api to the C api, 
patch by Greg Pfeil!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119989 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-23 02:47:22 +00:00
Chris Lattner
79b967bd9f duncan's spider sense was right, I completely reversed the condition 
on this instcombine xform.  This fixes a miscompilation of 403.gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119988 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-23 02:42:04 +00:00
Jason W Kim
1090742689 Fixed some style issues (no _, no spc after !) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119986 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 22:05:16 +00:00
Rafael Espindola
d80f8d08ce Remove duplicated constants. Thanks to Jason for noticing it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119985 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 21:49:05 +00:00
Benjamin Kramer
93f8455d73 InstCombine: Implement X - A*-B -> X + A*B. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119984 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 20:31:27 +00:00
Jason W Kim
28ef0a5719 Make the <ARCH>ELFObjectWriter statics private 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119982 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 18:57:00 +00:00
Jason W Kim
ccbe000e09 Fix misplaced statics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119981 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 18:47:05 +00:00
Jason W Kim
858e7506e1 Kill trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119979 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 18:42:07 +00:00
Jason W Kim
4a511f0be2 Refactor the ELFRelocationEntry (pull up) and move the arch-specific statics to inside the class where it belongs. 
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()





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119978 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 18:41:13 +00:00
Evan Cheng
ab5c703fdb Fix epilogue codegen to avoid leaving the stack pointer in an invalid 
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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119977 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 18:12:04 +00:00
Duncan Sands
a63395a30f If a GEP index simply advances by multiples of a type of zero size, 
then replace the index with zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119974 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 16:32:50 +00:00
Kalle Raiskila
d87e571e62 Fix a bug with extractelement on SPU. 
In the attached testcase, the element was
never extracted (missing rotate).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119973 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 16:28:26 +00:00
Rafael Espindola
cdfecc8759 Add basic CFI methods to the streamer interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119972 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 14:27:24 +00:00
Duncan Sands
85bbff6c94 Move the "gep undef" -> "undef" transform from instcombine to 
InstructionSimplify.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119970 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 13:42:49 +00:00
Rafael Espindola
ad8aaa069c Remove some #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119967 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 11:53:17 +00:00
Benjamin Kramer
ce750f0332 Implement the "if (X == 6 || X == 4)" -> "if ((X|2) == 6)" optimization. 
This currently only catches the most basic case, a two-case switch, but can be
extended later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119964 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 09:45:38 +00:00
Duncan Sands
b05099bf42 Don't keep track of inserted phis in PromoteMemoryToRegister: the information 
is never used.  Patch by Cameron Zwarich.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119963 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 09:41:24 +00:00
Duncan Sands
3d93893895 Fix a compiler warning about Kind being used uninitialized 
when assertions are disabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119962 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-22 09:38:00 +00:00
Eric Christopher
9d89311df8 Pseudos default to 4byte size, let the instruction size field notice 
that branch tables are special.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119954 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 23:38:19 +00:00
Wesley Peck
4b04713423 Implement ELF object file writing support for the MBlaze backend. Its not perfect yet, but it works for many tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119952 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 22:06:28 +00:00
Wesley Peck
46a928b864 Implement branch analysis in the MBlaze backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119951 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 21:53:36 +00:00
Wesley Peck
6e749f31c6 Make it a little bit more explicit that the MBlaze backend only supports upto 
32-bit immediate values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119950 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 21:39:46 +00:00
Wesley Peck
5437ba48ce Fix an error in the MBlaze delay slot filler where instructions that already 
fill a delay slot are moved to fill a different delay slot.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119949 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 21:36:12 +00:00
Chris Lattner
6ffdd45d86 fix comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119948 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 19:05:34 +00:00
Chris Lattner
8bc1e45295 apparently tailcalls are better on darwin/x86-64 than on linux? 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119947 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 18:59:20 +00:00
Benjamin Kramer
dd061b2854 Initialize MemDep's TD member so buildbots don't trip over an uninitialized pointer (TD is passed to PHITransAddr). 
I wonder why this didn't explode earlier.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119944 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 15:21:46 +00:00
Duncan Sands
e60d79faf7 Add a rather pointless InstructionSimplify transform, inspired by recent constant 
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119942 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 13:53:09 +00:00
Duncan Sands
e58391073f Fix spelling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119941 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 12:43:13 +00:00
Bill Wendling
dcf0a47b76 More Thumb encodings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119940 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 11:49:36 +00:00
Bill Wendling
af2b573614 Add encoding for ARM "trap" instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119938 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 11:05:29 +00:00
Bill Wendling
9717fa9f29 The "trap" instruction is one of this which doesn't have a condition code. Hack 
the code to not add a "condition code" if it's trap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119937 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 10:56:05 +00:00
Bill Wendling
7d0affdf02 - Give "trap" the correct encoding, at least according to Darwin's assembler. 
- Add comments saying where the encodings for other instructions came from.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119936 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 10:55:23 +00:00
Chris Lattner
c1da204c43 apply Dan's fix for PR8268 which allows constant folding to handle indexes over 
zero sized elements.  This allows us to compile:

  #include <string>
  void foo() { std::string s; }

into an empty function.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119933 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 08:39:01 +00:00
Chris Lattner
cbf5d74e6a implement PR8524, apparently mainline gas accepts movq as an alias for movd 
when transfering between i64 gprs and mmx regs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119931 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 08:18:57 +00:00
Chris Lattner
604f6fe553 rework some DSE paths to use the newly-public "getPointerDependencyFrom" 
method in MemDep instead of inserting an instruction, doing a query,
then removing it.  Neither operation is effectively cached.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119930 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 08:06:10 +00:00
Chris Lattner
e90c5cb747 add "getLocation" method to AliasAnalysis for getting the source and 
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119928 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 07:51:27 +00:00
Chris Lattner
f6f1f062cc implement PR8576, deleting dead stores with intervening may-alias stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119927 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 07:34:32 +00:00
Chris Lattner
3e41106de4 add some random notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119925 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 07:05:31 +00:00
Owen Anderson
aa54524a44 Use by-name rather than by-order operand matching for some NEON encodings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119923 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 06:47:06 +00:00
Chris Lattner
75d8f599e7 optimize: 
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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119922 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 06:44:42 +00:00
Chris Lattner
79a980ad85 tail calls on x86 are implemented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119920 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 06:10:27 +00:00
Jim Grosbach
0eb49c57f0 BR_JTadd is ARM-only, so use the proper pseudo class to get the predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119918 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 01:26:01 +00:00
Rafael Espindola
12203cc7c3 Handle PCRel relocations with absolute values. Fixes PR8656. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119917 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 00:48:25 +00:00
Chris Lattner
2f5f90ad3e Implement PR8644: forwarding a memcpy value to a byval, 
allowing the memcpy to be eliminated.

Unfortunately, the requirements on byval's without explicit 
alignment are really weak and impossible to predict in the 
mid-level optimizer, so this doesn't kick in much with current
frontends.  The fix is to change clang to set alignment on all
byval arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119916 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 00:28:59 +00:00
Bill Wendling
5cc88a205d A few more thumb instruction MC encodings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119913 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 22:52:33 +00:00