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17616 Commits

Author SHA1 Message Date
Bob Wilson
0fef58465c Fix comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122968 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 19:24:32 +00:00
Benjamin Kramer
fa36680076 Add a note from llvmdev, this time with more info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122966 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 17:35:50 +00:00
Rafael Espindola
2f867a63da Correctly disassemble truncated asm. 
Patch by Richard Simth.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122962 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 16:48:42 +00:00
Benjamin Kramer
7d9f51f4b5 EarlyCSE does this now (and GVN always did it). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122960 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 13:19:46 +00:00
Benjamin Kramer
240d42d185 InstCombine: If we call llvm.objectsize on a malloc call we can replace it with the size passed to malloc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122959 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 13:11:05 +00:00
Benjamin Kramer
5191e7cc26 Remove dead code and silence warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122957 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 13:01:02 +00:00
Evan Cheng
461f1fc359 Use movups to lower memcpy and memset even if it's not fast (like corei7). 
The theory is it's still faster than a pair of movq / a quad of movl. This
will probably hurt older chips like P4 but should run faster on current
and future Intel processors. rdar://8817010


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122955 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 07:58:36 +00:00
Chris Lattner
cce240d26b add a note about object size from drystone, add a poorly optimized loop from 179.art. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122954 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 07:41:22 +00:00
Chris Lattner
c1853e4a03 add a trivial instcombine missed in Dhrystone 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122953 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 07:09:23 +00:00
Evan Cheng
0521928ae7 Re-implement r122936 with proper target hooks. Now getMaxStoresPerMemcpy 
etc. takes an option OptSize. If OptSize is true, it would return
the inline limit for functions with attribute OptSize.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122952 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 06:52:41 +00:00
Bill Wendling
a99ec28134 PR8919 - LLVM incorrectly generates "_alloca" as the stack probing call. That 
works only on MinGW32. On 64-bit, the function to call is "__chkstk".
Patch by KS Sreeram!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122934 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 00:50:34 +00:00
Bill Wendling
78d15761e4 PR8918 - When used with MinGW64, LLVM generates a "calll __main" at the 
beginning of the "main" function. The assembler complains about the invalid
suffix for the 'call' instruction. The right instruction is "callq __main".
Patch by KS Sreeram!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122933 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 00:47:10 +00:00
Chris Lattner
c010e61ae1 fix PR8900, a shuffle miscompilation. Patch by Nadav Rotem! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122921 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-05 22:28:46 +00:00
Chris Lattner
c46ec649b1 silence more self assignment warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122920 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-05 22:26:52 +00:00
Chris Lattner
54c6d6f42d fix some -Wself-assign warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122893 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-05 18:41:05 +00:00
Wesley Peck
3d2148f5ac Commit 122778 broke DWARF debug output when using the MBlaze backend. Fixed by overriding TargetFrameInfo::getFrameIndexOffset to take into account the new frame index information. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122889 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-05 17:34:20 +00:00
Jakob Stoklund Olesen
631ee4b89f Use the EdgeBundles analysis in X86FloatingPoint instead of recomputing CFG 
bundles in the pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122833 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-04 21:10:11 +00:00
Jakob Stoklund Olesen
8dd070edc2 Turn the EdgeBundles class into a stand-alone machine CFG analysis pass. 
The analysis will be needed by both the greedy register allocator and the
X86FloatingPoint pass. It only needs to be computed once when the CFG doesn't
change.

This pass is very fast, usually showing up as 0.0% wall time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122832 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-04 21:10:05 +00:00
Dale Johannesen
1e08cd1eae Eliminate a warning compiling with llvm-gcc. (IMO the 
warning is overzealous but gcc is what it is.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122829 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-04 19:31:24 +00:00
Andrew Trick
6018deefe8 Fix the ARM IIC_iCMPsi itinerary and add an important assert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122794 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-04 00:32:57 +00:00
Bill Wendling
2c502f915f Formatting changes. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122789 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-03 23:59:05 +00:00
Evan Cheng
7158e08b8e Use pushq / popq instead of subq $8, %rsp / addq $8, %rsp to adjust stack in 
prologue and epilogue if the adjustment is 8. Similarly, use pushl / popl if
the adjustment is 4 in 32-bit mode.

In the epilogue, takes care to pop to a caller-saved register that's not live
at the exit (either return or tailcall instruction).
rdar://8771137


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122783 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-03 22:53:22 +00:00
Wesley Peck
b020808f0d Fix more stack layout issues in the MBlaze backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122778 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-03 21:40:26 +00:00
Benjamin Kramer
80220369b0 Try to reuse the value when lowering memset. 
This allows us to compile:
  void test(char *s, int a) {
    __builtin_memset(s, a, 15);
  }
into 1 mul + 3 stores instead of 3 muls + 3 stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122710 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-02 19:57:05 +00:00
Oscar Fuentes
3458534f11 A workaround for a bug in cmake 2.8.3 diagnosed on PR 8885. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122706 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-02 19:32:31 +00:00
Chris Lattner
527b47d189 update a bunch of entries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122700 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-02 18:31:38 +00:00
Chris Lattner
cf078f2b20 Allow loop-idiom to run on multiple BB loops, but still only scan the loop 
header for now for memset/memcpy opportunities.  It turns out that loop-rotate
is successfully rotating loops, but *DOESN'T MERGE THE BLOCKS*, turning "for 
loops" into 2 basic block loops that loop-idiom was ignoring.

With this fix, we form many *many* more memcpy and memsets than before, including
on the "history" loops in the viterbi benchmark, which look like this:

        for (j=0; j<MAX_history; ++j) {
          history_new[i][j+1] = history[2*i][j];
        }

Transforming these loops into memcpy's speeds up the viterbi benchmark from
11.98s to 3.55s on my machine.  Woo.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122685 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-02 07:58:36 +00:00
Chris Lattner
15df04472a a missed __builtin_object_size case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122676 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-01 22:57:31 +00:00
Chris Lattner
9c8fb9e820 various updates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122675 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-01 22:52:11 +00:00
Rafael Espindola
03277e7fb4 Add support for the 'H' modifier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122667 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-01 20:58:46 +00:00
Anton Korobeynikov
4d72860835 Model operand restrictions of mul-like instructions on ARMv5 via 
earlyclobber stuff. This should fix PRs 2313 and 8157.

Unfortunately, no testcase, since it'd be dependent on register
assignments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122663 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-01 20:38:38 +00:00
Duncan Sands
124708d9b4 Revert commit 122654 at the request of Chris, who reckons that instsimplify 
is the wrong hammer for this nail, and is probably right.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122661 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-01 20:08:02 +00:00
Duncan Sands
7cf85e74e3 Fix a README item by having InstructionSimplify do a mild form of value 
numbering, in which it considers (for example) "%a = add i32 %x, %y" and
"%b = add i32 %x, %y" to be equal because the operands are equal and the
result of the instructions only depends on the values of the operands.
This has almost no effect (it removes 4 instructions from gcc-as-one-file),
and perhaps slows down compilation: I measured a 0.4% slowdown on the large
gcc-as-one-file testcase, but it wasn't statistically significant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122654 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-01 16:12:09 +00:00
Che-Liang Chiou
c88e91b875 ptx: remove reg-reg addressing mode and st.const 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122653 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-01 11:58:58 +00:00
Che-Liang Chiou
ad83c1d383 ptx: add store instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122652 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-01 10:50:37 +00:00
Oscar Fuentes
ba6f918a6d Add to the list of cmake files the object file, not the asm file. This 
is necessary for executing the custom command that runs the
assember. Fixes PR8877.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122649 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-31 20:15:37 +00:00
Nick Lewycky
c00210cef2 Add another non-commutable instruction that gas accepts commuted forms for. 
Fixes PR8861.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122641 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-30 22:10:49 +00:00
Che-Liang Chiou
d34f19f7ba ptx: add state spaces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122638 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-30 10:41:27 +00:00
Wesley Peck
b4aec92453 Fix stack layout error in MBlaze backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122631 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-29 19:46:28 +00:00
Venkatraman Govindaraju
12db7b68b6 SPARC backend fix: correctly passing arguments through stack 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122626 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-29 05:37:15 +00:00
NAKAMURA Takumi
7d63a2c2e8 CMake: Add disabling optimization on MSVC8 and MSVC10 as workaround for some files in Target/ARM and Target/X86. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122623 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-29 03:59:27 +00:00
Venkatraman Govindaraju
f661277a9b Multiple SPARC backend fixes: added Y register; updated select_cc, subx, subxcc defs/uses; 
and fixed CustomInserter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122607 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-28 20:39:17 +00:00
Chris Lattner
1dc5db2beb add a note from llvmdev 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122603 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-28 18:45:02 +00:00
Rafael Espindola
3a83c40ab6 Add support for the same encodings of the personality function that gnu as 
supports.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122577 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-27 00:36:05 +00:00
Chris Lattner
6dbb5dc5eb fix some sort of weird pasto 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122560 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-26 12:05:11 +00:00
Chris Lattner
8a4893e013 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122559 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-26 03:53:31 +00:00
Andrew Trick
2da8bc8a5f Various bits of framework needed for precise machine-level selection 
DAG scheduling during isel. Most new functionality is currently
guarded by -enable-sched-cycles and -enable-sched-hazard.

Added InstrItineraryData::IssueWidth field, currently derived from
ARM itineraries, but could be initialized differently on other targets.

Added ScheduleHazardRecognizer::MaxLookAhead to indicate whether it is
active, and if so how many cycles of state it holds.

Added SchedulingPriorityQueue::HasReadyFilter to allowing gating entry
into the scheduler's available queue.

ScoreboardHazardRecognizer now accesses the ScheduleDAG in order to
get information about it's SUnits, provides RecedeCycle for bottom-up
scheduling, correctly computes scoreboard depth, tracks IssueCount, and
considers potential stall cycles when checking for hazards.

ScheduleDAGRRList now models machine cycles and hazards (under
flags). It tracks MinAvailableCycle, drives the hazard recognizer and
priority queue's ready filter, manages a new PendingQueue, properly
accounts for stall cycles, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122541 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-24 05:03:26 +00:00
Andrew Trick
6e8f4c4048 whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122539 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-24 04:28:06 +00:00
Jim Grosbach
f12eee75d1 Use a StringSwitch<> instead of a manually constructed string matcher. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122530 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-24 00:03:39 +00:00
Evan Cheng
e4a2dd2f1a Code clean up. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122528 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-23 23:54:17 +00:00
Jim Grosbach
b0ad9cf935 Remove dead patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122524 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-23 23:20:13 +00:00
Jim Grosbach
940c8e5494 Recognize a few more documented register name aliases for ARM in the asm lexer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122523 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-23 23:19:54 +00:00
Bob Wilson
3c904694fc Radar 8803471: Fix expansion of ARM BCCi64 pseudo instructions. 
If the basic block containing the BCCi64 (or BCCZi64) instruction ends with
an unconditional branch, that branch needs to be deleted before appending
the expansion of the BCCi64 to the end of the block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122521 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-23 22:45:49 +00:00
Chris Lattner
036609bd7d Flag -> Glue, the ongoing saga 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122513 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-23 18:28:41 +00:00
Chris Lattner
29d8f0cae4 flags -> glue for selectiondag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-23 17:24:32 +00:00
Benjamin Kramer
9d071cbb92 Remove/fix invalid README entries. The well thought out strcpy function doesn't return a pointer to the end of the string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122496 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-23 15:32:07 +00:00
Benjamin Kramer
3e4106105b Remove some obsolete README items, add a new one off the top of my head. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122495 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-23 15:07:02 +00:00
Jeffrey Yasskin
8e68c38735 Change all self assignments X=X to (void)X, so that we can turn on a 
new gcc warning that complains on self-assignments and
self-initializations.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122458 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-23 00:58:24 +00:00
Jim Grosbach
9584bd83e6 Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122456 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 23:26:02 +00:00
Benjamin Kramer
e915ff30cd X86: Lower a select directly to a setcc_carry if possible. 
int test(unsigned long a, unsigned long b) { return -(a < b); }
compiles to
  _test:                              ## @test
    cmpq  %rsi, %rdi                  ## encoding: [0x48,0x39,0xf7]
    sbbl  %eax, %eax                  ## encoding: [0x19,0xc0]
    ret                               ## encoding: [0xc3]
instead of
  _test:                              ## @test
    xorl  %ecx, %ecx                  ## encoding: [0x31,0xc9]
    cmpq  %rsi, %rdi                  ## encoding: [0x48,0x39,0xf7]
    movl  $-1, %eax                   ## encoding: [0xb8,0xff,0xff,0xff,0xff]
    cmovael %ecx, %eax                ## encoding: [0x0f,0x43,0xc1]
    ret                               ## encoding: [0xc3]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122451 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 23:09:28 +00:00
Che-Liang Chiou
fc7072c3c4 ptx: add ld instruction and test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122398 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 10:38:51 +00:00
Wesley Peck
9eb337a2b7 Don't generate carry bit when loading immediate values on the Microblaze. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122385 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 01:29:32 +00:00
Wesley Peck
6b3bbb149f Add support for some of the LLVM atomic operations to the MBlaze backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122384 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 01:15:01 +00:00
Wesley Peck
5f996d1025 Modeling the carry bit in the MSR register of the MicroBlaze. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122381 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 00:53:07 +00:00
Wesley Peck
025c4587d7 Fix a regression introduced into the MBlaze delay slot filler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122379 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 00:22:59 +00:00
Benjamin Kramer
7d6fe13efc Add some x86 specific dagcombines for conditional increments. 
(add Y, (sete  X, 0)) -> cmp X, 1; adc  0, Y
(add Y, (setne X, 0)) -> cmp X, 1; sbb -1, Y
(sub (sete  X, 0), Y) -> cmp X, 1; sbb  0, Y
(sub (setne X, 0), Y) -> cmp X, 1; adc -1, Y

for
  unsigned foo(unsigned a, unsigned b) {
    if (a == 0) b++;
    return b;
  }
we now get:
  foo:
    cmpl  $1, %edi
    movl  %esi, %eax
    adcl  $0, %eax
    ret
instead of:
  foo:
    testl %edi, %edi
    sete  %al
    movzbl  %al, %eax
    addl  %esi, %eax
    ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122364 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 21:41:44 +00:00
Bob Wilson
316009054e Add ARM-specific DAG combining to cast i64 vector element load/stores to f64. 
Type legalization splits up i64 values into pairs of i32 values, which leads
to poor quality code when inserting or extracting i64 vector elements.
If the vector element is loaded or stored, it can be treated as an f64 value
and loaded or stored directly from a VPR register.  Use the pre-legalization
DAG combiner to cast those vector elements to f64 types so that the type
legalizer won't mess them up.  Radar 8755338.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122319 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 06:43:19 +00:00
Eric Christopher
c19aadb8b0 Arm and thumb call instructions are also in different orders. 
Fixes rdar://8782223


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122313 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 03:50:43 +00:00
Chris Lattner
f1b4eafbfe rename MVT::Flag to MVT::Glue. "Flag" is a terrible name for 
something that just glues two nodes together, even if it is
sometimes used for flags.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122310 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 02:38:05 +00:00
Eric Christopher
6e90ce21cc If we're not using reg+reg offset we're using reg+imm, set the opcode 
to be the one we want to use. bugpoint reduced testcase is a little large,
I'll see if I can simplify it down more.

Fixes part of rdar://8782207


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122307 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 02:12:07 +00:00
Bill Wendling
a519d57725 Fix a copy-pasto. When the tBR_JTr instruction was converted to using the 
tPseudoInst class, its size was changed from "special" to "2 bytes". This is
incorrect because the jump table will no longer be taken into account when
calculating branch offsets.
<rdar://problem/8782216>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122303 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 01:57:15 +00:00
Bill Wendling
9a4d2e40a0 Comment cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122302 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 01:54:40 +00:00
Nate Begeman
672fb6225b Implement feedback from Bruno on making pblendvb an x86-specific ISD node in addition to being an intrinsic, and convert 
lowering to use it.  Hopefully the pattern fragment is doing the right thing with XMM0, looks correct in testing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122277 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 22:04:24 +00:00
Wesley Peck
d66a32c35f Teach the MBlaze disassembler to disassemble special purpose registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122269 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 21:18:04 +00:00
Wesley Peck
9c0068f0a3 Teach the MBlaze asm parser how to parse special purpose register names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122261 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 20:43:24 +00:00
Daniel Dunbar
67e0c212c2 Add header... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122247 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 15:45:51 +00:00
Daniel Dunbar
9b2f25e313 X86/MC/Mach-O: Split out createX86MachObjectWriter(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122246 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 15:07:39 +00:00
Chris Lattner
23a0199f05 now that addc/adde are gone, "ADDC" in the X86 backend uses EFLAGS results, 
the same as setcc.  Optimize ADDC(0,0,FLAGS) -> SET_CARRY(FLAGS).  This is
a step towards finishing off PR5443.  In the testcase in that bug we now  get:

	movq	%rdi, %rax
	addq	%rsi, %rax
	sbbq	%rcx, %rcx
	testb	$1, %cl
	setne	%dl
	ret

instead of:

	movq	%rdi, %rax
	addq	%rsi, %rax
	movl	$0, %ecx
	adcq	$0, %rcx
	testq	%rcx, %rcx
	setne	%dl
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122219 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 01:37:09 +00:00
Chris Lattner
39ffcb7b62 We lower setb to sbb with the hope that the and will go away, when it 
doesn't, match it back to setb.

On a 64-bit version of the testcase before we'd get:

	movq	%rdi, %rax
	addq	%rsi, %rax
	sbbb	%dl, %dl
	andb	$1, %dl
	ret

now we get:

	movq	%rdi, %rax
	addq	%rsi, %rax
	setb	%dl
	ret




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122217 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 01:16:03 +00:00
Chris Lattner
d8ff7eca8c use for loop over types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122214 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 01:03:27 +00:00
Chris Lattner
5b85654844 Change the X86 backend to stop using the evil ADDC/ADDE/SUBC/SUBE nodes (which 
their carry depenedencies with MVT::Flag operands) and use clean and beautiful
EFLAGS dependences instead.

We do this by changing the modelling of SBB/ADC to have EFLAGS input and outputs
(which is what requires the previous scheduler change) and change X86 ISelLowering
to custom lower ADDC and friends down to X86ISD::ADD/ADC/SUB/SBB nodes.

With the previous series of changes, this causes no changes in the testsuite, woo.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122213 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 00:59:46 +00:00
Mon P Wang
a0fd0d5b27 Prevents PerformShuffleCombine from creating a node with an illegal type after legalize types 
has run, e.g., prevent creating an i64 node from a v2i64 when i64 is not a legal type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122206 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 23:55:53 +00:00
Chris Lattner
c19d1c3ba2 improve the setcc -> setcc_carry optimization to happen more 
consistently by moving it out of lowering into dag combine.

Add some missing patterns for matching away extended versions of setcc_c.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122201 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 22:08:31 +00:00
Chris Lattner
481eebc931 simplify some code to just reuse a setcc if we can instead of 
going through the CSE maps to get it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122196 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 21:23:48 +00:00
Nick Lewycky
476b242fe7 Add missing standard headers. Patch by Joerg Sonnenberger! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122193 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 20:43:38 +00:00
Nick Lewycky
2402123413 Add missing std:: prefixes to some calls. C++ doesn't require that <cfoo> 
headers provide symbols outside namespace std and the LLVM coding standards
state that we should prefix all of them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122192 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 20:42:43 +00:00
Chris Lattner
2a786eb030 now that generic vector types aren't selected onto MMX operations, 
we don't need -disable-mmx anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122189 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 20:19:20 +00:00
Chris Lattner
e019ec168b reduce copy/paste programming with the power of for loops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122187 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 20:07:10 +00:00
Chris Lattner
a34b3cf953 X86 supports i8/i16 overflow ops (except i8 multiplies), we should 
generate them.  

Now we compile:

define zeroext i8 @X(i8 signext %a, i8 signext %b) nounwind ssp {
entry:
  %0 = tail call %0 @llvm.sadd.with.overflow.i8(i8 %a, i8 %b)
  %cmp = extractvalue %0 %0, 1
  br i1 %cmp, label %if.then, label %if.end

into:

_X:                                     ## @X
## BB#0:                                ## %entry
	subl	$12, %esp
	movb	16(%esp), %al
	addb	20(%esp), %al
	jo	LBB0_2

Before we were generating:

_X:                                     ## @X
## BB#0:                                ## %entry
	pushl	%ebp
	movl	%esp, %ebp
	subl	$8, %esp
	movb	12(%ebp), %al
	testb	%al, %al
	setge	%cl
	movb	8(%ebp), %dl
	testb	%dl, %dl
	setge	%ah
	cmpb	%cl, %ah
	sete	%cl
	addb	%al, %dl
	testb	%dl, %dl
	setge	%al
	cmpb	%al, %ah
	setne	%al
	andb	%cl, %al
	testb	%al, %al
	jne	LBB0_2




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122186 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 20:03:11 +00:00
Chris Lattner
e5cbdca3bd recognize an unsigned add with overflow idiom into uadd. 
This resolves a README entry and technically resolves PR4916,
but we still get poor code for the testcase in that PR because
GVN isn't CSE'ing uadd with add, filed as PR8817.

Previously we got:

_test7:                                 ## @test7
	addq	%rsi, %rdi
	cmpq	%rdi, %rsi
	movl	$42, %eax
	cmovaq	%rsi, %rax
	ret

Now we get:

_test7:                                 ## @test7
	addq	%rsi, %rdi
	movl	$42, %eax
	cmovbq	%rsi, %rax
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122182 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 19:37:52 +00:00
Anton Korobeynikov
c8bd78c16b Restore the behavior of frame lowering before my refactoring. 
It turns out that ppc backend has really weird interdependencies
over different hooks and all stuff is fragile wrt small changes.
This should fix PR8749


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 19:53:14 +00:00
Rafael Espindola
1ec5bd31fe Remove the MCObjectFormat class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 05:37:28 +00:00
Rafael Espindola
bff66a86e6 Move some data to the TargetWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122134 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:27:34 +00:00
Bill Wendling
a68a4fdf37 r120333 changed the opcode for the Thumb1 stuff from ARM::tMOVr to 
ARM::tMOVgpr2gpr. But this check didn't change. As a result, we were getting
misaligned references to the jump table from an ADR instruction.

There is a test case, but unfortunately it's sensitive to random code changes.

<rdar://problem/8782223>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122131 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 02:13:59 +00:00
Bill Wendling
cd080249fc RemoveUnusedCPEntries can change things. Track it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122129 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:53:06 +00:00
Rafael Espindola
1ee03a835e Relax push instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122121 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:01:34 +00:00
Bob Wilson
094dd80ecc Rearrange some Neon multiclasses. No functional changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122119 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:42:58 +00:00
Bob Wilson
3deb45149a Fix result type of Neon floating-point comparisons against zero. 
The result vector elements are always integers.  Radar 8782191.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122112 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:04:33 +00:00
Bob Wilson
3a75b9bc8f Add some missing entries in ARMTargetLowering::getTargetNodeName. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122111 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:04:26 +00:00
Bill Wendling
976ef86689 During local stack slot allocation, the materializeFrameBaseRegister function 
may be called. If the entry block is empty, the insertion point iterator will be
the "end()" value. Calling ->getParent() on it (among others) causes problems.

Modify materializeFrameBaseRegister to take the machine basic block and insert
the frame base register at the beginning of that block. (It's very similar to
what the code does all ready. The only difference is that it will always insert
at the beginning of the entry block instead of after a previous materialization
of the frame base register. I doubt that that matters here.)

<rdar://problem/8782198>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122104 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:09:14 +00:00
Bob Wilson
9bb43e1675 Avoid report_fatal_error in ARM's PrintAsmOperand method. 
The standard error handling in AsmPrinter::EmitInlineAsm handles this much
better, so just use it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122100 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:06:42 +00:00
Nate Begeman
b65c175d32 Add support for matching psign & plendvb to the x86 target 
Remove unnecessary pandn patterns, 'vnot' patfrag looks through bitcasts


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122098 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 22:55:37 +00:00
Jim Grosbach
a3dbd3a244 If The ARM WriteNopData() gets an unaligned byte count to pad out, fill in with 
a partial value. rdar://8782954

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122078 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 19:03:02 +00:00
Jim Grosbach
f0db261e97 Add bits 31-28 to the Thumb2 encoding of TBB/TBH. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122076 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 18:42:56 +00:00
Jim Grosbach
6ec6eeb692 Handle 2 and 4 byte data blob fixup values for ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122075 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 18:39:10 +00:00
Benjamin Kramer
d53f3c864b Pass StringRefs by value, for consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122074 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 18:19:06 +00:00
Rafael Espindola
6024c97ffa Stub out explicit MCELFObjectTargetWriter interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122067 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 17:45:22 +00:00
Rafael Espindola
285b3e5b61 Move createELFObjectWriter to its own header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122064 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 16:59:53 +00:00
Kalle Raiskila
18aa393153 Don't feed 19 bit immediates to ILA. 
Patch (slightly modified) by Visa Putkinen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122052 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 09:36:09 +00:00
Daniel Dunbar
1139d5090a MC/ARM: Use aggressive symbol folding (important for jump tables, for example). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122044 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 06:00:24 +00:00
Daniel Dunbar
b87422778c MC/Mach-O: On second thought, use a custom hook for enabling aggressive 
IsSymbolRefDifferenceFullyResolved, it turns out this does change behavior on
enough cases for x86-32 that I would rather wait a bit on it.
 - In practice, we will want to change this eventually because it only means we
   generate less relocations (it also eliminates the need for the horrible
   '.set' hack that Darwin requires in some places).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122042 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 05:50:29 +00:00
Daniel Dunbar
7b62afac0a MC/Target: Remove HasScatteredSymbols target hook variable, which has been 
superceded and was effectively dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122024 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:06:08 +00:00
Bob Wilson
a1f544b62e Use PairDRegs to implement ConcatVectors. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122017 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:21:08 +00:00
Rafael Espindola
3ee33aa6f9 Make pushq produce signed relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122005 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 22:50:01 +00:00
Wesley Peck
8a28f21379 Fix MBlaze backend call instructions so that arguments passed through registers 
are correctly marked as used. This removes a hack where the call instructions
marked all possible argument registers as used in the tablegen description.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121994 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 19:41:31 +00:00
Jim Grosbach
3efad8fad4 Pseudo-ize the Thumb1 tBfar pattern. rdar://8777974 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121990 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 19:11:16 +00:00
Daniel Dunbar
5d05d9769e MC/Mach-O: Lift some MachObjectWriter arguments into the target specific 
interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121981 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 17:21:02 +00:00
Daniel Dunbar
ae5abd595f MC/Mach-O: Stub out explicit MCMachObjectTargetWriter interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121973 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 16:09:19 +00:00
Daniel Dunbar
297ed28bf9 Fix indentation (per style guide). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121972 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 16:08:43 +00:00
Daniel Dunbar
aa4b7dd13b MC/Mach-O: Move createMachObjectWriter into MCMachObjectWriter.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121971 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 16:08:33 +00:00
Daniel Dunbar
2761fc4270 MC: Move target specific fixup info descriptors to TargetAsmBackend instead of 
the MCCodeEmitter, which seems like a better organization.
 - Also, cleaned up some magic constants while in the area.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121953 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 03:20:06 +00:00
Daniel Dunbar
745dacc91d MC: Make TargetAsmBackend available to the AsmStreamer. 
- Treaty talks on the non-proliferation of MC objects broke down.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121949 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 03:05:59 +00:00
Matt Beaumont-Gay
656b3d22f7 Delete an extra "Imm5 = ", caught by GCC's -Wsequence-point but not by Clang 
(see PR4579).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121939 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 01:34:26 +00:00
Bill Wendling
6baf46dbea Remove fixup_arm_thumb_ldst. The code was never calling the "fixup" stuff for 
it. I.e., it was always an immediate value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121932 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 00:50:33 +00:00
Bill Wendling
5a54516adf Add tSpill and tRestore to the opcodes to replace with tSTRi and tLDRi 
respectively.

It may be a bug that these opcodes are getting this far into machine code
generation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121931 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 00:49:54 +00:00
Bill Wendling
dedec2b89d Add encodings for Thumb1 Spill and Restore pseudos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121929 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 00:38:41 +00:00
Jim Grosbach
3e333637f1 Thumb1 had two patterns for the same load-from-constant-pool instruction. 
Canonicalize on tLDRpci and remove tLDRcp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121920 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 23:52:36 +00:00
Eric Christopher
836c6245ad Don't handle -arm-long-calls in fast isel for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121919 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 23:47:29 +00:00
Bill Wendling
7a905a82f7 If we're changing the frame register to a physical register other than SP, we 
need to use tLDRi and tSTRi instead of tLDRspi and tSTRspi respectively.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121915 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 23:32:27 +00:00
Bill Wendling
dc3813750e Whitespace cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121914 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 23:31:24 +00:00
Evan Cheng
f735f2da6e Only rr forms of ADD*_DB are commutable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121908 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 22:57:36 +00:00
Bob Wilson
0406356cd4 Add Neon VCVT instructions for f32 <-> f16 conversions. 
Clang is now providing intrinsics for these and so we need to support them
in the backend.  Radar 8068427.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121902 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 22:14:12 +00:00
Wesley Peck
dc9d87a9bb Lower the MBlaze target specific calling conventions for "interrupt_handler" 
and "save_volatiles" correctly. This completes the custom calling convention
functionality changes for the MBlaze backend that were started in 121888.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121891 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 20:27:28 +00:00
Wesley Peck
d5f4bc2c33 Add some special purpose register definitions to the MBlaze backend and cleanup some old, unused floating point register definitions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121882 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 19:35:36 +00:00
Jim Grosbach
d481110ef7 Tweak a few pseudo-inst pattern base classes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121878 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 19:03:16 +00:00
Jim Grosbach
41b1d4e472 The new t2LEApcrel* pseudo instructions need the size specified. 
rdar://8768390

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121876 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 18:48:45 +00:00
Owen Anderson
47dbd429da Implement cleanups suggested by Daniel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121875 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 18:48:27 +00:00
Bill Wendling
22447ae54b Add fixups for Thumb LDR/STR instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121858 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 08:51:02 +00:00
Chris Lattner
9448184b99 add another overflow idiom 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121854 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 07:28:58 +00:00
Chris Lattner
08859ffa63 add a note about overflow idiom recognition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121853 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 07:25:55 +00:00
Chris Lattner
ef17f08dbc add a shift/imul missed optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121850 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 07:10:43 +00:00
Chris Lattner
2fc36e19b1 add a note about a SPEC hack that gcc mainline does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121849 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 06:38:24 +00:00
Bill Wendling
bc4224bc6b Reapply r121808 now that the missing patterns have been supplied. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121820 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 01:03:19 +00:00
Bill Wendling
415af3452e Add some missing patterns now that tLDRB and tLDRH are split into reg and 
immediate versions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121819 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 00:58:57 +00:00
Bill Wendling
7d1d8db54a Revert r121808 until I can fix the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121815 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 00:04:00 +00:00
Jim Grosbach
9d04dc52a5 thumb adr fixup needs alignment just like the t2 version. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121812 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 23:47:35 +00:00
Bill Wendling
345cdb6475 Comments and cleaning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121809 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 23:42:48 +00:00
Bill Wendling
2af0fd3fee Make the ISel selections for LDR/STR the same as before the LDRr/LDRi split. In 
particular, we want

   ldr r2, [r3]

to be equivalent to

   ldr r2, [r3, #0]

and not

   ldr r2, [r3, r0]



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121808 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 23:40:49 +00:00
Jim Grosbach
d40963c406 Add support for MC-ized encoding of tLEApcrel and tLEApcrelJT. rdar://8755755 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121798 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 22:28:03 +00:00
Bill Wendling
ee2b350d83 Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121797 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 22:26:49 +00:00