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88e37ae366
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322 Commits

Author SHA1 Message Date
Dale Johannesen
88e37ae366 rewrite of constant islands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34523 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 05:02:36 +00:00
Evan Cheng
04321f70f5 Added -march=thumb; removed -enable-thumb. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34521 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 03:14:31 +00:00
Evan Cheng
ead7590581 Add option to turn on register scavenger; By default, spills kills the register being stored. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34514 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 01:09:11 +00:00
Jim Laskey
2ad9f17fee Simplify lowering and selection of exception ops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34488 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 14:56:36 +00:00
Jim Laskey
62819f3144 Support to provide exception and selector registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34482 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:54:50 +00:00
Evan Cheng
b371f457b0 Re-apply my liveintervalanalysis changes. Now with PR1207 fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34428 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-19 21:49:54 +00:00
Reid Spencer
a284cbf667 For PR1207: 
Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34399 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-19 03:20:00 +00:00
Evan Cheng
eceada6728 Added getReservedRegs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34376 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-17 11:06:00 +00:00
Chris Lattner
d2b7cec527 Generalize TargetData strings, to support more interesting forms of data. 
Patch by Scott Michel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34266 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-14 05:52:17 +00:00
Lauro Ramos Venancio
7501605988 Add space between // and the comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34246 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-13 20:06:15 +00:00
Lauro Ramos Venancio
3630e78db9 Add ABI information to ARM subtarget. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34245 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-13 19:52:28 +00:00
Lauro Ramos Venancio
876eaf1135 According to ARM EABI, 8-bytes function arguments must be 8-bytes aligned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34241 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-13 14:07:13 +00:00
Evan Cheng
e03cff6812 These vectors are frequently large. Use std::vector instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34109 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-09 23:59:14 +00:00
Evan Cheng
c99ef085b9 Add reference counting to constantpool entries. Delete the unused ones. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34105 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-09 20:54:44 +00:00
Evan Cheng
bd8251a9a6 isLowRegister() expects input is a physical register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34013 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-07 21:44:33 +00:00
Evan Cheng
403e4a4725 Rename. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34011 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-07 21:24:09 +00:00
Evan Cheng
5ebd10e5ac If sp offset will be materialized in a register. Clear the offset field of str / ldr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34010 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-07 21:19:58 +00:00
Evan Cheng
8fdbe560a0 Get rid of references to iostream. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34009 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-07 21:18:32 +00:00
Evan Cheng
2ef02a220e New entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34000 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-07 09:22:15 +00:00
Evan Cheng
8bed6c968f In thumb mode, R3 is reserved, but it can be live in to the function. If 
that is the case, whenever we use it as a scratch register, save it to R12
first and then restore it after the use.
This is a temporary and truly horrible workaround!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33999 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-07 09:17:36 +00:00
Evan Cheng
1f253d6e97 Update 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33998 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-07 08:37:57 +00:00
Evan Cheng
7142f8755a - If fp (r7) is used to reference stack objects, use [r, r] address mode. 
- If there is a dynamic alloca, in the epilogue, restore the value of sp
  using r7 - offset.
- Other bug fixes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33997 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-07 08:37:31 +00:00
Evan Cheng
a01faf4a7a eliminateFrameIndex() is even more complicated if frame ptr is used instead of SP when there are dynamic alloca's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33975 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-07 02:44:23 +00:00
Evan Cheng
8e59ea998f Spill / restore should avoid modifying the condition register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33971 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-07 00:06:56 +00:00
Evan Cheng
8c1a73ad3f Select add FI, c correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33960 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-06 09:11:20 +00:00
Evan Cheng
40984d7449 foldMemoryOperand() cannot fold tMOVrr sp into load / store in thumb mode. tLDRspi / tSTRspi cannot target / store high registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33958 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-06 06:13:29 +00:00
Evan Cheng
88b633165a eliminateFrameIndex() bug when frame pointer is used as base register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33945 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-06 00:23:31 +00:00
Evan Cheng
ad0e465889 - Store val, [sp, c] must be selected to tSTRsp. 
- If c does not fit in the offset field, materialize sp + c into a register
  using tADDhirr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33944 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-06 00:22:06 +00:00
Evan Cheng
b38cba928e ARM callseq_end should have a input flag operand so it would be scheduled right after the call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33832 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-03 09:11:58 +00:00
Evan Cheng
fc4034259f Fix comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33831 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-03 08:53:01 +00:00
Evan Cheng
bd5d3dbdbe - Branch max. displacement calculation bug. 
- Add debugging info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33811 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-03 02:08:34 +00:00
Lauro Ramos Venancio
4642ca6589 bugfix: SP isn't resetted when function has FP and there is no spills. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33800 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 23:08:40 +00:00
Evan Cheng
a21335dd76 Another thumb large stack offset codegen bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33795 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 21:08:39 +00:00
Evan Cheng
05cc424082 Use MBB.empty() instead of MBB.size() for speed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33789 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 19:09:19 +00:00
Evan Cheng
1dd6a606ad Watch out for empty BB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33788 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 18:49:02 +00:00
Evan Cheng
f48ae3353e Ugh. Only meant to do this in thumb mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33780 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 08:58:48 +00:00
Chris Lattner
2d1222c060 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33778 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 04:36:46 +00:00
Evan Cheng
9a2ef9509e Fix a bug in getARMCMP (which translate CondCode to ARM specific CC) when the RHS is a constant. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33775 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 01:53:26 +00:00
Evan Cheng
b0636156ef Thumb does not have clz. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33773 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 23:34:03 +00:00
Lauro Ramos Venancio
c33f674ca3 Define PrivateGlobalPrefix for ARM Linux. (Fix CodeGen/ARM/large_stack.ll) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33763 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 21:43:53 +00:00
Evan Cheng
556f33c6e2 Pasto. Lots of it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33762 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 20:44:52 +00:00
Lauro Ramos Venancio
6f46e59d2a Fix .thumb_func directive on linux. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33759 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 18:25:34 +00:00
Evan Cheng
b43216ee4a - Off by one bugs in maximum displacement calculation / testing. 
- In thumb mode, a new constpool island BB size should be 4 + 2 to
  compensate for the potential padding due to alignment requirement.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33753 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 10:16:15 +00:00
Evan Cheng
e0c2b6b9a8 .set pc relative displacement bug: label should be moved down one instruction 
to just before the add r1, pc:

Before:
        .set PCRELV0, (LJTI1_0_0-(LPCRELL0+4))
LPCRELL0:
        mov r1, #PCRELV0
        add r1, pc

Now:
        .set PCRELV0, (LJTI1_0_0-(LPCRELL0+4))
        mov r1, #PCRELV0
LPCRELL0:
        add r1, pc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33744 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 03:04:49 +00:00
Evan Cheng
736cefff85 Add a note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33743 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 02:46:20 +00:00
Evan Cheng
9312313a56 Also set alignment of stack-based structs to 4 in thumb mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33741 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 02:18:36 +00:00
Evan Cheng
9d945f78e5 Special epilogue for vararg functions. We cannot do a pop to pc because 
there follows a sp increment for the va register save region. Instead issue
a separate pop to another register, increment sp, and then return:
        pop {r4, r5, r6, r7}
        pop {r3}
        add sp, #3 * 4
        bx r3


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33739 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 01:49:46 +00:00
Evan Cheng
2021abe154 Pessmistically assume the .align 2 before the first constpool entry adds 
two bytes padding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33734 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 01:09:47 +00:00
Evan Cheng
5b49ab9996 Possible JT improvements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33733 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 01:07:48 +00:00
Evan Cheng
3bf12d0460 Don't emit unnecessary .align directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33729 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 23:39:39 +00:00