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183 Commits

Author SHA1 Message Date
Akira Hatanaka
4231c7ea6d Implement byval structure argument passing. The following limitations or 
deficiencies exist:

- Works only if ABI is o32.
- Zero-sized structures cannot be passed.
- There is a lot of redundancy in generated code.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131986 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 19:18:33 +00:00
Akira Hatanaka
b4d8d31e59 Simplify offset calculation of stack frame objects for $gp restore location and 
variable arguments in LowerCall and LowerFormalArguments. This should also fix
the bug in which handling of variable arguments is incorrect when the front-end
optimizes away unused fixed arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131942 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 00:23:52 +00:00
Akira Hatanaka
46da136ec7 Expand f64 FPOW. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131928 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 22:23:58 +00:00
Akira Hatanaka
bdd2ce9741 Fixes related to coding style. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131922 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 21:13:59 +00:00
Akira Hatanaka
69c19f7316 Change StackDirection from StackGrowsUp to StackGrowsDown. 
The following improvements are accomplished as a result of applying this patch:
- Fixed frame objects' offsets (relative to either the virtual frame pointer or
  the stack pointer) are set before instruction selection is completed. There is
  no need to wait until Prologue/Epilogue Insertion is run to set them.
- Calculation of final offsets of fixed frame objects is straightforward. It is
  no longer necessary to assign negative offsets to fixed objects for incoming
  arguments in order to distinguish them from the others.
- Since a fixed object has its relative offset set during instruction
  selection, there is no need to conservatively set its alignment to 4.
- It is no longer necessary to reorder non-fixed frame objects in 
  MipsFrameLowering::adjustMipsStackFrame.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131915 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 20:16:59 +00:00
Akira Hatanaka
43299776d7 Change the order fixed objects are created in MipsTargetLowering::LowerCall in 
preparation for reversing StackDirection.

Fixed objects are created in the following order:  
 1. Incoming arguments passed on stack.
 2. va_arg objects (include both arguments that are passed in registers and
    pointer to the location of the first va_arg argument).
 3. $gp restore slot.
 4. Outgoing arguments passed on stack.
 5. Pointer to alloca'd space.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131767 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 23:22:14 +00:00
Akira Hatanaka
d37776d1c1 In CC_MipsO32, allocate a stack space regardless of whether the argument is 
passed in register or on the stack.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131758 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 21:39:54 +00:00
Akira Hatanaka
17a1e87751 Make $fp and $ra callee-saved registers and let PrologEpilogInserter handle 
saving and restoring them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131745 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 18:39:33 +00:00
Akira Hatanaka
cd0f90f831 Fix bug in which nodes that write to argument registers do not get glued with the JALR node. Patch by Sasa Stankovic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131714 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 02:30:51 +00:00
Akira Hatanaka
d992f6c666 Remove code that creates unnecessary frame objects. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131711 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 01:45:06 +00:00
Akira Hatanaka
a1a7ba8382 Align i64 arguments to 64 bit boundaries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131668 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 20:29:48 +00:00
Akira Hatanaka
95b8ae190e Simplify CC_MipsO32 and merge it with CC_MipsO32_VarArgs. Patch by Sasa Stankovic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131657 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 18:06:05 +00:00
Eli Friedman
fc5d305597 Make the logic for determining function alignment more explicit. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131012 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-06 20:34:06 +00:00
Akira Hatanaka
6b7588e6c4 Prevent instructions using $gp from being placed between a jalr and the instruction that restores the clobbered $gp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130847 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-04 17:54:27 +00:00
Akira Hatanaka
f48eb533d5 Lower BlockAddress node when relocation-model is static. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130131 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-25 17:10:45 +00:00
Akira Hatanaka
4552c9a3b3 Reverse unnecessary changes made in r129606 and r129608. There is no change in functionality. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129612 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 21:51:11 +00:00
Akira Hatanaka
0bf3dfbef6 Fix lines that have incorrect indentation or exceed 80 columns. There is no change in functionality. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129606 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 21:00:26 +00:00
Akira Hatanaka
99a2e98edd Add pass that expands pseudo instructions into target instructions after register allocation. Define pseudos that get expanded into mtc1 or mfc1 instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129594 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 19:52:08 +00:00
Chris Lattner
7a2bdde0a0 Fix a ton of comment typos found by codespell. Patch by 
Luis Felipe Strano Moraes!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 05:18:47 +00:00
Akira Hatanaka
9777e7afd4 Fix handling of functions with internal linkage. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129099 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-07 19:51:44 +00:00
Akira Hatanaka
f49fde2877 Move transformation of JmpLink and related nodes done during instruction selection to Legalize phase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128830 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-04 17:11:07 +00:00
Akira Hatanaka
ad8ffad60a Undo changes mistakenly made in revision 128750. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128751 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-02 00:26:12 +00:00
Akira Hatanaka
dc1652fd31 Insert space before ';' to prevent warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128750 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-02 00:15:58 +00:00
Akira Hatanaka
e2e436a6bc Simplifies logic for printing target flags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128741 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-01 21:41:06 +00:00
Akira Hatanaka
1d6b38d9d3 Added support for FP conditional move instructions and fixed bugs in handling of FP comparisons. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128650 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-31 18:26:17 +00:00
Akira Hatanaka
81bd78b897 fixed typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128574 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-30 21:15:35 +00:00
Chris Lattner
109d6dbe50 silence a conditional assignment -Wuninitialized warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127453 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-11 02:12:51 +00:00
Bruno Cardoso Lopes
954dac0f88 Improve varags handling, with testcases. Patch by Sasa Stankovic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127349 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-09 19:22:22 +00:00
Bruno Cardoso Lopes
38b5e86b9c Improve div/rem node handling on mips. Patch by Akira Hatanaka 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127034 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-04 21:03:24 +00:00
Bruno Cardoso Lopes
c42fb5f81c Rewrite and simplify o32 vaarg passing, no functional changes. Patch by Sasa Stankovic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127029 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-04 20:27:44 +00:00
Bruno Cardoso Lopes
ca8a2aa921 Lowers block address. Currently asserts when relocation model is not PIC. Patch by Akira Hatanaka 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127027 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-04 20:01:52 +00:00
Bruno Cardoso Lopes
5d6fb5db90 Expands FCOS and FSIN nodes when type is f64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127017 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-04 18:54:14 +00:00
Bruno Cardoso Lopes
8e826e69db Fix a lot of o32 CC issues and add a bunch of tests. Patch by Akira Hatanaka with some small modifications by me. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125292 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-10 18:05:10 +00:00
Bruno Cardoso Lopes
6b9028251c Negative zero is not legal on mips. Patch by Sasa Stankovic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123766 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-18 19:41:41 +00:00
Bruno Cardoso Lopes
b1fce0a016 Handle (i32,i32) => f64 in a cleaner way. Patch by Sasa Stankovic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123763 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-18 19:38:25 +00:00
Bruno Cardoso Lopes
8be7611245 Add support for mips32 madd and msub instructions. Patch by Akira Hatanaka 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123760 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-18 19:29:17 +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
Bruno Cardoso Lopes
908b6ddad6 Add ROTR and ROTRV mips32 instructions. Patch by Akira Hatanaka 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121377 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 17:32:30 +00:00
Bruno Cardoso Lopes
bd3af09cef Remove target specific node MipsISD::CMov, which is not used because all conditional moves are directly matched using tablegen patterns. If there's a need in the future, we can introduce it again 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121164 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 19:04:14 +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
Duncan Sands
1e96bab329 In the calling convention logic, ValVT is always a legal type, 
and as such can be represented by an MVT - the more complicated
EVT is not needed.  Use MVT for ValVT everywhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118245 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-04 10:49:57 +00:00
Duncan Sands
1440e8b918 Inside the calling convention logic LocVT is always a simple 
value type, so there is no point in passing it around using
an EVT.  Use the simpler MVT everywhere.  Rather than trying
to propagate this information maximally in all the code that
using the calling convention stuff, I chose to do a mainly
low impact change instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118167 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-03 11:35:31 +00:00
John Thompson
44ab89eb37 Inline asm multiple alternative constraints development phase 2 - improved basic logic, added initial platform support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117667 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-29 17:29:13 +00:00
Chris Lattner
8026a9d3ee eliminate some uses of the getStore overload. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114453 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-21 17:50:43 +00:00
Chris Lattner
d1c24ed81c convert the targets off the non-MachinePointerInfo of getLoad. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114410 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-21 06:44:06 +00:00
Bruno Cardoso Lopes
46773793cb Fix PR7174, a couple o Mips fixes: 
- Fix a typo for PIC check during jmp table lowering
- Also fix the "first jump table basic block is not
considered only reachable by fall through" problem, use this
ad-hoc solution until I come up with something better.

Patch by stetorvs@gmail.com



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108820 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 08:37:04 +00:00
Bruno Cardoso Lopes
29e9daa750 Fix Mips PR7473. Patch by stetorvs@gmail.com 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108816 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 07:58:51 +00:00
Dan Gohman
c9403659a9 Split the SDValue out of OutputArg so that SelectionDAG-independent 
code can do calling-convention queries. This obviates OutputArgReg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107786 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-07 15:54:55 +00:00
Devang Patel
0d881dabc1 Propagate debug loc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107710 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 22:08:15 +00:00
Dan Gohman
14152b480d Reapply r107655 with fixes; insert the pseudo instruction into 
the block before calling the expansion hook. And don't
put EFLAGS in a mbb's live-in list twice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107691 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 20:24:04 +00:00