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246 Commits

Author SHA1 Message Date
Nate Begeman
dc46021355 Finish off bug 680, allowing targets to custom lower frame and return 
address nodes.

llvm-svn: 33636
 2007-01-29 22:58:52 +00:00
Evan Cheng
903e98b477 Comment. 
llvm-svn: 33633
 2007-01-29 22:23:02 +00:00
Evan Cheng
fe602cabee Remember if LR register has been spilled in this function. 
llvm-svn: 33632
 2007-01-29 22:22:24 +00:00
Anton Korobeynikov
611d5e2eda Propagate changes from my local tree. This patch includes: 
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.
llvm-svn: 33597
 2007-01-28 13:31:35 +00:00
Evan Cheng
e0dc07a83f New entry. 
llvm-svn: 33569
 2007-01-27 02:33:22 +00:00
Evan Cheng
4618d3131c Thumb jumptable support. 
llvm-svn: 33568
 2007-01-27 02:29:45 +00:00
Evan Cheng
9805b66063 Thumb add / sub with carry. 
llvm-svn: 33562
 2007-01-27 00:07:15 +00:00
Lauro Ramos Venancio
f1f9f05230 Some asm directives fixes for ELF. 
Now we can compile llvm-gcc on arm-linux-gnueabi!

llvm-svn: 33558
 2007-01-26 23:24:43 +00:00
Evan Cheng
55455f0532 Represent tADDspi and tSUBspi as two-address instructions. 
llvm-svn: 33551
 2007-01-26 21:33:19 +00:00
Jim Laskey
64f4242072 Change the MachineDebugInfo to MachineModuleInfo to better reflect usage 
for debugging and exception handling.

llvm-svn: 33550
 2007-01-26 21:22:28 +00:00
Lauro Ramos Venancio
762787bed7 Fix Data16bitsDirective for ELF. 
llvm-svn: 33549
 2007-01-26 21:20:45 +00:00
Evan Cheng
2b4f267d57 Conditional branch being fixed up is not the last MI in the BB, there is a 
unconditional branch following it. Simply invert the condition and swap
destinations if the conditional branch can reach the destination of the
unconditional branch:
beq L1
b   L2
=>
bne L2
b   L1

llvm-svn: 33548
 2007-01-26 20:38:26 +00:00
Lauro Ramos Venancio
ea815a6137 If the constant pool value is a extern weak symbol, emit the weak reference. 
llvm-svn: 33543
 2007-01-26 19:51:32 +00:00
Evan Cheng
d0c39ef1ca extload -> zextload 
llvm-svn: 33542
 2007-01-26 19:13:16 +00:00
Jim Laskey
23ed7d2625 Make LABEL a builtin opcode. 
llvm-svn: 33537
 2007-01-26 14:34:52 +00:00
Evan Cheng
c81bceda82 SplitBlockBeforeInstr() insert a unconditional branch to the next BB. This 
is unnecessary when we are fixing up a conditional branch since we will be
adding a unconditional branch to the destination of the original branch.

llvm-svn: 33517
 2007-01-26 02:02:39 +00:00
Evan Cheng
c5a454b111 Need to scan the function for branches even if there aren't any constants. 
llvm-svn: 33515
 2007-01-26 01:04:44 +00:00
Evan Cheng
6a46a78547 Forgot to update this. 
llvm-svn: 33512
 2007-01-25 23:31:04 +00:00
Evan Cheng
a229bc12be Add comment, fix typo, reduce memory usage, etc. 
llvm-svn: 33510
 2007-01-25 23:18:59 +00:00
Evan Cheng
a47f2cc065 I am an idiot. 
llvm-svn: 33509
 2007-01-25 23:18:16 +00:00
Lauro Ramos Venancio
a3788dc56b Fix elf object definition. 
llvm-svn: 33502
 2007-01-25 20:11:04 +00:00
Evan Cheng
7dccb7be86 Doh. Skip JT branches. 
llvm-svn: 33501
 2007-01-25 19:43:52 +00:00
Evan Cheng
d7c809c7be Added (preliminary) branch shortening capability to constantpool island pass. 
llvm-svn: 33497
 2007-01-25 03:12:46 +00:00
Evan Cheng
9d937d1065 Getting rid uses of evil std::set<> 
llvm-svn: 33496
 2007-01-25 03:07:27 +00:00
Evan Cheng
c6db78ab84 Use PC relative ldr to load from a constantpool in Thumb mode. 
llvm-svn: 33484
 2007-01-24 08:53:17 +00:00
Evan Cheng
1630c86beb Allow [ fi#c, imm ] as ARM load / store addresses. 
llvm-svn: 33474
 2007-01-24 02:45:25 +00:00
Evan Cheng
fa613cdd06 Various Thumb mode load / store isel bug fixes. 
llvm-svn: 33472
 2007-01-24 02:21:22 +00:00
Evan Cheng
5f947e4e2f - Reorg Thumb load / store instructions. Combine each rr and ri pair of 
instructions into one (e.g. tLDRrr, tLDRri -> tLDR).
- Thumb ldrsb and ldrsh only have the [reg, reg] address format. If the
  address is not an add, materialize a 0 immediate into a register and use
  it as the offset field.

llvm-svn: 33470
 2007-01-23 22:59:13 +00:00
Evan Cheng
dc97533dd3 Darwin HiddenDirective is .private_extern. 
llvm-svn: 33465
 2007-01-23 19:06:03 +00:00
Evan Cheng
b6a4a7f72a PEI is now responsible for adding MaxCallFrameSize to frame size and align the stack. Each target can further adjust the frame size if necessary. 
llvm-svn: 33460
 2007-01-23 09:38:11 +00:00
Evan Cheng
d9d93832b0 hasFP() is now a virtual method of MRegisterInfo. 
llvm-svn: 33455
 2007-01-23 00:57:47 +00:00
Evan Cheng
25584afca7 ARM AAPCS abi (Linux, etc.) requires 8-byte double / long alignment; Mac 
requires 4-bytes alignment.

llvm-svn: 33448
 2007-01-22 23:13:01 +00:00
Evan Cheng
b55dabdc80 Double and Long preferred alignment is 4 for Darwin, 8 for Linux. 
llvm-svn: 33440
 2007-01-22 21:24:13 +00:00
Evan Cheng
30ef170ddf Use bl to call Thumb fuctions directly. 
llvm-svn: 33433
 2007-01-22 19:40:10 +00:00
Evan Cheng
6271410520 Round up stack to multiple of alignment only if it's a leaf function without alloca. 
llvm-svn: 33401
 2007-01-20 10:22:33 +00:00
Evan Cheng
5ea6a8d9e4 Prologue and epilogue bugs for non-Darwin targets. 
llvm-svn: 33390
 2007-01-20 03:24:07 +00:00
Evan Cheng
a6803554ab Clean up ARM PEI code. 
llvm-svn: 33389
 2007-01-20 02:09:25 +00:00
Evan Cheng
5d0be572b5 Code clean up. Use def : pat instead of defining new instructions. 
llvm-svn: 33368
 2007-01-19 20:27:35 +00:00
Evan Cheng
51292f4863 isDarwin -> isTargetDarwin 
llvm-svn: 33366
 2007-01-19 19:28:01 +00:00
Evan Cheng
99725bd310 Restructure code a bit to make use of continue (simplifying things). Generalize 
the .zerofill directive emission to not be darwin-specific.

llvm-svn: 33365
 2007-01-19 19:25:36 +00:00
Evan Cheng
025816f18c Darwin doesn't support .bss, but it does have .zerofill 
llvm-svn: 33364
 2007-01-19 19:23:47 +00:00
Evan Cheng
b1a4190523 Introduce TargetType's ELF and Darwin. 
llvm-svn: 33363
 2007-01-19 19:22:40 +00:00
Evan Cheng
9203bd4339 Modify emission of jump tables on darwin to emit an extra "l" label that 
delimits the boundaries of jump tables.  This lets the linker's dead code
stripping optimization do a better job.

llvm-svn: 33362
 2007-01-19 18:59:56 +00:00
Lauro Ramos Venancio
f53f62b91d Fix section definition. 
llvm-svn: 33359
 2007-01-19 17:33:22 +00:00
Evan Cheng
c6e1d453d3 ARM backend contribution from Apple. 
llvm-svn: 33353
 2007-01-19 07:51:42 +00:00
Lauro Ramos Venancio
14cf9f2c03 Don't add or sub zero to sp. 
llvm-svn: 33142
 2007-01-12 20:52:27 +00:00
Lauro Ramos Venancio
97e120a71c Build constants using instructions mov/orr or mvn/eor. 
llvm-svn: 33141
 2007-01-12 20:35:49 +00:00
Lauro Ramos Venancio
078b85bdaa Expand SELECT (f32/f64) and FCOPYSIGN (f32/f64). 
llvm-svn: 32870
 2007-01-04 14:01:38 +00:00
Evan Cheng
bd6a333b52 Fix naming inconsistency. 
llvm-svn: 32823
 2007-01-02 21:33:40 +00:00
Rafael Espindola
d1baea3471 implement missing compares 
patch by Lauro
bug fixed by me

llvm-svn: 32795
 2006-12-31 18:52:39 +00:00