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Author SHA1 Message Date
Jim Grosbach
b58f498f75 Add register-reuse to frame-index register scavenging. When a target uses 
a virtual register to eliminate a frame index, it can return that register
and the constant stored there to PEI to track. When scavenging to allocate
for those registers, PEI then tracks the last-used register and value, and
if it is still available and matches the value for the next index, reuses
the existing value rather and removes the re-materialization instructions.
Fancier tracking and adjustment of scavenger allocations to keep more
values live for longer is possible, but not yet implemented and would likely
be better done via a different, less special-purpose, approach to the
problem.

eliminateFrameIndex() is modified so the target implementations can return
the registers they wish to be tracked for reuse.

ARM Thumb1 implements and utilizes the new mechanism. All other targets are
simply modified to adjust for the changed eliminateFrameIndex() prototype.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83467 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 17:12:56 +00:00
Devang Patel
7f93f4d66c Do not assume that the module is set. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83462 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 16:37:55 +00:00
Torok Edwin
127445818e Add a comment explaining how DenseMap::insert works, because it is not 
intuitive.
It does NOT update the value if the key is already in the map,
it also returns false if the key is already in the map, regardless
if the value matched.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83458 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 09:23:56 +00:00
Torok Edwin
4de86fe0d7 Add PR to this FIXME, looks like I didn't commit this change after all. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83457 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 09:22:55 +00:00
Duncan Sands
83ed76869e Make getPointerTo return a const PointerType* rather than 
an unqualified PointerType* because it seems more correct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83454 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 07:35:19 +00:00
Dan Gohman
ad29b756e0 INTRINSIC_W_CHAIN and INTRINSIC_VOID do not use MemSDNode. They 
may access memory, but they don't carry a MachineMemOperand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83449 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 03:00:18 +00:00
Eric Christopher
00d67db384 Add FreeInst to the "is a call" check for Insts that are calls, but 
not intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83441 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 00:54:08 +00:00
Dan Gohman
bd31b173d2 Fix this comment. The loop header is the loop entry point. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83437 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 00:33:10 +00:00
Anton Korobeynikov
249fb339ad Add PseudoSourceValues for constpool stuff on ELF (Darwin should use something similar) 
and register spills.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83435 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 00:06:35 +00:00
Eric Christopher
0704300d88 While we still have a MallocInst treat it as a call like any other 
for inlining.

When MallocInst goes away this code will be subsumed as part of
calls and work just fine...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83434 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-07 00:02:18 +00:00
Kevin Enderby
a7ba3a81c0 Added bits of the ARM target assembler to llvm-mc to parse some load instruction 
operands.  Some parsing of arm memory operands for preindexing and postindexing
forms including with register controled shifts.  This is a work in progress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83424 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 22:26:42 +00:00
Bob Wilson
3bf12ab860 Add codegen support for NEON vld2 operations on quad registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83422 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 22:01:59 +00:00
Bob Wilson
349d82d400 Use copyRegToReg hook to copy registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83421 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 22:01:15 +00:00
Jeffrey Yasskin
0b22873adc r83391 was completely broken since Twines keep references to their inputs, and 
some of the inputs were temporaries.  Here's a real fix for the miscompilation.
Thanks to sabre for pointing out the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83417 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 21:45:26 +00:00
Bob Wilson
ec1d81c389 Update NEON struct names to match llvm-gcc changes. 
(This is not required for correctness but might help with sanity.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83415 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 21:16:19 +00:00
Bob Wilson
a3e8bf8412 Fix a comment typo. 
Patch by Johnny Chen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83407 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 20:18:46 +00:00
Nicolas Geoffray
35b305863a Bugfix for the CommaSeparated option. The original code was adding the whole 
string at the end of the list, instead of the last comma-separated string.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83405 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 19:55:53 +00:00
Ted Kremenek
3351085d84 Update CMake file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83404 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 19:45:38 +00:00
Jeffrey Yasskin
0f2ba783d9 Fix illegal cross-type aliasing. Found by baldrick on a newer gcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83401 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 19:06:16 +00:00
Devang Patel
60b35bd8ec Add support to handle debug info attached to an instruction. 
This is not yet enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83400 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 18:37:31 +00:00
Dan Gohman
82a47e9118 Make LLVMContext's pImpl member const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83393 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 17:43:57 +00:00
Dan Gohman
e3cc3f3c84 Instead of printing unnecessary basic block labels as labels in 
verbose-asm mode, print comments instead. This eliminates a non-comment
difference between verbose-asm mode and non-verbose-asm mode.

Also, factor out the relevant code out of all the targets and into
target-independent code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83392 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 17:38:38 +00:00
Jeffrey Yasskin
6cf4963cdc Fix PR5112, a miscompilation on gcc-4.0.3. Patch by Collin Winter! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83391 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 17:25:50 +00:00
Chris Lattner
7963e15951 remove predicate simplifier, it never got the last bugs beaten 
out of it, and jump threading, condprop and gvn are now getting
most of the benefit.  This was approved by Nicholas and Nicolas.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83390 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 16:59:46 +00:00
Richard Osborne
f9416ea0cd Remove xs1b predicate since it is no longer needed to differentiate betweem 
xs1a and xs1b.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83383 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 16:17:57 +00:00
Richard Osborne
34bee6da7a Remove xs1a subtarget. xs1a is a preproduction device used in 
early development boards which is no longer supported in the
XMOS toolchain.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83381 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 16:01:09 +00:00
Richard Osborne
acfbb92824 Default to the xs1b subtarget 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83380 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 15:41:52 +00:00
Duncan Sands
ac53a0b272 Introduce and use convenience methods for getting pointer types 
where the element is of a basic builtin type.  For example, to get
an i8* use getInt8PtrTy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83379 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 15:40:36 +00:00
Jim Grosbach
6e214805b1 grammar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83378 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 15:03:44 +00:00
Devang Patel
8a4087ddc7 Fix cut-n-pasto. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83367 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 03:15:38 +00:00
Devang Patel
02c04237d0 Update processDebugLoc() to handle requests to process debug info, before and after emitting instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83364 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 03:04:58 +00:00
Devang Patel
af0e272683 Update processDebugLoc() so that it can be used to process debug info before and after printing an instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83363 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 02:19:11 +00:00
Devang Patel
89703cf838 Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83362 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 02:01:32 +00:00
Devang Patel
0d20ac8d17 Add utility routine to set begin and end labels for DbgScopes. 
This will be used by processDebugLoc().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83361 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 01:50:42 +00:00
Devang Patel
b39566d719 Remove unintentional function decl. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83356 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 01:31:35 +00:00
Devang Patel
e717faa467 Add utility routine to collect variable debug info. This is not yet used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83355 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 01:26:37 +00:00
Jeffrey Yasskin
ea5ed00ea3 Fix http://llvm.org/PR5116 by rolling back r60822. This passes `make unittests 
check-lit` on both x86-64 Linux and x86-32 Darwin.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83353 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 00:35:55 +00:00
Devang Patel
454e957979 Set default location for the function if it is not already set. 
This code is not  yet enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83349 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 00:09:08 +00:00
Devang Patel
6f3dc920b0 Existence of a compile unit for input source file is a good indicator to check debug info's presence in a module. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83348 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-06 00:03:14 +00:00
Devang Patel
ffd9c3dd4a If subprogram die is not available then construct new one. 
This can happen if debug info is processed lazily.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83347 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 23:59:00 +00:00
Jeffrey Yasskin
4ece4e26f2 Add a test for http://llvm.org/PR3043. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83346 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 23:51:08 +00:00
Devang Patel
fd07cf56cd Adjust context for the global variables that are not at file scope, e.g. 
void foo() { static int bar = 42; }
Here, foo's DIE is parent of bar's DIE.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83344 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 23:40:42 +00:00
Devang Patel
b71a16d10d Set address while constructing DIE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83343 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 23:22:08 +00:00
Edward O'Callaghan
a2c7535e64 CMake misses a check for sbrk on NetBSD. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83341 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 23:05:32 +00:00
Evan Phoenix
1614e50d9f Extend ConstantFolding to understand signed overflow variants 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83338 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 22:53:52 +00:00
Jim Grosbach
540b05d227 In Thumb1, the register scavenger is not always able to use an emergency 
spill slot. When frame references are via the frame pointer, they will be
negative, but Thumb1 load/store instructions only allow positive immediate
offsets. Instead, Thumb1 will spill to R12.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83336 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 22:30:23 +00:00
Evan Phoenix
303bf73ebd First test commit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83334 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 22:29:11 +00:00
Torok Edwin
85c005af0d Don't treat malloc calls with non-matching prototype as malloc. 
Fixes second part of PR5130, miscompilation in FreeBSD kernel, where malloc takes 3 params,
and *does* initialize memory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83324 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 21:15:43 +00:00
Edward O'Callaghan
aa5c1b7f93 No newline at end of files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83318 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 18:43:19 +00:00
Devang Patel
f84548db63 Gracefully handle various scopes while recording source line info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83317 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 18:03:19 +00:00