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19820 Commits

Author SHA1 Message Date
Reid Spencer
ed3fa8552a Fix a typo/thinko. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40599 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 19:53:57 +00:00
Dan Gohman
be444ed6db Fix a bug in getCopyFromParts turned up in the testcase for PR1132. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40598 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 19:09:17 +00:00
Owen Anderson
45c8388e2a Use more caching when computing non-local dependence. This makes bzip2 not 
use up the entire 32-bit address space.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40596 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 17:29:24 +00:00
Owen Anderson
4f9ba7c40c Fix a bug caused by indiscriminantly asking for the dominators of a predecessor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40595 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 16:57:08 +00:00
Dan Gohman
825811dc83 Use tabs more consistently in assembler pseudo-ops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40594 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 15:08:02 +00:00
Dan Gohman
286d56935c Print a space between the comment character and the basic block name, 
for prettiness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40593 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 15:06:25 +00:00
Dan Gohman
fb71d38247 Fix the comment for getClosestTargetForJIT to reflect the fact that 
it does not have a Module parameter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40590 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 14:58:59 +00:00
Dan Gohman
f452207d20 More explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40589 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 14:51:59 +00:00
Dan Gohman
209ee187c9 Fix pastos in comments for doFinalization functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40588 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 14:51:13 +00:00
Evan Cheng
66ffe6be0c Vector fneg must be expanded into fsub -0.0, X. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40586 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 07:51:22 +00:00
Christopher Lamb
2dc6dc619c Change the x86 backend to use extract_subreg for truncation operations. Passes DejaGnu, SingleSource and MultiSource. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40578 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-29 01:24:57 +00:00
Christopher Lamb
f9b90ea955 Add register info needed to use subreg sets on X86. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40572 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-28 19:03:30 +00:00
Devang Patel
19fe8f907e Add facility to dump pass manager structure 
to make it easier to understand failure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40567 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 20:06:09 +00:00
Duncan Sands
b116fac90f Trampoline codegen support for X86-32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40566 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 20:02:49 +00:00
Devang Patel
c61ce1ad09 Fix edge cases in handling basic block split. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40564 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 19:13:43 +00:00
Devang Patel
29381fb7cd Use SmallPtrSet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40560 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 18:34:27 +00:00
Chuck Rose III
936baaa5ae VStudio compiler errors and placing Function*->ExFunc map under ManagedStatic control. 
This commit fixes two things.  One is a pair of VStudio compiler errors stemming from variables
which defined within the for loop statement and also within the body of the for loop.  I fixed these 
by renaming one of the two variables.  Additionally, I've made the Function*->ExFunc map in 
ExternalFunctions.cpp a ManagedStatic object, so that cleanup will be done on llvm_shutdown.  In repeated
uses of the interpreter, where the same Function* address may get used for completely differnet functions,
this was causing a crash.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40558 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 18:26:35 +00:00
Owen Anderson
e992a56ae9 Allow SmallPtrSet to hold pointers to const data. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40556 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 18:07:02 +00:00
Dan Gohman
d300622eba Re-apply 40504, but with a fix for the segfault it caused in oggenc: 
Make the alignedload and alignedstore patterns always require 16-byte
alignment. This way when they are used in the "Fs" instructions, in which
a vector instruction is used for a scalar purpose, they can still require
the full vector alignment. And add a regression test for this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40555 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 17:16:43 +00:00
Duncan Sands
9d3e79107d It seems logical that InReg should be incompatible 
with StructReturn and ByVal, so make it so.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40554 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 16:45:18 +00:00
Duncan Sands
fdef00f1f7 As the number of parameter attributes increases, 
Verifier::visitFunction is suffering a combinatorial
explosion due to the number of mutually incompatible
attributes.  This patch tidies the whole thing up
using attribute masks.  While there I fixed some
small bugs: (1) the ByVal attribute tests cast a
type to a pointer type, which can fail.  Yes, the
fact it is of a pointer type is checked before,
but a failing check does not cause the program
to exit, it continues on outputting further errors;
(2) Nothing was checking that an sret attribute is
on the first parameter; (3) nothing was checking that
a function for which isStructReturn() is true has a
parameter with the sret attribute and vice-versa (I
don't think it is possible for this to go wrong, but
it seems right to check it).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40553 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 15:09:54 +00:00
Duncan Sands
36397f5034 Support for trampolines, except for X86 codegen which is 
still under discussion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40549 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 12:58:54 +00:00
Christopher Lamb
ada779fb11 Move subreg lowering pass to be right after regalloc, per feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40548 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 07:36:14 +00:00
Evan Cheng
3e22947d9a Reverting 40504 for now. It's breaking oggenc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40547 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 01:37:47 +00:00
Devang Patel
70b36d96b3 Fix thinko. Update return status appropriately. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40546 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 20:21:42 +00:00
Owen Anderson
a377a24771 Fix a bug introduced in my last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40542 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 18:57:04 +00:00
Owen Anderson
45537917ee Fix a couple more bugs in the phi construction by pulling in code that does 
almost the same things from LCSSA.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40540 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 18:26:51 +00:00
Evan Cheng
fcc8793dc8 Make sure epilogue esp adjustment is placed before any terminator and pop instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40538 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 17:45:41 +00:00
Evan Cheng
85dce6cf78 Don't pollute the meaning of isUnpredicatedTerminator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40537 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 17:32:14 +00:00
Evan Cheng
cf5543c47e Minor bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40535 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 17:02:45 +00:00
Dan Gohman
559742c0ea Fix the alias analysis query in DAGCombiner to not add in two 
offsets. The SrcValueOffset values are the real offsets from the
SrcValue base pointers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40534 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 16:14:06 +00:00
Dan Gohman
37f3ee17d2 Move the GET_SIDE_EFFECT_INFO logic from isInstructionTriviallyDead 
to Instruction::mayWriteToMemory, fixing a FIXME, and helping
various places that call mayWriteToMemory directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40533 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 16:06:08 +00:00
Dan Gohman
c2dfd066c0 Remove a bogus return statement, what appears to have been a pasto 
from Relation::contradicts in Relation::incorporate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40531 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 15:29:35 +00:00
Dan Gohman
9adcdf2535 DummyInst's member functions don't need to be virtual. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40530 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 15:25:08 +00:00
Dan Gohman
b6bbe39ff9 In the .loc directive, print the fields as "debug" fields, so they 
don't get decorated as if for immediate fields for instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40529 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 15:24:15 +00:00
Dan Gohman
1704c2f9b9 Fix a whitespace difference between CMPSSrr and CMPSDrr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40528 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 15:11:50 +00:00
Christopher Lamb
bab2474b64 Add a MachineFunction pass, which runs post register allocation, that turns subreg insert/extract instruction into register copies. This ensures correct code gen if the coalescer isn't able to remove all subreg instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40521 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 08:18:32 +00:00
Christopher Lamb
e24f8f1ec9 Teach DAG scheduling how to properly emit subreg insert/extract machine instructions. PR1350 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40520 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 08:12:07 +00:00
Christopher Lamb
08d52071ba Add target independent MachineInstr's to represent subreg insert/extract in MBB's. PR1350 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40518 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 07:48:21 +00:00
Evan Cheng
518143d795 Same goes for constantpool, etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40517 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 07:35:15 +00:00
Christopher Lamb
557c3631d3 Add selection DAG nodes for subreg insert/extract. PR1350 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40516 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 07:34:40 +00:00
Christopher Lamb
6f95014158 Remove subreg index from MachineInstr's and also keep vregs as unsigned when adding operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40514 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 07:00:46 +00:00
Christopher Lamb
844228a631 Fix infinite recursion for when extract_vector_elt is legal. Unfortunately no public targets use this code-path, so no test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40510 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 03:33:13 +00:00
Christopher Lamb
1fcc4b2ba8 Add support for 3 element 32-bit vector ValueTypes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40506 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 01:46:52 +00:00
Dan Gohman
d3283832aa Remove X86ISD::LOAD_PACK and X86ISD::LOAD_UA and associated code from the 
x86 target, replacing them with the new alignment attributes on memory
references.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40504 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 00:31:09 +00:00
Owen Anderson
febc7e3613 Fix what is _hopefully_ the last corner case for loops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40503 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 23:54:42 +00:00
Evan Cheng
a49ed78c27 Mac OS X x86-64 lower 4G address is not available. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40502 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 23:41:36 +00:00
Evan Cheng
ad5e9cac02 Mac OS X should use 0x90 to fill in gaps to satisfy function alignment requirements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40501 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 23:36:05 +00:00
Evan Cheng
73a259a9d1 EmitAlignment() also emits optional fill value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40500 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 23:35:07 +00:00
Evan Cheng
d88ea4d9aa Functions with LinkOnce and weak linkage still need to be aligned. Doh. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40499 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 22:28:16 +00:00
Owen Anderson
9f435740b1 My last commit was not correct for nested loops. Fix it, and add a testcase for it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40498 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 22:19:40 +00:00
Owen Anderson
0d16988690 Fix an infinite loop on 300.twolf. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40497 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 22:03:06 +00:00
Owen Anderson
3dfcf33cf8 Fix a bug in non-local memdep that was causing an infinite loop on 175.vpr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40495 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 21:26:36 +00:00
Owen Anderson
2e3d6b4a27 Fix a bug that was causing GVN to crash on 252.eon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40494 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 21:13:41 +00:00
Owen Anderson
0cd320362e Add basic support for performing whole-function RLE. 
Note: This has not yet been thoroughly tested.  Use at your own risk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40489 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 19:57:03 +00:00
Dan Gohman
b8275a3f6f Don't ignore the return value of AsmPrinter::doInitialization and 
AsmPrinter::doFinalization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40487 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 19:33:14 +00:00
Devang Patel
6899b31422 Add BasicInliner interface. 
This interface allows clients to inline bunch of functions with module
level call graph information.:wq



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40486 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 18:00:25 +00:00
Nick Lewycky
e2b905232f Fix debug info and globals filled with zeros. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40483 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 03:48:45 +00:00
Anton Korobeynikov
59db3ec935 Minor cleanup: 
- Split EH and debug infiormation
 - Make DwarfWriter more verbose in some cases


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40481 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 00:06:28 +00:00
Dan Gohman
dc9b3d0bb5 Add const to CanBeFoldedBy, CheckAndMask, and CheckOrMask. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40480 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 23:00:27 +00:00
Dan Gohman
a394117bc0 Use movaps to load a v4f32 build_vector of all-constant values into a 
register instead of loading each element individually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40478 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 22:55:08 +00:00
Owen Anderson
4beedbd006 Add initial support for non-local memory dependence analysis. 
NOTE: This has only been cursorily tested.  Expected improvements soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40476 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 21:52:37 +00:00
Owen Anderson
bf31b85ea2 Make the copy constructor of SmallPtrSet much faster. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40474 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 21:31:23 +00:00
Anton Korobeynikov
d97b8cd38c Heal EH handling stuff by emitting correct offsets to callee-saved registers. 
Pretty hackish, but code itself is dirty mess, so we won't make anything worse. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40472 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 21:07:39 +00:00
Owen Anderson
1ad2cb7555 Add a GVN pass, using the value numbering code I developed for GVNPRE and the 
load elimination code from RedundantLoadElimination.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40469 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 17:55:58 +00:00
Reid Spencer
bb862c042f Make output match actual condition tested. Thanks, Duncan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40464 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 14:35:44 +00:00
Devang Patel
62e279bbdb Unreachable block is not a root node in post dominator tree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40458 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 01:02:25 +00:00
Owen Anderson
a7f98e2919 Rename a lot of things to change FastDLE to RedundantLoadElimination. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40457 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 00:17:04 +00:00
Owen Anderson
e2a1624da3 Rename FastDLE as RedundantLoadElimination. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40456 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 00:08:38 +00:00
Reid Spencer
d6b42b21eb 1. Make sure we print the Function Value for parameter attribute errors 
2. Fold an if statement into the Assert1 macro call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40455 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-23 23:46:43 +00:00
Reid Spencer
552d6405bf Add better verification of attributes on function types. It is not permitted 
to use sret or inreg on the function. It is equally illegal to use noreturn
or nounwind on a parameter; they only go with the function. This patch
enforces these rules.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40453 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-23 23:09:55 +00:00
Owen Anderson
6b8894bb67 Don't delete volatile loads. Doing so is not safe. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40448 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-23 22:05:54 +00:00
Owen Anderson
ffe40aa97d Add FastDLE, the load-elimination counterpart of FastDSE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40445 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-23 21:48:08 +00:00
Dan Gohman
275769a77a Fix some uses of dyn_cast to be uses of cast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40443 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-23 20:24:29 +00:00
Dan Gohman
63491b2e15 Delete the svn:executable property on these files, which aren't executable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40441 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-23 19:26:08 +00:00
Owen Anderson
d989711844 Fix file header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40440 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-23 18:30:37 +00:00
Chris Lattner
410ce1c49a completely remove a transformation that is unsafe in the face of 
undefs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40439 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-23 17:10:17 +00:00
Bill Wendling
6a20cf0776 Add missing SSE builtins: 
__builtin_ia32_cvtss2si64
    __builtin_ia32_cvttss2si64
    __builtin_ia32_cvtsi642ss
    __builtin_ia32_cvtsd2si64
    __builtin_ia32_cvttsd2si64
    __builtin_ia32_cvtsi642sd


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40411 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-23 03:07:27 +00:00
Reid Spencer
858dd546bb Report an error if one occurs in releaseModule. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40405 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-22 21:39:37 +00:00
Devang Patel
00ae1a2f02 Apply temporary work around to fix llvm mis-compilation 
reported in PR 1556.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40133 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-21 00:34:29 +00:00
Evan Cheng
ffbaccae02 No more noResults. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40132 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-21 00:34:19 +00:00
Dan Gohman
c674a924d4 Don't assume that only Uses can be kills. Defs are marked as kills initially 
when there are no uses. This fixes a dangling-pointer bug, where pointers to
deleted instructions were not removed from kills lists. More info here:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-July/009749.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40131 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 23:17:34 +00:00
Chris Lattner
d2f09965e6 zext(undef) = 0 and sext(undef) = 0, not undef. 
This hopefully fixes a miscompilation of TargetData.cpp when self hosting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40125 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 22:09:02 +00:00
Chris Lattner
3ccc6bc61c this xform is already done by the constant folder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40124 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 22:06:41 +00:00
Evan Cheng
8bd6035750 Added -print-emitted-asm to print out JIT generated asm to cerr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40123 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 21:56:13 +00:00
Devang Patel
edbef38067 Use SmallVector instead of std::vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40109 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 18:04:54 +00:00
Dan Gohman
9941f7426d Optimize alignment of loads and stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40102 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 16:34:21 +00:00
Duncan Sands
e2abf12436 Place SCCPSolver also in the anonymous namespace. This 
pacifies g++-4.2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40089 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 08:56:21 +00:00
Owen Anderson
c9399be5e5 Fix a bug where we were marking GEP expressions with the wrong opcode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40085 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 08:19:20 +00:00
Owen Anderson
521a20207c When removing instructions from the analysis, be sure to check the confirmed 
flag when determining what to do with dependencies.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40079 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 06:16:07 +00:00
Evan Cheng
b4162fd393 Because we promote SSE logical ops and loads to v2i64, we often end up generate 
code that cross integer / floating point domains (e.g. generate pxor / pand for
logical ops on floating point value, movdqa to load / store floating point SSE
values). Given that, it's better to use movaps instead of movdqa and movups
instead of movdqu. They have the same latency but the "aps" variants are one
byte shorter.
If the domain crossing problem is a real performance issue, then we will have to
fix it with dynamic programming based isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40076 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 00:27:43 +00:00
Evan Cheng
d5f181a665 Oops. These stores actually produce results. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40074 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 00:20:46 +00:00
Evan Cheng
d4d01b71a7 Fix custom lowering of SSE FXOR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40071 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 23:36:01 +00:00
Evan Cheng
31d3a65052 Fix patterns so we isel the xorps, etc. for floating pt logical SSE ops. DAG combiner may fold away the (bit_convert (load)). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40070 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 23:34:10 +00:00
Reid Spencer
9445e9aaa0 For PR1553: 
Change the keywords for the zext and sext parameter attributes to be 
zeroext and signext so they don't conflict with the keywords for the
instructions of the same name. This gets around the ambiguity.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40069 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 23:13:04 +00:00
Reid Spencer
087b72d1bc Hush a noisy warning from GCC 4.2 about overflow during conversion by using 
the type "unsigned" instead of uintptr_t for a 1-bit structure field.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40066 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 21:05:30 +00:00
Owen Anderson
b83e56f6b6 Make val_replace fail early, which reduces the time to optimize 403.gcc to 14.8s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40064 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 19:57:13 +00:00
Devang Patel
58e0ef1e90 Verify loop info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40062 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 18:02:32 +00:00
Duncan Sands
20d824b7df Replace mysterious code causing a g++-4.2 warning 
with hopefully correct code that pleases g++-4.2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40051 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 09:42:01 +00:00
Duncan Sands
70d0bd1624 As pointed out by g++-4.2, the original code didn't do 
what it thought it was doing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40044 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 07:31:58 +00:00
Owen Anderson
71a1e57d18 Remember to free the heap allocated array if we're not going to use it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40043 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 06:45:33 +00:00
Owen Anderson
19bc4a8acd Use SmallVector and DenseMap in even more places. 
With this, the time to optimize 403.gcc is down to 15.1s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40042 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 06:37:56 +00:00
Owen Anderson
fb66541e63 Change ValueTable to use a DenseMap for mapping expressions to value numbers. 
This results in a slight speedup for 403.gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40040 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 06:13:15 +00:00
Devang Patel
9750b5d577 Set up ground work to verify preserved analysis info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40039 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 05:36:09 +00:00
Owen Anderson
b97819852a Move some sets and maps to SmallPtrSet and DenseMap respectively. This 
reduces the time to optimize 403.gcc from 17.6s to 16.4s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40036 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 03:32:44 +00:00
Devang Patel
a8a8a36629 After a basic block is split into two parts, 
second part dominates all the blocks dominated
by original basic block. And first part dominates
second part.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40035 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 02:29:24 +00:00
Devang Patel
72ea8d9060 Now this temp. fix is not required. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40034 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 02:22:21 +00:00
Evan Cheng
64d80e3387 Change instruction description to split OperandList into OutOperandList and 
InOperandList. This gives one piece of important information: # of results
produced by an instruction.
An example of the change:
def ADD32rr  : I<0x01, MRMDestReg, (ops GR32:$dst, GR32:$src1, GR32:$src2),
                 "add{l} {$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;
=>
def ADD32rr  : I<0x01, MRMDestReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
                 "add{l} {$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40033 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 01:14:50 +00:00
Evan Cheng
4558b807a2 Only adjust esp around calls in presence of alloca. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40030 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 00:42:58 +00:00
Evan Cheng
7e7bbf8271 Only adjust esp around calls in presence of alloca. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40028 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 00:42:05 +00:00
Devang Patel
24857a3fac Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40025 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-18 23:50:19 +00:00
Devang Patel
31ad75329e Fix dominator info update to accommodate CFG changes. 
This fixes PR1559.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40024 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-18 23:48:20 +00:00
Evan Cheng
273288c888 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40022 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-18 23:34:48 +00:00
Evan Cheng
3c46eefba2 Use MOV instead of LEA to restore ESP if callee-saved frame size is 0; if previous instruction updates esp, fold it in. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40018 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-18 21:26:06 +00:00
Dan Gohman
6ab2d18f5e Add constructor overloads for LoadInst and StoreInst that insert at the 
end of a BasicBlock and have an alignment parameter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40016 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-18 20:51:11 +00:00
Dan Gohman
4106f3714e Implement initial memory alignment awareness for SSE instructions. Vector loads 
and stores that have a specified alignment of less than 16 bytes now use
instructions that support misaligned memory references.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40015 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-18 20:23:34 +00:00
Owen Anderson
b54b315251 Fix an issue where assignments that caused a SmallPtrSet to become non-small 
would result in calling realloc() on a null pointer.  Instead, if we encounter
this situation, make a normal call to malloc().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40014 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-18 19:54:15 +00:00
Dan Gohman
48613b930a It's not necessary to do rounding for alloca operations when the requested 
alignment is equal to the stack alignment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-18 16:29:46 +00:00
Evan Cheng
b5cd24973c New entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39998 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-18 08:21:49 +00:00
Evan Cheng
9b8c674432 Fold prologue esp update when possible. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39984 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 21:26:42 +00:00
Evan Cheng
f99002c143 Dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39979 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 20:01:19 +00:00
Evan Cheng
5b3332cc27 Make sure not to break eh_return. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39978 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 18:40:47 +00:00
Evan Cheng
698b63862c Update. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39977 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 18:39:45 +00:00
Evan Cheng
f27795d174 Missed the case where alloca is used but the stack size (not including callee-saved portion) is zero. Thanks Dan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39974 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 18:03:34 +00:00
Rafael Espindola
969c44481b detect invalid combination of sret and byval 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39971 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 13:34:23 +00:00
Evan Cheng
89d1659cf2 Use push / pop for prologues and epilogues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39967 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 07:59:08 +00:00
Chris Lattner
c3dbe70ce7 no email addrs in file headers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39962 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 05:56:43 +00:00
Reid Spencer
845b31de0c Unbreak the build by putting calls to free into the implementation file and 
having that implementation file #include <cstdlib>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39952 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 02:16:12 +00:00
Owen Anderson
ce17b1c1f8 Take advantage of undefined behavior if the source program tries to GEP 
beyond the end of an alloca to make FastDSE faster and more aggressive.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39945 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 23:34:39 +00:00
Owen Anderson
faac518ce0 Add support for walking up memory def chains, which enables finding many more 
dead stores on 400.perlbench.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39929 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 21:52:50 +00:00
Owen Anderson
1629a1fa87 Use realloc() to (potentially) resize the contents of SmallPtrSet in place. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39926 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 21:27:44 +00:00
Reid Spencer
bde6869ef4 Return Undef if the block has no dominator. This was required to allow 
llvm-gcc build to succeed. Without this change it fails in libstdc++
compilation. This causes no regressions in dejagnu tests. However, 
someone who knows this code better might want to review it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39924 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 21:03:44 +00:00
Dan Gohman
384152444d Use ConstantFoldFP for folding all unary floating-point operations which may 
have an error, and refector out the code for binary operators into
ConstantFoldBinaryFP and use it for all binary floating-point operations
which may have an error. These functions still rely exclusively on errno
to detect errors though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39923 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 15:26:22 +00:00
Dan Gohman
07a96765da Fix comments about vectors to use the current wording. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39921 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 14:29:03 +00:00
Chris Lattner
cb7122bb7d Repair a regression in Transforms/InstCombine/mul.ll that Reid noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39896 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 04:15:34 +00:00
Nick Lewycky
5380e941ef Start adding and cleaning up comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39894 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 02:58:37 +00:00
Nick Lewycky
eefdebe002 Handle decrementing loops properly. Fixes PR1533. 
Always pass the constant as the second parameter to HowManyLessThans.

Remove obsolete "isSigned" parameter.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39893 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 02:08:00 +00:00
Chris Lattner
4241e4da85 Implement shift-simplify.ll:test[45]. 
First teach instcombine that sign bit checks only demand the 
sign bit, this allows simplify demanded bits to hack on 
expressions better.

Second, teach instcombine that ashr is useless if only the
sign bit is demanded.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39880 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-15 20:54:51 +00:00
Chris Lattner
a0141b90a3 Implement shift-simplify.ll:test3, turning: 
(X << 31) <s 0  --> (X&1) != 0

This happens dozens of times in the CFE.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39879 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-15 20:42:37 +00:00
Nick Lewycky
28753f8df2 Clarify the language. Pointed out by Duncan Sands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39857 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 17:41:03 +00:00
Nick Lewycky
6d4b711e7f Fix the build. Patch from Holger Schurig. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39856 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 15:11:14 +00:00
Anton Korobeynikov
2365f51ed0 Long live the exception handling! 
This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.

After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be 
thought as 'finished': I expect many small and not so small glitches
everywhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39855 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 14:06:15 +00:00
Nick Lewycky
a73d11efd4 Use maximal intersection algorithm exclusively. Fixes miscompile bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39852 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 04:28:04 +00:00
Nick Lewycky
377b1190cb Add alternate ConstantRange intersection algorithm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39851 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 02:51:34 +00:00
Devang Patel
b4559a2179 Make LCSSA a loop pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39844 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 23:57:11 +00:00
Evan Cheng
03494d7c8f Fix for PR1540: Specify F0, F1 are sub-registers of D0, etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39843 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 23:55:50 +00:00
Owen Anderson
a08971559d Handle GEPs with all-zero indices in the same way we handle pointer-pointer bitcasts. Also, fix a potentia infinite loop. 
This brings FastDSE to parity with old DSE on 175.vpr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39839 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 22:50:48 +00:00
Devang Patel
fba36b8cba Disable claims to preserve analysis until open issues are resolved. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39834 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 21:53:42 +00:00
Dan Gohman
a346615d11 Fix the comment for LegalizeOp to more accurately reflect what it does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39827 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 20:14:11 +00:00
Dan Gohman
05d92fe7c4 Don't call SimplifyVBinOp for non-vector operations, following earlier review 
feedback. This theoretically makes the common (scalar) case more efficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39823 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 20:03:40 +00:00
Owen Anderson
3e8d001799 Be more aggressive in removing dead stores, and in removing instructions trivially dead after DSE. 
This drastically improves the effect of FastDSE on kimwitu++.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39819 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 18:26:26 +00:00
Dale Johannesen
72f1596403 Modify previous patch per review comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39817 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 17:31:29 +00:00
Dale Johannesen
e7e7d0d7e3 Skeleton of post-RA scheduler; doesn't do anything yet. 
Change name of -sched option and DEBUG_TYPE to
pre-RA-sched; adjust testcases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39816 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 17:13:54 +00:00
Chris Lattner
8dc4b59b85 Fix CodeGen/Generic/print-arith-fp.ll on sparc (PR1551) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39813 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 16:24:10 +00:00
Owen Anderson
43b2676cc2 Reimplement removing stores to allocas at the end of a function. This should be safe now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39790 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 21:41:30 +00:00
Owen Anderson
dd61c2b25c Make the condition-checking for free with non-trivial dependencies more correct. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39789 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 18:08:51 +00:00
Owen Anderson
1b4542b6df Remove the end-block handling code. It was unsafe, and making it safe would have resulted in falling back to the slow DSE case. I need to think some more about the right way to handle this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39788 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 17:52:20 +00:00
Dale Johannesen
66a2a8f878 ARM: make branch folder remove unconditional branches 
following jump tables that it earlier inserted.  This
would be OK on other targets but is needed for correctness
only on ARM (constant islands needs to find jump tables).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39782 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 16:45:35 +00:00
Duncan Sands
bb821dd79b The type ids making up a filter are unsigned, and 
should be output as unsigned values.  Checked against
gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39775 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 13:51:39 +00:00
Gabor Greif
3b0a7ea66e checked in as obvious, 
thanks Benoit Boissinot!


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 2007-07-12 13:31:38 +00:00
Chris Lattner
ca23e17adf another missed SSE optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39772 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 06:31:38 +00:00
Owen Anderson
1cb960a4bb Let MemoryDependenceAnalysis take care of updating AliasAnalysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39769 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 00:06:21 +00:00
Devang Patel
990e866deb Preserve analysis info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39767 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 23:47:28 +00:00
Bruno Cardoso Lopes
a4e8200366 Added support for Mips specific GAS directives 
Fixed print immediate 
Fixed Identation on MipsISelDAGToDAG.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39764 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 23:24:41 +00:00
Bruno Cardoso Lopes
7b155fbd60 Added support for framepointer 
Prologue/Epilogue support fp,ra save/restore and use the stack frame the right
way!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39763 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 23:21:31 +00:00
Owen Anderson
a96c1f665a Handle the case where an entire structure is freed, and its dependency is a store to a field within 
that structure.

Also, refactor the runOnBasicBlock() function, splitting some of the special cases into separate functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39762 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 23:19:17 +00:00
Bruno Cardoso Lopes
758dcca57a Now that stack is represented the right way, LOA starts at 0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39761 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 23:17:41 +00:00
Bruno Cardoso Lopes
2ab22d1b93 Fixed AddLiveOut issues 
FI's created the write way to represent Mips stack


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39760 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 23:16:16 +00:00
Bruno Cardoso Lopes
332a3d22a2 Removed unused immediate PatLeaf, fixed lui instruction 
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 2007-07-11 22:47:02 +00:00
Bruno Cardoso Lopes
4215a59a76 Added MipsMachineFunction class, to hold Mips dinamic stack info when inserting Prologue/Epilog 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39758 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 22:44:21 +00:00
Owen Anderson
6f46d65104 Add support for eliminate stores to stack-allocated memory locations at the end 
of a function.


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 2007-07-11 21:06:56 +00:00
Owen Anderson
2655adb3b2 Handle eliminating stores that occur right before a free. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39753 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 20:38:34 +00:00
Lauro Ramos Venancio
a126bb71d5 Handle packed structs in the CBackend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39752 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 19:56:53 +00:00
Evan Cheng
28bb462d4c Missed a couple of places where new instructions are added due to spill / restore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39748 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 19:17:18 +00:00
Owen Anderson
bfbfb3c464 Clean up a few things based on Chris' feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39747 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 19:03:09 +00:00
Tanya Lattner
08d14d2469 Adding ability to demote phi to stack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39744 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 18:41:34 +00:00
Dale Johannesen
5d9c4b6020 Fix hang compiling TimberWolf (allow for islands 
of size other than 4).


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 2007-07-11 18:32:38 +00:00
Lauro Ramos Venancio
75ce010f7b Assert when TLS is not implemented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39737 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 17:19:51 +00:00
Duncan Sands
c3751600b7 Exception handling has been implemented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39732 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 16:59:20 +00:00
Chris Lattner
082ced9391 Fix an oversight: for modules with no other identifying target info, 
the sparc backend should be preferred when running on sparcs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39142 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 16:32:10 +00:00
Duncan Sands
97b4ac8c84 If assertions are not enabled, we should return False here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38535 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 08:47:55 +00:00
Evan Cheng
b9591c667d No longer need to track last def / use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38534 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 08:47:44 +00:00
Evan Cheng
0c40d72b01 Fix for PR1545: Revamp code that update kill information due to register reuse. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38525 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 05:28:39 +00:00
Owen Anderson
b77c457cc8 Add FastDSE, a new algorithm for doing dead store elimination. This algorithm is not as accurate 
as the current DSE, but it only a linear scan over each block, rather than quadratic.  Eventually
(once it has been improved somewhat), this will replace the current DSE.

NOTE: This has not yet been extensively tested.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38517 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 00:46:18 +00:00
David Greene
67fcdf7f65 Make this work with GLIBCXX_DEBUG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38516 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 22:00:30 +00:00
Evan Cheng
8202010364 Didn't mean the last commit. Revert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38515 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 22:00:16 +00:00
Dale Johannesen
afdc7fda65 Fix fp_constant_op failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38514 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 21:53:30 +00:00
Evan Cheng
c608ff22e7 Update. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38513 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 21:49:47 +00:00
Dale Johannesen
bf6b8272b1 fix 80 columnn violations, increasing the world's 
pedantic satisfaction level.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38512 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 20:53:41 +00:00
Owen Anderson
8e85048d7b Calculate the size of a array allocation correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38511 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 20:48:38 +00:00
Owen Anderson
202da14fe0 Fix a crasher when finding the dependency of a call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38510 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 20:39:07 +00:00
Owen Anderson
776ee1fb33 Make this pass registration static as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38509 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 20:21:08 +00:00
Owen Anderson
16a72bb47d Make the pass registration static. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38508 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 20:20:19 +00:00
Chris Lattner
36c5155d0f add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38507 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 20:03:50 +00:00
Rafael Espindola
b91025b619 check for correct usage of the byval attribute 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38506 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 19:28:12 +00:00
Anton Korobeynikov
a289511090 During module cloning copy aliases too. This fixes PR1544 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38505 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 19:07:35 +00:00
Owen Anderson
06b6e82f79 Handle vaarg instructions correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38504 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 18:43:15 +00:00
Dan Gohman
743d3a7548 Change the peep for EXTRACT_VECTOR_ELT of BUILD_PAIR to look for 
the new CONCAT_VECTORS node type instead, as that's what legalize
uses now. And add a peep for EXTRACT_VECTOR_ELT of INSERT_VECTOR_ELT.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38503 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 18:20:44 +00:00
Owen Anderson
e314eb3255 Volatile loads and stores depend on each other. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38502 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 18:11:42 +00:00
Evan Cheng
13ab020ea0 Remove clobbersPred. Add an OptionalDefOperand to instructions which have the 's' bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38501 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 18:08:01 +00:00
Evan Cheng
2bf821c4bf Remove clobbersPred. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38500 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 18:07:08 +00:00
Owen Anderson
5f32320797 Add support for finding the dependencies of call and invoke instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38497 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 17:59:22 +00:00
Evan Cheng
5e2456c959 If the operand is marked M_OPTIONAL_DEF_OPERAND, then it's a def. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38496 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 17:52:20 +00:00
Evan Cheng
11ce02dbdd Somehow this wasn't committed last time. M_CLOBBERS_PRED is gone. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38495 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 17:50:43 +00:00
Owen Anderson
7a616a1012 Fix the build, and fix the handling of pointer sizes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38494 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 17:25:03 +00:00
Owen Anderson
6b278fc786 Fix a bunch of things from Chris' feedback 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38493 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 17:08:11 +00:00
Dan Gohman
70fb1aefd5 Fix a bug in the folding of binary operators to undef. 
Thanks to Lauro for spotting this!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38491 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 15:19:29 +00:00
Dan Gohman
d595b5f1f0 Fix the folding of undef in several binary operators to recognize 
undef in either the left or right operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38489 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 14:20:37 +00:00
Evan Cheng
af825c840e When a node value is only used by a CopyToReg, use the user's dest. This should not be restricted to nodes that produce only a single value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38485 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 07:08:32 +00:00
Evan Cheng
c63d391c9a Move DenseMapKeyInfo<SDOperand> from LegalizeDAG.cpp to SelectionDAGNodes.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38484 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 06:59:55 +00:00
Nick Lewycky
6e8eb7f075 Update the ValueRanges interface to use value numbers instead of Value*s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38483 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 03:28:21 +00:00
Owen Anderson
81c2a6ecbb Move some key maps from std::map to DenseMap. This improves the time to optimize Anton's testcase from 17.5s 
to 15.7s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38480 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 00:27:22 +00:00
Owen Anderson
a05a81b10a Use a cheaper test, delaying calling find_leader() until we know that it's necessary. This improves 
the time to optimize Anton's testcase from 21.1s to 17.6s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38479 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 00:09:25 +00:00
Dan Gohman
2038252c6a Define non-intrinsic instructions for vector min, max, sqrt, rsqrt, and rcp, 
in addition to the intrinsic forms. Add spill-folding entries for these new
instructions, and for the scalar min and max instrinsic instructions which
were missing. And add some preliminary ISelLowering code for using the new
non-intrinsic vector sqrt instruction, and fneg and fabs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38478 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 00:05:58 +00:00
Owen Anderson
5fd507d431 Add an assertion if find_leader fails. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38477 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 23:57:18 +00:00
Owen Anderson
dfa2435784 Take advantage of the new fast SmallPtrSet assignment operator when propagating AVAIL_OUT sets. 
This reduces the time to optimize Anton's testcase from 31.2s to 21.s!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38475 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 22:29:50 +00:00
Owen Anderson
69b5d12676 Make the assignment operator for SmallPtrSet much faster for normal cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38474 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 22:27:20 +00:00
Dan Gohman
d6fd1bc122 Preserve volatililty and alignment information when lowering or 
simplifying loads and stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38473 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 22:18:38 +00:00
Devang Patel
ff366850aa Expose struct size threhold to allow users to tweak their own setting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38472 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 21:19:23 +00:00
Dan Gohman
532dc2e1f2 Change getCopyToParts and getCopyFromParts to always use target-endian 
register ordering, for both physical and virtual registers. Update the PPC
target lowering for calls to expect registers for the call result to
already be in target order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38471 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 20:59:04 +00:00
Owen Anderson
4d6f96d699 Make the assignment operator for SmallPtrSet return a reference, and fix a long-standing bug in the copy 
ctor while I'm at it.

Thanks to Chris Lattner for help with this patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38470 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 20:59:01 +00:00
Devang Patel
b42295df4d Fix memory leak. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38469 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 20:52:39 +00:00
Dan Gohman
93f81e2822 Initialize the IndexedModeActions array with memset before 
updating it with calls to setIndexedLoadAction/setIndexedStoreAction,
which only update a few bits at a time. This avoids ostensible
undefined behavior of operationg on values which may be
trap-representations, and as a practical matter fixes errors from
valgrind, which doesn't track uninitialized memory with bit
granularity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38468 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 20:49:44 +00:00
Owen Anderson
da8ebc6b43 Fix an error in the assignment operator that was causing an infinite loop in GVNPRE.cpp. 
Patch by Chis Lattner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38467 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 18:51:15 +00:00
Chris Lattner
87bdba6d6a The various "getModuleMatchQuality" implementations should return 
zero if they see a target triple they don't understand.



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 2007-07-09 17:25:29 +00:00
Chris Lattner
91f0158d4d implement operator= for smallptrset 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38460 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 16:54:03 +00:00
Owen Anderson
ab3fd054ea Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38459 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 16:43:55 +00:00
Chris Lattner
e094f54f4c Fix this warning: 
DAGCombiner.cpp: In member function 'llvm::SDOperand<unnamed>::DAGCombiner::visitOR(llvm::SDNode*)':
DAGCombiner.cpp:1608: warning: passing negative value '-0x00000000000000001' for argument 1 to 'llvm::SDOperand llvm::SelectionDAG::getConstant(uint64_t, llvm::MVT::ValueType, bool)'

oiy.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38458 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 16:16:34 +00:00
Dan Gohman
9a6ae965d6 Move the APInt form of SCEVUnknown::getIntegerSCEV to SCEVConstant::get, and 
use SCEVConstant::get instead of SCEVUnknown::get when constructing a SCEV
for a ConstantInt.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38457 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 15:25:17 +00:00
Gabor Greif
e510b3af3a fix typos 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38453 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 12:00:59 +00:00
Owen Anderson
b9eeb1acbc Improve a hotspot that was making build_sets() slower by calling lookup() too 
often.  This improves Anton's testcase from 36s to 32s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38441 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 07:56:55 +00:00
Owen Anderson
0616dffd64 Start using a set representation that remembers the set of value numbers represented 
in the set.  For the moment, this results in a slight performance decrease, but
it lays the groundwork for future improvements.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38439 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 06:50:06 +00:00
Owen Anderson
36a07daabd Fix an error where ANTIC_OUT was ending up with more than one expression of 
the same value number.  This fixes an infinite loop on 444.namd.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37967 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-07 20:13:57 +00:00
Nick Lewycky
8f5149e002 Back out Devang's fix for PR1320 because it causes PR1542. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37966 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-07 16:23:34 +00:00
Evan Cheng
9ad6f03166 No need for ccop anymore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37965 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 23:34:09 +00:00
Evan Cheng
d2c5eb864f Teach if-conversion about instructions that were already predicated, e.g. conditional move. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37964 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 23:24:39 +00:00
Evan Cheng
4b9cb7d135 Incorrect check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37962 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 23:23:19 +00:00
Evan Cheng
06aae67b83 Do away with ImmutablePredicateOperand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37961 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 23:22:46 +00:00
Evan Cheng
14c4655403 isUnpredicatedTerminator should treat conditional branches as unpredicated terminator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37960 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 23:22:03 +00:00
Evan Cheng
49ce02e408 Do away with ImmutablePredicateOperand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37959 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 23:21:02 +00:00
Owen Anderson
78e02f78ce A first stab at memory dependence analysis. This is an interface on top of 
alias analysis, adding caching and lazy computation of queries.  This will
be used in planned improvements to memory access optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37958 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 23:14:35 +00:00
Devang Patel
05c1dc6493 These rountines are now available as part of basic block utilities. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37955 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 22:03:47 +00:00
Devang Patel
7be06f9158 Request DominanceFrontiner in advance. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37954 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 21:43:22 +00:00
Devang Patel
658f625d16 Preserve various analysis info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37953 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 21:40:13 +00:00
Devang Patel
8019893c3f Add SplitEdge and SplitBlock utility routines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37952 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 21:39:20 +00:00
Owen Anderson
ec5614b522 Be more aggressive in the heuristic. This mostly exposes more opportunities 
for the GVN part of GVNPRE to apply.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37951 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 20:29:43 +00:00
Gabor Greif
db5565a1f5 finishing touches of bytecode -> bitcode changes. also unbreak Windows 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37950 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 20:28:40 +00:00
Owen Anderson
2c194e6bd1 Achieve what the incorrect test was trying to do by simply requiring that all 
critical edges be split before we begin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37949 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 18:12:36 +00:00
Owen Anderson
6a6152ca2d Remove an incorrect check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37948 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 16:52:47 +00:00
Duncan Sands
f664e41b20 The exception handling intrinsics return values, 
so must be lowered to a value, not nothing at all.
Subtle point: I made eh_selector return 0 and
eh_typeid_for return 1.  This means that only
cleanups (destructors) will be run as the exception
unwinds [if eh_typeid_for returned 0 then it would
be as if the first catch always matched, and the
corresponding handler would be run], which is
probably want you want in the CBE.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37947 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 14:46:23 +00:00