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2157 Commits

Author SHA1 Message Date
Vikram S. Adve
e18a54c249 Use vectors instead of hash_maps for issueGaps and conflictLists. 
These hash lookups were a major sink of time because they happen so often!
Also, add option to disable scheduling.

llvm-svn: 4138
 2002-10-13 00:40:37 +00:00
Vikram S. Adve
211f972d28 Major bug fix: was not adding CD edges for RETURNs! 
llvm-svn: 4137
 2002-10-13 00:39:22 +00:00
Vikram S. Adve
7387d96d6a Use vectors instead of hash_maps for issueGaps and conflictLists. 
These hash lookups were a major sink of time because they happen so often!

llvm-svn: 4136
 2002-10-13 00:37:46 +00:00
Vikram S. Adve
7b920c5768 Run LICM before GCSE! 
llvm-svn: 4135
 2002-10-13 00:34:10 +00:00
Vikram S. Adve
7436df838d Several major fixes, particularly in emitting constant aggregates: 
(1) Padding bytes between structure fields (for alignment) were never
    being emitted into the constant pool so the layout did not match!
(2) In printing constants, structures containing structures or arrays
    were never handled.
(3) Support new model for external/uninitialized/initialized globals.
    Uninitialized globals are no longer emitted since they are external.
    Initialized globals may go either in .bss or in .data.

llvm-svn: 4134
 2002-10-13 00:32:18 +00:00
Vikram S. Adve
032dee9564 Don't use %l0 for large operands to a SAVE since it is needed *before* SAVE! 
We now use %g1 instead since that is shared and volatile.

llvm-svn: 4133
 2002-10-13 00:24:06 +00:00
Vikram S. Adve
84fa49d0e5 Don't mark JMPLCALL and JMPLRET as branches. 
llvm-svn: 4132
 2002-10-13 00:22:32 +00:00
Vikram S. Adve
c78e160ede (1) Try to evaluate constant when multiplying 2 constants. 
(2) Use intelligent multiply selection code for array allocas.
(3) Don't use cache padding for alloca'd stack slots!
(4) Bug fix in handling call arguments: was not copying sixth FP arg
    to int reg. when calling a function with no prototype.

llvm-svn: 4130
 2002-10-13 00:18:57 +00:00
Vikram S. Adve
df4ed78bc9 Eliminate duplicate target pointer in SparcRegInfo. 
llvm-svn: 4129
 2002-10-13 00:06:04 +00:00
Vikram S. Adve
6b459791f7 Eliminate duplicate target pointer. Also add a few assertions. 
llvm-svn: 4128
 2002-10-13 00:05:30 +00:00
Vikram S. Adve
dc9d94262d Make sure to handle small negative values hiding as large unsigned longs -- 
this is a common case created by the front-end.

llvm-svn: 4127
 2002-10-13 00:04:26 +00:00
Vikram S. Adve
29dd99d98b Major fix: extract ConstantExpr nodes and decompose them into symbolic 
instructions so that (a) constant folding is done automatically before
code generation, and (b) selection does not have to deal with them.
Also, check for ConstantPointerRefs in additional to GlobalValues
when creating a GEP to load a global address.

llvm-svn: 4126
 2002-10-13 00:01:57 +00:00
Anand Shukla
d80a46cb42 Changed to external global var 
llvm-svn: 4120
 2002-10-12 20:33:47 +00:00
Nick Hildenbrandt
8dba342c37 Instead of adding stdlib we just prototype malloc correctly. 
llvm-svn: 4118
 2002-10-11 21:40:44 +00:00
Nick Hildenbrandt
27d9b87ed1 Sun requires you to include stdlib to use malloc 
llvm-svn: 4117
 2002-10-11 18:41:44 +00:00
Vikram S. Adve
be4905b56a Major bug fix: spill code for an instruction in a delay slot was 
merrily being inserted before/after the instruction!

llvm-svn: 4116
 2002-10-11 16:12:40 +00:00
Vikram S. Adve
f19f08c3ab Don't pad variables in stack slots for performance! 
llvm-svn: 4115
 2002-10-11 16:10:53 +00:00
Vikram S. Adve
5b3555bdd3 Use PARALLEL_DIRS. 
llvm-svn: 4114
 2002-10-11 16:08:17 +00:00
Misha Brukman
b4940744de Added capability to get execution count of a loop if it is a predictable 
number of iterations.

llvm-svn: 4113
 2002-10-11 05:34:32 +00:00
Misha Brukman
d55cfa6b94 Added helper functions in LoopInfo: isLoopExit and numBackEdges. 
llvm-svn: 4112
 2002-10-11 05:31:10 +00:00
Chris Lattner
8cd34b84b2 Stop using DataStructureGraph.h 
llvm-svn: 4106
 2002-10-10 20:33:46 +00:00
Chris Lattner
42547124d0 - Dramatically simplify the ConstantMerge code now that 
Value::replaceAllUsesWith works with constants correctly.

llvm-svn: 4104
 2002-10-09 23:16:04 +00:00
Chris Lattner
266bacb650 - Make Value::replaceAllUsesWith work with constants correctly. This fixes 
bug FuncResolve/2002-08-19-ResolveGlobalVars.ll and gzip looks better.

llvm-svn: 4103
 2002-10-09 23:12:59 +00:00
Chris Lattner
0acdba0025 - Add new Constant::replaceUsesOfWithOnConstant which has an end result 
similar to User::replaceUsesOfWith but actually does the right thing for
    constants.

llvm-svn: 4102
 2002-10-09 23:12:25 +00:00
Chris Lattner
83d105d986 Almost a complete rewrite of FunctionResolution to now resolve functions 
and global variables.

This fixes bug: FuncResolve/2002-08-19-ResolveGlobalVarsEasier.ll
And bug: SingleSource/UnitTests/2002-10-09-ArrayResolution.c

Note that this does not fix bug:
FunctionResolve/2002-08-19-ResolveGlobalVars.ll because replaceAllUsesWith
breaks when a constantexpr is pointing to the thing being replaced.  This
is more of an infrastructure problem than anything.

llvm-svn: 4099
 2002-10-09 21:10:06 +00:00
Chris Lattner
0e7fbf7025 Minor, non-functionality changing, formatting fix 
llvm-svn: 4091
 2002-10-09 00:25:32 +00:00
Chris Lattner
a8dd29787b - Remove Value::use_remove 
llvm-svn: 4090
 2002-10-09 00:25:05 +00:00
Chris Lattner
51d98b38f2 - Rename MTy to FTy (no methods exist anymore) 
- Fix bug: LevelRaise/2002-10-08-VarArgCallInfLoop.ll

llvm-svn: 4088
 2002-10-09 00:16:00 +00:00
Chris Lattner
88de60dd26 Fix NASTY N^2 behavior that was causing the gzip benchmark to take forever to 
assemble.  Now we scan the use-list from the back when removing users instead
of from the front.

llvm-svn: 4086
 2002-10-08 23:46:55 +00:00
Chris Lattner
4a72e094f9 Fix bug: Assembler/2002-10-08-LargeArrayPerformance.ll by using 
std::vector::reserve when possible

llvm-svn: 4085
 2002-10-08 23:33:52 +00:00
Chris Lattner
e8160b4dd1 - Fix bug: LevelRaise/2002-10-08-VarArgCall.ll 
llvm-svn: 4083
 2002-10-08 22:19:25 +00:00
Chris Lattner
d68e6d1718 - Fix bug: cee/2002-10-07-NoImmediateDominator.ll 
llvm-svn: 4081
 2002-10-08 21:53:51 +00:00
Chris Lattner
c35f54df86 Changes to support PHINode::removeIncoming changes 
llvm-svn: 4080
 2002-10-08 21:36:34 +00:00
Chris Lattner
9c236351fd Changes to support PHINode::removeIncoming changes 
llvm-svn: 4079
 2002-10-08 21:36:33 +00:00
Chris Lattner
f868df40b9 - Change PHINode::removeIncomingValue to delete the phi node if the last 
incoming value is removed!

llvm-svn: 4078
 2002-10-08 21:34:58 +00:00
Chris Lattner
40df2d9d4c - Checkin LARGE number of Changes to CEE pass that will make it much more 
powerful, but that are largely disabled.  The basic idea here is that it
    is trying to forward branches across basic blocks that have PHI nodes in
    it, which are crucial to be able to handle cases like whet.ll.
    Unfortunately we are not updating SSA correctly, causing sim.c to die, and I
    don't have time to fix the regression now, so I must disable the
    functionality.

llvm-svn: 4077
 2002-10-08 21:34:15 +00:00
Chris Lattner
3cf20c3f14 Expose isCriticalEdge & SplitCriticalEdge methods from crit-edges pass 
llvm-svn: 4075
 2002-10-08 21:06:27 +00:00
Chris Lattner
b9f59f1533 Expose new "recalculate" method from dominatorset 
llvm-svn: 4074
 2002-10-08 19:12:08 +00:00
Chris Lattner
b32252aa71 It is illegal for PHI nodes to have zero values, delete the code to handle them 
llvm-svn: 4071
 2002-10-08 17:07:39 +00:00
Chris Lattner
55c7ae3cdc Fold ashr -1, X into -1 
llvm-svn: 4070
 2002-10-08 16:16:40 +00:00
Chris Lattner
c532e35cce Non-functionality change just to make it more clear what is going on 
llvm-svn: 4060
 2002-10-07 18:34:32 +00:00
Chris Lattner
4e19009255 Global variables are now external if they don't have initializers, not 
"uninitialized"

llvm-svn: 4052
 2002-10-06 22:48:09 +00:00
Chris Lattner
d8244f43d4 Check that we don't have external varaibles with internal linkage 
llvm-svn: 4051
 2002-10-06 22:47:32 +00:00
Chris Lattner
6408586b7b The parser now accepts "external" global variables, in addition to the backwards 
compatible "uninitialized" global variables

llvm-svn: 4050
 2002-10-06 22:45:09 +00:00
Chris Lattner
53a414c3c4 PHI nodes are not allowed to exist with zero incoming values, check that 
there aren't any like this.

llvm-svn: 4044
 2002-10-06 21:00:31 +00:00
Vikram S. Adve
6932399f9b Bug fix: In preventing static global variables from being printed twice, 
I also prevented external globals from being printed twice, but they
should (extern declaration and definition).

llvm-svn: 4043
 2002-10-05 23:43:10 +00:00
Anand Shukla
d49d35f562 Added #include<unistd.h> to compile with solaris gcc3.2 
llvm-svn: 4042
 2002-10-04 23:57:01 +00:00
Anand Shukla
02acbe2c93 added cast to unsigned to compile with gcc3.2 (sparc) 
llvm-svn: 4041
 2002-10-04 23:56:18 +00:00
Chris Lattner
a923b0f49f Handle post dominance correctly in the case where blocks do not have a path to 
the exit node.

llvm-svn: 4038
 2002-10-04 14:50:20 +00:00
Chris Lattner
85ba0832e5 Fix a nasty problem with dominance calculation for unreachable blocks. 
If we had a CFG that look like Entry -> B, Unreachable -> B, then we would
not correctly determine that Entry dominated B, because Entry did not
apparently dominate "unreachable".  This patch fixes this by making the entry
node dominate all blocks, including unreachable ones.

llvm-svn: 4037
 2002-10-04 14:45:48 +00:00