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453a844128
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20216 Commits

Author SHA1 Message Date
Devang Patel
453a844128 Add transformation to update loop interation space. Now, 
for (i=A; i<N; i++) {
  if (i < X && i > Y)
    do_something();
}

is transformed into

U=min(N,X); L=max(A,Y);
for (i=L;i<U;i++)
  do_somethihg();                            



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42299 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-25 17:31:19 +00:00
Dale Johannesen
902ff94aff Fix long double<->shorter FP type conversions 
of zero, infinity, and NaNs.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42298 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-25 17:25:00 +00:00
Dan Gohman
c3b0b5ca1d Move the setOperationAction(ISD::DEBUG_LOC, MVT::Other, Expand) and 
the check to see if the assembler supports .loc from X86TargetLowering
into the superclass TargetLowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42297 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-25 15:10:49 +00:00
Duncan Sands
db1b3e08bc Add missing end-of-file newlines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42294 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-25 07:10:01 +00:00
Evan Cheng
0488db9b99 Added support for new condition code modeling scheme (i.e. physical register dependency). These are a bunch of instructions that are duplicated so the x86 backend can support both the old and new schemes at the same time. They will be deleted after 
all the kinks are worked out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42285 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-25 01:57:46 +00:00
Evan Cheng
a6fb1b6743 Added major new capabilities to scheduler (only BURR for now) to support physical register dependency. The BURR scheduler can now backtrace and duplicate instructions in order to avoid "expensive / impossible to copy" values (e.g. status flag EFLAGS for x86) from being clobbered. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42284 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-25 01:54:36 +00:00
Evan Cheng
a3602685b3 New temporary option -new-cc-modeling-scheme to test the new cc modeling scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42283 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-25 01:50:04 +00:00
Evan Cheng
d23aa5a053 Rename keyword "modify" -> "implicit". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42282 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-25 01:48:59 +00:00
Dale Johannesen
48d1e4517e When mixing SSE and x87 codegen, it's possible to 
have situations where an SSE instruction turns into
multiple blocks, with the live range of an x87
register crossing them.  To do this correctly make
sure we examine all blocks when inserting
FP_REG_KILL.  PR 1697.  (This was exposed by my
fix for PR 1681, but the same thing could happen
mixing x87 long double with SSE.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42281 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 22:52:39 +00:00
Bill Wendling
cab5f5d269 Don't execute dump unless NDEBUG isn't defined. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42280 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 22:43:48 +00:00
Daniel Berlin
e6f0479aee Comment fixups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42279 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 22:20:45 +00:00
Dan Gohman
a5a403d766 Add support on x86 for having Legalize lower ISD::LOCATION to ISD::DEBUG_LOC 
instead of ISD::LABEL with a manual .debug_line entry when the assembler
supports .file and .loc directives.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42278 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 21:54:14 +00:00
Dan Gohman
81a148bd56 Don't emit .debug_line header data if there aren't any lines to put in it, 
such as will happen when .loc directives are used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42277 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 21:43:52 +00:00
Dan Gohman
44de9267c3 Move the Asm->EOL() call for EmitDebugARanges outside the #ifdef for 
consistency with the other currently empty sections.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42276 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 21:36:21 +00:00
Dan Gohman
8549636fcf Add support for emitting .file directives to set up file numbers for 
use with .loc directives.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42275 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 21:32:18 +00:00
Dan Gohman
72252732c8 Merge hasDotLoc and hasDotFile into hasDotLocAndDotFile since .loc and .file 
aren't really usable without each other. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42274 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 21:09:53 +00:00
Dale Johannesen
6b92942c9c float->int conversion rounds toward 0. Duh. 
Fixes PR1698.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42273 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 21:06:09 +00:00
Dan Gohman
189f80dc25 Add a routine for emitting .file directives, for setting up 
file numbers to use with .loc directives.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42272 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 20:58:13 +00:00
Bruno Cardoso Lopes
b42abebe36 Added "LoadEffective" pattern to handle stack locations. 
Fixed some comments


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42271 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 20:15:11 +00:00
Devang Patel
128459b85b Do not promote null values because it may be unsafe to do so. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42270 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 20:02:42 +00:00
Daniel Berlin
d81ccc2806 Implement offline variable substitution in order to reduce memory 
and time usage.
Fixup operator == to make this work, and add a resize method to DenseMap
so we can resize our hashtable once we know how big it should be.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42269 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 19:45:49 +00:00
Dan Gohman
6b5766e27c Fix the syntax for the .loc directive in preparation for using it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42268 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 19:25:06 +00:00
Dan Gohman
5e6e93ecdc The code that used the StartLabelId label was removed, so remove the 
code that creates the label too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42265 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 16:44:26 +00:00
Dan Gohman
e40c7b0973 Use the correct result value type instead of using getValueType(0) 
in ExpandEXTRACT_VECTOR_ELT and SplitVectorOp. This fixes an abort
in the included testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42264 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 15:54:53 +00:00
Dan Gohman
746767b097 explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42262 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 15:48:49 +00:00
Chris Lattner
9b4baf1692 claim that "st" is from the 80-bit register file. This causes x87-using inline 
asm to die with:

ScheduleDAG.cpp:269: failed assertion `false && "Couldn't find the register class"'

instead of:
failed assertion `RegMap->getRegClass(VReg) == RC && "Register class of operand and regclass of use don't agree!"'

yay.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42259 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 05:27:37 +00:00
Chris Lattner
9251f13b55 When emitting .set directives, make sure the EH and Debug labels can't conflict. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42257 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 03:35:37 +00:00
Owen Anderson
68099d58cb Merge significant portions of the DomTree and PostDomTree implementations. 
The two remaining unmerged parts are DFSPass, and the Calculate().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42255 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 02:29:29 +00:00
Dale Johannesen
79653fcdc2 Just use APFloat for const / const. Fixes 
-1. / -0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42254 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 00:32:45 +00:00
Owen Anderson
04fa569320 Factor the calculation details for PostDomTree out of PostDominators.cpp and 
into a separate header file.

Next step: merging PostDominatorCalculation.h with DominatorCalculation.h.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42251 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-23 22:21:00 +00:00
Owen Anderson
eefb31094f Move DFSPass back down into DominatorTree. I need to figure out what the difference is between it 
and the PostDomTree version first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42250 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-23 22:16:38 +00:00
Owen Anderson
96d514d21a Fix header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42249 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-23 21:32:55 +00:00
Owen Anderson
d20c824b20 Factor the dominator tree calculation details out into DominatorCalculation.h. This 
change is not useful in and of itself, but it lays the groundwork for combining
the dominator and postdominator implementations.

Also, factor a few methods that are common to DominatorTree and PostDominatorTree
into DominatorTreeBase.  Again, this will make merging the two calculation methods
simpler in the future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42248 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-23 21:31:44 +00:00
Dale Johannesen
f1fc3a8fa6 Fix PR 1681. When X86 target uses +sse -sse2, 
keep f32 in SSE registers and f64 in x87.  This
is effectively a new codegen mode.
Change addLegalFPImmediate to permit float and
double variants to do different things.
Adjust callers.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42246 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-23 14:52:20 +00:00
Chris Lattner
96b207c380 Fix PR1679, by printing GEP indices as signed values instead of unsigned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42239 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-22 20:16:48 +00:00
Chris Lattner
b690a005c1 initialize isstore/isload fields in ctor, fixing PR1695 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42222 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-22 07:02:12 +00:00
Neil Booth
c8db43ddaf Handle storage complications of float->float conversions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42220 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-22 02:56:19 +00:00
Dale Johannesen
910993e8dc Change APFloat::convertFromInteger to take the incoming 
bit width instead of number of words allocated, which
makes it actually work for int->APF conversions.
Adjust callers.  Add const to one of the APInt constructors
to prevent surprising match when called with const
argument.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42210 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 22:09:37 +00:00
Devang Patel
3f65f02d25 Fix PR1692 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42209 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 21:18:19 +00:00
Chris Lattner
27725bf13f #ifdef out unsafe tracing code, which fixes PR1689 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42205 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 18:30:39 +00:00
Chris Lattner
c369bd7c50 don't read Block after it is freed. This fixes PR1684 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42204 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 18:25:53 +00:00
Chris Lattner
dfe8934258 initialize SetCCResultContents, fixing PR1693 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42193 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 17:06:39 +00:00
Rafael Espindola
a37ac9ff53 Don't add a default STACK_ALIGN (use the generic ABI alignment) 
Implement calls to functions with byval arguments on X86


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42192 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 15:50:22 +00:00
Rafael Espindola
1242d28093 small cleanup: use LowerMemArgument in LowerFastCCArguments also 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42189 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 14:55:38 +00:00
Owen Anderson
ce4d88aa64 Add partial caching of non-local memory dependence queries. This provides a modest 
speedup for GVN.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42185 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 03:53:52 +00:00
Evan Cheng
76a4023096 Honor user-defined section specification of a global, ignores whether its initializer is null. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42182 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 00:41:19 +00:00
Dale Johannesen
a72a5a095d Fix PR 1688. See comments there. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42181 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-20 23:47:58 +00:00
Devang Patel
9ee49c541b Update aux. info associated with an instruction before erasing instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42180 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-20 23:45:50 +00:00
Devang Patel
0f0daea654 Do not override user specified section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42179 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-20 23:07:37 +00:00
Devang Patel
d15dd8c525 Don't increment invalid iterator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42178 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-20 23:01:50 +00:00