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3901 Commits

Author SHA1 Message Date
Devang Patel
a0238778db Initialize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48253 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-11 22:08:21 +00:00
Dan Gohman
882d87d168 Check to see if a two-entry PHI block can be simplified 
before trying to merge the block into its predecessors.
This allows two-entry-phi-return.ll to be simplified
into a single basic block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48252 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-11 21:53:06 +00:00
Devang Patel
75e6f02445 Skip functions that return multiple values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48233 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-11 18:04:06 +00:00
Devang Patel
826c49132a Become multiple return value aware. 
Right now, the pass does not optimize tail recursions 
involving multiple return values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48228 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-11 17:33:32 +00:00
Devang Patel
9af014f80c Add TODO reminder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48227 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-11 17:32:05 +00:00
Devang Patel
7c490d4104 Initial multiple return values support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48210 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-11 05:46:42 +00:00
Devang Patel
b8f198af1b Restore optimization that merges blocks when inline function 
has single return value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48162 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-10 18:34:00 +00:00
Devang Patel
641ca93cff Simplify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48161 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-10 18:22:16 +00:00
Devang Patel
7498f90926 simplify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48160 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-10 18:11:41 +00:00
Nick Lewycky
9be3c97183 Turn unwind_to into "unwinds to". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48123 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-10 02:20:00 +00:00
Ted Kremenek
58d5e05157 Fix some compilation errors on msvc: 
- "Redefinition of I" (iterator masks previous definition)
- include missing header file

Patch by Argiris Kirtzidis!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48115 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 18:32:50 +00:00
Nick Lewycky
3c4a26226f And again. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48112 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 17:13:05 +00:00
Nick Lewycky
f336983bbc Braces belong here. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48111 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 17:11:18 +00:00
Nick Lewycky
a66696ef0d SCCP also needs to be taught to follow unwind_to 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48109 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 09:44:38 +00:00
Nick Lewycky
9143699260 Don't eliminate blocks that are only reachable by unwind_to. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48106 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 08:50:23 +00:00
Nick Lewycky
3f4cc3101e Firstly, having a BranchInst isn't exclusive with having an unwind_to. 
Secondly, we have to check whether the branch is actually pointing to the block
with the unwind in it. We could have gotten here because of the unwind_to alone.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48099 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 07:50:37 +00:00
Nick Lewycky
db96ae9607 A BB that unwind_to an "unwind" inst is that same as one that doesn't unwind_to 
at all.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48096 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 07:36:38 +00:00
Nick Lewycky
529de8a457 Update the block cloner which fixes bugpoint on code using unwind_to (phew!) 
and also update the cloning interface's major user, the loop optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48088 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 05:24:34 +00:00
Nick Lewycky
6af31aab63 Update the inliner and simplifycfg to handle unwind_to. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48086 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 05:10:13 +00:00
Nick Lewycky
c6694228fa Two things. Preserve the unwind_to when splitting a BB. 
Add the ability to remove just one instance of a BB from a phi node. This fixes
the compile error in the tree now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48085 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 05:04:48 +00:00
Nick Lewycky
c0d025f54f Prune the unwind_to labels on BBs that don't need them. Another step in the 
removal of invoke, PR1269.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48084 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 04:55:16 +00:00
Nick Lewycky
6c36a0f9ee Not all users of a BB are Instructions any more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48047 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 07:48:41 +00:00
Devang Patel
12a466b9d0 Update inliner to handle functions that return multiple values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48020 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 20:06:16 +00:00
Andrew Lenharth
d245a8ae47 add a pass that can extract all kinds of global values, not just functions. Update llvm-extract to use it and optionally extract a global variable if you want it too 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48015 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 19:51:57 +00:00
Gabor Greif
29d8aa7877 fix typos 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47994 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-06 10:36:00 +00:00
Nick Lewycky
c1a2a61201 Don't try to simplify urem and srem using arithmetic rules that don't work 
under modulo (overflow). Fixes PR1933.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47987 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-06 06:48:30 +00:00
Devang Patel
e0a6a3f22d Skip, for now, callsites where use of sret argument is not dominated by callsite. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47980 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-05 23:39:23 +00:00
Devang Patel
c5eb380b60 Handle 'ret' with multiple values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47965 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-05 21:50:24 +00:00
Devang Patel
4d519457d1 Skip functions that return multiple values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47924 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-05 00:36:59 +00:00
Devang Patel
ac3746f20c Use while loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47909 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 21:59:49 +00:00
Devang Patel
37963556e3 Use cast instead of dyn_cast. 
Update test to use multiple return value directly, instead of relying on -sretpromotion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47907 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 21:45:28 +00:00
Devang Patel
a9fe8bb3b6 Filter nested structs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47906 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 21:32:09 +00:00
Devang Patel
dc00d42bb1 Handle multiple return values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47904 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 21:15:15 +00:00
Devang Patel
96f9cc02e3 Use appropriate index to get the result value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47897 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 19:22:54 +00:00
Devang Patel
544b92bb3c Skip sret attribute while preparing attribute list for 
new function and new call sites.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47896 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 19:12:58 +00:00
Devang Patel
df1d15c52e Increment counter that keeps track of total number of sret promoted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47892 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 17:48:11 +00:00
Devang Patel
d0f4103a31 Skip declarations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47890 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 17:47:06 +00:00
Devang Patel
74382c3453 Process externally visible functions also. Later on code generator will do the right thing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47889 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 17:46:26 +00:00
Devang Patel
98a6e067df Collect statistics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47888 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 17:44:37 +00:00
Devang Patel
41e2397b72 s/isReturnStruct()/hasStructRetAttr()/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47857 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-03 21:46:28 +00:00
Devang Patel
2a4821b2b3 Preserve paramater attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47847 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-03 18:36:03 +00:00
Chris Lattner
b822e70f36 allow specified inline threshold to be negative, as the value is 
itself sometimes negative.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47786 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-01 08:09:51 +00:00
Devang Patel
c45b5d9f66 Fix cut-n-pasto. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47777 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 23:41:13 +00:00
Devang Patel
ca891ecf91 Add pass to promote sret. 
This pass transforms 

  %struct._Point = type { i32, i32, i32, i32, i32, i32 }
  define internal void @foo(%struct._Point* sret  %agg.result)

into

  %struct._Point = type { i32, i32, i32, i32, i32, i32 }
  define internal %struct._Point @foo()

This pass updates foo() clients appropriately to use
getresult instruction to extract return values.

This pass is not yet ready for prime time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47776 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 23:34:08 +00:00
Chris Lattner
9d34c4d678 fix a bug Anders ran into where scalarrepl would crash when promoting 
a union containing a vector and an array whose elements were smaller than
the vector elements.  this means we need to compile the load of the 
array elements into an extract element plus a truncate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47752 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 07:12:06 +00:00
Chris Lattner
800de31776 Refactor some code out of ConvertUsesToScalar into their own methods, no 
functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47751 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 07:03:13 +00:00
Chris Lattner
5ebd93630b Folding or(fcmp,fcmp) only works if the operands of the fcmps are the same fp type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47750 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 06:09:11 +00:00
Owen Anderson
77db50f68f Fix an issue where GVN had the sizes of the two memcpy's reverse, resulting 
in an invalid transformation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47639 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 23:06:17 +00:00
Gabor Greif
53bdbd7565 fix http://llvm.org/bugs/show_bug.cgi?id=2097 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47615 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 19:13:21 +00:00
Eli Friedman
9ec8095485 Fix for pr2093: direct operands aren't necessarily addresses, so don't 
try to simplify them.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47610 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 18:37:49 +00:00