Commit Graph

793 Commits

Author SHA1 Message Date
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
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
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
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
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
Dale Johannesen
22c3979fca Split ParameterAttributes.h, putting the complicated
stuff into ParamAttrsList.h.  Per feedback from
ParamAttrs changes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47504 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-22 22:17:59 +00:00
Anton Korobeynikov
c6ee8276f3 Get rid of hash_map. Use StringMap instead
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47373 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 11:27:49 +00:00
Anton Korobeynikov
07e6e56f57 Make Transforms to be 4.3 warnings-clean
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47371 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 11:26:25 +00:00
Anton Korobeynikov
ae9f3a3b7c Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47367 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 11:08:44 +00:00
Dale Johannesen
0d51e7ec0d Expand ParameterAttributes to 32 bits (in preparation
for adding alignment info, not there yet).  Clean up
interfaces to reference ParameterAttributes consistently.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47342 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-19 21:38:47 +00:00
Duncan Sands
548448a317 Simplify caller updating using a CallSite, as
requested by Chris.  While there, do the same
for an existing function committed by someone
called "lattner" :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47273 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 17:32:13 +00:00
Duncan Sands
3d5378ff8e Remove any 'nest' parameter attributes if the function
is not passed as an argument to a trampoline intrinsic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47220 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 20:56:04 +00:00
Chris Lattner
eedcf3fc46 remove some dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47066 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-13 17:18:26 +00:00
Duncan Sands
532d022794 Don't drop function/call return attributes like 'nounwind'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46645 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-01 20:37:16 +00:00
Chris Lattner
c69d3c9442 Don't let globalopt hack on volatile loads or stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46523 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-29 19:01:37 +00:00
Dan Gohman
3035959425 Use empty() instead of comparing size() with zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46514 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-29 13:02:09 +00:00
Chris Lattner
0818ea8317 Transform calls to memcpy into llvm.memcpy calls, patch by Eli Friedman.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46433 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-28 04:41:43 +00:00
Evan Cheng
b2fc2a330a DAE bug fix. Don't lose parameter attributes on vararg arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46113 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-17 04:18:54 +00:00
Chris Lattner
ab04e13a1f Fix arg promotion to propagate the correct attrs on the calls to
promoted functions.  This is important for varargs calls in 
particular.  Thanks to duncan for providing a great testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46108 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-17 01:17:03 +00:00
Chris Lattner
1e9aa716e9 Handle attribute(used) global variables that are i8.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46090 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16 21:35:43 +00:00
Devang Patel
8c231e5dda Do not strip llvm.used values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46045 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16 03:33:05 +00:00
Chris Lattner
941db495b8 Fix the miscompilation of MiBench/consumer-lame that was exposed by Evan's
byval work.  This miscompilation is due to the program indexing an array out
of range and us doing a transformation that broke this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45949 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-14 02:09:12 +00:00
Chris Lattner
6a93fc01a7 The isNotSuitableForSRA property is now dead, don't compute it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45948 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-14 01:32:52 +00:00
Chris Lattner
727c21084d Change SRAGlobal to not depend on isNotSuitableForSRA, which makes it very
difficult to understand the invariants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45947 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-14 01:31:05 +00:00
Chris Lattner
58e44f49dd Make the 'shrink global to bool' optimization more self contained, and thus
easier to show that its safe.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45946 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-14 01:17:44 +00:00
Duncan Sands
e3a8830c1d Small simplification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45932 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-13 08:12:17 +00:00
Chris Lattner
120d053e3b Allow clients to specify the inline threshold when creating
the inliner pass.  Patch by Robert Zeh.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45903 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-12 06:49:13 +00:00
Duncan Sands
bfc5ae6df0 When DAE drops the varargs part of a function, ensure any
attributes on the vararg call arguments are also dropped.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45892 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-11 23:13:45 +00:00
Chris Lattner
10603e0c84 Teach argpromote to ruthlessly hack small byval structs when it can
get away with it, which exposes opportunities to eliminate the memory
objects entirely.  For example, we now compile byval.ll to:

define internal void @f1(i32 %b.0, i64 %b.1) {
entry:
	%tmp2 = add i32 %b.0, 1		; <i32> [#uses=0]
	ret void
}

define i32 @main() nounwind  {
entry:
	call void @f1( i32 1, i64 2 )
	ret i32 0
}

This seems like it would trigger a lot for code that passes around small
structs (e.g. SDOperand's or _Complex)...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45886 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-11 22:31:41 +00:00
Chris Lattner
e027efa218 Use smallptrset instead of std::set for efficiency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45878 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-11 19:36:30 +00:00
Chris Lattner
170b1816b2 a byval argument is guaranteed to be valid to load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45877 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-11 19:34:32 +00:00
Chris Lattner
40c14be5bc Update this code to use eraseFromParent where possible. Compute
whether an argument is byval and pass into isSafeToPromoteArgument.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45876 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-11 19:20:39 +00:00
Chris Lattner
f1577014dd replace a loop with a constant time check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45875 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-11 18:55:10 +00:00
Chris Lattner
6e8410abf1 another minor datastructure tweak.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45874 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-11 18:47:45 +00:00
Chris Lattner
a10145fdf6 start using smallvector to avoid vector heap thrashing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45873 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-11 18:43:58 +00:00
Duncan Sands
6c3470efdc Small cleanup for handling of type/parameter attribute
incompatibility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45704 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 17:16:06 +00:00
Duncan Sands
ad9a9e1559 The transform that tries to turn calls to bitcast functions into
direct calls bails out unless caller and callee have essentially
equivalent parameter attributes.  This is illogical - the callee's
attributes should be of no relevance here.  Rework the logic, which
incidentally fixes a crash when removed arguments have attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45658 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-06 18:27:01 +00:00
Chris Lattner
9027b3cc7f Fix PR1896
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45568 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-04 05:04:53 +00:00
Chris Lattner
a114b14e5d add missing #include
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45516 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-02 23:41:05 +00:00
Chris Lattner
4ee451de36 Remove attribution from file headers, per discussion on llvmdev.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 20:36:04 +00:00