Commit Graph

4495 Commits

Author SHA1 Message Date
Bill Wendling
30b483c940 Encapsulate the "construct*AlignmentFromInt" functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164373 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-21 16:07:28 +00:00
Bill Wendling
ef99fe8efa Make the 'get*AlignmentFromAttr' functions into member functions within the Attributes class. Now with fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164370 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-21 15:26:31 +00:00
Bill Wendling
4aa189909a Revert r164308 to fix buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164309 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-20 16:59:57 +00:00
Bill Wendling
f2e89e00b4 Make the 'get*AlignmentFromAttr' functions into member functions within the Attributes class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164308 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-20 16:27:05 +00:00
Bill Wendling
342cea9a0a Remove more bare uses of the different Attribute enums.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164307 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-20 15:20:36 +00:00
Bill Wendling
8ce1e432d1 Make the 'getAsString' function a method of the Attributes class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164305 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-20 14:44:42 +00:00
Bill Wendling
e603fe4664 Convert some attribute existence queries over to use the predicate methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164268 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-19 23:54:18 +00:00
Micah Villmow
3e9b6db60f Add in new data types that are used by AMDIL/ANL among others.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164261 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-19 22:47:07 +00:00
Duncan Sands
4caf5281bf Add support for accessing an MDNode's operands via the C binding. Patch by
Anthony Bryant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164247 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-19 20:29:39 +00:00
Nadav Rotem
f7876426f0 whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164203 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-19 06:24:00 +00:00
Craig Topper
c2945e44d5 Mark unimplemented copy constructors and copy assignment operators as LLVM_DELETED_FUNCTION.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164090 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18 02:01:41 +00:00
Craig Topper
86a1c32e67 Use LLVM_DELETED_FUNCTION in place of 'DO NOT IMPLEMENT' comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163974 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-15 17:09:36 +00:00
Dan Gohman
b54834b7e6 Define an official slot for the new !tbaa.struct metadata tag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163815 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13 17:56:17 +00:00
Micah Villmow
d3766dfd2c Unify the emission of the calling conventions into a single function to reduce code duplication.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163805 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13 15:11:12 +00:00
Eric Christopher
e521278f00 Recommit, with fixes:
Add some support for dealing with an object pointer on arguments.

    Part of rdar://9797999

which now supports adding the object pointer attribute to the
subprogram as it should.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163754 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12 23:36:19 +00:00
Eric Christopher
fd1cd57221 Revert "Add some support for dealing with an object pointer on arguments."
This should be done on the subprogram, not the variable itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163734 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12 18:42:31 +00:00
Duncan Sands
79da6ef84f When calling print directly on a global (eg from the debugger) it
was printing a newline that doesn't occur when printing other kinds
of LLVM values.  Move the printing of that newline elsewhere, making
globals print the same as other values while leaving the output when
printing an entire module unchanged.  Patch by Saša Tomić.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163693 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12 09:55:51 +00:00
Eric Christopher
2c57a334d7 Add some support for dealing with an object pointer on arguments.
Part of rdar://9797999

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163667 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12 00:26:55 +00:00
Benjamin Kramer
c1cbfa805b c bindings: revert LLVMConstInlineAsm to always use the default asm dialect.
- The C API should be stable
- InlineAsm::AsmDialect is not exposed to C
- The function didn't match the prototype so this was unreachable code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163502 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10 11:52:00 +00:00
Roman Divacky
5932429765 Stop casting away const qualifier needlessly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163258 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-05 22:26:57 +00:00
Chad Rosier
581600bfc3 [ms-inline asm] Enumerate the InlineAsm dialects and rename the nsdialect to
inteldialect.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163231 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-05 19:00:49 +00:00
Chad Rosier
36547343ab [ms-inline asm] Emit the (new) inline asm Non-Standard Dialect attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163181 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-05 00:08:17 +00:00
Chad Rosier
03fe8f6ab6 [ms-inline asm] Add the inline assembly dialect, AsmDialect, to the InlineAsm
class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163175 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-04 22:46:24 +00:00
Chad Rosier
4e2132e7ae [ms-inline asm] Remove the Inline Asm Non-Standard Dialect attribute. This
implementation does not co-exist well with how the sideeffect and alignstack
attributes are handled.  The reverts r161641.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163174 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-04 22:29:45 +00:00
Bill Wendling
e4fb6eae99 Move the GCOVFormat enums into their own namespace per the LLVM coding standard.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163008 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-31 17:31:28 +00:00
NAKAMURA Takumi
54cbadc2e2 Apply "/Og-" also to MSC15(aka VS9) on VMCore/Function.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162917 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-30 16:22:26 +00:00
Eli Friedman
fd45fa1503 Make atomic load and store of pointers work. Tighten verification of atomic operations
so other unexpected operations don't slip through.  Based on patch by Logan Chien.
PR11786/PR13186.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162146 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-17 23:24:29 +00:00
Bill Wendling
32811bef95 Change the linker_private_weak_def_auto' linkage to linkonce_odr_auto_hide' to
make it more consistent with its intended semantics.

The `linker_private_weak_def_auto' linkage type was meant to automatically hide
globals which never had their addresses taken. It has nothing to do with the
`linker_private' linkage type, which outputs the symbols with a `l' (ell) prefix
among other things.

The intended semantic is more like the `linkonce_odr' linkage type.

Change the name of the linkage type to `linkonce_odr_auto_hide'. And therefore
changing the semantics so that it produces the correct output for the linker.

Note: The old linkage name `linker_private_weak_def_auto' will still parse but
is not a synonym for `linkonce_odr_auto_hide'. This should be removed in 4.0.
<rdar://problem/11754934>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162114 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-17 18:33:14 +00:00
Rafael Espindola
d5118c8f78 Assert that dominates is not given a multiple edge. Finding out if we have
multiple edges between two blocks is linear. If the caller is iterating all
edges leaving a BB that would be a square time algorithm. It is more efficient
to have the callers handle that case.

Currently the only callers are:
* GVN: already avoids the multiple edge case.
* Verifier: could only hit this assert when looking at an invalid invoke. Since
it already rejects the invoke, just avoid computing the dominance for it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162113 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-17 18:21:28 +00:00
Rafael Espindola
0513059726 Teach GVN to reason about edges dominating uses. This allows it to handle cases
where some fact lake a=b dominates a use in a phi, but doesn't dominate the
basic block itself.

This feature could also be implemented by splitting critical edges, but at least
with the current algorithm reasoning about the dominance directly is faster.

The time for running "opt -O2" in the testcase in pr10584 is 1.003 times slower
and on gcc as a single file it is 1.0007 times faster.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162023 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-16 15:09:43 +00:00
Nick Lewycky
c2de3ddb23 Fix a typo that led to a failure to correctly verify bitcast instructions.
Patch by Stephen Hines!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161921 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-15 02:37:07 +00:00
Eric Christopher
a61d3a98c4 Typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161826 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-14 01:09:10 +00:00
Eli Friedman
6b951b25c3 The normal edge of an invoke is not allowed to branch to a block with a
landingpad.  Enforce it in the verifier, and fix the regression tests to match.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161697 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-10 20:55:20 +00:00
Rafael Espindola
25ac7518ff Move BasicBlockEdge to the cpp file. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161663 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-10 14:05:55 +00:00
Chad Rosier
249d670dd0 [ms-inline asm] Add a new Inline Asm Non-Standard Dialect attribute.
This new attribute is intended to be used by the backend to determine how
the inline asm string should be parsed/printed. This patch adds the 
ia_nsdialect attribute and also adds a test case to ensure the IR is
correctly parsed, but there is no functional change at this time.

The standard dialect is assumed to be AT&T.  Therefore, this attribute
should only be added to MS-style inline assembly statements, which use
the Intel dialect.  If we ever support more dialects we'll need to
add additional state to the attribute.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161641 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-10 00:00:22 +00:00
Rafael Espindola
702bcce747 The dominance computation already has logic for computing if an edge dominates
a use or a BB, but it is inline in the handling of the invoke instruction.

This patch refactors it so that it can be used in other cases. For example, in

define i32 @f(i32 %x) {
bb0:
  %cmp = icmp eq i32 %x, 0
  br i1 %cmp, label %bb2, label %bb1
bb1:
  br label %bb2
bb2:
  %cond = phi i32 [ %x, %bb0 ], [ 0, %bb1 ]
  %foo = add i32 %cond, %x
  ret i32 %foo
}

GVN should be able to replace %x with 0 in any use that is dominated by the
true edge out of bb0. In the above example the only such use is the one in
the phi.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161429 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-07 17:30:46 +00:00
Benjamin Kramer
189f231a4b Postpone the deletion of the old name in StructType::setName to allow using a slice of the old name.
Fixes PR13522. Add a rudimentary unit test to exercise the behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161296 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-04 09:47:02 +00:00
Bill Wendling
573e973267 Move the "findUsedStructTypes" functionality outside of the Module class.
The "findUsedStructTypes" method is very expensive to run. It needs to be
optimized so that LTO can run faster. Splitting this method out of the Module
class will help this occur. For instance, it can keep a list of seen objects so
that it doesn't process them over and over again.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161228 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03 00:30:35 +00:00
Micah Villmow
b3fb028ebd Add support for v16i32/v16i64 into the code generator. This is required for backends that use i32/i64 vectors for the getSetCCResultType function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160814 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-26 21:22:00 +00:00
Chandler Carruth
7325f06051 Fix a dangling StringRef bug in the auto upgrader. In one case, we reset
CI's name, and then used the StringRef pointing at its old name. I'm
fixing it by storing the name in a std::string, and hoisting the
renaming logic to happen always. This is nicer anyways as it will allow
the upgraded IR to have the same names as the input IR in more cases.

Another bug found by AddressSanitizer. Woot.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160572 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-20 21:09:18 +00:00
Benjamin Kramer
4cdd17ef47 Pull the simple parts of DenseMapInfo<DebugLoc> inline and prune includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160507 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-19 15:00:34 +00:00
Bill Wendling
56cb229866 Remove tabs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160477 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-19 00:11:40 +00:00
Victor Oliveira
1ef3b6c90d Adding some debug information to PassManager
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160446 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-18 19:59:29 +00:00
Joel Jones
7c82e6a32a More replacing of target-dependent intrinsics with target-indepdent
intrinsics.  The second instruction(s) to be handled are the vector versions 
of count set bits (ctpop).

The changes here are to clang so that it generates a target independent 
vector ctpop when it sees an ARM dependent vector bits set count.  The changes 
in llvm are to match the target independent vector ctpop and in 
VMCore/AutoUpgrade.cpp to update any existing bc files containing ARM 
dependent vector pop counts with target-independent ctpops.  There are also 
changes to an existing test case in llvm for ARM vector count instructions and 
to a test for the bitcode upgrade.

<rdar://problem/11892519>

There is deliberately no test for the change to clang, as so far as I know, no
consensus has been reached regarding how to test neon instructions in clang;
q.v. <rdar://problem/8762292>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160410 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-18 00:02:16 +00:00
Aaron Ballman
09dab827b2 MSVC's implementation of isalnum will assert on characters > 255, so we need to use an unsigned char to ensure the integer promotion happens properly. This fixes an assert in debug builds with CodeGen\X86\utf8.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160286 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-16 16:18:18 +00:00
Joel Jones
06a6a300c5 This is one of the first steps at moving to replace target-dependent
intrinsics with target-indepdent intrinsics.  The first instruction(s) to be 
handled are the vector versions of count leading zeros (ctlz).

The changes here are to clang so that it generates a target independent 
vector ctlz when it sees an ARM dependent vector ctlz.  The changes in llvm 
are to match the target independent vector ctlz and in VMCore/AutoUpgrade.cpp 
to update any existing bc files containing ARM dependent vector ctlzs with 
target-independent ctlzs.  There are also changes to an existing test case in 
llvm for ARM vector count instructions and a new test for the bitcode upgrade.

<rdar://problem/11831778>

There is deliberately no test for the change to clang, as so far as I know, no
consensus has been reached regarding how to test neon instructions in clang;
q.v. <rdar://problem/8762292>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160200 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-13 23:25:25 +00:00
Galina Kistanova
a46517e13f Fixed few warnings; trimmed empty lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160159 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-13 01:25:27 +00:00
Bill Wendling
9cb22d6c8c Use the DebugInfo wrappers instead of mucking about with the MDNode directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159881 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-07 00:52:35 +00:00
Bill Wendling
ee17cee77c Print the name last.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159879 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06 23:43:12 +00:00
Bill Wendling
625252f427 Check if it's a scope last, because several things are scopes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159873 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06 23:06:16 +00:00
Bill Wendling
2da1a1621f Add a print method to the ObjC property object.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159848 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06 19:12:31 +00:00
Bill Wendling
9fdb7c0853 Remove trailing comma in array initialization list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159843 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06 17:49:19 +00:00
Bill Wendling
f46b497b7f Remove unnecessary 'llvm::'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159842 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06 17:47:36 +00:00
Bill Wendling
0735e81b3a Remove unnecessary 'llvm::'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159841 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06 17:46:28 +00:00
Eric Christopher
87c06a843c Untabify and move a function near similar functions dealing with struct
types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159801 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06 02:35:57 +00:00
Nuno Lopes
0fd518beb3 PHINode::hasConstantValue(): return undef if the PHI is fully recursive.
Thanks Duncan for the idea

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159687 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-03 21:15:40 +00:00
Bill Wendling
86b032b2ab Use the DebugInfo's 'print()' method to emit the comments.
These give quite a bit more information about the DebugInfo and makes it more
readable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159680 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-03 20:01:02 +00:00
Nuno Lopes
44d5c06488 improve PHINode::hasConstantValue() to detect recursive cases like %phi = phi(%phi,42) as constant
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159666 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-03 17:10:28 +00:00
Chandler Carruth
06cb8ed006 Move llvm/Support/IRBuilder.h -> llvm/IRBuilder.h
This was always part of the VMCore library out of necessity -- it deals
entirely in the IR. The .cpp file in fact was already part of the VMCore
library. This is just a mechanical move.

I've tried to go through and re-apply the coding standard's preferred
header sort, but at 40-ish files, I may have gotten some wrong. Please
let me know if so.

I'll be committing the corresponding updates to Clang and Polly, and
Duncan has DragonEgg.

Thanks to Bill and Eric for giving the green light for this bit of cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159421 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 12:38:19 +00:00
Bill Wendling
1a3b28b97f Update the CMake files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159417 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 09:01:47 +00:00
Bill Wendling
16eeb6f5eb The DIBuilder class is just a wrapper around debug info creation
(a.k.a. MDNodes). The module doesn't belong in Analysis. Move it to the VMCore
instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159414 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 08:32:07 +00:00
Nuno Lopes
917f97c580 make the verifier accept @llvm.donothing as the only intrinsic that can be invoked
While at it, merge 2 tests and FileCheckize them

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159388 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 22:57:00 +00:00
Benjamin Kramer
ceb5bc7df1 Devirtualize DIScope and subclasses.
Nothing in here makes use of the virtuality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159349 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 14:25:45 +00:00
Hal Finkel
ec4e85e336 Refactor operation equivalence checking in BBVectorize by extending Instruction::isSameOperationAs.
Maintaining this kind of checking in different places is dangerous, extending
Instruction::isSameOperationAs consolidates this logic into one place. Here
I've added an optional flags parameter and two flags that are important for
vectorization: CompareIgnoringAlignment and CompareUsingScalarTypes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159329 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 05:42:26 +00:00
Bill Wendling
97a759249d Only print out the tag if it's there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159328 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 02:17:58 +00:00
Bill Wendling
fc1c70a8a4 Don't output an empty string.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159327 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 02:12:20 +00:00
Bill Wendling
58a6cf2c62 Use the interface through DIDescriptor to get the tag/version for a debug info
MDNode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159317 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 00:41:44 +00:00
Bill Wendling
0064851c0b Fix cmake failure from moving files around.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159314 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 00:18:12 +00:00
Bill Wendling
0bcbd1df7a Move lib/Analysis/DebugInfo.cpp to lib/VMCore/DebugInfo.cpp and
include/llvm/Analysis/DebugInfo.h to include/llvm/DebugInfo.h.

The reasoning is because the DebugInfo module is simply an interface to the
debug info MDNodes and has nothing to do with analysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159312 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 00:05:13 +00:00
Nuno Lopes
3769fe149b improve optimization of invoke instructions:
- simplifycfg:  invoke undef/null -> unreachable
 - instcombine:  invoke new  -> invoke expect(0, 0)  (an arbitrary NOOP intrinsic;  only done if the allocated memory is unused, of course)
 - verifier:  allow invoke of intrinsics  (to make the previous step work)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159146 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 17:11:47 +00:00
NAKAMURA Takumi
d5c407d2d0 llvm/lib: [CMake] Add explicit dependency to intrinsics_gen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159112 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 13:32:01 +00:00
NAKAMURA Takumi
a1c8420f1b VMCore/CMakeLists.txt: [CMake][MSVC] Add "/Og-" to Function.cpp on msvc10. Otherwise, it took over 20 minutes to compile.
FIXME: Suppressing optimizations to core libraries would not be good thing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159097 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-24 03:48:29 +00:00
Hans Wennborg
6de8ffbbc9 Clean-up after r159077.
Remove temporary GlobalVariable constructors now that Clang has been
updated (r159078).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159079 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-23 12:14:23 +00:00
Hans Wennborg
ce718ff9f4 Extend the IL for selecting TLS models (PR9788)
This allows the user/front-end to specify a model that is better
than what LLVM would choose by default. For example, a variable
might be declared as

  @x = thread_local(initialexec) global i32 42

if it will not be used in a shared library that is dlopen'ed.

If the specified model isn't supported by the target, or if LLVM can
make a better choice, a different model may be used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159077 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-23 11:37:03 +00:00
Stepan Dyatkovskiy
43c3a4a7e7 Fixed r158979.
Original message:
Performance optimizations:
- SwitchInst: case values stored separately from Operands List. It allows to make faster access to individual case value numbers or ranges.
- Optimized IntItem, added APInt value caching.
- Optimized IntegersSubsetGeneric: added optimizations for cases when subset is single number or when subset consists from single numbers only.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158997 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-22 14:53:30 +00:00
Duncan Sands
37eeb058a3 Revert commit 158979 (dyatkovskiy) since it is causing several buildbots to
fail.  Original commit message:

Performance optimizations:
- SwitchInst: case values stored separately from Operands List. It allows to make faster access to individual case value numbers or ranges.
- Optimized IntItem, added APInt value caching.
- Optimized IntegersSubsetGeneric: added optimizations for cases when subset is single number or when subset consists from single numbers only.

On my machine these optimizations gave about 4-6% of compile-time improvement.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158986 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-22 10:35:06 +00:00
Stepan Dyatkovskiy
7351256208 Performance optimizations:
- SwitchInst: case values stored separately from Operands List. It allows to make faster access to individual case value numbers or ranges.
- Optimized IntItem, added APInt value caching.
- Optimized IntegersSubsetGeneric: added optimizations for cases when subset is single number or when subset consists from single numbers only.

On my machine these optimizations gave about 4-6% of compile-time improvement.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158979 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-22 07:35:13 +00:00
Nuno Lopes
f6fc855a00 revert r158660, since Chris has some issues with this patch (namely using code to reprent information only used by the compiler)
Original commit msg:
add the 'alloc' metadata node to represent the size of offset of buffers pointed to by pointers.
This metadata can be attached to any instruction returning a pointer


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158688 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18 23:34:26 +00:00
Nuno Lopes
fa7494306b add the 'alloc' metadata node to represent the size of offset of buffers pointed to by pointers.
This metadata can be attached to any instruction returning a pointer


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158660 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18 16:04:04 +00:00
Hal Finkel
7b4ff9343d Move the Metadata merging methods from GVN and make them public in MDNode.
There are other passes, BBVectorize specifically, that also need some of
this functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158605 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16 20:33:37 +00:00
Duncan Sands
ee5a094ccf When linearizing a multiplication, return at once if we see a factor of zero,
since then the entire expression must equal zero (similarly for other operations
with an absorbing element).  With this in place a bunch of reassociate code for
handling constants is dead since it is all taken care of when linearizing.  No
intended functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158398 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-13 09:42:13 +00:00
Craig Topper
cc95b57d42 Fix intrinsics for XOP frczss/sd instructions. These instructions only take one source register and zero the upper bits of the destination rather than preserving them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158396 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-13 07:18:53 +00:00
Duncan Sands
c038a78335 Now that Reassociate's LinearizeExprTree can look through arbitrary expression
topologies, it is quite possible for a leaf node to have huge multiplicity, for
example: x0 = x*x, x1 = x0*x0, x2 = x1*x1, ... rapidly gives a value which is x
raised to a vast power (the multiplicity, or weight, of x).  This patch fixes
the computation of weights by correctly computing them no matter how big they
are, rather than just overflowing and getting a wrong value.  It turns out that
the weight for a value never needs more bits to represent than the value itself,
so it is enough to represent weights as APInts of the same bitwidth and do the
right overflow-avoiding dance steps when computing weights.  As a side-effect it
reduces the number of multiplies needed in some cases of large powers.  While
there, in view of external uses (eg by the vectorizer) I made LinearizeExprTree
static, pushing the rank computation out into users.  This is progress towards
fixing PR13021.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158358 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-12 14:33:56 +00:00
Nadav Rotem
3c98ce242e Add AutoUpgrade support for the SSE4 ptest intrinsics.
Patch by Michael Kuperstein.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158295 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-10 18:42:51 +00:00
Craig Topper
c29106b36f Replace XOP vpcom intrinsics with fewer intrinsics that take the immediate as an argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158278 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-09 16:46:13 +00:00
Craig Topper
bb6e61cf6b Simplify the fma4 renaming code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157902 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-03 16:48:52 +00:00
Craig Topper
7678de45b2 Autoupgrade support the rename of x86.fma4 intrinsics to x86.fma from r157898.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157899 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-03 08:07:25 +00:00
Benjamin Kramer
d9b0b02561 Fix typos found by http://github.com/lyda/misspell-check
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157885 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-02 10:20:22 +00:00
Stepan Dyatkovskiy
43eb31bfae PR1255: case ranges.
IntRange converted from struct to class. So main change everywhere is replacement of ".Low/High" with ".getLow/getHigh()"



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157884 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-02 09:42:43 +00:00
Rafael Espindola
2090766f6e Use dominates(Instruction, Use) in the verifier.
This removes a bit of context from the verifier erros, but reduces code
duplication in a fairly critical part of LLVM and makes dominates easier to test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157845 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-01 21:56:26 +00:00
Stepan Dyatkovskiy
f8d14c4ca3 PR1255: case ranges.
IntItem cleanup. IntItemBase, IntItemConstantIntImp and IntItem merged into IntItem. All arithmetic operators was propogated from APInt. Also added comparison operators <,>,<=,>=. Currently you will find set of macros that propogates operators from APInt to IntItem in the beginning of IntegerSubset. Note that THESE MACROS WILL REMOVED after all passes will case-ranges compatible. Also note that these macros much smaller pain that something like this:
if (V->getValue().ugt(AnotherV->getValue()) { ... }

These changes made IntItem full featured integer object. It allows to make IntegerSubset class generic (move out all ConstantInt references inside and add unit-tests) in next commits.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157810 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-01 10:06:14 +00:00
Rafael Espindola
a1b95f53cc Fix typos noticed by Benjamin Kramer.
Also make the checks stronger and test that we reject ranges that overlap
a previous wrapped range.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157749 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-31 16:04:26 +00:00
Rafael Espindola
c49b29ef5d Require intervals in the range metadata to be in a canonical form: They must
be non contiguous, non overlapping and sorted by the lower end.

While this is technically a backward incompatibility, every frontent currently
produces range metadata with a single interval and we don't have any pass
that merges intervals yet, so no existing bitcode files should be rejected by
this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157741 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-31 13:45:46 +00:00
Stepan Dyatkovskiy
0aa32d5d0f ConstantRangesSet renamed to IntegersSubset. CRSBuilder renamed to IntegersSubsetMapping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157612 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-29 12:26:47 +00:00
Stepan Dyatkovskiy
484fc93eff PR1255: Case Ranges
Implemented IntItem - the wrapper around APInt. Why not to use APInt item directly right now?
1. It will very difficult to implement case ranges as series of small patches. We got several large and heavy patches. Each patch will about 90-120 kb. If you replace ConstantInt with APInt in SwitchInst you will need to changes at the same time all Readers,Writers and absolutely all passes that uses SwitchInst.
2. We can implement APInt pool inside and save memory space. E.g. we use several switches that works with 256 bit items (switch on signatures, or strings). We can avoid value duplicates in this case.
3. IntItem can be easyly easily replaced with APInt.
4. Currenly we can interpret IntItem both as ConstantInt and as APInt. It allows to provide SwitchInst methods that works with ConstantInt for non-updated passes.

Why I need it right now? Currently I need to update SimplifyCFG pass (EqualityComparisons). I need to work with APInts directly a lot, so peaces of code
ConstantInt *V = ...;
if (V->getValue().ugt(AnotherV->getValue()) {
  ...
}
will look awful. Much more better this way:
IntItem V = ConstantIntVal->getValue();
if (AnotherV < V) {
}

Of course any reviews are welcome.

P.S.: I'm also going to rename ConstantRangesSet to IntegersSubset, and CRSBuilder to IntegersSubsetMapping (allows to map individual subsets of integers to the BasicBlocks).
Since in future these classes will founded on APInt, it will possible to use them in more generic ways.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157576 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-28 12:39:09 +00:00
Chris Lattner
d509d0b532 switch AttrListPtr::get to take an ArrayRef, simplifying a lot of clients.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157556 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-28 01:47:44 +00:00
Chris Lattner
2a9d3b79db simplify code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157555 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-28 01:37:08 +00:00
Chris Lattner
55dc5c77a3 Reimplement the intrinsic verifier to use the same table as Intrinsic::getDefinition,
making it stronger and more sane.

Delete the code from tblgen that produced the old code.

Besides being a path forward in intrinsic sanity, this also eliminates a bunch of
machine generated code that was compiled into Function.o


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157545 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-27 19:37:05 +00:00
Chris Lattner
908a831a9a move some code around so that Verifier.cpp can get access to the intrinsic info table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157540 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-27 18:28:35 +00:00
Chris Lattner
b4654c1c49 enhance the intrinsic info table to encode what *kind* of Any argument
it is (at the cost of 45 bytes of extra table space) so that the verifier can
start using it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-27 16:39:08 +00:00
Tobias Grosser
057beb8d4f Add half support to LLVM (for OpenCL)
Submitted by: Anton Lokhmotov  <Anton.Lokhmotov@arm.com>

Approved by: o Anton Korobeynikov
             o Micah Villmow
             o David Neto

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157393 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-24 15:59:06 +00:00
Patrik Hägglund
9ce6f6fe5e Fixed typo in r156905.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157320 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-23 12:34:56 +00:00
Chris Lattner
a48289a672 small refinement to r157218 to save a tiny amount of table size in the common
case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157312 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-23 05:19:18 +00:00
Nuno Lopes
23e75da7e0 revert my previous patches that introduced an additional parameter to the objectsize intrinsic.
After a lot of discussion, we realized it's not the best option for run-time bounds checking

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157255 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-22 15:25:31 +00:00
Pete Cooper
b428511989 Added address space qualifier to intrinsic PointerType arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157218 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-21 23:21:28 +00:00
Stepan Dyatkovskiy
1c8f4b8c34 PR1255 (case ranges: work with ConstantRangesSet instead of ConstantInt) related changes for Execution and Verifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157183 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-21 10:44:40 +00:00
Benjamin Kramer
4e4c3408a5 Move CallbackVHs dtor inline, it can be devirtualized in many cases. Move the other virtual methods out of line as they are only called from within Value.cpp anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157123 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-19 19:15:25 +00:00
Chris Lattner
387c9dcdda enhance the intrinsic info stuff to emit encodings that don't fit in 32-bits into a
separate side table, using the handy SequenceToOffsetTable class.  This encodes all
these weird things into another 256 bytes, allowing all intrinsics to be encoded this way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156995 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-17 15:55:41 +00:00
Manuel Klimek
e9f5d2ea8b Fix compile error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156986 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-17 09:32:05 +00:00
Chris Lattner
626b108619 Genericize the intrinsics descriptor decoding a bit to make room
for future expansion, no functionality change yet though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156979 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-17 05:13:57 +00:00
Chris Lattner
d7cf5eb021 finish encoding all of the interesting details of intrinsics. Now intrinsics
are only rejected because they can't be encoded into a 32-bit unit, not because
they contain an unencodable feature.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156978 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-17 05:03:24 +00:00
Chris Lattner
46aaf69e37 strengthen the intrinsic descriptor stuff to be able to handle sin, cos and other
intrinsics that use passed-in arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156977 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-17 04:30:58 +00:00
Chris Lattner
a98aa6ad1e Significantly reduce the compiled size of Functions.cpp by turning a big blob of tblgen
generated code (for Intrinsic::getType) into a table.  This handles common cases right now,
but I plan to extend it to handle all cases and merge in type verification logic as well
in follow-on patches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156905 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-16 06:34:44 +00:00
Bill Wendling
c6db6b6f26 Use ArrayRef instead of an explicit vector type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156755 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-14 07:53:40 +00:00
Stepan Dyatkovskiy
1cce5bf8ef Recommited r156374 with critical fixes in BitcodeReader/Writer:
Ordinary patch for PR1255.
Added new case-ranges orientated methods for adding/removing cases in SwitchInst. After this patch cases will internally representated as ConstantArray-s instead of ConstantInt, externally cases wrapped within the ConstantRangesSet object.
Old methods of SwitchInst are also works well, but marked as deprecated. So on this stage we have no side effects except that I added support for case ranges in BitcodeReader/Writer, of course test for Bitcode is also added. Old "switch" format is also supported.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156704 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-12 10:48:17 +00:00
Jay Foad
b7454fd9df Teach Function::hasAddressTaken that BlockAddress doesn't really take
the address of a function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156703 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-12 08:30:16 +00:00
Joel Jones
9df72a93ef Fix a problem with incomplete equality testing of PHINodes in
Instruction::IsIdenticalToWhenDefined.

This manifested itself when inlining two calls to the same function.  The 
inlined function had a switch statement that returned one of a set of 
global variables.  Without this modification, the two phi instructions that 
chose values from the branches of the switch instruction inlined from the 
callee were considered equivalent and jump-threading replaced a load for the 
first switch value with a phi selecting from the second switch, thereby 
producing incorrect code.

This patch has been tested with "make check-all", "lnt runteste nt", and 
llvm self-hosted, and on the original program that had this problem, 
wireshark.

<rdar://problem/11025519>



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156548 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-10 15:59:41 +00:00
Hans Wennborg
5c87b4958d Introduce llvm-c function LLVMPrintModuleToFile.
This lets you save the textual representation of the LLVM IR to a file.
Before this patch it could only be printed to STDERR from llvm-c.

Patch by Carlo Kok!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156479 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-09 16:54:17 +00:00
Nuno Lopes
30759542aa change the objectsize intrinsic signature: add a 3rd parameter to denote the maximum runtime performance penalty that the user is willing to accept.
This commit only adds the parameter. Code taking advantage of it will follow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156473 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-09 15:52:43 +00:00
Stepan Dyatkovskiy
1f9838347f Rejected r156374: Ordinary PR1255 patch. Due to clang-x86_64-debian-fnt buildbot failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156377 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-08 08:33:21 +00:00
Craig Topper
189bce48c7 Remove 256-bit AVX non-temporal store intrinsics. Similar was previously done for 128-bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156375 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-08 06:58:15 +00:00
Stepan Dyatkovskiy
85a4406959 Ordinary patch for PR1255.
Added new case-ranges orientated methods for adding/removing cases in SwitchInst. After this patch cases will internally representated as ConstantArray-s instead of ConstantInt, externally cases wrapped within the ConstantRangesSet object.
Old methods of SwitchInst are also works well, but marked as deprecated. So on this stage we have no side effects except that I added support for case ranges in BitcodeReader/Writer, of course test for Bitcode is also added. Old "switch" format is also supported.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156374 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-08 06:36:08 +00:00
Dan Gohman
03e091f0b5 Reapply r155682, making constant folding more consistent, with a fix to work
properly with how the code handles all-undef PHI nodes.


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2012-04-27 17:50:22 +00:00
NAKAMURA Takumi
d213ee7643 Revert r155682, "Use ConstantExpr::getExtractElement when constant-folding vectors"
It broke stage2 build. stage1/clang sometimes crashed.

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2012-04-27 07:59:20 +00:00
Dan Gohman
97b44f9b80 Use ConstantExpr::getExtractElement when constant-folding vectors
instead of getAggregateElement. This has the advantage of being
more consistent and allowing higher-level constant folding to
procede even if an inner extract element cannot be folded.

Make ConstantFoldInstruction call ConstantFoldConstantExpression
on the instruction's operands, making it more consistent with 
ConstantFoldConstantExpression itself. This makes sure that
ConstantExprs get TargetData-aware folding before being handed
off as operands for further folding.

This causes more expressions to be folded, but due to a known
shortcoming in constant folding, this currently has the side effect
of stripping a few more nuw and inbounds flags in the non-targetdata
side of constant-fold-gep.ll. This is mostly harmless.

This fixes rdar://11324230.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155682 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-27 00:54:36 +00:00
Bill Wendling
4866363304 Don't forget to reset 'first operand' flag when we're setting the MDNodeOperand value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155599 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-26 00:38:42 +00:00
Nadav Rotem
80c1ea6f9b ConstantFoldSelectInstruction swapped the operands of the select.
Fix 12592. Patch by Matt Pharr.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155480 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-24 20:18:49 +00:00
Bill Wendling
85d043d6f6 Cleanup whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155328 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-23 00:23:33 +00:00
Bill Wendling
098c595dd2 Limit the number of times we recurse through this algorithm. All of the
intructions are processed. So there's no need to look at them if they're used as
operands of other instructions.


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2012-04-23 00:22:55 +00:00
Bill Wendling
d46575f190 Add a flag to the struct type finder to collect only those types which have
names. This saves collecting types we normally don't care about.


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2012-04-21 23:59:16 +00:00
Bill Wendling
c827834d49 Revert r155241, which is causing some breakage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155253 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20 23:11:38 +00:00
Bill Wendling
64c7af8900 If we discover all of the named structs in a module, then don't bother to
process any more Values.


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2012-04-20 21:56:24 +00:00
Craig Topper
a963c81819 Remove AVX vpermil intrinsics. I removed their uses from clang headers and builtins a while back.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154985 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-18 05:24:00 +00:00
Eric Christopher
cf84d86761 Typo.
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2012-04-16 23:54:31 +00:00
Duncan Sands
2867c85a37 Remove support for the special 'fast' value for fpmath accuracy for the moment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154850 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-16 19:39:33 +00:00
Duncan Sands
8883c43ddc Make it possible to indicate relaxed floating point requirements at the IR level
through the use of 'fpmath' metadata.  Currently this only provides a 'fpaccuracy'
value, which may be a number in ULPs or the keyword 'fast', however the intent is
that this will be extended with additional information about NaN's, infinities
etc later.  No optimizations have been hooked up to this so far.


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2012-04-16 16:28:59 +00:00
Duncan Sands
5e5c5f8259 Rename "fpaccuracy" metadata to the more generic "fpmath". That's because I'm
thinking of generalizing it to be able to specify other freedoms beyond accuracy
(such as that NaN's don't have to be respected).  I'd like the 3.1 release (the
first one with this metadata) to have the more generic name already rather than
having to auto-upgrade it in 3.2.


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2012-04-14 12:36:06 +00:00
Dan Gohman
0120f7913f Def here is an Instruction, so !isa<Instruction>(Def) is always false,
as Eli noticed.


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2012-04-13 00:50:57 +00:00
Dan Gohman
558ece284c Add forms of dominates and isReachableFromEntry that accept a Use
directly instead of a user Instruction. This allows them to test
whether a def dominates a particular operand if the user instruction
is a PHI.


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2012-04-12 23:31:46 +00:00
Benjamin Kramer
611afc0620 Cache the hash value of the operands in the MDNode.
FoldingSet is implemented as a chained hash table. When there is a hash
collision during insertion, which is common as we fill the table until a
load factor of 2.0 is hit, we walk the chained elements, comparing every
operand with the new element's operands. This can be very expensive if the
MDNode has many operands.

We sacrifice a word of space in MDNode to cache the full hash value, reducing
compares on collision to a minimum. MDNode grows from 28 to 32 bytes + operands
on x86. On x86_64 the new bits fit nicely into existing padding, not growing
the struct at all.

The actual speedup depends a lot on the test case and is typically between
1% and 2% for C++ code with clang -c -O0 -g.

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2012-04-11 14:06:54 +00:00
Benjamin Kramer
7484920cf5 Compute hashes directly with hash_combine instead of taking a detour through FoldingSetNodeID.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154495 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11 14:06:39 +00:00
Bill Wendling
3ecb447f52 The MDString class stored a StringRef to the string which was already in a
StringMap. This was redundant and unnecessarily bloated the MDString class.

Because the MDString class is a "Value" and will never have a "name", and
because the Name field in the Value class is a pointer to a StringMap entry, we
repurpose the Name field for an MDString. It stores the StringMap entry in the
Name field, and uses the normal methods to get the string (name) back.

PR12474


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2012-04-10 20:12:16 +00:00
Duncan Sands
1fd63df693 Express the number of ULPs in fpaccuracy metadata as a real rather than a
rational number, eg as 2.5 rather than 5, 2.  OK'd by Peter Collingbourne.


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2012-04-10 08:22:43 +00:00
Bill Wendling
69b2c71abb Remove the 'Parent' pointer from the MDNodeOperand class.
An MDNode has a list of MDNodeOperands allocated directly after it as part of
its allocation. Therefore, the Parent of the MDNodeOperands can be found by
walking back through the operands to the beginning of that list. Mark the first
operand's value pointer as being the 'first' operand so that we know where the
beginning of said list is.

This saves a *lot* of space during LTO with -O0 -g flags.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154280 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-08 10:20:49 +00:00
Bill Wendling
5252c432dd Allow subclasses of the ValueHandleBase to store information as part of the
value pointer by making the value pointer into a pointer-int pair with 2 bits
available for flags.


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2012-04-08 10:16:43 +00:00
Bill Wendling
5fdf475697 The speedup doesn't appear to have been from this, but was an anomaly of my testing machine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153951 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-03 11:19:21 +00:00
Bill Wendling
f563fc35c8 Reserve space for the eventual filling of the vector. This gives a small speedup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153949 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-03 10:50:09 +00:00
Duncan Sands
4000afe712 I noticed in passing that the Metadata getIfExists method was creating a new
node and returning it if one didn't exist.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153798 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-31 08:20:11 +00:00
Rafael Espindola
092c5ccf5b Handle unreachable code in the dominates functions. This changes users when
needed for correctness, but still doesn't clean up code that now unnecessary
checks for reachability.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153755 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30 16:46:21 +00:00
Douglas Gregor
5dc8055667 Add missing include of <new>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153436 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-26 14:04:17 +00:00