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Author SHA1 Message Date
Reid Spencer
3b08509917 Simplify code as a result of the change in GenericValue to have a single 
integer field of type APInt instead of different sized integer fields.

llvm-svn: 34952
 2007-03-06 03:11:31 +00:00
Reid Spencer
d333ccc051 Radically simplify execution. This patch gets rid of all the special 
handling for integer of various sizes. GenericValue now has just a single
integer field of type APInt. We use its facilities directly in the
execution of all instructions.

llvm-svn: 34951
 2007-03-06 03:09:31 +00:00
Reid Spencer
ccb2a63443 Adjust and simplify external function processing now that GenericValue has 
a single integer field of type APInt.

llvm-svn: 34950
 2007-03-06 03:08:12 +00:00
Reid Spencer
7985dd51a2 APInt's are no longer allocated on the heap because they are direct 
members of GenericValue. Consequently the code to clean them up isn't
needed.

llvm-svn: 34948
 2007-03-06 03:06:48 +00:00
Reid Spencer
0e27441b52 Remove the insufficient code in Interpreter::create that computed the 
Target DataLayout incorrectly. For now, we'll trust that the module has
got the correct DataLayout. In the future, this needs to be changed to
tell the TargetData to be "current host".

llvm-svn: 34947
 2007-03-06 03:05:57 +00:00
Reid Spencer
6243e2253d Simplify things significantly because GenericValue now has a single integer 
field, of type APInt, instead of multiple integer fields. Also, get rid of
the special endianness code in StoreValueToMemory and LoadValueToMemory.
ExecutionEngine is always used to execute on the host platform so this is
now unnecessary.

llvm-svn: 34946
 2007-03-06 03:04:04 +00:00
Reid Spencer
b5e0b0bc5e Make GenericeValue into a struct with a union instead of just a union. This 
allows an APInt value to be constructed. Remove all the native integer types
from the union. These are replaced with the single IntVal of type APInt.

llvm-svn: 34945
 2007-03-06 03:01:54 +00:00
Reid Spencer
d881b35e18 Test to ensure that data layout is generated correctly for host platform. 
This is for PR1242.

llvm-svn: 34944
 2007-03-06 03:00:17 +00:00
Devang Patel
e4da6fa801 Use std::deque to manage loop queue inside LPPassManager. 
llvm-svn: 34943
 2007-03-06 02:30:46 +00:00
Devang Patel
45343b04b3 Keep track of inherited analysis. For example, if a loop pass does not 
preserve dominator info then it should update parent FPPassManager's
available analysis info to reflect this.

llvm-svn: 34942
 2007-03-06 01:55:46 +00:00
Devang Patel
edbde240be Add preparePassManager() hook. This allows each pass to check whether 
current active pass manager is appropriate or not.

A loop pass may consider current LPPassManager in appropraite if loop
pass is not preserving analysis information that is used by other
passes managed by current LPPassManager. In such situation, loop pass
can pop current LPPassManager from the PMStack using this  hook
and use new LPPassManager for itself.

llvm-svn: 34941
 2007-03-06 01:06:16 +00:00
Chris Lattner
26a5492049 Switch PPC return lower to use an autogenerated CC description. 
llvm-svn: 34940
 2007-03-06 00:59:59 +00:00
Reid Spencer
db1c09aef1 Remove an unnecessary if statement and adjust indentation. 
llvm-svn: 34939
 2007-03-05 23:36:13 +00:00
Bill Wendling
c52174dee3 Add the emms intrinsic for MMX support. 
llvm-svn: 34938
 2007-03-05 23:09:45 +00:00
Reid Spencer
5ecf7f6214 Document the use of getValueType() more accurately, specifically explain 
that the instruction opcode is added to the InstructionVal value and the
consequences of that.

llvm-svn: 34937
 2007-03-05 23:06:32 +00:00
Devang Patel
79495d839e Current pass manager, not the parent pass manager, assumes the role of 
last user when one of the managed pass uses info provided by parent pass
manager.

This was exposed by LPPassManager work.

llvm-svn: 34936
 2007-03-05 22:57:49 +00:00
Reid Spencer
649c1d51a2 Add a test case for a particular udiv/select transform. 
llvm-svn: 34935
 2007-03-05 22:51:08 +00:00
Devang Patel
6668a341ae Avoid constructing std::strings unless pass debugging is ON. 
llvm-svn: 34933
 2007-03-05 20:01:30 +00:00
Devang Patel
ca90313b39 Account for time consumed by releaseMemory() properly. 
llvm-svn: 34932
 2007-03-05 18:20:51 +00:00
Lauro Ramos Venancio
3f855f6a54 Use init_array/fini_array sections for static contructors/destructors when the ABI is AAPCS. 
Fix SingleSource/Regression/C/ConstructorDestructorAttributes test on arm-linux-gnueabi.

llvm-svn: 34931
 2007-03-05 17:59:58 +00:00
Jeff Cohen
84d84f7381 The hack won't work on VS 2005, and it might not be needed anyway. 
llvm-svn: 34930
 2007-03-05 17:22:33 +00:00
Zhou Sheng
b6d1ac8682 Correct the calculation in APInt::logBase2(). 
llvm-svn: 34929
 2007-03-05 16:42:58 +00:00
Duncan Sands
ceef2090b3 Credit self for Ada front-end. 
llvm-svn: 34928
 2007-03-05 09:21:11 +00:00
Duncan Sands
5498a32001 Testcase for handling of static constant declarations in EmitBIND_EXPR. 
llvm-svn: 34927
 2007-03-05 08:39:58 +00:00
Duncan Sands
8aee7f8a56 Testcase causing the Ada front-end to create bogus constructor fields. 
llvm-svn: 34926
 2007-03-05 08:34:35 +00:00
Duncan Sands
964b80ff60 New directory for Ada testcases. Test handling of NON_LVALUE_EXPR. 
llvm-svn: 34925
 2007-03-05 08:20:48 +00:00
Chris Lattner
b0de2b2a9c This is the first major step of implementing PR1226. We now successfully 
scalarrepl things down to elements, but mem2reg can't promote elements that
are memset/memcpy'd.  Until then, the code is disabled "0 &&".

llvm-svn: 34924
 2007-03-05 07:52:57 +00:00
Jeff Cohen
01cb8d6857 Ensure 64-bit correctness. 
llvm-svn: 34923
 2007-03-05 05:45:08 +00:00
Jeff Cohen
5506bc49f9 Implement memoryLimit on Windows. 
llvm-svn: 34922
 2007-03-05 05:22:08 +00:00
Jeff Cohen
b58af23ff3 Elminate tabs and improve comments. 
llvm-svn: 34921
 2007-03-05 00:46:22 +00:00
Chris Lattner
4dfdbab24b fix a subtle bug that caused an MSVC warning. Thanks to Jeffc for pointing this out. 
llvm-svn: 34920
 2007-03-05 00:11:19 +00:00
Chris Lattner
4fadd9defa Add some simplifications for demanded bits, this allows instcombine to turn: 
define i64 @test(i64 %A, i32 %B) {
        %tmp12 = zext i32 %B to i64             ; <i64> [#uses=1]
        %tmp3 = shl i64 %tmp12, 32              ; <i64> [#uses=1]
        %tmp5 = add i64 %tmp3, %A               ; <i64> [#uses=1]
        %tmp6 = and i64 %tmp5, 123              ; <i64> [#uses=1]
        ret i64 %tmp6
}

into:

define i64 @test(i64 %A, i32 %B) {
        %tmp6 = and i64 %A, 123         ; <i64> [#uses=1]
        ret i64 %tmp6
}

This implements Transforms/InstCombine/add2.ll:test1

llvm-svn: 34919
 2007-03-05 00:02:29 +00:00
Chris Lattner
f05abaca7c new testcase 
llvm-svn: 34918
 2007-03-05 00:01:38 +00:00
Jeff Cohen
98c99a3a02 Unbreak VC++ build. 
llvm-svn: 34917
 2007-03-05 00:00:42 +00:00
Chris Lattner
7fdddda045 add a getSignBit method, elimiante virtual method from getBitMask() 
llvm-svn: 34916
 2007-03-04 23:33:19 +00:00
Chris Lattner
69aafa4be8 fix 80 col violations, mark arrays static 
llvm-svn: 34915
 2007-03-04 23:33:03 +00:00
Chris Lattner
0036009167 simplify some code 
llvm-svn: 34914
 2007-03-04 23:16:36 +00:00
Chris Lattner
8c7d418eaf fold away addc nodes when we know there cannot be a carry-out. 
llvm-svn: 34913
 2007-03-04 20:40:38 +00:00
Chris Lattner
295b3d69b1 add a new node 
llvm-svn: 34912
 2007-03-04 20:40:06 +00:00
Chris Lattner
fc3b6903e3 new testcase, corresponds to: 
long long test(long long A, unsigned B) {
  return (A + ((long long)B << 32));
}

llvm-svn: 34911
 2007-03-04 20:39:47 +00:00
Chris Lattner
7021449d8b generalize 
llvm-svn: 34910
 2007-03-04 20:08:45 +00:00
Chris Lattner
06e4ea2b21 canonicalize constants to the RHS of addc/adde. If nothing uses the carry out of 
addc, turn it into add.

This allows us to compile:

long long test(long long A, unsigned B) {
  return (A + ((long long)B << 32)) & 123;
}

into:

_test:
        movl $123, %eax
        andl 4(%esp), %eax
        xorl %edx, %edx
        ret

instead of:
_test:
        xorl %edx, %edx
        movl %edx, %eax
        addl 4(%esp), %eax   ;; add of zero
        andl $123, %eax
        ret

llvm-svn: 34909
 2007-03-04 20:03:15 +00:00
Chris Lattner
bac1a46d92 eliminate some ops if they have an undef RHS 
llvm-svn: 34908
 2007-03-04 20:01:46 +00:00
Chris Lattner
241e2e2e3d fix typo 
llvm-svn: 34906
 2007-03-04 06:36:24 +00:00
Chris Lattner
6d7701714e add missing braces 
llvm-svn: 34905
 2007-03-04 06:13:52 +00:00
Chris Lattner
758a83d1b0 minor cleanups 
llvm-svn: 34904
 2007-03-04 04:50:21 +00:00
Reid Spencer
d3481fbeec Remove unneeded header file. 
llvm-svn: 34903
 2007-03-04 04:41:04 +00:00
Chris Lattner
de2b4322ff Speed up -instcombine by 20% by avoiding a particularly expensive passmgr call. 
llvm-svn: 34902
 2007-03-04 04:27:24 +00:00
Chris Lattner
f2304552f7 switch MarkAliveBlocks over to using SmallPtrSet instead of std::set, speeding 
up simplifycfg by 20%

llvm-svn: 34901
 2007-03-04 04:20:48 +00:00
Chris Lattner
dec6a90a00 Speed up Loop::isLCSSAForm by using a hash table instead of a sorted vector. 
llvm-svn: 34900
 2007-03-04 04:06:39 +00:00