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15235 Commits

Author SHA1 Message Date
Chris Lattner
0c5b8dac79 Non-allocatable physregs can be killed and dead, but don't treat them as 
safe for later allocation.  This fixes McCat/18-imp with llc-beta.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30204 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 20:21:31 +00:00
Chris Lattner
cc406328bf This fixes Benchmarks/Prolangs-C/unix-smail 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30198 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 19:11:11 +00:00
Chris Lattner
45d5788123 Fix a bunch of llc-beta failures on x86 yesterday. Don't allow selection 
of unallocatable registers, just because an alias is allocatable.  We were
picking registers like SIL just because ESI was being used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30197 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 19:03:30 +00:00
Rafael Espindola
0a200600e7 implement shl and sra 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30191 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 17:36:23 +00:00
Chris Lattner
40f4ba5e71 Use __USER_LABEL_PREFIX__ to get the prefix added by the current host. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30190 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 17:03:56 +00:00
Rafael Espindola
4e30764d55 add the eor (xor) instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30189 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 16:59:47 +00:00
Jim Laskey
f45c25f720 Missing tab 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30188 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 13:06:56 +00:00
Rafael Espindola
5c2aa0a4d8 implement unconditional branches 
fix select.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30186 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 12:47:03 +00:00
Evan Cheng
36978b9c61 Remove TEST64mr. It's same as TEST64rm since and is commutative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30178 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 06:56:55 +00:00
Evan Cheng
25ab690a43 Committing X86-64 support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30177 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 06:48:29 +00:00
Nate Begeman
6fe6084ebf We actually do support object file writing, so don't return true (error) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30173 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 03:42:15 +00:00
Evan Cheng
8cf723d8eb - Identify a vector_shuffle that can be turned into an undef, e.g. 
shuffle V1, <undef>, <undef, undef, 4, 5>
- Fix some suspicious logic into LowerVectorShuffle that cause less than
  optimal code by failing to identify MOVL (move to lowest element of a
  vector).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30171 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 01:50:06 +00:00
Jim Laskey
fde1b3bb2f 1. Remove condition on delete. 
2. Protect and outline createTargetAsmInfo.

3. Misc. kruft.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30169 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 23:39:26 +00:00
Devang Patel
f93f68347f Untabify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30168 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 23:29:19 +00:00
Devang Patel
c8719e9353 Use iterative do-while loop instead of recursive DFSPass calls to 
reduce amount of stack space used at runtime.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30167 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 23:22:37 +00:00
Chris Lattner
2dd538c2d2 add a new value for the command line optn 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30165 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 22:32:28 +00:00
Chris Lattner
cdb341dcfa Fix a cross-build issue. The asmsyntax shouldn't be affected by the build 
host, it should be affected by the target.  Allow the command line option to
override in either case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30164 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 22:29:41 +00:00
Jim Laskey
a0f3d17daa Make target asm info a property of the target machine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30162 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 22:06:40 +00:00
Jim Laskey
8e8de8f776 Break out target asm info into separate files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30161 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 22:05:02 +00:00
Chris Lattner
e99c623e75 Throttle back tail duplication to avoid creating really ugly sequences of code. 
For Transforms/TailDup/if-tail-dup.ll, f.e., it produces:

_foo:
        movl 8(%esp), %eax
        movl 4(%esp), %ecx
        testl $1, %ecx
        je LBB1_2       #cond_next
LBB1_1: #cond_true
        movl $1, (%eax)
LBB1_2: #cond_next
        testl $2, %ecx
        je LBB1_4       #cond_next10
LBB1_3: #cond_true6
        movl $1, 4(%eax)
LBB1_4: #cond_next10
        testl $4, %ecx
        je LBB1_6       #cond_next18
LBB1_5: #cond_true14
        movl $1, 8(%eax)
LBB1_6: #cond_next18
        testl $8, %ecx
        je LBB1_8       #return
LBB1_7: #cond_true22
        movl $1, 12(%eax)
        ret
LBB1_8: #return
        ret

instead of:

_foo:
        movl 4(%esp), %eax
        testl $2, %eax
        sete %cl
        movl 8(%esp), %edx
        testl $1, %eax
        je LBB1_2       #cond_next
LBB1_1: #cond_true
        movl $1, (%edx)
        testb %cl, %cl
        jne LBB1_4      #cond_next10
        jmp LBB1_3      #cond_true6
LBB1_2: #cond_next
        testb %cl, %cl
        jne LBB1_4      #cond_next10
LBB1_3: #cond_true6
        movl $1, 4(%edx)
        testl $4, %eax
        je LBB1_6       #cond_next18
        jmp LBB1_5      #cond_true14
LBB1_4: #cond_next10
        testl $4, %eax
        je LBB1_6       #cond_next18
LBB1_5: #cond_true14
        movl $1, 8(%edx)
        testl $8, %eax
        je LBB1_8       #return
        jmp LBB1_7      #cond_true22
LBB1_6: #cond_next18
        testl $8, %eax
        je LBB1_8       #return
LBB1_7: #cond_true22
        movl $1, 12(%edx)
        ret
LBB1_8: #return
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30158 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 21:30:15 +00:00
Chris Lattner
ffc0b2663e Eliminate X86ISD::TEST, using X86ISD::CMP instead. Match X86ISD::CMP patterns 
using test, which provides nice simplifications like:

-       movl %edi, %ecx
-       andl $2, %ecx
-       cmpl $0, %ecx
+       testl $2, %edi
        je LBB1_11      #cond_next90

There are a couple of dagiselemitter deficiencies that this exposes, they will
be handled later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30156 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 20:33:45 +00:00
Chris Lattner
b14ca605d7 Some notes on better load folding we could do 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30155 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 20:32:01 +00:00
Evan Cheng
ec3bc39413 Consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30152 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 19:03:48 +00:00
Evan Cheng
61c958e691 Fix pasto that was breaking x86 tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30151 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 18:50:20 +00:00
Chris Lattner
833eb68a1f Add new option to leave asm names alone 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30149 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 18:20:41 +00:00
Jim Laskey
05a059d5d8 Make the x86 asm flavor part of the subtarget info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30146 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 12:23:47 +00:00
Chris Lattner
d5e93c0795 Fix CodeGen/Generic/2006-09-06-SwitchLowering.ll, a bug where SDIsel inserted 
too many phi operands when lowering a switch to branches in some cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30142 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 01:59:34 +00:00
Evan Cheng
95971c51b0 Clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30140 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 01:17:57 +00:00
Evan Cheng
48ff2fb129 Watch out for variable_ops instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30135 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-06 20:32:45 +00:00
Evan Cheng
3530bafe00 Variable ops instructions may ignore the last few operands for code emission. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30134 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-06 20:24:14 +00:00
Jim Laskey
7c95ad4fb0 Oops - forgot to update banner. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30131 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-06 19:21:41 +00:00
Jim Laskey
ec0d9fe2b2 Separate target specifc asm properties from asm printers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30127 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-06 18:35:33 +00:00
Jim Laskey
563321a258 Separate target specific asm properties from the asm printers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30126 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-06 18:34:40 +00:00
Rafael Espindola
b52b54d4af add the orr instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30125 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-06 18:03:12 +00:00
Evan Cheng
5d8062bcee Only call isUse/isDef on register operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30122 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 20:32:06 +00:00
Chris Lattner
6cdb1ea610 Bugfix to work with the two-addr changes that have been made in the tree recently 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30121 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 20:27:32 +00:00
Chris Lattner
d8f44e07b8 Only call isUse/isDef on register operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30118 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 20:19:27 +00:00
Chris Lattner
67942f5dc3 Don't call isDef on non-registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30117 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 20:02:51 +00:00
Chris Lattner
97d2dbd100 Fix Duraid's changes to work when TLI is null. This fixes the failing 
lowerinvoke regtests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30115 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 17:48:07 +00:00
Chris Lattner
7acf5f39fe Change the default to 0, which means 'default'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30114 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 17:39:15 +00:00
Evan Cheng
2f5993bcf1 Fix a few dejagnu failures. e.g. fast-cc-merge-stack-adj.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30113 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 08:32:49 +00:00
Evan Cheng
23b3122c44 JIT encoding bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30112 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 05:59:25 +00:00
Chris Lattner
0e42d81a83 Update the X86 JIT to make it work with the new two-addr changes. This also 
adds assertions that check to make sure every operand gets emitted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30110 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 02:52:35 +00:00
Chris Lattner
09e460662a Completely eliminate def&use operands. Now a register operand is EITHER a 
def operand or a use operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30109 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 02:31:13 +00:00
Chris Lattner
2926869b4a Fix a long-standing wart in the code generator: two-address instruction lowering 
actually *removes* one of the operands, instead of just assigning both operands
the same register.  This make reasoning about instructions unnecessarily complex,
because you need to know if you are before or after register allocation to match
up operand #'s with the target description file.

Changing this also gets rid of a bunch of hacky code in various places.

This patch also includes changes to fold loads into cmp/test instructions in
the X86 backend, along with a significant simplification to the X86 spill
folding code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30108 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 02:12:02 +00:00
Andrew Lenharth
89c0b4a90e jmp_bufs are this big on alpha. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30107 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 00:22:25 +00:00
Rafael Espindola
3a02f020eb add support for returning 64bit values 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30103 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 19:05:01 +00:00
Chris Lattner
2130b99eb2 Fix some X86 JIT failures. This should really come from TargetJITInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30102 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 18:48:41 +00:00
Chris Lattner
dffb2e83ed Correct fix for a crasher on functions with live in values 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30099 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 18:27:40 +00:00
Chris Lattner
5277e4304e Hack around a regression I introduced yesterday 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30098 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 18:20:15 +00:00
Duraid Madina
0c9e0ff249 forgot this 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30097 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 07:44:11 +00:00
Duraid Madina
2a0013f59f add setJumpBufSize() and setJumpBufAlignment() to target-lowering. 
Call these from your backend to enjoy setjmp/longjmp goodness, see
lib/Target/IA64/IA64ISelLowering.cpp for an example


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30095 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 06:21:35 +00:00
Chris Lattner
47877050e7 new file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30082 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 04:16:09 +00:00
Chris Lattner
1911fd4f85 Completely rearchitect the interface between targets and the pass manager. 
This pass:

1. Splits TargetMachine into TargetMachine (generic targets, can be implemented
any way, like the CBE) and LLVMTargetMachine (subclass of TM that is used by
things using libcodegen and other support).
2. Instead of having each target fully populate the passmgr for file or JIT
   output, move all this to common code, and give targets hooks they can
   implement.
3. Commonalize the target population stuff between file emission and JIT
   emission.
4. All (native code) codegen stuff now happens in a FunctionPassManager, which
   paves the way for "fast -O0" stuff in the CFE later, and now LLC could
   lazily stream .bc files from disk to use less memory.
5. There are now many fewer #includes and the targets don't depend on the
   scalar xforms or libanalysis anymore (but codegen does).
6. Changing common code generator pass ordering stuff no longer requires
   touching all targets.
7. The JIT now has the option of "-fast" codegen or normal optimized codegen,
   which is now orthogonal to the fact that JIT'ing is being done.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30081 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 04:14:57 +00:00
Chris Lattner
dd842e12e1 Add accessor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30080 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 04:08:58 +00:00
Chris Lattner
b2cd4bac87 Add explicit doInitialization/doFinalization methods instead of making 
the FunctionPassManager redo this for each function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30079 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 04:07:39 +00:00
Chris Lattner
3199af2874 remove #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30078 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-04 04:06:01 +00:00
Chris Lattner
c4fa386471 Simplify target construction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30070 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 18:44:02 +00:00
Chris Lattner
c50b76f61d eliminate use of TM.getName() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30068 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 18:37:12 +00:00
Rafael Espindola
bc4cec9a62 add the SETULT condition code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30067 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 13:19:16 +00:00
Chris Lattner
6b128bdc58 Avoid beating on the mi2i map when we know the answer already. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30066 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 08:07:11 +00:00
Chris Lattner
fbecc5a593 minor speedup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30065 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 07:53:50 +00:00
Chris Lattner
5e50349070 Fix Regression/CodeGen/Generic/2006-09-02-LocalAllocCrash.ll on X86. 
Just because an alias of a register is available, it doesn't mean that we
can arbitrarily evict the register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30064 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 07:15:37 +00:00
Chris Lattner
2ac0d43fa2 When deleting a machine instruction, make sure to remove it from the 
livevariables information.  This fixes several regalloc=local failures on x86


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30062 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 00:06:08 +00:00
Chris Lattner
7a3abdc63c Move two methods out of line, make them work when the record for a machine 
instruction includes physregs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30061 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 00:05:09 +00:00
Chris Lattner
1c57be4a40 Count the time for a pass to ReleaseMemory against that pass. Not doing this 
was under accounting for the time that livevariables cost


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30060 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 23:09:24 +00:00
Owen Anderson
b833e5ac3f Make ArgumentPromotion handle recursive functions that pass pointers in their recursive calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30057 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 21:19:44 +00:00
Rafael Espindola
5f450d2948 add more condition codes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30056 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 20:24:25 +00:00
Nick Lewycky
a3a68bde21 Improve handling of SelectInst. 
Reorder operations to remove duplicated work.
Fix to leave floating-point types out of the optimization.
Add tests to predsimplify.ll for SwitchInst and SelectInst handling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30055 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 19:40:38 +00:00
Chris Lattner
94425996c5 improve compat with certain versions of GCC (on cygwin?) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30054 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 17:37:30 +00:00
Chris Lattner
1acb17cb83 Iteration is required for some cases, even if they don't occur in crafty. 
Restore it, which re-fixes X86/2006-08-21-ExtraMovInst.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30050 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 05:32:53 +00:00
Chris Lattner
f21f0205b5 When joining two intervals where the RHS is really simple, use a light-weight 
method for joining the live ranges instead of the fully-general one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30049 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-02 05:26:59 +00:00
Evan Cheng
1453de5aa9 Oops. Bad typo. Without the check of N1.hasOneUse() bad things can happen. 
Suppose the TokenFactor can reach the Op:

       [Load chain]
           ^
           |
         [Load]
         ^    ^
         |    |
        /      \-
       /         |
      /          [Op]
     /          ^ ^
     |        ..  |
     |       /    |
   [TokenFactor]  |
       ^          |
       |          |
        \        /
         \      /
         [Store]

If we move the Load below the TokenFactor, we would have created a cycle in
the DAG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30040 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 22:52:28 +00:00
Chris Lattner
aca36b9329 Use a couple of multiclass patterns to factor some integer ops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30039 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 22:28:02 +00:00
Chris Lattner
1662239a5e remove a bunch of comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30038 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 22:16:22 +00:00
Anton Korobeynikov
7d51544903 - Fixed broken Win32 build 
- Removed warning about clobbered parameter in Bytecode/Reader


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30026 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 20:35:17 +00:00
Evan Cheng
b5aaee0027 Remove extra spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30025 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 18:45:22 +00:00
Evan Cheng
78050d6cbe Last check-in was a mistake... 
I've been told apple gcc version number is not guaranteed to increase
monotonically. Change the preprocess condition to make it less risky.

The configuration change is done during the middle 10.4 life cycle so we have
to check __APPLE_CC. For future OS X release, we should be able to assume
-fenable-cxa-atexit is the default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30024 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 18:42:59 +00:00
Evan Cheng
4f260b4efa *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30023 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 18:40:46 +00:00
Evan Cheng
3f4fd0fd64 Allow legalizer to expand ISD::MUL using only MULHS in the rare case that is 
possible and the target only supports MULHS.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30022 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 18:17:58 +00:00
Jim Laskey
3ebe71db6b Corrections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30021 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 12:55:05 +00:00
Evan Cheng
fb9c0d7e31 Better comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30017 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 07:09:56 +00:00
Evan Cheng
5f271aff5c Yikes. This requires checking apple gcc version. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30016 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 07:00:46 +00:00
Chris Lattner
8a67f6e848 Pull some code out of a hot recursive function because the common case doesn't 
need recursion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30015 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 07:00:23 +00:00
Chris Lattner
238416c99b Reserve space in the ValueNumberInfo vector. This speeds up live interval 
analysis 16% on crafty.

Wrap long lines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30012 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 06:10:18 +00:00
Chris Lattner
a2a8f0919d Iterative coallescing doesn't buy us anything (we get identical results on 
crafty with and without it).  Removing it speeds up live intervals 6%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30010 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 04:02:42 +00:00
Nick Lewycky
7218c28822 Don't confuse canonicalize and lookup. Fixes predsimplify.reg4.ll. Also 
corrects missing optimization opportunity removing cases from a switch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30009 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-01 03:26:35 +00:00
Evan Cheng
dfcfacb0cb DAG combiner fix for rotates. Previously the outer-most condition checks 
for ROTL availability. This prevents it from forming ROTR for targets that
has ROTR only.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29997 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-31 07:41:12 +00:00
Chris Lattner
2ebfa0c618 Add a special case that speeds up coallescing a bit, but not enough. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29996 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-31 06:48:26 +00:00
Chris Lattner
bfe180af9e Delete copies as they are coallesced instead of waiting until the end. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29995 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-31 05:58:59 +00:00
Chris Lattner
91725b7585 avoid calling the virtual isMoveInstr method endlessly by caching its results. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29994 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-31 05:54:43 +00:00
Nick Lewycky
6e39c7ed1e Properties where both Values weren't in the union (as being equal to 
another Value) weren't being found by findProperties.

This fixes predsimplify.ll test6, a missed optimization opportunity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29991 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-31 00:39:16 +00:00
Chris Lattner
ba256037ce Fix a compiler crash bootstrapping llvm-gcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29989 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-30 23:02:29 +00:00
Chris Lattner
9b0d6f4ca6 Guess what happens when asserts are disabled. :( 
Also, the assert could never fire due to || instead of &&.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29977 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-30 20:37:06 +00:00
Chris Lattner
52c917190a Instantiate Statistic<> in one place, not in every .o file that uses it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29971 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-30 04:17:00 +00:00
Nick Lewycky
3947a76e21 Move to using the EquivalenceClass ADT. Removes SynSets. 
If a branch's condition has become a ConstantBool, simplify it immediately.
Removing the edge saves work and exposes up more optimization opportunities
in the pass.
Add support for SelectInst.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29970 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-30 02:46:48 +00:00
Chris Lattner
6d8fbef015 Teach the coallescer to coallesce live intervals joined by an arbitrary 
number of copies, potentially defining live ranges that appear to have
differing value numbers that become identical when coallsced.  Among other
things, this fixes CodeGen/X86/shift-coalesce.ll and PR687.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29968 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 23:18:15 +00:00
Devang Patel
4b8f36f106 Do not rely on std::sort and std::erase to get list of unique 
exit blocks. The output is dependent on addresses of basic block.

Add and use Loop::getUniqueExitBlocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29966 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 22:29:16 +00:00
Evan Cheng
c9676deb23 Minor asm fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29965 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 22:14:48 +00:00
Evan Cheng
4a888584ea Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29962 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 21:42:58 +00:00
Evan Cheng
780413d462 Don't performance load/op/store transformation if op produces a floating point 
or vector result. X86 does not have load/mod/store variants of those
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29957 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 18:37:37 +00:00
Evan Cheng
e50794adda - Enable x86 isel preprocessing by default unless -fast is specified. 
- Also disable isel load folding if -fast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29956 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 18:28:33 +00:00
Jim Laskey
ce50a165c7 Handle callee saved registers in dwarf frame info (lead up to exception 
handling.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29954 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 16:24:26 +00:00
Jim Laskey
85aaf9088e Tidy up options. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29953 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 15:13:10 +00:00
Evan Cheng
82a35b34fb Avoid making unneeded load/mod/store transformation which can hurt performance. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29952 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 06:44:17 +00:00
Evan Cheng
1efba0ecb4 Move isCommutativeBinOp from SelectionDAG.cpp and DAGCombiner.cpp out. Make it a static method of SelectionDAG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29951 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 06:42:35 +00:00
Owen Anderson
d648e140a5 Clean up a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29950 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 06:10:56 +00:00
Nate Begeman
06abd22b1a Make ppc64 jit kinda work right. About 2/3 of Olden passes with this, 
there are clearly some encoding bugs lurking in there somewhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29949 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-29 02:30:59 +00:00
Nick Lewycky
05450ae128 Add PredicateSimplifier pass. Collapses equal variables into one form 
and simplifies expressions. This implements the optimization described
in PR807.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29947 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-28 22:44:55 +00:00
Evan Cheng
67afeceaf0 On Mac, print jump table entries after the function to work around a linker issue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29946 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-28 22:14:16 +00:00
Evan Cheng
70e674e95e Add an optional pass to preprocess the DAG before x86 isel to allow selecting more load/mod/store instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29943 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-28 20:10:17 +00:00
Owen Anderson
59312b19a6 Make LoopUnroll fold excessive BasicBlocks. This results in a significant speedup of 
gccas on 252.eon


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29936 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-28 02:09:46 +00:00
Reid Spencer
3a9ec2463d For PR387: 
Close out this long standing bug by removing the remaining overloaded
virtual functions in LLVM. The -Woverloaded-virtual option is now turned on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29934 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-28 01:02:49 +00:00
Chris Lattner
a5370172b6 simplify AnalysisGroup registration, eliminating one typeid call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29932 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-28 00:42:29 +00:00
Chris Lattner
6e60002a73 Silence -Woverloaded-virtual warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29929 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-28 00:09:00 +00:00
Chris Lattner
7f8897f22e eliminate RegisterOpt. It does the same thing as RegisterPass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29925 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-27 22:42:52 +00:00
Chris Lattner
43d64b8526 Fit to 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29922 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-27 22:31:12 +00:00
Chris Lattner
5d8925c7c5 Eliminate RegisterAnalysis. RegisterPass now does all that is necessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29921 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-27 22:30:17 +00:00
Chris Lattner
2dd3d423aa We no longer care whether something is an opt vs analysis pass, only whether 
something is a pass vs an analysis group now.  Simplify interfaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29920 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-27 22:21:55 +00:00
Chris Lattner
232885873f Minor code cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29917 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-27 22:10:29 +00:00
Chris Lattner
a4f0b3a084 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h| 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29911 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-27 12:54:02 +00:00
Chris Lattner
c9d94d1290 typo fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29910 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-27 12:47:48 +00:00
Chris Lattner
7422a76100 Add external definitions for commonly-used template specializations and add 
anchor methods to others.  This eliminates the vtable/template method bloat
in .o files that defining a cl::opt used to impose (~4K per .o file for one
cp::opt<unsigned>).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29909 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-27 12:45:47 +00:00
Evan Cheng
0b828e08f9 Do not use getTargetNode() and SelectNodeTo() which takes more than 3 
SDOperand arguments. Use the variants which take an array and number instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29907 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-27 08:14:06 +00:00
Evan Cheng
694481ee01 Eliminate SelectNodeTo() and getTargetNode() variants which take more than 
3 SDOperand operands. They are replaced by versions which take an array
of SDOperand and the number of operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29905 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-27 08:08:54 +00:00
Chris Lattner
16c7fe5ca3 Fix target matching weights, so that ppc-darwin modules are codegen with the 
ppc target, not the itanium target, when run on an itanium machine.
This should fix the CodeGen/PowerPC regtest failures on itanium.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29903 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-26 21:33:05 +00:00
Nate Begeman
d2030e6c99 Properly size the string table, and emit symbol table and string table 
entries in the correct order, fixing several fixmes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29902 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-26 15:46:34 +00:00
Evan Cheng
95514bae73 SelectNodeTo now returns a SDNode*. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29901 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-26 08:00:10 +00:00
Evan Cheng
9ade218533 Select() no longer require Result operand by reference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29898 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-26 05:34:46 +00:00
Chris Lattner
e7f729b42b Simplifications to liveinterval analysis, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29896 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-26 01:28:16 +00:00
Evan Cheng
6da2f3268d Match tblgen changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29895 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-26 01:07:58 +00:00
Evan Cheng
0469990e79 Match tblgen changes; clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29894 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-26 01:05:16 +00:00
Chris Lattner
8d3e1d6613 Give a good error message when we try to jit inline asm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29891 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-26 00:47:03 +00:00
Chris Lattner
c114b2cad7 Completely change the way that joining with physregs is implemented. This 
paves the way for future changes, increases coallescing opportunities (in
theory, not witnessed in practice), and eliminates the really expensive
LiveIntervals::overlapsAliases method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29890 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 23:41:24 +00:00
Evan Cheng
1822ffbab7 Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29889 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 23:29:06 +00:00
Jim Laskey
08ede262a7 Tidy up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29888 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 22:56:30 +00:00
Owen Anderson
203572552d Fix a crash related to updating Phi nodes in the original header block. This was 
causing a crash in 175.vpr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29887 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 22:13:55 +00:00
Owen Anderson
eb70591492 Add an assertion to check that we're really preserving LCSSA. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29886 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 22:12:36 +00:00
Evan Cheng
b9ca92661c Encode pc-relative conditional branch offset as pc+(num of bytes / 4). The 
asm printer will print it as offset*4. e.g. bne cr0, $+8.

The PPC code emitter was expecting the offset to be number of instructions, not
number of bytes. This fixes a whole bunch of JIT failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29885 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 21:54:44 +00:00
Reid Spencer
0554575567 For PR797: 
Make the Win32 code exception free (untested/uncompiled) which forced some
interface changes which had ripple effect. This should be the last of 797.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29884 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 21:37:17 +00:00
Reid Spencer
99655e16a6 For PR797: 
Final commit for this bug. This removes the last EH holdouts in LLVM
and turns off exception support by using the -fno-exceptions option. This
leads to the following reduction in library and executable sizes:
                DEBUG BUILD                RELEASE BUILD
         before     after   delta     before   after    delta
lib    162,328K  157,616K   4,712    17,864K  16,416K  1,448K
bin    571,444K  557,156K  14,288    63,296K   56,996K 6,300K

Debug   Improvement: 19,000K (2.59%)
Release Improvement:  7,748K (9.55%)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29882 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 19:54:53 +00:00
Jim Laskey
f3e4f0e615 Consolidate callee saved register information so that it can me used by debug 
information and exception handling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29881 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 19:45:51 +00:00
Jim Laskey
4c2c9031ac Fix some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29880 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 19:40:59 +00:00
Jim Laskey
3d3d404b8a Allow for register numbers > 31. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29879 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 19:39:52 +00:00
Rafael Espindola
755be9b3de use @ for comments 
store LR in an arbitrary stack slot
add support for writing varargs functions


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29876 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 17:55:16 +00:00
Reid Spencer
0b5a504d10 For PR797: 
Remove exception throwing/handling from lib/Bytecode, and adjust its users
to compensate for changes in the interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29875 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 17:43:11 +00:00
Owen Anderson
ac12322710 Reapply the indvars patch, since nothing blew up last night. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29874 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 17:41:25 +00:00
Nate Begeman
f8f2c5a172 Get closer to handling globals correctly. We now generally get them in the 
right section.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29871 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 06:36:58 +00:00
Owen Anderson
b397d81f03 Revert my previous patch. Since there are some major changes that went in today, 
I'm going to wait to put this in HEAD until tomorrow, so as not to clutter the nightly
tester.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29868 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 03:45:57 +00:00
Owen Anderson
8a24749cb8 Specify that indvars actually preserve LCSSA. This has been done for a while, but I 
forgot to put in the analysis usage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29867 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-25 03:32:13 +00:00
Reid Spencer
0ff2d31766 For PR797: 
Remove exception handling from the bytecode archiver and adjust the llvm-ar
tool to accommodate the new interfaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29866 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-24 23:45:08 +00:00
Chris Lattner
c82b3aab65 When replacing value numbers, make sure to compactify the value # space. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29865 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-24 23:22:59 +00:00
Chris Lattner
bf16982e86 We compile this into: 
_swap_16:
        slwi r2, r3, 24
        rlwimi r2, r3, 8, 8, 15
        srwi r3, r2, 16
        blr

now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29864 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-24 23:06:02 +00:00
Chris Lattner
ad69970c4a Owen implemented this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29863 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-24 23:03:33 +00:00
Chris Lattner
f7da2c7b0c Take advantage of the recent improvements to the liveintervals set (tracking 
instructions which define each value#) to simplify and improve the coallescer.
In particular, this patch:

1. Implements iterative coallescing.
2. Reverts an unsafe hack from handlePhysRegDef, superceeding it with a
   better solution.
3. Implements PR865, "coallescing" away the second copy in code like:

   A = B
   ...
   B = A

This also includes changes to symbolically print registers in intervals
when possible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29862 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-24 22:43:55 +00:00
Reid Spencer
7b7a1be856 Remove a character to avoid line exceeding 80 cols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29860 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-24 22:39:25 +00:00
Owen Anderson
3b53c4ee91 Implement unrolling of multiblock loops. This significantly improves the 
utility of the LoopUnroll pass.

Also, add a testcase for multiblock-loop unrolling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29859 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-24 21:28:19 +00:00
Reid Spencer
30300996b3 For PR797: 
Adjust implementation to match the new interface after exception handling
was removed in the Unix verison. NOTE: this hasn't been compiled yet!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29858 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-24 18:58:37 +00:00
Rafael Espindola
cdda88cd12 add the "eq" condition code 
implement a movcond instruction


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29857 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-24 17:19:08 +00:00
Rafael Espindola
6f602de3b6 create a generic bcond instruction that has a conditional code argument 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29856 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-24 16:13:15 +00:00
Rafael Espindola
687bc49d1a initial support for branches 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29854 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-24 13:45:55 +00:00
Nate Begeman
eb883af390 Initial checkin of the Mach-O emitter. There's plenty of fixmes, but it 
does emit linkable .o files in very simple cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29850 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-23 21:08:52 +00:00
Reid Spencer
81bc5088dd For PR797: 
This library no longer throws nor handles exceptions, so turn off the
REQUIRES_EH flag.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29849 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-23 20:39:25 +00:00
Reid Spencer
30493372f3 For PR797: 
Final remove of exception handling from this file. lib/System can no longer
throw exceptions so there's no need for try/catch blocks here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29848 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-23 20:37:59 +00:00
Reid Spencer
4c97bed5d9 Turn off exception handling for this library. It no longer throws nor 
handles exceptions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29847 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-23 20:35:51 +00:00
Reid Spencer
51c5a286ba For PR797: 
Final removal of exceptions from lib/System and adjustment of users to
accommodate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29846 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-23 20:34:57 +00:00
Reid Spencer
5a060775da For PR797: 
Eliminate exception throwing from Path::renamePathOnDisk and adjust its
users correspondingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29843 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-23 07:30:48 +00:00
Reid Spencer
6f4c60770c Make the ProgramName variable a std::string so we can eliminate the path 
portion fo the program name via sys::Path().getLast(). This makes error
messages more readable since this is invariably used only in error
messages.  Instead of:
  /path/to/llvm/bin/directory/toolname: error message
we will now get:
  toolname: error message
Also, since we always have a program name (even if its defaulted), don't
check to see if it is set or not when generating error messages. This
eliminates a bunch of constant strings, saving a little under 1K of data.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29842 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-23 07:10:06 +00:00
Reid Spencer
142ca8e818 For PR797: 
Remove exception throwing from Path::getDirectoryContents and its users.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29841 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-23 06:56:27 +00:00
Reid Spencer
e5c9cb5eb6 For PR797: 
Remove exceptions from the Path::create*OnDisk methods. Update their users
to handle error messages via arguments and result codes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29840 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-23 00:39:35 +00:00
Reid Spencer
a34a15765d For PR797: 
Adjust code to compensate for Path class interface change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29837 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 23:54:35 +00:00
Reid Spencer
e1647f4698 For PR797: 
Change the Path::make*OnDisk methods exception free and adjust their usage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29836 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 23:27:23 +00:00
Reid Spencer
cab0e43829 Update for changes in Path class interface for exception removal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29834 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 22:46:39 +00:00
Reid Spencer
487447626c Make the sys::Path::GetTemporaryDirectory method not throw exceptions and 
adjust users of it to compensate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29831 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 19:01:30 +00:00
Chris Lattner
be4f88a8b8 Improve the LiveInterval class to keep track of which machine instruction 
defines each value# tracked by the interval.  This will be used to improve
coallescing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29830 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 18:19:46 +00:00
Reid Spencer
1cb6057bf3 Fix another occurrence of inverted logic on the result of MappedFile::map 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29828 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 18:03:02 +00:00
Reid Spencer
a5ec45d3c1 Inverse the error check logic for the MappedFile::map() call. It returns 
a null pointer when there is an error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29827 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 17:58:50 +00:00
Reid Spencer
d8509c95b8 Don't throw needlessly. Failure of gettimeofday is *very* unlinkely so 
just return MinTime if that should ever happen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29826 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 17:38:44 +00:00
Reid Spencer
b152fd247c For PR797: 
Adjust the use of MappedFile to its new non-throwing interface. We just
propagate the exceptions if an error occurs. This will get cleaned up
later, incrementally.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29820 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 16:10:12 +00:00
Reid Spencer
233fe721c5 For PR797: 
Make the Bytecode Reader use setjmp/longjump instead of exceptions to handle
errors. The alternative was even uglier than setjmp/longjump as it would
impact the interface and workings of nearly every function in the reader.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29819 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 16:09:19 +00:00
Reid Spencer
751ca6b48c For PR797: 
Adjust to new interface for MappedFile. Note that the new "throw"
statements will be removed later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29818 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 16:07:44 +00:00
Reid Spencer
8627969597 For PR797: 
Adjust users of MappedFile to its new non-throwing interface.  Note that in
most cases the lazy step of just throwing after a call to MappedFile was
installed. This was done in the name of incremental changes. Getting rid of
the new throw statements will take adjustment of interfaces and propagation
of errors to higher levels.  Those changes will come in subsequent patches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29817 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 16:06:27 +00:00
Reid Spencer
6d045fcdcd For PR797: 
Make MappedFile not throw any exceptions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29816 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 16:04:22 +00:00
Reid Spencer
ad42ea7356 For PR797: 
Fix a bug in my last patch that botched file redirection by using explicit
scoping of if statements.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29815 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 15:56:52 +00:00
Rafael Espindola
f4d40050f1 add a README.txt 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29814 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 12:22:46 +00:00
Reid Spencer
76b08d84c5 Make an error message a little more intelligible. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29808 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-22 05:28:38 +00:00
Chris Lattner
8222b2de22 Print physreg names symbolically in dumps 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29805 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-21 23:03:54 +00:00
Chris Lattner
7c10b0d2c9 Print debug info as: 
*** Register mapping ***
  reg 1024 -> %reg1028
  reg 1026 -> EAX
  reg 1027 -> %reg1028

instead of:

*** Register mapping ***
  reg 1024 -> reg 1028
  reg 1026 -> reg 15
  reg 1027 -> reg 1028


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29803 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-21 22:56:29 +00:00
Rafael Espindola
3c000bf817 initial support for select 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29802 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-21 22:00:32 +00:00
Jim Laskey
760383e298 Adding C++ member support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29799 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-21 21:20:18 +00:00
Jim Laskey
6f397bf4c8 Adding new Dwarf constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29798 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-21 21:18:10 +00:00
Chris Lattner
f921a51891 Fix PR861 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29796 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-21 20:24:53 +00:00
Chris Lattner
3dd965c954 Fix PR885 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29794 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-21 17:20:01 +00:00
Rafael Espindola
a5dfc835d4 add the and instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29793 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-21 13:58:59 +00:00
Bill Wendling
d36d03bf2d Added a check so that if we have two machine instructions in this form 
MOV R0, R1
    MOV R1, R0

the second machine instruction is removed. Added a regression test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29792 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-21 07:33:33 +00:00
Reid Spencer
8ea5ecb056 For PR797: 
Adjust usage of the ExecuteAndWait function to use the last argument which
is the ErrMsg string. This is necessitated because this function no longer
throws exceptions on error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29791 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-21 06:04:45 +00:00
Reid Spencer
4ce5dc6377 For PR797: 
Remove all exception code from Program.inc and implement its new interface
with an ErrMsg string argument.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29790 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-21 06:02:44 +00:00
Reid Spencer
023fcf9776 For PR797: 
Make sys::Program::ExecuteAndWait not throw exceptions and update any
affected code. It now return -9999 to signal that the program couldn't be
executed. Only one case (in bugpoint) actually examines the result code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29785 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-21 02:04:43 +00:00
Rafael Espindola
3717ca965b call computeRegisterProperties 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29780 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-20 01:49:49 +00:00
Chris Lattner
224f84f20b regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29771 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-18 17:34:45 +00:00