Evan Cheng
b1a9aec515
Fix a x86-64 static codegen bug. This fixes a lot of x86-64 jit failures.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45733 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-08 02:06:11 +00:00
Bill Wendling
750ec00436
Silence warning about loss of precision.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45731 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-08 00:52:29 +00:00
Evan Cheng
325474e065
Only mark instructions that load a single value without extension as isSimpleLoad = 1.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45727 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 23:56:57 +00:00
Chris Lattner
f7c8db9ab5
add a new bit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45726 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 23:16:55 +00:00
Evan Cheng
9b44944d3d
Unbreak x86-64.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45725 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 23:08:23 +00:00
Chris Lattner
84a7c41251
add a note that is important for some fp apps.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45723 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 21:59:58 +00:00
Chris Lattner
b3041948eb
possible switch lowering improvement.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45720 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 21:38:14 +00:00
Duncan Sands
9c5525f4fa
Add missing newline at EOF.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45712 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 19:13:36 +00:00
Duncan Sands
30d15751c8
Unbreak x86-32 darwin long double!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45703 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 16:36:38 +00:00
Duncan Sands
004a81dcc7
Fix long double support on x86-32 linux.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45701 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 13:44:22 +00:00
Bill Wendling
323cd29009
Operand 1 should be a register. We don't care if it's a preg, vreg, or 0.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45699 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 08:05:29 +00:00
Chris Lattner
4e4e46143a
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45698 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 07:46:23 +00:00
Chris Lattner
749c6f6b5e
rename TargetInstrDescriptor -> TargetInstrDesc.
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Make MachineInstr::getDesc return a reference instead
of a pointer, since it can never be null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45695 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 07:27:27 +00:00
Chris Lattner
0ff23966fe
Rename all the M_* flags to be namespace qualified enums, and switch
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all clients over to using predicates instead of these flags directly.
These are now private values which are only to be used to statically
initialize the tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45692 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 06:42:05 +00:00
Chris Lattner
c17d69fa1e
use predicate.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45691 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 06:37:29 +00:00
Chris Lattner
8f707e15fb
rename hasVariableOperands() -> isVariadic(). Add some comments.
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Evan, please review the comments I added to getNumDefs to make sure
that they are accurate, thx.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45687 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 05:19:29 +00:00
Chris Lattner
775060d007
remove a dead field.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45685 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 04:57:42 +00:00
Chris Lattner
7358c193fd
no need to explicitly clear these fields.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45683 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 04:55:09 +00:00
Chris Lattner
349c495200
Move a bunch more accessors from TargetInstrInfo to TargetInstrDescriptor
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45680 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 03:13:06 +00:00
Chris Lattner
cc8cd0cbf1
remove MachineOpCode typedef.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45679 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 02:48:55 +00:00
Chris Lattner
8ca5c67c6e
Add predicates methods to TargetOperandInfo, and switch all clients
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over to using them, instead of diddling Flags directly. Change the
various flags from const variables to enums.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45677 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 02:39:19 +00:00
Chris Lattner
69244300b8
Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects
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that it is cheap and efficient to get.
Move a variety of predicates from TargetInstrInfo into
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around. Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.
Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45674 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 01:56:04 +00:00
Owen Anderson
43dbe05279
Move even more functionality from MRegisterInfo into TargetInstrInfo.
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Some day I'll get it all moved over...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45672 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 01:35:02 +00:00
Gordon Henriksen
ce2247755e
Enabling the target-independent garbage collection infrastructure by hooking it
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up to the various compiler pipelines.
This doesn't actually add support for any GC algorithms, which means it
temporarily breaks a few tests. To be fixed shortly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45669 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 01:30:38 +00:00
Chris Lattner
7e40ad5106
The pic base can't be duplicated.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45668 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-06 23:49:32 +00:00
Chris Lattner
834f1ce031
rename isLoad -> isSimpleLoad due to evan's desire to have such a predicate.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-06 23:38:27 +00:00
Chris Lattner
2e48a70b35
rename isStore -> mayStore to more accurately reflect what it captures.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45656 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-06 08:36:04 +00:00
Chris Lattner
c8478d8b12
Change the 'isStore' inferrer to look for 'SDNPMayStore'
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instead of "ISD::STORE". This allows us to mark target-specific dag
nodes as storing (such as ppc byteswap stores). This allows us to remove
more explicit isStore flags from the .td files.
Finally, add a warning for when a .td file contains an explicit
isStore and tblgen is able to infer it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45654 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-06 06:44:58 +00:00
Chris Lattner
13c6310866
remove explicit isStore flags that are now inferrable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45653 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-06 05:55:01 +00:00
Chris Lattner
9c9fbf8e9c
remove some isStore flags that are now inferred automatically.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45652 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-06 05:53:26 +00:00
Bill Wendling
f995830daf
Fix comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45638 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-05 23:30:51 +00:00
Nate Begeman
219f67f0a5
Remove an incorrect optimization that is performed correctly by
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the target independent legalizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45631 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-05 20:51:30 +00:00
Gordon Henriksen
86737665b8
Refactoring the x86 and x86-64 calling convention implementations,
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unifying the copied algorithms and saving over 500 LOC. There should
be no functionality change, but please test on your favorite x86
target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45627 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-05 16:56:59 +00:00
Bill Wendling
df303bd7f2
Chris and Evan noticed that this check was compleatly fubared. I was
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checking that there was a from a global instead of a load from the stub
for a global, which is the one that's safe to hoist.
Consider this program:
volatile char G[100];
int B(char *F, int N) {
for (; N > 0; --N)
F[N] = G[N];
}
In static mode, we shouldn't be hoisting the load from G:
$ llc -relocation-model=static -o - a.bc -march=x86 -machine-licm
LBB1_1: # bb.preheader
leal -1(%eax), %edx
testl %edx, %edx
movl $1, %edx
cmovns %eax, %edx
xorl %esi, %esi
LBB1_2: # bb
movb _G(%eax), %bl
movb %bl, (%ecx,%eax)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45626 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-05 09:18:04 +00:00
Chris Lattner
f29495a22f
enable sinking and licm of loads from the argument area. I'd like to enable this
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for remat, but can't due to an RA bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45623 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-05 06:10:42 +00:00
Chris Lattner
3b5a221f81
simplify some code by using shorter accessors.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45622 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-05 05:28:30 +00:00
Chris Lattner
a83b34bbeb
revert my previous patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45621 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-05 05:26:26 +00:00
Chris Lattner
505d4abd05
factor some code better to avoid redundancy between
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isReallySideEffectFree and isReallyTriviallyReMaterializable. Why is a load from
a global considered side-effect-free but not rematable?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45620 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-05 05:19:56 +00:00
Chris Lattner
e9648f8981
getting the pic base has no side effects.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45618 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-05 03:54:32 +00:00
Evan Cheng
2a3e08b596
X86 JIT PIC jumptable support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45616 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-05 02:26:58 +00:00
Evan Cheng
0475ab58b8
Combine MovePCtoStack + POP32r into one instruction MOVPC32r so it can be moved if needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45605 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-05 00:41:47 +00:00
Owen Anderson
d94b6a16fe
Move some more functionality from MRegisterInfo to TargetInstrInfo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45603 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-04 23:57:37 +00:00
Evan Cheng
991500e329
Unbreak tailcall opt in JIT.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45576 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-04 10:50:28 +00:00
Evan Cheng
be8c03fc66
X86 PIC JIT support fixes: encoding bugs, add lazy pointer stubs support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45575 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-04 10:46:51 +00:00
Evan Cheng
165b60de0b
Correct order of parameters.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45562 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-04 02:22:21 +00:00
Gordon Henriksen
ae636f8e99
First steps in in X86 calling convention cleanup.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45536 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-03 16:47:34 +00:00
Evan Cheng
02aabbf96b
Change MachineRelocation::DoesntNeedFnStub to NeedStub. This fields will be used
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for non-function GV relocations that require function address stubs (e.g. Mac OS X in non-static mode).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45527 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-03 02:56:28 +00:00
Evan Cheng
306cbdbee7
X86 PIC JIT bug fix: relocations for constantpool and jumptable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45515 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-02 23:38:59 +00:00
Bill Wendling
3100afaf3f
Machine LICM will check that operands are defined outside of the loop. Also
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check that register isn't 0 before going further.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45498 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-02 21:10:40 +00:00
Chris Lattner
7ad92d81e2
darwin9 and above support aligned common symbols.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45494 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-02 19:44:55 +00:00
Chris Lattner
564da5d646
leopard and above support alignment for common symbols.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45493 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-02 19:35:16 +00:00
Owen Anderson
f6372aa1cc
Move some more instruction creation methods from RegisterInfo into InstrInfo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45484 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-01 21:11:32 +00:00
Chris Lattner
264e6fec9f
Fix a bug in my previous patch: refer to the impl not the pure virtual version. It's unclear why gcc would ever compile this...
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45476 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-01 01:05:34 +00:00
Chris Lattner
6410552250
Fix a problem where lib/Target/TargetInstrInfo.h would include and use
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a header file from libcodegen. This violates a layering order: codegen
depends on target, not the other way around. The fix to this is to
split TII into two classes, TII and TargetInstrInfoImpl, which defines
stuff that depends on libcodegen. It is defined in libcodegen, where
the base is not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45475 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-01 01:03:04 +00:00
Owen Anderson
d10fd9791c
Move copyRegToReg from MRegisterInfo to TargetInstrInfo. This is part of the
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Machine-level API cleanup instigated by Chris.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45470 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-31 06:32:00 +00:00
Chris Lattner
84bc5427d6
Rename SSARegMap -> MachineRegisterInfo in keeping with the idea
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that "machine" classes are used to represent the current state of
the code being compiled. Given this expanded name, we can start
moving other stuff into it. For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.
Update all the clients to match.
This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45467 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-31 04:13:23 +00:00
Chris Lattner
8aa797aa51
Add new shorter predicates for testing machine operands for various types:
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e.g. MO.isMBB() instead of MO.isMachineBasicBlock(). I don't plan on
switching everything over, so new clients should just start using the
shorter names.
Remove old long accessors, switching everything over to use the short
accessor: getMachineBasicBlock() -> getMBB(),
getConstantPoolIndex() -> getIndex(), setMachineBasicBlock -> setMBB(), etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45464 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30 23:10:15 +00:00
Chris Lattner
f73823000e
More cleanups for MachineOperand:
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- Eliminate the static "print" method for operands, moving it
into MachineOperand::print.
- Change various set* methods for register flags to take a bool
for the value to set it to. Remove unset* methods.
- Group methods more logically by operand flavor in MachineOperand.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45461 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30 21:56:09 +00:00
Chris Lattner
9a1ceaedc2
Use MachineOperand::getImm instead of MachineOperand::getImmedValue. Likewise setImmedValue -> setImm
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45453 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30 20:49:49 +00:00
Bill Wendling
6259d51c91
If we have a load of a global address that's not modified during the
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function, then go ahead and hoist it out of the loop. This is the result:
$ cat a.c
volatile int G;
int A(int N) {
for (; N > 0; --N)
G++;
}
$ llc -o - -relocation-model=pic
_A:
...
LBB1_2: # bb
movl L_G$non_lazy_ptr-"L1$pb"(%eax), %esi
incl (%esi)
incl %edx
cmpl %ecx, %edx
jne LBB1_2 # bb
...
$ llc -o - -relocation-model=pic -machine-licm
_A:
...
movl L_G$non_lazy_ptr-"L1$pb"(%eax), %eax
LBB1_2: # bb
incl (%eax)
incl %edx
cmpl %ecx, %edx
jne LBB1_2 # bb
...
I'm limiting this to the MOV32rm x86 instruction for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45444 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30 03:18:58 +00:00
Chris Lattner
c8bd287f3c
use simplified operand addition methods.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45437 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30 01:01:54 +00:00
Chris Lattner
39697a83b5
Shrinkify the machine operand creation method names.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45433 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30 00:45:46 +00:00
Chris Lattner
4ee451de36
Remove attribution from file headers, per discussion on llvmdev.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 20:36:04 +00:00
Chris Lattner
fc643c5e88
remove attribution from lib Makefiles.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45415 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 20:09:26 +00:00
Chris Lattner
a5e90d7b74
this is done.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45408 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 19:38:02 +00:00
Chris Lattner
03c079d5fc
One readme entry is done, one is really easy (Evan, want to investigate
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eliminating the llvm.x86.sse2.loadl.pd intrinsic?), one shuffle optzn
may be done (if shufps is better than pinsw, Evan, please review), and
we already know about LICM of simple instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45407 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 19:31:47 +00:00
Chris Lattner
63079f0757
Fold comparisons against a constant nan, and optimize ORD/UNORD
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comparisons with a constant. This allows us to compile isnan to:
_foo:
fcmpu cr7, f1, f1
mfcr r2
rlwinm r3, r2, 0, 31, 31
blr
instead of:
LCPI1_0: ; float
.space 4
_foo:
lis r2, ha16(LCPI1_0)
lfs f0, lo16(LCPI1_0)(r2)
fcmpu cr7, f1, f0
mfcr r2
rlwinm r3, r2, 0, 31, 31
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45405 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 08:37:08 +00:00
Chris Lattner
69bfbdfaee
this xform is implemented.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45404 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 08:19:39 +00:00
Chris Lattner
d60eedca01
Codegen:
...
as:
_bar:
pushl %esi
subl $8, %esp
movl 16(%esp), %esi
call L_foo$stub
fstps (%esi)
addl $8, %esp
popl %esi
#FP_REG_KILL
ret
instead of:
_bar:
pushl %esi
subl $8, %esp
movl 16(%esp), %esi
call L_foo$stub
fstpl (%esi)
cvtsd2ss (%esi), %xmm0
movss %xmm0, (%esi)
addl $8, %esp
popl %esi
#FP_REG_KILL
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45401 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 06:57:38 +00:00
Chris Lattner
112dedc520
avoid going through a stack slot to convert from fpstack to xmm reg
...
if we are just going to store it back anyway. This improves things
like:
double foo();
void bar(double *P) { *P = foo(); }
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45399 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 06:41:28 +00:00
Chris Lattner
7ede51b964
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45397 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 05:51:58 +00:00
Chris Lattner
92c06a01de
expand note.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45393 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 01:05:01 +00:00
Chris Lattner
a1643ba71a
add a note.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45388 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-28 22:30:05 +00:00
Chris Lattner
9bfcc624ba
add a note.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45387 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-28 21:50:40 +00:00
Chris Lattner
166a268656
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45377 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-28 04:42:05 +00:00
Chris Lattner
44cb8efdc1
add a simple hack
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45343 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-24 19:27:46 +00:00
Gordon Henriksen
81361d6a28
Setting GlobalDirective in TargetAsmInfo by default rather than
...
providing a misleading facility. It's used once in the MIPS backend
and hardcoded as "\t.globl\t" everywhere else.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45338 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-23 20:58:16 +00:00
Chris Lattner
52ec375438
fix some warnings. This code needs to be de-tabified :(
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45325 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-22 22:47:03 +00:00
Chris Lattner
d3ada751c3
fix strict-aliasing violation
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45324 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-22 22:45:38 +00:00
Anton Korobeynikov
d07310af64
Erm, really disable :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45319 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-22 20:46:24 +00:00
Anton Korobeynikov
144a45eb94
Disable, until we'll really need it
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45318 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-22 20:41:12 +00:00
Evan Cheng
aabe38bf0c
Preliminary PIC JIT support for X86 (32-bit) / Darwin.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45313 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-22 09:40:20 +00:00
Evan Cheng
a9ab846669
Oops.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45312 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-22 09:14:34 +00:00
Evan Cheng
f02ca69951
Fix JIT code emission of X86::MovePCtoStack.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45307 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-22 02:26:46 +00:00
Evan Cheng
889ac61113
Allow JIT with non-static relocation model.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45304 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-22 01:12:14 +00:00
Anton Korobeynikov
dceadaf8df
Fix silly typo in the FP CEP handling.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45300 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-21 23:33:44 +00:00
Duncan Sands
5819799fa7
Fix a brain fart by our beloved leader (the content
...
of this patch is the last line).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45289 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-21 20:18:41 +00:00
Nicolas Geoffray
5a6c91a3ec
Fix unintented change from last commit
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45282 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-21 12:22:29 +00:00
Nicolas Geoffray
616585bbff
Enable EH for linux/ppc32 targets
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45281 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-21 12:19:44 +00:00
Evan Cheng
0b0102b172
New entry.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45280 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-21 01:31:58 +00:00
Evan Cheng
700a0fba97
Fix JIT encoding for CMPSD as well.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45268 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-20 19:57:09 +00:00
Scott Michel
86c041f50e
More working CellSPU tests:
...
- vec_const.ll: Vector constant loads
- immed64.ll: i64, f64 constant loads
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45242 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-20 00:44:13 +00:00
Dale Johannesen
696f768daf
Enable EH on PPC Darwin. This basically works; there
...
are a couple of issues that show up with the optimizer,
but I don't think they're really EH problems.
(llvm-gcc testsuite users note: By default the testsuite
uses the unwinding code that's built as part of your local
llvm-gcc, which does not work. You need to trick it into
using the installed system unwinding code to get useful
results.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45221 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-19 21:54:36 +00:00
Scott Michel
0e5665bf03
CellSPU testcase, extract_elt.ll: extract vector element.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45219 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-19 21:17:42 +00:00
Scott Michel
170783a5fc
Two more test cases: or_ops.ll (arithmetic or operations) and vecinsert.ll
...
(vector insertions)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45216 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-19 20:15:47 +00:00
Scott Michel
9999e685ea
Add new immed16.ll test case, fix CellSPU errata to make test case work.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45196 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-19 07:35:06 +00:00
Bill Wendling
ee912540e7
Mark the "isRemat" instruction as never having side effects.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45190 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-19 06:07:48 +00:00
Chris Lattner
4185b52183
add an obvious load folding missed optzn.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45161 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-18 16:48:14 +00:00
Christopher Lamb
30f017ad89
Fold certain additions through selects (and their compares) so as to eliminate subtractions. This code is often produced by the SMAX expansion in SCEV.
...
This implements test/Transforms/InstCombine/2007-12-18-AddSelCmpSub.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45158 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-18 09:34:41 +00:00
Chris Lattner
fd2025e9db
add a missed case.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45141 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-18 01:19:18 +00:00
Bill Wendling
627c00b663
Add "mayHaveSideEffects" and "neverHasSideEffects" flags to some instructions. I
...
based what flag to set on whether it was already marked as
"isRematerializable". If there was a further check to determine if it's "really"
rematerializable, then I marked it as "mayHaveSideEffects" and created a check
in the X86 back-end similar to the remat one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45132 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-17 23:07:56 +00:00
Scott Michel
504c369213
- Restore some i8 functionality in CellSPU
...
- New test case: nand.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45130 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-17 22:32:34 +00:00
Bill Wendling
691de38295
LD_Fp64m should have "isRematerializable" set.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45128 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-17 22:17:14 +00:00
Bill Wendling
7d9e97c2ac
As per feedback, revised comments to (hopefully) make the different side effect
...
flags clearer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45120 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-17 21:02:07 +00:00
Christopher Lamb
43ad6b3e0d
Change the PointerType api for creating pointer types. The old functionality of PointerType::get() has become PointerType::getUnqual(), which returns a pointer in the generic address space. The new prototype of PointerType::get() requires both a type and an address space.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45082 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-17 01:12:55 +00:00
Chris Lattner
10d724af26
don't violate C TBAA rules, use FloatToBits instead.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45076 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-16 20:41:33 +00:00
Chris Lattner
48b0133b83
fix a questionable cast, thanks to Mike Stump for pointing this out.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45075 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-16 20:26:54 +00:00
Chris Lattner
d7610e16fc
Fix the JIT encoding of cmp*ss, which aborts with this assertion currently:
...
X86CodeEmitter.cpp:378: failed assertion `0 && "Immediate size not set!"'
I *think* this is right, but Evan, please verify. It also looks like
CMPSDrr and maybe others are missing this info. Evan, plz investigate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45074 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-16 20:12:41 +00:00
Evan Cheng
7a831ce85f
Make better use of instructions that clear high bits; fix various 2-wide shuffle bugs.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45058 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-15 03:00:47 +00:00
Scott Michel
ec2a08ff06
Start committing working test cases for CellSPU.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45050 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-15 00:38:50 +00:00
Evan Cheng
0c5a507fcb
Actually, MOVPQIto64mr is a dup of MOVPQI2QImr, MOV64toPQIrm is a dup of MOVQI2PQIrm.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45041 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-14 20:08:14 +00:00
Evan Cheng
2023ed720e
Fix (mem) <-> low 64-bits of xmm bugs pointed out by David Greene. Mac OS X Leopard assembler recognizes movq.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45040 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-14 19:54:07 +00:00
Dale Johannesen
6e959b9afe
x86-32 long doubles are 4-byte aligned on the stack
...
for parameter passing (only for that, on Darwin).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45038 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-14 19:25:34 +00:00
Evan Cheng
fd9e473a82
Fix bsf / bsr jit encoding.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45037 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-14 18:49:43 +00:00
Evan Cheng
8ec861183b
Oops. Forgot these.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45036 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-14 18:25:34 +00:00
Dan Gohman
1a8001e665
Fix Intel asm syntax for the bsr and bsf instructions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45030 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-14 15:10:00 +00:00
Evan Cheng
152804e9c1
Fix ctlz and cttz. llvm definition requires them to return number of bits in of the src type when value is zero.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45029 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-14 08:30:15 +00:00
Evan Cheng
18efe269b1
Implement ctlz and cttz with bsr and bsf.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45024 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-14 02:13:44 +00:00
Bill Wendling
6b1da9c39f
Add flags to indicate that there are "never" side effects or that there "may be"
...
side effects for machine instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45022 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-14 01:48:59 +00:00
Evan Cheng
1314b00cf2
Fold some and + shift in x86 addressing mode.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44970 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-13 00:43:27 +00:00
Evan Cheng
6e141fd048
Implicit def instructions, e.g. X86::IMPLICIT_DEF_GR32, are always re-materializable and they should not be spilled.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44960 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-12 23:12:09 +00:00
Duncan Sands
67f1c493d1
Remove host endianness info from TargetData and
...
put it in a new header System/Host.h instead.
Instead of getting the endianness from configure,
calculate it directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44959 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-12 23:03:45 +00:00
Dan Gohman
890813243f
Allow vector integer constants to be created with
...
SelectionDAG::getConstant, in the same way as vector floating-point
constants. This allows the legalize expansion code for @llvm.ctpop and
friends to be usable with vector types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44954 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-12 22:21:26 +00:00
Evan Cheng
794405e6aa
Use shuffles to implement insert_vector_elt for i32, i64, f32, and f64.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44929 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-12 07:55:34 +00:00
Evan Cheng
db2d524d5f
Lower a build_vector with all constants into a constpool load unless it can be done with a move to low part.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44921 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-12 06:45:40 +00:00
Scott Michel
a28c6bfef3
Correct typo for Linux: s/esp/%rsp/
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44904 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-12 02:38:28 +00:00
Nate Begeman
6e041c2015
Allow the JIT to encode MMX instructions
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44869 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-11 18:06:14 +00:00
Evan Cheng
14b32e1941
- Improved v8i16 shuffle lowering. It now uses pshuflw and pshufhw as much as
...
possible before resorting to pextrw and pinsrw.
- Better codegen for v4i32 shuffles masquerading as v8i16 or v16i8 shuffles.
- Improves (i16 extract_vector_element 0) codegen by recognizing
(i32 extract_vector_element 0) does not require a pextrw.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44836 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-11 01:46:18 +00:00
Nate Begeman
844e0f9def
x86 doesn't actually want to custom lower v3i32
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44835 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-11 01:41:33 +00:00
Chris Lattner
57d7d3f2d7
Move TargetData::hostIsLittleEndian out of line, which means we
...
don't have to #include config.h in it. #including config.h breaks
other projects that have their own autoconf stuff and try to #include
the llvm headers. One obscure example is llvm-gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44825 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-11 00:28:59 +00:00
Anton Korobeynikov
7eb587779e
Hey, English is not my native language :)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44820 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-10 23:10:20 +00:00
Anton Korobeynikov
2fb9deef10
Clarify the need of CFI() stuff
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44819 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-10 23:08:35 +00:00
Anton Korobeynikov
5f68287605
Provide convenient way to disable CFI stuff for old/broken assemblers.
...
Use it for Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44818 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-10 23:04:38 +00:00
Chris Lattner
ec90cd1bf8
Disable cfi directives for now, darwin does't support them.
...
These should probably be something like:
CFI(".cfi_def_cfa_offset 16\n")
where CFI is defined to a noop on darwin and other platforms
that don't support those directives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44803 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-10 19:10:18 +00:00
Anton Korobeynikov
3a7bcc4d1b
And finally annotate X86-64 version of callback.
...
All bad stuff from SSE version is implicitely inherited :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44794 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-10 15:27:07 +00:00
Anton Korobeynikov
df7814ce92
Provide annotation for SSE version of callback. It's even more
...
broken, because doesn't mark xmm regs properly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44793 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-10 15:13:55 +00:00
Anton Korobeynikov
a14b6696c0
Annotate JIT callback function with call frame infromation.
...
This will allow us (theoretically) to unwind through JITer.
The code wasn't verified, so I'm pretty sure offsets are wrong :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44792 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-10 14:54:42 +00:00
Bill Wendling
041b3f8356
Reverting 44702. It wasn't correct to rename them.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44727 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08 23:58:46 +00:00
Chris Lattner
5aaddaa7b8
aesthetic changes, no functionality change. Evan, it's not clear
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what 'Available' is, please add a comment near it and rename it
if appropriate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44703 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08 07:22:58 +00:00
Bill Wendling
320c630c1b
Renaming:
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isTriviallyReMaterializable -> hasNoSideEffects
isReallyTriviallyReMaterializable -> isTriviallyReMaterializable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44702 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08 07:17:56 +00:00
Chris Lattner
d96428597b
Fix a significant code quality regression I introduced on PPC64 quite
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a while ago. We now produce:
_foo:
mflr r0
std r0, 16(r1)
ld r2, 16(r1)
std r2, 0(r3)
ld r0, 16(r1)
mtlr r0
blr
instead of:
_foo:
mflr r0
std r0, 16(r1)
lis r0, 0
ori r0, r0, 16
ldx r2, r1, r0
std r2, 0(r3)
ld r0, 16(r1)
mtlr r0
blr
for:
void foo(void **X) {
*X = __builtin_return_address(0);
}
on ppc64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44701 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08 07:04:58 +00:00
Chris Lattner
3fc027df4f
implement __builtin_return_addr(0) on ppc.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44700 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08 06:59:59 +00:00
Chris Lattner
73944fb222
refactor some code to avoid overloading the name 'usesLR' in
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different places to mean different things. Document what the
one in PPCFunctionInfo means and when it is valid.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44699 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08 06:39:11 +00:00
Evan Cheng
1713d8bcff
Doh
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44694 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08 01:01:07 +00:00
Evan Cheng
7658445fa6
Fix a compilation warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44692 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08 01:00:31 +00:00
Evan Cheng
5a759616b6
Fix a compilation warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44691 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08 01:00:21 +00:00
Bill Wendling
0f940c95d4
Initial commit of the machine code LICM pass. It successfully hoists this:
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_foo:
li r2, 0
LBB1_1: ; bb
li r5, 0
stw r5, 0(r3)
addi r2, r2, 1
addi r3, r3, 4
cmplw cr0, r2, r4
bne cr0, LBB1_1 ; bb
LBB1_2: ; return
blr
to:
_foo:
li r2, 0
li r5, 0
LBB1_1: ; bb
stw r5, 0(r3)
addi r2, r2, 1
addi r3, r3, 4
cmplw cr0, r2, r4
bne cr0, LBB1_1 ; bb
LBB1_2: ; return
blr
ZOMG!! :-)
Moar to come...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44687 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-07 21:42:31 +00:00
Evan Cheng
779ccea5b6
Add comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44686 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-07 21:30:01 +00:00
Evan Cheng
8a86c3f3ae
Much improved v8i16 shuffles. (Step 1).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44676 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-07 08:07:39 +00:00
Evan Cheng
1076210ee3
Remove a bogus optimization. It's not possible to do a move to low element to a <8 x i16> or <16 x i8> vector.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44669 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-06 22:14:22 +00:00