Evan Cheng [Tue, 13 Dec 2005 00:14:11 +0000 (00:14 +0000)]
Fix some bad choice of names: i16SExt8 ->i16immSExt8, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24683
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Tue, 13 Dec 2005 00:01:09 +0000 (00:01 +0000)]
* Split immSExt8 to i16SExt8 and i32SExt8 for i16 and i32 immediate operands.
This enables the removal of some explicit type casts.
* Rename immZExt8 to i16ZExt8 as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24682
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Mon, 12 Dec 2005 23:47:46 +0000 (23:47 +0000)]
Add some integer mul patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24681
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Mon, 12 Dec 2005 23:45:21 +0000 (23:45 +0000)]
Bug fix: CodeGenMap[N] = ... -> CodeGenMap[N.getValue(0)] = ...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24680
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Mon, 12 Dec 2005 23:22:48 +0000 (23:22 +0000)]
At top of generated isel SelectCode() is this:
if (!N.Val->hasOneUse()) {
std::map<SDOperand, SDOperand>::iterator CGMI = CodeGenMap.find(N);
if (CGMI != CodeGenMap.end()) return CGMI->second;
}
Suppose a DAG like this:
X
^ ^
/ \
USE1 USE2
Suppose USE1 is being selected first and during which X is selected and
returned a new node. After this, USE1 is no longer an use of X. During USE2
selection, X will be selected again since it has only one use!
The fix is to always query CodeGenMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24679
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 12 Dec 2005 22:51:16 +0000 (22:51 +0000)]
Accept and ignore prefetches for now
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24678
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 12 Dec 2005 22:27:43 +0000 (22:27 +0000)]
Fix CodeGen/Generic/2005-12-12-ExpandSextInreg.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24677
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 12 Dec 2005 22:27:22 +0000 (22:27 +0000)]
Testcase for a problem that reid ran into
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24676
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Mon, 12 Dec 2005 21:54:05 +0000 (21:54 +0000)]
Add some sub patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24675
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Mon, 12 Dec 2005 21:49:40 +0000 (21:49 +0000)]
When SelectLEAAddr() fails, it shouldn't cause the side effect of having the
base or index operands being selected.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24674
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Mon, 12 Dec 2005 20:32:18 +0000 (20:32 +0000)]
For ISD::RET, if # of operands >= 2, try selection the real data dep. operand
first before the chain.
e.g.
int X;
int foo(int x)
{
x += X + 37;
return x;
}
If chain operand is selected first, we would generate:
movl X, %eax
movl 4(%esp), %ecx
leal 37(%ecx,%eax), %eax
rather than
movl $37, %eax
addl 4(%esp), %eax
addl X, %eax
which does not require %ecx. (Due to ADD32rm not matching.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24673
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Mon, 12 Dec 2005 20:30:09 +0000 (20:30 +0000)]
fix FP selects
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24672
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 12 Dec 2005 20:12:20 +0000 (20:12 +0000)]
remove some never-completed and now-obsolete code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24671
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Mon, 12 Dec 2005 19:45:23 +0000 (19:45 +0000)]
Add a few more add / store patterns. e.g. ADD32mi8.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24670
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Mon, 12 Dec 2005 19:37:43 +0000 (19:37 +0000)]
Bug fix: finding the correct incoming chain for pattern with nested src operand. And a minor change to make output code slightly more readible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24669
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Mon, 12 Dec 2005 17:43:52 +0000 (17:43 +0000)]
restore a more restricted select
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24668
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 12 Dec 2005 07:19:13 +0000 (07:19 +0000)]
Implement a little hack for parity with GCC on crafty. This speeds up
186.crafty by about 16% (from 15.109s to 13.045s) on my system.
This turns allocas with unions/casts into scalars. For example crafty has
something like this:
union doub {
unsigned short i[4];
long long d;
};
int f(long long a) {
return ((union doub){.d=a}).i[1];
}
Instead of generating loads and stores to an alloca, we now promote the
whole thing to a scalar long value.
This implements: Transforms/ScalarRepl/AggregatePromote.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24667
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 12 Dec 2005 07:18:59 +0000 (07:18 +0000)]
new testcase: sra should be able to eliminate all of these alloca's, despite
the presense of pointer casts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24666
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sun, 11 Dec 2005 19:55:39 +0000 (19:55 +0000)]
Send an indicator to llvm-testresults if the build failed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24665
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sun, 11 Dec 2005 18:43:13 +0000 (18:43 +0000)]
Fix typo :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24664
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sun, 11 Dec 2005 09:05:13 +0000 (09:05 +0000)]
Minor tweak to get isel opt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24663
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sun, 11 Dec 2005 08:35:54 +0000 (08:35 +0000)]
add selectcc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24662
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sun, 11 Dec 2005 07:45:47 +0000 (07:45 +0000)]
Remove type casts that are no longer needed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24661
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sun, 11 Dec 2005 07:45:04 +0000 (07:45 +0000)]
Realize the constant pool & global addrs must always be ptr type
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24660
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sun, 11 Dec 2005 07:37:41 +0000 (07:37 +0000)]
Fix the JIT failures from last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24659
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Sun, 11 Dec 2005 03:54:31 +0000 (03:54 +0000)]
FP select improvements (and likely breakage), oh and crazy people might want to *return* floating point values. Don't see why myself
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24658
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Sat, 10 Dec 2005 02:36:00 +0000 (02:36 +0000)]
Add support for TargetConstantPool nodes to the dag isel emitter, and use
them in the PPC backend, to simplify some logic out of Select and
SelectAddr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24657
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Sat, 10 Dec 2005 01:59:36 +0000 (01:59 +0000)]
Use SDTCisPtrTy type property for store address.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24656
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Sat, 10 Dec 2005 01:57:33 +0000 (01:57 +0000)]
Stop emitting a redudant type check for complex pattern node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24655
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Sat, 10 Dec 2005 00:48:20 +0000 (00:48 +0000)]
* Added X86 store patterns.
* Added X86 dec patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24654
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Sat, 10 Dec 2005 00:37:58 +0000 (00:37 +0000)]
Added new getNode and getTargetNode variants for X86 stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24653
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Sat, 10 Dec 2005 00:09:17 +0000 (00:09 +0000)]
For instructions which produce no result, e.g. store, chain's Resno == 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24652
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Fri, 9 Dec 2005 23:54:18 +0000 (23:54 +0000)]
Add support patterns to many load and store instructions which will
hopefully use patterns in the near future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24651
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 9 Dec 2005 22:58:42 +0000 (22:58 +0000)]
Add SDTCisPtrTy and use it for loads, to indicate that the operand of a load
must be a pointer. This removes a type check out of the code generated by
tblgen for load matching.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24650
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 9 Dec 2005 22:57:42 +0000 (22:57 +0000)]
Add a new SDTCisPtrTy constraint, which indicates that an operand must have
the same type as the pointer type for a target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24649
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Fri, 9 Dec 2005 22:48:48 +0000 (22:48 +0000)]
Added patterns for ADD8rm, etc. These fold load operands. e.g. addb 4(%esp), %al
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24648
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Fri, 9 Dec 2005 22:45:35 +0000 (22:45 +0000)]
* Do not allow nodes which produce chain results (e.g. loads) to be folded if
it has more than one real use (non-chain uses).
* Record folded chain producing node in CodeGenMap.
* Do not fold a chain producing node if it has already been selected as an
operand of a chain use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24647
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 9 Dec 2005 19:28:49 +0000 (19:28 +0000)]
Avoid emitting two tabs when switching to a named section
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24646
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 9 Dec 2005 18:24:29 +0000 (18:24 +0000)]
Teach the PPC backend about the ctor and dtor list when not using __main and
linking the entire program into one bc file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24645
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Fri, 9 Dec 2005 17:32:47 +0000 (17:32 +0000)]
Teach legalize how to promote sext_inreg to fix a problem Andrew pointed
out to me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24644
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Fri, 9 Dec 2005 06:06:08 +0000 (06:06 +0000)]
Prevent folding of instructions which produce chains that have more than 1 real use
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24643
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Fri, 9 Dec 2005 00:48:42 +0000 (00:48 +0000)]
* Make sure complex pattern operands are selected first since their select
functions can return false and causing the instruction pattern match to fail.
* Code clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24642
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Fri, 9 Dec 2005 00:45:42 +0000 (00:45 +0000)]
it helps if your conditionals are not reversed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24641
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 8 Dec 2005 08:00:12 +0000 (08:00 +0000)]
improve code insertion in two ways:
1. Only forward subst offsets into loads and stores, not into arbitrary
things, where it will likely become a load.
2. If the source is a cast from pointer, forward subst the cast as well,
allowing us to fold the cast away (improving cases when the cast is
from an alloca or global).
This hasn't been fully tested, but does appear to further reduce register
pressure and improve code. Lets let the testers grind on it a bit. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24640
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Thu, 8 Dec 2005 07:13:28 +0000 (07:13 +0000)]
Add another important case we miss
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24639
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Thu, 8 Dec 2005 04:28:48 +0000 (04:28 +0000)]
Added support for ComplexPattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24638
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Thu, 8 Dec 2005 02:15:07 +0000 (02:15 +0000)]
Added explicit type field to ComplexPattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24637
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Thu, 8 Dec 2005 02:14:08 +0000 (02:14 +0000)]
* Added an explicit type field to ComplexPattern.
* Renamed MatchingNodes to RootNodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24636
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Thu, 8 Dec 2005 02:01:35 +0000 (02:01 +0000)]
* Added intelligence to X86 LEA addressing mode matching routine so it returns
false if the match is not profitable. e.g. leal 1(%eax), %eax.
* Added patterns for X86 integer loads and LEA32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24635
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Thu, 8 Dec 2005 02:00:36 +0000 (02:00 +0000)]
Added support for ComplexPattern. These are patterns that require C++ pattern
matching code that is not currently auto-generated by tblgen, e.g. X86
addressing mode. Selection routines for complex patterns can return multiple operands, e.g. X86 addressing mode returns 4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24634
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Wed, 7 Dec 2005 19:48:11 +0000 (19:48 +0000)]
Fix a crash where ConstantVec nodes were being generated with the wrong
type when the target did not support them. Also teach Legalize how to
expand ConstantVecs.
This allows us to generate
_test:
lwz r2, 12(r3)
lwz r4, 8(r3)
lwz r5, 4(r3)
lwz r6, 0(r3)
addi r2, r2, 4
addi r4, r4, 3
addi r5, r5, 2
addi r6, r6, 1
stw r2, 12(r3)
stw r4, 8(r3)
stw r5, 4(r3)
stw r6, 0(r3)
blr
For:
void %test(%v4i *%P) {
%T = load %v4i* %P
%S = add %v4i %T, <int 1, int 2, int 3, int 4>
store %v4i %S, %v4i * %P
ret void
}
On PowerPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24633
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 7 Dec 2005 18:02:05 +0000 (18:02 +0000)]
Only transform (sext (truncate x)) -> (sextinreg x) if before legalize or
if the target supports the resultant sextinreg
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24632
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 7 Dec 2005 17:59:14 +0000 (17:59 +0000)]
X86 doesn't support sextinreg for 8-bit things either.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24631
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 7 Dec 2005 07:11:03 +0000 (07:11 +0000)]
Teach the dag combiner to turn a truncate/sign_extend pair into a sextinreg
when the types match up. This allows the X86 backend to compile:
sbyte %toggle_value(sbyte* %tmp.1) {
%tmp.2 = load sbyte* %tmp.1
ret sbyte %tmp.2
}
to this:
_toggle_value:
mov %EAX, DWORD PTR [%ESP + 4]
movsx %EAX, BYTE PTR [%EAX]
ret
instead of this:
_toggle_value:
mov %EAX, DWORD PTR [%ESP + 4]
movsx %EAX, BYTE PTR [%EAX]
movsx %EAX, %AL
ret
noticed in Shootout/objinst.
-Chris
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24630
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Wed, 7 Dec 2005 05:41:44 +0000 (05:41 +0000)]
Remove a now-dead map, patch by Saem Ghani, thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24629
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Tue, 6 Dec 2005 23:27:39 +0000 (23:27 +0000)]
fix divide and remainder
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24628
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 6 Dec 2005 20:56:18 +0000 (20:56 +0000)]
Silence another annoying GCC warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24627
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Tue, 6 Dec 2005 20:51:30 +0000 (20:51 +0000)]
This solves the problem of the CBE renaming symbols that start with . but the assembly side still trying to reference them by their old names. Should be safe untill we hit a language front end that lets you specify such a name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24626
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Tue, 6 Dec 2005 20:43:30 +0000 (20:43 +0000)]
more decent branches for FP. I might have to make some intermediate nodes to actually be able to use the DAG for FPcmp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24625
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Tue, 6 Dec 2005 20:40:34 +0000 (20:40 +0000)]
OK, this does wonders for broken stuff
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24624
91177308-0d34-0410-b5e6-
96231b3b80d8
Sumant Kowshik [Tue, 6 Dec 2005 18:16:08 +0000 (18:16 +0000)]
Added comment for removing assert
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24623
91177308-0d34-0410-b5e6-
96231b3b80d8
Sumant Kowshik [Tue, 6 Dec 2005 18:04:30 +0000 (18:04 +0000)]
Collapsing node if variable length struct with final field of length zero
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24621
91177308-0d34-0410-b5e6-
96231b3b80d8
Sumant Kowshik [Tue, 6 Dec 2005 18:01:20 +0000 (18:01 +0000)]
Handling of zero length last fields in struct used for growing it arbitrarily
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24620
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 6 Dec 2005 17:30:58 +0000 (17:30 +0000)]
Fix test/Regression/Linker/2005-12-06-AppendingZeroLengthArrays.ll and
PR662. Thanks to Markus for providing me with a ton of files to
reproduce the problem!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24619
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 6 Dec 2005 17:29:54 +0000 (17:29 +0000)]
new testcase for PR662
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24618
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 6 Dec 2005 07:05:27 +0000 (07:05 +0000)]
Implement external storage for post-order iteration, implementing PR267
Patch by Saem Ghani, thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24617
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Tue, 6 Dec 2005 06:18:55 +0000 (06:18 +0000)]
Teach the SelectionDAG ISel how to turn ConstantPacked values into
constant nodes with vector types. Also teach the asm printer how to print
ConstantPacked constant pool entries. This allows us to generate altivec
code such as the following, which adds a vector constantto a packed float.
LCPI1_0: <4 x float> < float 0.0e+0, float 0.0e+0, float 0.0e+0, float 1.0e+0 >
.space 4
.space 4
.space 4
.long
1065353216 ; float 1
.text
.align 4
.globl _foo
_foo:
lis r2, ha16(LCPI1_0)
la r2, lo16(LCPI1_0)(r2)
li r4, 0
lvx v0, r4, r2
lvx v1, r4, r3
vaddfp v0, v1, v0
stvx v0, r4, r3
blr
For the llvm code:
void %foo(<4 x float> * %a) {
entry:
%tmp1 = load <4 x float> * %a;
%tmp2 = add <4 x float> %tmp1, < float 0.0, float 0.0, float 0.0, float 1.0 >
store <4 x float> %tmp2, <4 x float> *%a
ret void
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24616
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Tue, 6 Dec 2005 02:10:38 +0000 (02:10 +0000)]
Use new PPC-specific nodes to represent shifts which require the 6-bit
amount handling that PPC provides. These are generated by the lowering code
and prevents the dag combiner from assuming (rightfully) that the shifts
don't only look at 5 bits. This fixes a miscompilation of crafty with
the new front-end.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24615
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Tue, 6 Dec 2005 00:33:53 +0000 (00:33 +0000)]
added instructions with inverted immediates
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24614
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Mon, 5 Dec 2005 23:41:45 +0000 (23:41 +0000)]
yea, it helps to have your path set right when testing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24613
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Mon, 5 Dec 2005 23:19:44 +0000 (23:19 +0000)]
These never trigger, but whatever
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24612
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Mon, 5 Dec 2005 23:09:43 +0000 (23:09 +0000)]
Remove unnecessary let hasCtrlDep=1 now it can be inferred.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24611
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Mon, 5 Dec 2005 23:08:55 +0000 (23:08 +0000)]
* Infer instruction property hasCtrlDep from pattern if it has one.
* Fixed a bug related to hasCtrlDep property use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24610
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Mon, 5 Dec 2005 20:50:53 +0000 (20:50 +0000)]
move this over to the dag
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24609
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 18:23:57 +0000 (18:23 +0000)]
getRawValue zero extens for unsigned values, use getsextvalue so that we
know that small negative values fit into the immediate field of addressing
modes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24608
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Lenharth [Mon, 5 Dec 2005 17:51:02 +0000 (17:51 +0000)]
fix constant pool loads
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24607
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 07:10:48 +0000 (07:10 +0000)]
Fix the #1 code quality problem that I have seen on X86 (and it also affects
PPC and other targets). In a particular, consider code like this:
struct Vector3 { double x, y, z; };
struct Matrix3 { Vector3 a, b, c; };
double dot(Vector3 &a, Vector3 &b) {
return a.x * b.x + a.y * b.y + a.z * b.z;
}
Vector3 mul(Vector3 &a, Matrix3 &b) {
Vector3 r;
r.x = dot( a, b.a );
r.y = dot( a, b.b );
r.z = dot( a, b.c );
return r;
}
void transform(Matrix3 &m, Vector3 *x, int n) {
for (int i = 0; i < n; i++)
x[i] = mul( x[i], m );
}
we compile transform to a loop with all of the GEP instructions for indexing
into 'm' pulled out of the loop (9 of them). Because isel occurs a bb at a time
we are unable to fold the constant index into the loads in the loop, leading to
PPC code that looks like this:
LBB3_1: ; no_exit.preheader
li r2, 0
addi r6, r3, 64 ;; 9 values live across the loop body!
addi r7, r3, 56
addi r8, r3, 48
addi r9, r3, 40
addi r10, r3, 32
addi r11, r3, 24
addi r12, r3, 16
addi r30, r3, 8
LBB3_2: ; no_exit
lfd f0, 0(r30)
lfd f1, 8(r4)
fmul f0, f1, f0
lfd f2, 0(r3) ;; no constant indices folded into the loads!
lfd f3, 0(r4)
lfd f4, 0(r10)
lfd f5, 0(r6)
lfd f6, 0(r7)
lfd f7, 0(r8)
lfd f8, 0(r9)
lfd f9, 0(r11)
lfd f10, 0(r12)
lfd f11, 16(r4)
fmadd f0, f3, f2, f0
fmul f2, f1, f4
fmadd f0, f11, f10, f0
fmadd f2, f3, f9, f2
fmul f1, f1, f6
stfd f0, 0(r4)
fmadd f0, f11, f8, f2
fmadd f1, f3, f7, f1
stfd f0, 8(r4)
fmadd f0, f11, f5, f1
addi r29, r4, 24
stfd f0, 16(r4)
addi r2, r2, 1
cmpw cr0, r2, r5
or r4, r29, r29
bne cr0, LBB3_2 ; no_exit
uh, yuck. With this patch, we now sink the constant offsets into the loop, producing
this code:
LBB3_1: ; no_exit.preheader
li r2, 0
LBB3_2: ; no_exit
lfd f0, 8(r3)
lfd f1, 8(r4)
fmul f0, f1, f0
lfd f2, 0(r3)
lfd f3, 0(r4)
lfd f4, 32(r3) ;; much nicer.
lfd f5, 64(r3)
lfd f6, 56(r3)
lfd f7, 48(r3)
lfd f8, 40(r3)
lfd f9, 24(r3)
lfd f10, 16(r3)
lfd f11, 16(r4)
fmadd f0, f3, f2, f0
fmul f2, f1, f4
fmadd f0, f11, f10, f0
fmadd f2, f3, f9, f2
fmul f1, f1, f6
stfd f0, 0(r4)
fmadd f0, f11, f8, f2
fmadd f1, f3, f7, f1
stfd f0, 8(r4)
fmadd f0, f11, f5, f1
addi r6, r4, 24
stfd f0, 16(r4)
addi r2, r2, 1
cmpw cr0, r2, r5
or r4, r6, r6
bne cr0, LBB3_2 ; no_exit
This is much nicer as it reduces register pressure in the loop a lot. On X86,
this takes the function from having 9 spilled registers to 2. This should help
some spec programs on X86 (gzip?)
This is currently only enabled with -enable-gep-isel-opt to allow perf testing
tonight.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24606
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 05:30:21 +0000 (05:30 +0000)]
Add a flag to Module::getGlobalVariable to allow it to return vars with
internal linkage.
Patch provided by Evan Jones, thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24604
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 05:23:06 +0000 (05:23 +0000)]
attribute((used)) is now supported
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24603
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 05:07:38 +0000 (05:07 +0000)]
Wrap a long line, never internalize llvm.used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24602
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 04:48:12 +0000 (04:48 +0000)]
New testcase for PR660
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24601
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 03:22:46 +0000 (03:22 +0000)]
testcase for PR664
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24600
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 02:40:25 +0000 (02:40 +0000)]
Several things:
1. Remove redundant type casts now that PR673 is implemented.
2. Implement the OUT*ir instructions correctly. The port number really
*is* a 16-bit value, but the patterns should only match if the number
is 0-255. Update the patterns so they now match.
3. Fix patterns for shifts to reflect that the shift amount is always an
i8, not an i16 as they were believed to be before. This previous fib
stopped working when we started knowing that CL has type i8.
4. Change use of i16i8imm in SH*ri patterns to all be imm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24599
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 02:37:26 +0000 (02:37 +0000)]
On some targets (e.g. X86), shift amounts are not the same as the value
being shifted. Don't assume they are.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24598
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 02:36:37 +0000 (02:36 +0000)]
Implement PR673: for explicit register references, use type information
if available
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24597
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 02:35:08 +0000 (02:35 +0000)]
Add some methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24596
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 02:34:29 +0000 (02:34 +0000)]
Add some explicit type casts so that tblgen knows the type of the shiftamount, which is not necessarily the same as the type being shifted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24595
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 02:34:05 +0000 (02:34 +0000)]
Add some explicit type casts so that tblgen knows the type of the shift
amount, which is not necessarily the same as the type being shifted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24594
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Mon, 5 Dec 2005 00:48:51 +0000 (00:48 +0000)]
Generate code to silence bogus GCC warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24593
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sun, 4 Dec 2005 19:04:38 +0000 (19:04 +0000)]
The basic fneg cases are already autogen'd
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24592
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sun, 4 Dec 2005 19:01:59 +0000 (19:01 +0000)]
Autogen matching code for ADJCALLSTACK[UP|DOWN], thanks to Evan's tblgen
improvements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24591
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sun, 4 Dec 2005 18:48:01 +0000 (18:48 +0000)]
Finish moving uncond br over to .td file, remove from .cpp file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24590
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sun, 4 Dec 2005 18:42:54 +0000 (18:42 +0000)]
Define BR in the .td file now that Evan made tblgen smarter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24589
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Sun, 4 Dec 2005 08:19:43 +0000 (08:19 +0000)]
Added isel patterns for RET, JMP, and WRITEPORT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24588
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Sun, 4 Dec 2005 08:18:16 +0000 (08:18 +0000)]
* Commit the fix (by Chris) for a tblgen type inferencing bug.
* Enhanced tblgen to handle instructions which have chain operand and writes a
chain result.
* Enhanced tblgen to handle instructions which produces no results. Part of
the change is a temporary hack which relies on instruction property (e.g.
isReturn, isBranch). The proper fix would be to change the .td syntax to
separate results dag from ops dag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24587
91177308-0d34-0410-b5e6-
96231b3b80d8
Evan Cheng [Sun, 4 Dec 2005 08:13:17 +0000 (08:13 +0000)]
* Added instruction property hasCtrlDep for those which r/w control-flow
chains.
* Added DAG node property SDNPHasChain for nodes which r/w control-flow
chains.
* Renamed SDTVT to SDTOther.
* Added several new SDTypeProfiles for BR, BRCOND, RET, and WRITEPORT.
* Added SDNode definitions for BR, BRCOND, RET, and WRITEPORT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24586
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sun, 4 Dec 2005 06:03:50 +0000 (06:03 +0000)]
Fix PR672 another way which should be more robust
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24585
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sun, 4 Dec 2005 06:03:25 +0000 (06:03 +0000)]
new testcase, for PR672
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24584
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sat, 3 Dec 2005 18:50:48 +0000 (18:50 +0000)]
dbg.stoppoint returns a value, don't forget to init it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24583
91177308-0d34-0410-b5e6-
96231b3b80d8
Chris Lattner [Sat, 3 Dec 2005 18:26:41 +0000 (18:26 +0000)]
expand testcase, which has been in my tree for a while now
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24582
91177308-0d34-0410-b5e6-
96231b3b80d8