Nate Begeman
c24d484b78
Make SELECT illegal on PPC32, switch to using SELECT_CC, which more closely
...
reflects what the hardware is capable of. This significantly simplifies
the CC handling logic throughout the ISel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22756 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-10 20:52:09 +00:00
Chris Lattner
b4138c475e
Changes for PPC32ISelPattern.cpp
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1. Clean up how SelectIntImmediateExpr handles use counts.
2. "Subtract from" was not clearing hi 16 bits.
Patch by Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22754 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-10 18:11:33 +00:00
Chris Lattner
df706e3f0c
Changed the XOR case to use the isOprNot predicate.
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Patch by Jim Laskey!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22750 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-10 16:35:46 +00:00
Chris Lattner
0d7d99fd44
1. Refactored handling of integer immediate values for add, or, xor and sub.
...
New routine: ISel::SelectIntImmediateExpr
2. Now checking use counts of large constants. If use count is > 2 then drop
thru so that the constant gets loaded into a register.
Source:
int %test1(int %a) {
entry:
%tmp.1 = add int %a, 123456789 ; <int> [#uses=1]
%tmp.2 = or int %tmp.1, 123456789 ; <int> [#uses=1]
%tmp.3 = xor int %tmp.2, 123456789 ; <int> [#uses=1]
%tmp.4 = sub int %tmp.3, -123456789 ; <int> [#uses=1]
ret int %tmp.4
}
Did Emit:
.machine ppc970
.text
.align 2
.globl _test1
_test1:
.LBB_test1_0: ; entry
addi r2, r3, -13035
addis r2, r2, 1884
ori r2, r2, 52501
oris r2, r2, 1883
xori r2, r2, 52501
xoris r2, r2, 1883
addi r2, r2, 52501
addis r3, r2, 1883
blr
Now Emits:
.machine ppc970
.text
.align 2
.globl _test1
_test1:
.LBB_test1_0: ; entry
lis r2, 1883
ori r2, r2, 52501
add r3, r3, r2
or r3, r3, r2
xor r3, r3, r2
add r3, r3, r2
blr
Patch by Jim Laskey!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22749 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-10 16:34:52 +00:00
Duraid Madina
d2ff5ef654
sorry!! this is temporary; for some reason the nasty constmul code seems to
...
be an infinite loop when using g++-4.0.1*, this kills the ia64 nightly
tester. A proper fix shall be forthcoming!!! thanks for not killing me. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22748 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-10 12:38:57 +00:00
Chris Lattner
979a21e766
Fix a bug compiling: select (i32 < i32), f32, f32
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22747 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-10 03:40:09 +00:00
Chris Lattner
c7e18a10d4
add a optimization note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22732 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-09 22:30:57 +00:00
Chris Lattner
88ac32ca26
Update the targets to the new SETCC/CondCodeSDNode interfaces.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22729 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-09 20:21:10 +00:00
Chris Lattner
59b21c25d4
Minor cleanup patch, no functionality changes. Written by Jim Laskey.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22727 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-09 18:29:55 +00:00
Chris Lattner
2f46055cc2
Fix CodeGen/Generic/div-neg-power-2.ll, a regression from last night.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22726 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-09 18:08:41 +00:00
Nate Begeman
d3ded2d8a7
Factor out some common code, and be smarter about when to emit load hi/lo
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code sequences.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22719 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 22:22:56 +00:00
Chris Lattner
0045776d33
Remove getImmediateForOpcode, which is now dead.
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Patch by Jim Laskey.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22716 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:34:13 +00:00
Chris Lattner
fd78454477
Add new immediate handling support for mul/div.
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Patch by Jim Laskey!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22715 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:33:23 +00:00
Chris Lattner
5b90917400
Add support for OR/XOR/SUB immediates that are handled with the new immediate
...
way. This allows ORI/ORIS pairs, for example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22714 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:30:29 +00:00
Chris Lattner
2f57c4da21
Modify the ISD::AND opcode case to use new immediate constant predicates.
...
Includes wider support for rotate and mask cases.
Patch by Jim Laskey.
I've requested that Jim add new regression tests the newly handled cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22712 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:24:57 +00:00
Chris Lattner
39c6896d22
Modify the ISD::ADD opcode case to use new immediate constant predicates.
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Includes support for 32-bit constants using addi/addis.
Patch by Jim Laskey.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22711 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:21:03 +00:00
Chris Lattner
8fd1980ce6
Modify existing support functions to use new immediate constant predicates.
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Patch by Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22710 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:12:35 +00:00
Chris Lattner
cf1cf1886e
Add support predicates for future immediate constant changes.
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Patch by Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22709 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:10:27 +00:00
Chris Lattner
02efa6c140
Move IsRunOfOnes to a more logical place and rename to a proper predicate form
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(lowercase isXXX).
Patch by Jim Laskey.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22708 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 21:08:09 +00:00
Nate Begeman
394cd13ba3
Fix JIT encoding of ppc mfocrf instruction; the operands were reversed
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22707 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08 20:04:52 +00:00
Chris Lattner
3c304a3ba1
Consolidate the GPOpt stuff to all use the Subtarget, instead of still
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depending on the command line option. Now the command line option just
sets the subtarget as appropriate. G5 opts will now default to on on
G5-enabled nightly testers among other machines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22688 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 22:05:03 +00:00
Chris Lattner
8c4a8735ec
adjust to change in getSubtarget() api
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22687 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 21:54:27 +00:00
Chris Lattner
ba25365140
Enable gp optimizations by default when available, even when a target triple
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is available, since the target triple doesn't specify whether to use gpopts
or not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22685 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 21:25:13 +00:00
Chris Lattner
6281ae4bf0
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22681 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 19:18:32 +00:00
Chris Lattner
4e624ecd07
don't crash when running the PPC backend on non-ppc hosts without specifying
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a subtarget.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22677 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 16:17:22 +00:00
Nate Begeman
99558806f8
Hack to naturally align doubles in the constant pool. Remove this once we
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know what The Right Thing To Do is.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22660 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04 21:04:09 +00:00
Nate Begeman
3d72d14887
Use the new subtarget support to automatically choose the correct ABI
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and asm printer for PowerPC if one is not specified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22659 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04 20:49:48 +00:00
Andrew Lenharth
3f55a4fcab
No, IDEFs shouldn't be JITed
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22648 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04 15:32:36 +00:00
Nate Begeman
8c00f8cdc7
Add Subtarget support to PowerPC. Next up, using it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22644 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04 07:12:09 +00:00
Nate Begeman
1c73c7be9d
Scalar SSE: load +0.0 -> xorps/xorpd
...
Scalar SSE: a < b ? c : 0.0 -> cmpss, andps
Scalar SSE: float -> i16 needs to be promoted
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22637 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-03 23:26:28 +00:00
Andrew Lenharth
dc7c0b8c22
Alpha ABI specifies stack is always 16 byte alligned, and gcc does it, so I will too
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22634 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-03 22:33:21 +00:00
Misha Brukman
0a3f677f09
Fix grammar: apostrophe-s ('s) is possessive, not plural; also iff vs. if.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22619 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-03 17:29:52 +00:00
Chris Lattner
a34cbcc50a
minor capitalization thing, patch by Jim Laskey
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22617 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-03 16:52:22 +00:00
Chris Lattner
9e17df80ca
one more hunk that got dropped
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22596 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-02 19:35:29 +00:00
Chris Lattner
c0d590b6f2
This hunk accidentally got dropped. Patch by Jim Laskey
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22595 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-02 19:30:55 +00:00
Chris Lattner
0561b3ff9f
Update to use the new MathExtras.h support for log2 computation.
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Patch contributed by Jim Laskey!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22594 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-02 19:26:06 +00:00
Chris Lattner
3f270130b5
add a pass name to make debugging dumps nicer
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22588 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-02 19:07:49 +00:00
Andrew Lenharth
5bca0da936
update function codes to reflect /su flags that have been added since this was written
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22571 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-01 20:06:01 +00:00
Andrew Lenharth
01c8f6e452
use llabs not abs
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22569 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-01 17:47:28 +00:00
Jeff Cohen
d29b6aa608
Keep tabs and trailing spaces out.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22565 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30 18:33:25 +00:00
Chris Lattner
a88da08c6e
fix a typeo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22561 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30 00:43:00 +00:00
Chris Lattner
a35e1dfd12
Change the fp to integer code to not perform 2-byte stores followed by
...
1 byte loads and other operations. This is bad for store-forwarding on
common CPUs. We now do this:
fnstcw WORD PTR [%ESP]
mov %AX, WORD PTR [%ESP]
instead of:
fnstcw WORD PTR [%ESP]
mov %AL, BYTE PTR [%ESP + 1]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22559 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30 00:17:52 +00:00
Chris Lattner
01546c5d50
Use a custom expander for all FP to int conversions, as the X86 only has
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FP-to-int-in-memory: this exposes the load from the stored slot to the
selection dag, allowing it to be folded into other operaions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22556 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30 00:05:54 +00:00
Andrew Lenharth
422f3d58a8
turn off GOT on archs that didn't use it (not that it appeard to harm them much with it on)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22553 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29 23:32:02 +00:00
Chris Lattner
5d06b8caae
Implement a FIXME: move a bunch of cruft for handling FP_TO_*INT operations
...
that the X86 does not support to the legalizer. This allows it to be better
optimized, etc, and will help with SSE support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22551 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29 01:00:29 +00:00
Chris Lattner
f7443dace5
Don't forget to diddle with the control word when performing an FISTP64.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22550 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29 00:54:34 +00:00
Chris Lattner
745d538119
Use a custom expander to compile this:
...
long %test4(double %X) {
%tmp.1 = cast double %X to long ; <long> [#uses=1]
ret long %tmp.1
}
to this:
_test4:
sub %ESP, 12
fld QWORD PTR [%ESP + 16]
fistp QWORD PTR [%ESP]
mov %EDX, DWORD PTR [%ESP + 4]
mov %EAX, DWORD PTR [%ESP]
add %ESP, 12
ret
instead of this:
_test4:
sub %ESP, 28
fld QWORD PTR [%ESP + 32]
fstp QWORD PTR [%ESP]
call ___fixdfdi
add %ESP, 28
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22549 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29 00:40:01 +00:00
Andrew Lenharth
98169be50b
support bsr, and more .td simplification
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22543 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-28 18:14:47 +00:00
Andrew Lenharth
a4433e1b31
get lazy JITing working. Some of shootout runs now
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22538 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-28 12:45:20 +00:00
Chris Lattner
988b1dd608
Eliminate an extra copy from R1 that Nate noticed on function calls that
...
have to write arguments to the stack
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22536 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-28 05:23:43 +00:00