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57c0f5da32
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3368 Commits

Author SHA1 Message Date
Andrew Lenharth
57c0f5da32 .section cleanup, patch from Nicholas Riley 
llvm-svn: 22763
 2005-08-12 16:13:43 +00:00
Jim Laskey
c79447e1ec 1. Added the function isOpcWithIntImmediate to simplify testing of operand with 
specified opcode and an integer constant right operand.

2. Modified ISD::SHL, ISD::SRL, ISD::SRA to use rlwinm when applied after a mask.

llvm-svn: 22761
 2005-08-11 21:59:23 +00:00
Chris Lattner
4d353459a3 Tidied up the use of dyn_cast<ConstantSDNode> by using isIntImmediate more. 
Patch by Jim Laskey.

llvm-svn: 22760
 2005-08-11 17:56:50 +00:00
Chris Lattner
5cba0bb5bb Use a more efficient method of creating integer and float virtual registers 
(avoids an extra level of indirection in MakeReg).

  defined MakeIntReg using RegMap->createVirtualRegister(PPC32::GPRCRegisterClass)
  defined MakeFPReg using RegMap->createVirtualRegister(PPC32::FPRCRegisterClass)

  s/MakeReg(MVT::i32)/MakeIntReg/
  s/MakeReg(MVT::f64)/MakeFPReg/

Patch by Jim Laskey!

llvm-svn: 22759
 2005-08-11 17:15:31 +00:00
Nate Begeman
23479935cc 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.

llvm-svn: 22756
 2005-08-10 20:52:09 +00:00
Chris Lattner
512a5e507e Changes for PPC32ISelPattern.cpp 
1. Clean up how SelectIntImmediateExpr handles use counts.
2. "Subtract from" was not clearing hi 16 bits.

Patch by Jim Laskey

llvm-svn: 22754
 2005-08-10 18:11:33 +00:00
Chris Lattner
91f83576d8 Changed the XOR case to use the isOprNot predicate. 
Patch by Jim Laskey!

llvm-svn: 22750
 2005-08-10 16:35:46 +00:00
Chris Lattner
ad6d368eee 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!

llvm-svn: 22749
 2005-08-10 16:34:52 +00:00
Duraid Madina
6325af5006 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. :)

llvm-svn: 22748
 2005-08-10 12:38:57 +00:00
Chris Lattner
74acf5edc8 Fix a bug compiling: select (i32 < i32), f32, f32 
llvm-svn: 22747
 2005-08-10 03:40:09 +00:00
Chris Lattner
5ad0216bd6 add a optimization note 
llvm-svn: 22732
 2005-08-09 22:30:57 +00:00
Chris Lattner
1277703a48 Update the targets to the new SETCC/CondCodeSDNode interfaces. 
llvm-svn: 22729
 2005-08-09 20:21:10 +00:00
Chris Lattner
1552a40112 Minor cleanup patch, no functionality changes. Written by Jim Laskey. 
llvm-svn: 22727
 2005-08-09 18:29:55 +00:00
Chris Lattner
b3baf30fdd Fix CodeGen/Generic/div-neg-power-2.ll, a regression from last night. 
llvm-svn: 22726
 2005-08-09 18:08:41 +00:00
Nate Begeman
6b842b4883 Factor out some common code, and be smarter about when to emit load hi/lo 
code sequences.

llvm-svn: 22719
 2005-08-08 22:22:56 +00:00
Chris Lattner
afd68f8f76 Remove getImmediateForOpcode, which is now dead. 
Patch by Jim Laskey.

llvm-svn: 22716
 2005-08-08 21:34:13 +00:00
Chris Lattner
f0eb0b2af5 Add new immediate handling support for mul/div. 
Patch by Jim Laskey!

llvm-svn: 22715
 2005-08-08 21:33:23 +00:00
Chris Lattner
8efdc3c8d4 Add support for OR/XOR/SUB immediates that are handled with the new immediate 
way.  This allows ORI/ORIS pairs, for example.

llvm-svn: 22714
 2005-08-08 21:30:29 +00:00
Chris Lattner
051d45ce3c 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.

llvm-svn: 22712
 2005-08-08 21:24:57 +00:00
Chris Lattner
3b23144fc0 Modify the ISD::ADD opcode case to use new immediate constant predicates. 
Includes support for 32-bit constants using addi/addis.

Patch by Jim Laskey.

llvm-svn: 22711
 2005-08-08 21:21:03 +00:00
Chris Lattner
69eed9f8a7 Modify existing support functions to use new immediate constant predicates. 
Patch by Jim Laskey

llvm-svn: 22710
 2005-08-08 21:12:35 +00:00
Chris Lattner
fab821d774 Add support predicates for future immediate constant changes. 
Patch by Jim Laskey

llvm-svn: 22709
 2005-08-08 21:10:27 +00:00
Chris Lattner
f6320ae69a Move IsRunOfOnes to a more logical place and rename to a proper predicate form 
(lowercase isXXX).

Patch by Jim Laskey.

llvm-svn: 22708
 2005-08-08 21:08:09 +00:00
Nate Begeman
f2d22dbd9b Fix JIT encoding of ppc mfocrf instruction; the operands were reversed 
llvm-svn: 22707
 2005-08-08 20:04:52 +00:00
Chris Lattner
93820f4ad7 Consolidate the GPOpt stuff to all use the Subtarget, instead of still 
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.

llvm-svn: 22688
 2005-08-05 22:05:03 +00:00
Chris Lattner
07af090121 adjust to change in getSubtarget() api 
llvm-svn: 22687
 2005-08-05 21:54:27 +00:00
Chris Lattner
79095d3416 Enable gp optimizations by default when available, even when a target triple 
is available, since the target triple doesn't specify whether to use gpopts
or not.

llvm-svn: 22685
 2005-08-05 21:25:13 +00:00
Chris Lattner
d82395fc04 add a note 
llvm-svn: 22681
 2005-08-05 19:18:32 +00:00
Chris Lattner
852038daec don't crash when running the PPC backend on non-ppc hosts without specifying 
a subtarget.

llvm-svn: 22677
 2005-08-05 16:17:22 +00:00
Nate Begeman
c76ffa6717 Hack to naturally align doubles in the constant pool. Remove this once we 
know what The Right Thing To Do is.

llvm-svn: 22660
 2005-08-04 21:04:09 +00:00
Nate Begeman
84d0a2806a Use the new subtarget support to automatically choose the correct ABI 
and asm printer for PowerPC if one is not specified.

llvm-svn: 22659
 2005-08-04 20:49:48 +00:00
Andrew Lenharth
bf363b1165 No, IDEFs shouldn't be JITed 
llvm-svn: 22648
 2005-08-04 15:32:36 +00:00
Nate Begeman
09997f1012 Add Subtarget support to PowerPC. Next up, using it. 
llvm-svn: 22644
 2005-08-04 07:12:09 +00:00
Nate Begeman
6cd034da8e Scalar SSE: load +0.0 -> xorps/xorpd 
Scalar SSE: a < b ? c : 0.0 -> cmpss, andps
Scalar SSE: float -> i16 needs to be promoted

llvm-svn: 22637
 2005-08-03 23:26:28 +00:00
Andrew Lenharth
2865f0fe01 Alpha ABI specifies stack is always 16 byte alligned, and gcc does it, so I will too 
llvm-svn: 22634
 2005-08-03 22:33:21 +00:00
Misha Brukman
41a00bbfa6 Fix grammar: apostrophe-s ('s) is possessive, not plural; also iff vs. if. 
llvm-svn: 22619
 2005-08-03 17:29:52 +00:00
Chris Lattner
adfe9f12ef minor capitalization thing, patch by Jim Laskey 
llvm-svn: 22617
 2005-08-03 16:52:22 +00:00
Chris Lattner
31a972dc23 one more hunk that got dropped 
llvm-svn: 22596
 2005-08-02 19:35:29 +00:00
Chris Lattner
75a8a64de4 This hunk accidentally got dropped. Patch by Jim Laskey 
llvm-svn: 22595
 2005-08-02 19:30:55 +00:00
Chris Lattner
cc8ae687e1 Update to use the new MathExtras.h support for log2 computation. 
Patch contributed by Jim Laskey!

llvm-svn: 22594
 2005-08-02 19:26:06 +00:00
Chris Lattner
3a81e0795b add a pass name to make debugging dumps nicer 
llvm-svn: 22588
 2005-08-02 19:07:49 +00:00
Andrew Lenharth
913742c65f update function codes to reflect /su flags that have been added since this was written 
llvm-svn: 22571
 2005-08-01 20:06:01 +00:00
Andrew Lenharth
0d65956c61 use llabs not abs 
llvm-svn: 22569
 2005-08-01 17:47:28 +00:00
Jeff Cohen
019104459d Keep tabs and trailing spaces out. 
llvm-svn: 22565
 2005-07-30 18:33:25 +00:00
Chris Lattner
11be5c11d5 fix a typeo 
llvm-svn: 22561
 2005-07-30 00:43:00 +00:00
Chris Lattner
a681fc64d6 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]

llvm-svn: 22559
 2005-07-30 00:17:52 +00:00
Chris Lattner
cf208334d9 Use a custom expander for all FP to int conversions, as the X86 only has 
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.

llvm-svn: 22556
 2005-07-30 00:05:54 +00:00
Andrew Lenharth
3a7dc9f0bd turn off GOT on archs that didn't use it (not that it appeard to harm them much with it on) 
llvm-svn: 22553
 2005-07-29 23:32:02 +00:00
Chris Lattner
2aa847898d 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.

llvm-svn: 22551
 2005-07-29 01:00:29 +00:00
Chris Lattner
9db78c43c5 Don't forget to diddle with the control word when performing an FISTP64. 
llvm-svn: 22550
 2005-07-29 00:54:34 +00:00