Commit Graph

1989 Commits

Author SHA1 Message Date
Chris Lattner
2dd538c2d2 add a new value for the command line optn
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30165 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-07 22:32:28 +00:00
Chris Lattner
cdb341dcfa Fix a cross-build issue. The asmsyntax shouldn't be affected by the build
host, it should be affected by the target.  Allow the command line option to
override in either case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30164 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-07 22:29:41 +00:00
Jim Laskey
a0f3d17daa Make target asm info a property of the target machine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30162 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-07 22:06:40 +00:00
Jim Laskey
8e8de8f776 Break out target asm info into separate files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30161 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-07 22:05:02 +00:00
Chris Lattner
ffc0b2663e Eliminate X86ISD::TEST, using X86ISD::CMP instead. Match X86ISD::CMP patterns
using test, which provides nice simplifications like:

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

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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30156 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-07 20:33:45 +00:00
Chris Lattner
b14ca605d7 Some notes on better load folding we could do
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30155 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-07 20:32:01 +00:00
Evan Cheng
ec3bc39413 Consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30152 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-07 19:03:48 +00:00
Jim Laskey
05a059d5d8 Make the x86 asm flavor part of the subtarget info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30146 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-07 12:23:47 +00:00
Evan Cheng
95971c51b0 Clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30140 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-07 01:17:57 +00:00
Evan Cheng
48ff2fb129 Watch out for variable_ops instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30135 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-06 20:32:45 +00:00
Evan Cheng
3530bafe00 Variable ops instructions may ignore the last few operands for code emission.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30134 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-06 20:24:14 +00:00
Jim Laskey
563321a258 Separate target specific asm properties from the asm printers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30126 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-06 18:34:40 +00:00
Chris Lattner
6cdb1ea610 Bugfix to work with the two-addr changes that have been made in the tree recently
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30121 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-05 20:27:32 +00:00
Evan Cheng
2f5993bcf1 Fix a few dejagnu failures. e.g. fast-cc-merge-stack-adj.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30113 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-05 08:32:49 +00:00
Evan Cheng
23b3122c44 JIT encoding bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30112 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-05 05:59:25 +00:00
Chris Lattner
0e42d81a83 Update the X86 JIT to make it work with the new two-addr changes. This also
adds assertions that check to make sure every operand gets emitted.


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


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

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

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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30108 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-05 02:12:02 +00:00
Chris Lattner
2130b99eb2 Fix some X86 JIT failures. This should really come from TargetJITInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30102 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04 18:48:41 +00:00
Chris Lattner
1911fd4f85 Completely rearchitect the interface between targets and the pass manager.
This pass:

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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30081 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04 04:14:57 +00:00
Chris Lattner
dd842e12e1 Add accessor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30080 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04 04:08:58 +00:00
Chris Lattner
c4fa386471 Simplify target construction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30070 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-03 18:44:02 +00:00
Evan Cheng
1453de5aa9 Oops. Bad typo. Without the check of N1.hasOneUse() bad things can happen.
Suppose the TokenFactor can reach the Op:

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

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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30040 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01 22:52:28 +00:00
Evan Cheng
c9676deb23 Minor asm fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29965 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-29 22:14:48 +00:00
Evan Cheng
4a888584ea Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29962 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-29 21:42:58 +00:00
Evan Cheng
780413d462 Don't performance load/op/store transformation if op produces a floating point
or vector result. X86 does not have load/mod/store variants of those
instructions.


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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29956 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-29 18:28:33 +00:00
Evan Cheng
82a35b34fb Avoid making unneeded load/mod/store transformation which can hurt performance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29952 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-29 06:44:17 +00:00
Evan Cheng
67afeceaf0 On Mac, print jump table entries after the function to work around a linker issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29946 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-28 22:14:16 +00:00
Evan Cheng
70e674e95e Add an optional pass to preprocess the DAG before x86 isel to allow selecting more load/mod/store instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29943 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-28 20:10:17 +00:00
Chris Lattner
a4f0b3a084 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29911 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-27 12:54:02 +00:00
Evan Cheng
0b828e08f9 Do not use getTargetNode() and SelectNodeTo() which takes more than 3
SDOperand arguments. Use the variants which take an array and number instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29907 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-27 08:14:06 +00:00
Evan Cheng
95514bae73 SelectNodeTo now returns a SDNode*.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29901 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-26 08:00:10 +00:00
Evan Cheng
9ade218533 Select() no longer require Result operand by reference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29898 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-26 05:34:46 +00:00
Evan Cheng
0469990e79 Match tblgen changes; clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29894 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-26 01:05:16 +00:00
Chris Lattner
8d3e1d6613 Give a good error message when we try to jit inline asm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29891 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-26 00:47:03 +00:00
Nate Begeman
eb883af390 Initial checkin of the Mach-O emitter. There's plenty of fixmes, but it
does emit linkable .o files in very simple cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29850 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-23 21:08:52 +00:00
Chris Lattner
5ea64fd9eb Constify some methods. Patch provided by Anton Vayvod, thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29756 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-17 22:00:08 +00:00
Chris Lattner
5ea7a68e15 Revert this patch, the front-end has been fixed to make it unneccesary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29752 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-17 18:43:24 +00:00
Chris Lattner
b5bc04d38a 'g' is handled by the front-end.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29751 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-17 18:12:28 +00:00
Andrew Lenharth
ad1ed016ce Fix handling of 'g'. Closes 883
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29750 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-17 17:50:12 +00:00
Andrew Lenharth
d337295fb0 Add the 'c' constraint as needed by the linux kernel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29747 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-17 16:07:50 +00:00
Andrew Lenharth
c63e56ee5f Add support for S and D constraints, as needed to compile the linux kernel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29746 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-17 15:35:43 +00:00
Evan Cheng
eb8730d131 Doh. Incorrectly inverted condition. Also add a isOnlyUse check to match tablegen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29741 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-16 23:59:00 +00:00
Evan Cheng
23329f5e03 SelectNodeTo() may return a SDOperand that is different from the input.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29726 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-16 07:30:09 +00:00
Chris Lattner
5c36d78462 add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29722 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-16 02:47:44 +00:00
Nate Begeman
52a51e38dc Emit .set directives for jump table entries when possible, which reduces
the number of relocations in object files, shrinkifying them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29650 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-12 21:29:52 +00:00
Chris Lattner
2b5a82fe1d eliminate extraneous blank line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29627 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-11 21:08:16 +00:00
Chris Lattner
e219945348 Eliminate use of getNode that takes a vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29614 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-11 17:38:39 +00:00
Evan Cheng
64a752f7c7 Match tablegen changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29604 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-11 09:08:15 +00:00