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Author SHA1 Message Date
Chris Lattner
6e758aee74 Kill the bogon that slipped into my buffer before I committed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17067 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 19:46:33 +00:00
Chris Lattner
061718cba8 Implement InstCombine/getelementptr.ll:test9, which is the source of many 
ugly and giant constnat exprs in some programs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17066 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 19:44:59 +00:00
Chris Lattner
51a2c5aebf New testcase, rework testcases to fail if there are any gep's other than those 
involving %B instead of allowing any geps except %A's.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17065 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 19:44:23 +00:00
Misha Brukman
a04d0a19e3 * Add a space between words 
* Wrap at 80 cols


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17064 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 19:13:58 +00:00
Chris Lattner
2e7ec128f9 Do not erroneously accept revision 6 bytecode files when the format hasn't 
been defined yet!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17063 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:56:02 +00:00
Chris Lattner
9b3b04f82b Update release notes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17062 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:35:57 +00:00
Chris Lattner
6542a46e6f New testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17061 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:28:01 +00:00
Chris Lattner
4c554c589f Add support for undef and unreachable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17059 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:24:35 +00:00
Chris Lattner
9bbcf09431 testcases for undefined and unreachable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17058 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:24:11 +00:00
Chris Lattner
9270efcc5f Fix fix fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17057 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:21:50 +00:00
Chris Lattner
ec7c1ab1da Add support for unreachable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17056 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:21:33 +00:00
Chris Lattner
bd1d382cc4 Add support for undef 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17055 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:19:26 +00:00
Chris Lattner
a79e7cca0d Add support for undef, unreachable, and function flags 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17054 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:18:16 +00:00
Chris Lattner
16710e9574 Parse undef and unreachable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17053 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:17:13 +00:00
Chris Lattner
c17edbdeeb Add support 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17052 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:16:19 +00:00
Chris Lattner
5a083b81c4 Add support for undef and unreachable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17051 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:14:10 +00:00
Chris Lattner
289a49ab7d ADd support for undef and unreachable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17050 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:13:47 +00:00
Chris Lattner
30483b0c84 Teach the X86 backend about unreachable and undef. Among other things, we 
now compile:

'foo() {}' into "ret" instead of "mov EAX, 0; ret"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17049 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:13:05 +00:00
Chris Lattner
a9d12c0a56 Add support for unreachable and undef 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17048 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:12:13 +00:00
Chris Lattner
e87597fb75 Optimize instructions involving undef values. For example X+undef == undef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17047 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:11:37 +00:00
Chris Lattner
82731c793a Add support for UndefValue 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17046 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:10:31 +00:00
Chris Lattner
b20724dff4 When promoting mem2reg, make uninitialized values become undef isntead of 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17045 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:10:06 +00:00
Chris Lattner
5d356a7c82 Handle undef values as undefined on the constant lattice 
ignore unreachable instructions


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17044 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:09:41 +00:00
Chris Lattner
b2f59a2af7 Add note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17043 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:09:25 +00:00
Chris Lattner
7a7ed0274d Add support for the undef value. Implement a new optimization based on globals 
that are initialized with undef.  When promoting malloc to a global, start out
initialized to undef


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17042 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:09:00 +00:00
Chris Lattner
b976e66816 Add support for undef and unreachable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17041 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:08:06 +00:00
Chris Lattner
b9f18592a6 Implement UndefValue class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17040 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:07:16 +00:00
Chris Lattner
c8717b1624 Add support for the unreachable instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17039 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:06:43 +00:00
Chris Lattner
7eb8a52332 Add new UndefValueVal type 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17038 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:06:07 +00:00
Chris Lattner
076b3f1693 Add new UnreachableInst class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17037 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:05:54 +00:00
Chris Lattner
731cde9447 Add new unreachable instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17036 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:05:37 +00:00
Chris Lattner
e1e922e090 Add new UndefValue class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17035 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:05:25 +00:00
Chris Lattner
58fa099475 UndefValue's are constants 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17034 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:05:10 +00:00
Chris Lattner
35eca58d7a Document unreachable instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17033 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:04:13 +00:00
Chris Lattner
a1dad814df Add missing 'Instruction Opcodes' bullet to TOC 
Update for changes in LLVM 1.4 bytecode format.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17032 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:03:55 +00:00
Chris Lattner
b7a16ce3b1 Add a missing dependency 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17031 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 17:12:55 +00:00
Chris Lattner
f146ab1e51 Fix file header 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17030 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 16:37:42 +00:00
Chris Lattner
a35339dfb6 Be more careful about looking for constants when we really want constantint's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17029 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 16:07:10 +00:00
Chris Lattner
1dfc8e5257 None of these have actually been implemented yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17027 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 00:29:30 +00:00
Chris Lattner
795948a5d1 Move the implementation of the instructions clone methods to this file so 
that the vtables for these classes are only instantiated in this translation
unit, not in every xlation unit they are used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17026 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 23:52:53 +00:00
Chris Lattner
f319e832e7 Move the implementation of the clone method for these classes to 
Instructions.cpp, so that a vtable is not emitted into every translation unit
that uses the classes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17025 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 23:52:05 +00:00
Misha Brukman
81dd3d4536 Fix hyphenation and quoting style for great justice 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17024 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 23:22:48 +00:00
Chris Lattner
f91d68be8d There is no reason not to build these in parallel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17023 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 23:22:15 +00:00
Misha Brukman
961ca77e5b Add a space between the type and name of value when printing error message 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17022 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 23:08:50 +00:00
Chris Lattner
4a8167fe5c Don't print a bunch of metrics that are meaningless for external functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17017 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 19:40:31 +00:00
Chris Lattner
9500a6ec2e Fix broken links 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17016 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 17:04:28 +00:00
Chris Lattner
358a9027a8 Instruction select globals with offsets better. For example, on this test 
case:

int C[100];
int foo() {
  return C[4];
}

We now codegen:

foo:
        mov %EAX, DWORD PTR [C + 16]
        ret

instead of:

foo:
        mov %EAX, OFFSET C
        mov %EAX, DWORD PTR [%EAX + 16]
        ret

Other impressive features may be coming later.

This patch is contributed by Jeff Cohen!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17011 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 05:05:29 +00:00
Chris Lattner
8cce7cd0ae Give the X86 JIT the ability to encode global+disp constants. Patch 
contributed by Jeff Cohen!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17010 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 04:53:13 +00:00
Chris Lattner
d416f086cc Give the X86 asm printer the ability to print out addressing modes that have 
constant displacements from global variables.  Patch by Jeff Cohen!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17009 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 04:44:53 +00:00
Chris Lattner
fb3d844e50 Allow X86 addressing modes to represent globals with offsets. Patch contributed 
by Jeff Cohen!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17008 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 04:43:20 +00:00