Nate Begeman
2d4c98d79b
Finally fix one of the oldest FIXMEs in the PowerPC backend: correctly
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flag rotate left word immediate then mask insert (rlwimi) as a two-address
instruction, and update the ISel usage of the instruction accordingly.
This will allow us to properly schedule rlwimi, and use it to efficiently
codegen bitfield operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17068 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-16 20:43:38 +00:00
Chris Lattner
6e758aee74
Kill the bogon that slipped into my buffer before I committed.
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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
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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
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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
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* 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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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.
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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
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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.
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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.
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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.
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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