ca342f5f83
Made the Requirements information its own major section and moved it
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between the "Getting Started Quickly" and "Getting Started Slowly" sections.
:)
Removed some of the nit-picky requirements information (i.e. GNU tar and
GNU zip).
Attempted to compact the requirements information so that it is less scary.
llvm-svn: 9290
2003-10-20 16:39:52 +00:00
4bc3958c7b
Make replaceMachineCodeForFunction() return void.
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llvm-svn: 9289
2003-10-20 15:17:12 +00:00
67a5a865ae
Make replaceMachineCodeForFunction return void.
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llvm-svn: 9288
2003-10-20 15:15:17 +00:00
a585d7e768
Make replaceMachineCodeForFunction return void.
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Make it assert by default.
llvm-svn: 9287
2003-10-20 15:14:33 +00:00
f187b7691d
Apparently the dependencies are wrong for this file, so it didn't rebuild it
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when changing Instruction.def. :(
llvm-svn: 9286
2003-10-20 14:12:52 +00:00
2d9c117e21
Reorder for minor efficiency gain
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llvm-svn: 9285
2003-10-20 05:54:26 +00:00
6acb1bedb1
Emit x86 instructions for: A = B op C, where A and B are 16-bit registers,
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C is a constant which can be sign-extended from 8 bits without value loss,
and op is one of: add, sub, imul, and, or, xor.
This allows the JIT to emit the one byte version of the constant instead of
the two or 4 byte version. Because these instructions are very common, this
can save a LOT of code space. For example, I sampled two benchmarks, 176.gcc
and 254.gap.
BM Old New Reduction
176.gcc 2673621 2548962 4.89%
254.gap 498261 475104 4.87%
Note that while the percentage is not spectacular, this did eliminate
124.6 _KILOBYTES_ of codespace from gcc. Not bad.
Note that this doesn't effect the llc version at all, because the assembler
already does this optimization.
llvm-svn: 9284
2003-10-20 05:53:31 +00:00
f2a34aa278
Hrm, a relic from the past. How cute :)
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llvm-svn: 9283
2003-10-20 05:45:49 +00:00
369246d855
Further cleanups and simplifications
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llvm-svn: 9282
2003-10-20 04:48:06 +00:00
358e7c3edb
Eliminate code for pointer size and endianness emulation.
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llvm-svn: 9281
2003-10-20 04:11:23 +00:00
42856eb1bd
The Grammar Police was here.
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llvm-svn: 9280
2003-10-20 04:03:10 +00:00
c265fdc3bb
* Fixed grammar in header
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* Added description of `mem2reg'
llvm-svn: 9279
2003-10-20 03:59:05 +00:00
97e1b55723
* Rename X86::IMULr16 -> X86::IMULrr16
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* Implement R1 = R2 * C where R1 and R2 are 32 or 16 bits. This avoids an
extra copy into a register, reducing register pressure.
llvm-svn: 9278
2003-10-20 03:42:58 +00:00
4705141f28
Don't bother forwarding function references which are external to the program entirely
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llvm-svn: 9274
2003-10-19 23:32:50 +00:00
2b97d6e7cd
Ok, return an explicit path to the shared object, unbreaking code generator
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debugging with the JIT
llvm-svn: 9273
2003-10-19 21:54:13 +00:00
a4004f6678
Fix iterator invalidation problem
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llvm-svn: 9272
2003-10-19 21:48:27 +00:00
24c67e8553
Eliminate unused class
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llvm-svn: 9270
2003-10-19 21:39:41 +00:00
b94550e537
Change the Opcode enum for PHI nodes from "Instruction::PHINode" to "Instruction::PHI" to be more consistent with the other instructions.
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llvm-svn: 9269
2003-10-19 21:34:28 +00:00
fc0bf07db4
Change the Opcode enum for PHI nodes from "Instruction::PHINode" to "Instruction::PHI" to be more consistent with the other instructions.
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This allows removal of a special case from the instvisitor
llvm-svn: 9268
2003-10-19 21:34:11 +00:00
bf87734fa0
* Multiplications by 2^X are turned into shifts. This factors code out of the
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getelementptr code path for use by other code paths (like malloc and alloca).
* Optimize comparisons with zero
* Generate neg, not, inc, and dec instructions, when possible.
This gives some code size wins, which might translate into performance. We'll
see tommorow in the nightly tester.
llvm-svn: 9267
2003-10-19 21:09:10 +00:00
55a8ef0cc8
Add some new instructions. Wheee
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llvm-svn: 9266
2003-10-19 19:25:35 +00:00
98e1f50d0c
Change it to match llvmgcc.html ... why do we have separate pages for these two?
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llvm-svn: 9265
2003-10-19 18:23:05 +00:00
7c49d984d2
Clarify the roles of gccld and gccas.
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Mention that they should really read the gcc manual.
llvm-svn: 9264
2003-10-19 18:15:18 +00:00
cfd030726c
Minor edits; also expand description of '-v' option.
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llvm-svn: 9263
2003-10-19 18:09:24 +00:00
e4cea8cd34
Tweak -plugin description to match bugpoint.html
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llvm-svn: 9262
2003-10-19 18:08:57 +00:00
70e81e2320
Mostly rewritten.
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llvm-svn: 9261
2003-10-19 18:03:11 +00:00
d46f945b43
A minor fix
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llvm-svn: 9260
2003-10-19 17:37:33 +00:00
c852194dec
Take out extra paragraph tag.
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llvm-svn: 9259
2003-10-19 17:37:12 +00:00
8ef235e2fc
Make this (-run) set look like the other (-disable) set.
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llvm-svn: 9258
2003-10-19 17:35:35 +00:00
33534d7ba9
Always say "the test program", part 2.
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Refer to the various "modules" of bugpoint as "debuggers", not
"debugging modes" or "modules". I think this is more evocative of
how they typically act, and it's shorter.
Add a note about how a linker bug can crash bugpoint early.
llvm-svn: 9257
2003-10-19 17:30:36 +00:00
90f86a79c4
Two minor fixes
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llvm-svn: 9256
2003-10-19 17:27:12 +00:00
abe08a6ee0
Minor edits to Description section.
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Add Design Philosophy as a separate subsection. Clarify its last sentence.
Give Automatic Mode Selection a uniquely-named anchor.
Always call the program the "test program", instead of the "initial program",
the "LLVM program", the "test case", the "resultant module", etc.
Try to explain the assumptions a little more, instead of just describing the
process.
llvm-svn: 9255
2003-10-19 17:20:15 +00:00
c8cff0e914
Spell-check.
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Many minor edits.
Rewrite some of the options section for grammatical parallelism,
clarity, and brevity.
llvm-svn: 9254
2003-10-19 17:03:59 +00:00
eb9d2155f3
DeHTMLify the email so that it only gets sent out if something changes.
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Add printouts about failed building and testing.
llvm-svn: 9253
2003-10-19 16:54:00 +00:00
406ac8e741
.string adds an implicit zero at the end. This is not what we wanted.
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This fixes PR#44.
llvm-svn: 9252
2003-10-19 02:51:01 +00:00
4aad8b9ed8
Add debugtype, make output marginally more nice
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llvm-svn: 9251
2003-10-19 02:27:40 +00:00
97d7f8373c
Fix PR #47
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llvm-svn: 9250
2003-10-19 02:14:58 +00:00
ee898b35a1
Fix bug: Jello/2003-10-18-PHINode-ConstantExpr-CondCode-Failure.llx
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This also fixes miscompilation of 176.gcc.
llvm-svn: 9249
2003-10-19 00:26:11 +00:00
f6e098c586
New testcase, distilled from 176.gcc codegen failure
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llvm-svn: 9248
2003-10-18 23:54:45 +00:00
a9a7c92cea
Update compile information
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llvm-svn: 9247
2003-10-18 21:55:47 +00:00
849619e23e
Add usage blurb
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llvm-svn: 9246
2003-10-18 21:55:35 +00:00
0132ae4117
Without this option, the -run-llc mode does not work with shared objects at
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all, making it pointless for use with the code generator debugger. With it,
it works like a charm.
llvm-svn: 9245
2003-10-18 21:54:47 +00:00
f021940b49
Add bugpoint advice section
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llvm-svn: 9244
2003-10-18 21:34:15 +00:00
667ad30e5a
Print -fno-strict-aliasing as well
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llvm-svn: 9243
2003-10-18 21:08:57 +00:00
759b9931fe
Don't leave a trail of bugpoint-execution-output-* breadcrumbs all over the place
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llvm-svn: 9242
2003-10-18 21:02:51 +00:00
9d7eeb6f96
Expand the --args section
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llvm-svn: 9241
2003-10-18 20:57:23 +00:00
4b3da850f4
* Add the -additional-so option
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* Add info about codegen and miscompilation mode
llvm-svn: 9240
2003-10-18 20:54:37 +00:00
b0ce7e2782
Beef up the description of bugpoint a lot. Update for renamed options
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llvm-svn: 9239
2003-10-18 20:36:15 +00:00
9e52550555
Change run-lli -> run-int
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Many people associate lli with the jit, so we don't want to suprise them
llvm-svn: 9238
2003-10-18 20:30:48 +00:00
16d36a1875
Default to using the CBE instead of the Interpreter if no -run-* option is specified
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llvm-svn: 9237
2003-10-18 20:18:20 +00:00
John Criswell