Chris Lattner
3af3ba8b38
Last minor cleanups, this code still does not work for all cases, but it
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works much better than it used to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2588 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 21:31:18 +00:00
Chris Lattner
d0c668c380
Two Cleanups to generated C code:
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1. Avoid printing *(&globalvariable), instead print globalvariable alone
as a special case.
2. Inline subexpressions into expressions as much as legal that preserves
execution characteristics of expressions. Now we get nice (but
over-parenthesized, oh well) things like:
ltmp_428_7 = spec__putc(((unsigned char )((bsBuff) >> 24)), (bsStream));
instead of five seperate instructions (bsBuff & bsStream are globals).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2587 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 21:18:38 +00:00
Chris Lattner
4fbf26d2fc
* Remove CInstPrintVisitor class, incorporating it into the CWriter class
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* Reorder code in the file to make it more logically laid out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2586 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 20:53:56 +00:00
Chris Lattner
497e19aee0
Remove CLocalVars data structure entirely, instead of building stuff and
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then printing it out, just print as we go.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2585 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 20:39:03 +00:00
Chris Lattner
7683a12e20
Simplify code by removing InstLocalVarsVisitor, replacing it with a simple
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inst_iterator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2584 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 20:33:35 +00:00
Chris Lattner
1f02c8910a
* Clean up how PHI nodes are handled
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* Correct global variable references
* Fix loads & stores with zero indices
* Do not emit an else part of a branch if there is no code (no phi node
and a fallthrough branch), makes code more readable to get:
if (l2_cond240) {
goto l13_bb10;
}
with no else{} branch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2583 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 20:14:10 +00:00
Chris Lattner
53a5b57737
Handle setcc <global*>, 0 instructions, Global pointers are never null!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2582 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 20:11:54 +00:00
Chris Lattner
0aa7cd605d
Give the longer name to the instruction that will probably be eliminated later
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2581 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 20:11:23 +00:00
Chris Lattner
0097e41993
New testcase for wierd combine opportunity found in bzip2 benchmark
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2580 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 19:52:36 +00:00
Chris Lattner
8c8a37061a
Emit:
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l3_reg109 = l81_this->field0;
Instead of:
l3_reg109 = l81_this[0u].field0;
where possible
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2579 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 15:59:50 +00:00
Chris Lattner
8c3c4bfcfe
* Print structures types correctly
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* Clean up generated code to not emit basic block labels and goto
instructions if they are unneccesary (for example, fall throughs)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2578 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 15:49:41 +00:00
Chris Lattner
deed7a5ae3
* Continue cleanup of type printing code
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* Print a newline after a malloc instruction
* Convert unprintable characters to x_ instead of _x so that we don't
generate identifiers that start with underscores
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2577 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 15:18:52 +00:00
Chris Lattner
3ef6dc7bdd
Gut the type printing code so there is only one copy of it instead of 3
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2576 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 14:40:11 +00:00
Chris Lattner
2d05a1acb0
* Remove dead "constant printing" code
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* Mangle names with only a prefix so that they are easier on the eyes.
* Put spaces around binary operators with low precedence to make them easier to read
* Don't prefix function names with &, although it's correct, it's unnecesary and
easier to read without it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2575 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 05:16:40 +00:00
Chris Lattner
2a7ab2e46d
Remove gross "Operand" instance variable
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Remove lots of unneccesary arguments to methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2574 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 04:39:00 +00:00
Chris Lattner
2f49902374
Simplify and clean up function calls.
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Now indirect function calls work, except that function pointer types are not correct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2573 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 04:21:21 +00:00
Chris Lattner
2f5eb4e9a5
* Remove dead function
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* Print C strings correctly
* Expand C escape sequences nicely (ie \n \t, etc get generated instead of hex escapes)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2572 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 03:56:52 +00:00
Chris Lattner
4440826cae
Make Getelementptr, load & store all work the right way.
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Handle global variables correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2571 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 03:50:42 +00:00
Chris Lattner
2f5f51a852
Many random fixes:
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* Use binary operator logic for shifts instead of cloning code
* Unary not is '~' not '!'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2570 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 03:28:37 +00:00
Chris Lattner
f34ee81c5e
Incorporate and purge function before and after printing them so unnamed values
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have some hope of working right.
Function calls do not try to emit an lvalue if they return void.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2569 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 03:12:34 +00:00
Chris Lattner
b5af06a0ec
Factor out the code to print a value to ONE place.
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It turns out that unnamed values DO NOT work at all, that's next on the list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2568 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 03:06:06 +00:00
Chris Lattner
16c7bb2c8f
First wave of cleanups, looks like the first of many.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2567 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 02:28:59 +00:00
Chris Lattner
403717156b
Add ability to transform (x - (y - z)) into (x + (z - y))
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2566 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 01:29:19 +00:00
Chris Lattner
8c7333e17c
Fix broken testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2565 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 01:28:30 +00:00
Chris Lattner
aa3904faff
Clean up dis so that it does not print out code in various traversal orders.
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Now it only output llvm or C code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2564 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-09 01:25:55 +00:00
Chris Lattner
d086fb20eb
Add two new patterns that instcombine should or does handle
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2563 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 23:15:01 +00:00
Chris Lattner
4874680b65
Print out post dominance data structures more nicely
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2562 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 23:11:08 +00:00
Chris Lattner
5c4afb9034
* Combine: A-(-B) -> A + B
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* Bugfix: A + -B and -A + B
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2561 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 22:46:53 +00:00
Chris Lattner
44f87aca32
New testcase for LICM reassociation
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2560 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 22:20:55 +00:00
Chris Lattner
4fd56003ab
Initial checkin of expression reassociation pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2559 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 22:19:27 +00:00
Chris Lattner
540d63cbc7
Add expr reassociation pass prototype
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2558 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 22:19:01 +00:00
Chris Lattner
8947fbcb68
Expose expression reassociation
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2557 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 22:18:34 +00:00
Chris Lattner
94fbab0022
Run expression reassociation as part of gccas
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2556 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 22:18:20 +00:00
Chris Lattner
557a143b82
Add some simple test of reassociation
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2555 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 21:34:22 +00:00
Chris Lattner
8446cf405b
run reassociate tests
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2554 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 21:34:11 +00:00
Chris Lattner
56732fb869
Verify that function call arguments match the function signature
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2553 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 19:49:50 +00:00
Sumant Kowshik
9ddc86c6e5
*** empty log message ***
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2552 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-08 18:09:58 +00:00
Chris Lattner
73e6298c9a
Spell aggressive correctly
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2551 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 22:15:01 +00:00
Chris Lattner
8ca21c245c
Give the unified exit node a name
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2550 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 22:14:45 +00:00
Chris Lattner
1ea5c56795
Spell aggressive right
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2549 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 22:12:52 +00:00
Chris Lattner
a7980c0a08
Fix misspelling
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2548 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 22:12:36 +00:00
Chris Lattner
ea54ab9cd2
Fix bug: test/Regression/Transforms/ADCE/2002-01-31-UseStuckAround.ll
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Cleanup code a lot
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2547 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 22:11:39 +00:00
Chris Lattner
9d5adb0e11
New testcase for adce
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2546 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 21:05:36 +00:00
Chris Lattner
fc29f3b20e
Build the ADCE tests
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2545 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 20:52:15 +00:00
Chris Lattner
d2abd3b81f
ADCE tests
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2544 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 20:51:59 +00:00
Chris Lattner
54753e2790
Implement constant propogation of PHI instructions like this:
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X = phi(0, 0, 0)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2543 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 20:44:59 +00:00
Chris Lattner
0651a9d207
Oops, forgot to check in makefile
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2542 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 20:39:18 +00:00
Chris Lattner
1610df20bf
Add check that phi nodes get constant propogated away
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2541 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 20:32:19 +00:00
Chris Lattner
0a1581bfa8
constprop doesn't delete dead instructions, it just makes them dead.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2540 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 20:25:44 +00:00
Chris Lattner
e473a34caf
Add testcase for not expressions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2539 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-07 20:22:12 +00:00