Chris Lattner [Tue, 20 Apr 2004 20:26:03 +0000 (20:26 +0000)]
Fix PR325
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13081
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Chris Lattner [Tue, 20 Apr 2004 20:20:59 +0000 (20:20 +0000)]
Fix PR324 and testcase: Inline/2004-04-20-InlineLinkOnce.llx
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13080
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Chris Lattner [Tue, 20 Apr 2004 20:15:01 +0000 (20:15 +0000)]
New testcase, distilled from PR324
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13079
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Brian Gaeke [Tue, 20 Apr 2004 20:12:57 +0000 (20:12 +0000)]
Make it legal to ask for the type of a specialreg
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13078
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Brian Gaeke [Tue, 20 Apr 2004 18:18:46 +0000 (18:18 +0000)]
Add some PRs which were fixed, but not previously mentioned in the rel. notes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13077
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Chris Lattner [Tue, 20 Apr 2004 16:43:21 +0000 (16:43 +0000)]
Add support for the select instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13076
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Brian Gaeke [Mon, 19 Apr 2004 19:12:12 +0000 (19:12 +0000)]
Make it legal to request a load or store of %fsr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13073
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Brian Gaeke [Mon, 19 Apr 2004 19:09:24 +0000 (19:09 +0000)]
Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13072
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Brian Gaeke [Mon, 19 Apr 2004 18:53:44 +0000 (18:53 +0000)]
Regularize include guards and remove some excess whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13071
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Brian Gaeke [Mon, 19 Apr 2004 18:53:43 +0000 (18:53 +0000)]
Tighten up SparcV9FloatCCRegClass::getRegName()'s assertion - if you ask it for
the name of %fsr (as the comment in SparcV9RegClassInfo.h used to suggest)
you would walk off the end of the FloatCCRegName array.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13070
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Brian Gaeke [Mon, 19 Apr 2004 18:53:42 +0000 (18:53 +0000)]
Regularize include guards, remove some excess whitespace and fix some comments.
Remove the extra %fsr register from SparcV9FloatCCRegClass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13069
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Chris Lattner [Mon, 19 Apr 2004 18:07:02 +0000 (18:07 +0000)]
Initial checkin of a simple loop unswitching pass. It still needs work,
but it's a start, and seems to do it's basic job.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13068
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Chris Lattner [Mon, 19 Apr 2004 18:06:34 +0000 (18:06 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13067
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Chris Lattner [Mon, 19 Apr 2004 06:28:37 +0000 (06:28 +0000)]
Add accessor for a Loop Unswitching pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13066
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Chris Lattner [Mon, 19 Apr 2004 06:26:46 +0000 (06:26 +0000)]
Eliminate a poorly conceived method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13065
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Chris Lattner [Mon, 19 Apr 2004 03:42:32 +0000 (03:42 +0000)]
It's not just a printer, it's actually an analysis too
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13064
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Misha Brukman [Mon, 19 Apr 2004 03:36:47 +0000 (03:36 +0000)]
As per Chris, greatly simplify handling of external functions by using the
wrapper idea uniformly: we can use Value::replaceAllUsesWith() instead of
special-casing by class of user.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13063
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Misha Brukman [Mon, 19 Apr 2004 03:28:39 +0000 (03:28 +0000)]
* Remove note about "UNSUPPORTED: " feature that just became supported
* Fix usage of <p> tag and some grammar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13062
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Misha Brukman [Mon, 19 Apr 2004 03:12:35 +0000 (03:12 +0000)]
* Reorder #includes
* Wrap a long line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13061
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Misha Brukman [Mon, 19 Apr 2004 03:07:29 +0000 (03:07 +0000)]
Display sample bugpoint output with the `code' stylesheet class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13060
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Chris Lattner [Mon, 19 Apr 2004 03:03:19 +0000 (03:03 +0000)]
* Improve file header comment
* Remove #include
* Add some methods to update loop/loopinfo
* Stop explicitly holding the loop depth in the Loop class. Instead, just
dynamically calculate it. This makes it easier to update LoopInfo as a
result of transformations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13059
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Chris Lattner [Mon, 19 Apr 2004 03:02:09 +0000 (03:02 +0000)]
Remove code to update loop depths
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13058
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Chris Lattner [Mon, 19 Apr 2004 03:01:23 +0000 (03:01 +0000)]
Add #include
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13057
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Misha Brukman [Mon, 19 Apr 2004 03:01:01 +0000 (03:01 +0000)]
Add notes about PRs 38 and 290 being fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13056
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Misha Brukman [Mon, 19 Apr 2004 02:56:49 +0000 (02:56 +0000)]
Wrap (some) lines to 80 cols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13055
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Misha Brukman [Mon, 19 Apr 2004 01:12:01 +0000 (01:12 +0000)]
Finally implement rewriting global initializers which use external functions
by creating an internal wrapper function with same signature as the external
function, and use it instead of the "real" function.
The wrapper then calls the external function using the same JIT function
resolution API that has been used before for rewriting instructions, since the
wrapper has an explicit call instruction which we can rewrite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13054
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Chris Lattner [Sun, 18 Apr 2004 23:37:03 +0000 (23:37 +0000)]
Provide an interface that is more convenient for iterating over the blocks
in a loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13052
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Chris Lattner [Sun, 18 Apr 2004 22:46:08 +0000 (22:46 +0000)]
Move isLoopInvariant to the Loop class
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13051
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Chris Lattner [Sun, 18 Apr 2004 22:45:27 +0000 (22:45 +0000)]
Add new method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13050
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Chris Lattner [Sun, 18 Apr 2004 22:45:16 +0000 (22:45 +0000)]
Add new method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13049
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Chris Lattner [Sun, 18 Apr 2004 22:27:10 +0000 (22:27 +0000)]
Correct rewriting of exit blocks after my last patch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13048
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Chris Lattner [Sun, 18 Apr 2004 22:21:41 +0000 (22:21 +0000)]
Fix computation of exit blocks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13047
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Chris Lattner [Sun, 18 Apr 2004 22:15:13 +0000 (22:15 +0000)]
Loop exit sets are no longer explicitly held, they are dynamically computed on demand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13046
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Chris Lattner [Sun, 18 Apr 2004 22:14:10 +0000 (22:14 +0000)]
Change the ExitBlocks list from being explicitly contained in the Loop
structure to being dynamically computed on demand. This makes updating
loop information MUCH easier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13045
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Chris Lattner [Sun, 18 Apr 2004 18:26:38 +0000 (18:26 +0000)]
Spiff is no longer in our tree
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13041
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Chris Lattner [Sun, 18 Apr 2004 18:06:14 +0000 (18:06 +0000)]
Reduce the unrolling limit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13040
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Chris Lattner [Sun, 18 Apr 2004 17:38:42 +0000 (17:38 +0000)]
If the preheader of the loop was the entry block of the function, make sure
that the exit block of the loop becomes the new entry block of the function.
This was causing a verifier assertion on 252.eon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13039
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Chris Lattner [Sun, 18 Apr 2004 17:32:39 +0000 (17:32 +0000)]
Be much more careful about how we update instructions outside of the loop
using instructions inside of the loop. This should fix the MishaTest failure
from last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13038
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Chris Lattner [Sun, 18 Apr 2004 06:55:57 +0000 (06:55 +0000)]
Another testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13037
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Chris Lattner [Sun, 18 Apr 2004 06:54:48 +0000 (06:54 +0000)]
Implement method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13036
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Chris Lattner [Sun, 18 Apr 2004 06:54:34 +0000 (06:54 +0000)]
Add a new method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13035
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Chris Lattner [Sun, 18 Apr 2004 06:27:43 +0000 (06:27 +0000)]
After unrolling our single basic block loop, fold it into the preheader and exit
block. The primary motivation for doing this is that we can now unroll nested loops.
This makes a pretty big difference in some cases. For example, in 183.equake,
we are now beating the native compiler with the CBE, and we are a lot closer
with LLC.
I'm now going to play around a bit with the unroll factor and see what effect
it really has.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13034
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Chris Lattner [Sun, 18 Apr 2004 05:38:37 +0000 (05:38 +0000)]
Fix a bug: this does not preserve the CFG!
While we're at it, add support for updating loop information correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13033
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Chris Lattner [Sun, 18 Apr 2004 05:38:05 +0000 (05:38 +0000)]
Add a new method, add a check missing that caused a segfault if a loop didn't
have a canonical indvar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13032
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Chris Lattner [Sun, 18 Apr 2004 05:37:42 +0000 (05:37 +0000)]
Allow clients to delete loops, add a new method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13031
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Chris Lattner [Sun, 18 Apr 2004 05:21:01 +0000 (05:21 +0000)]
Move loop optimization passes up, add loop unroller
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13030
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Chris Lattner [Sun, 18 Apr 2004 05:20:32 +0000 (05:20 +0000)]
Add prototype
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13029
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Chris Lattner [Sun, 18 Apr 2004 05:20:17 +0000 (05:20 +0000)]
Initial checkin of a simple loop unroller. This pass is extremely basic and
limited. Even in it's extremely simple state (it can only *fully* unroll single
basic block loops that execute a constant number of times), it already helps improve
performance a LOT on some benchmarks, particularly with the native code generators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13028
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Chris Lattner [Sun, 18 Apr 2004 00:52:43 +0000 (00:52 +0000)]
Make the tail duplication threshold accessible from the command line instead of hardcoded
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13025
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Chris Lattner [Sat, 17 Apr 2004 23:49:15 +0000 (23:49 +0000)]
Fix a memory leak. We leaked the vector holding the entries in switch tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13023
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Chris Lattner [Sat, 17 Apr 2004 23:00:51 +0000 (23:00 +0000)]
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13020
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Chris Lattner [Sat, 17 Apr 2004 22:58:41 +0000 (22:58 +0000)]
Add the ability to compute exit values for complex loop using unanalyzable
operations. This allows us to compile this testcase:
int main() {
int h = 1;
do h = 3 * h + 1; while (h <= 256);
printf("%d\n", h);
return 0;
}
into this:
int %main() {
entry:
call void %__main( )
%tmp.6 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([4 x sbyte]* %.str_1, long 0, long 0), int 364 ) ; <int> [#uses=0]
ret int 0
}
This testcase was taken directly from 256.bzip2, believe it or not.
This code is not as general as I would like. Next up is to refactor it
a bit to handle more cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13019
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Chris Lattner [Sat, 17 Apr 2004 18:44:09 +0000 (18:44 +0000)]
If the loop executes a constant number of times, try a bit harder to replace
exit values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13018
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Chris Lattner [Sat, 17 Apr 2004 18:36:24 +0000 (18:36 +0000)]
Add the ability to compute trip counts that are only controlled by constants
even if the loop is using expressions that we can't compute as a closed-form.
This allows us to calculate that this function always returns 55:
int test() {
double X;
int Count = 0;
for (X = 100; X > 1; X = sqrt(X), ++Count)
/*empty*/;
return Count;
}
And allows us to compute trip counts for loops like:
int h = 1;
do h = 3 * h + 1; while (h <= 256);
(which occurs in bzip2), and for this function, which occurs after inlining
and other optimizations:
int popcount()
{
int x = 666;
int result = 0;
while (x != 0) {
result = result + (x & 0x1);
x = x >> 1;
}
return result;
}
We still cannot compute the exit values of result or h in the two loops above,
which means we cannot delete the loop, but we are getting closer. Being able to
compute a constant trip count for these two loops will allow us to unroll them
completely though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13017
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Chris Lattner [Sat, 17 Apr 2004 18:16:10 +0000 (18:16 +0000)]
Fix a HUGE pessimization on X86. The indvars pass was taking this
(familiar) function:
int _strlen(const char *str) {
int len = 0;
while (*str++) len++;
return len;
}
And transforming it to use a ulong induction variable, because the type of
the pointer index was left as a constant long. This is obviously very bad.
The fix is to shrink long constants in getelementptr instructions to intptr_t,
making the indvars pass insert a uint induction variable, which is much more
efficient.
Here's the before code for this function:
int %_strlen(sbyte* %str) {
entry:
%tmp.13 = load sbyte* %str ; <sbyte> [#uses=1]
%tmp.24 = seteq sbyte %tmp.13, 0 ; <bool> [#uses=1]
br bool %tmp.24, label %loopexit, label %no_exit
no_exit: ; preds = %entry, %no_exit
*** %indvar = phi uint [ %indvar.next, %no_exit ], [ 0, %entry ] ; <uint> [#uses=2]
*** %indvar = phi ulong [ %indvar.next, %no_exit ], [ 0, %entry ] ; <ulong> [#uses=2]
%indvar1 = cast ulong %indvar to uint ; <uint> [#uses=1]
%inc.02.sum = add uint %indvar1, 1 ; <uint> [#uses=1]
%inc.0.0 = getelementptr sbyte* %str, uint %inc.02.sum ; <sbyte*> [#uses=1]
%tmp.1 = load sbyte* %inc.0.0 ; <sbyte> [#uses=1]
%tmp.2 = seteq sbyte %tmp.1, 0 ; <bool> [#uses=1]
%indvar.next = add ulong %indvar, 1 ; <ulong> [#uses=1]
%indvar.next = add uint %indvar, 1 ; <uint> [#uses=1]
br bool %tmp.2, label %loopexit.loopexit, label %no_exit
loopexit.loopexit: ; preds = %no_exit
%indvar = cast uint %indvar to int ; <int> [#uses=1]
%inc.1 = add int %indvar, 1 ; <int> [#uses=1]
ret int %inc.1
loopexit: ; preds = %entry
ret int 0
}
Here's the after code:
int %_strlen(sbyte* %str) {
entry:
%inc.02 = getelementptr sbyte* %str, uint 1 ; <sbyte*> [#uses=1]
%tmp.13 = load sbyte* %str ; <sbyte> [#uses=1]
%tmp.24 = seteq sbyte %tmp.13, 0 ; <bool> [#uses=1]
br bool %tmp.24, label %loopexit, label %no_exit
no_exit: ; preds = %entry, %no_exit
*** %indvar = phi uint [ %indvar.next, %no_exit ], [ 0, %entry ] ; <uint> [#uses=3]
%indvar = cast uint %indvar to int ; <int> [#uses=1]
%inc.0.0 = getelementptr sbyte* %inc.02, uint %indvar ; <sbyte*> [#uses=1]
%inc.1 = add int %indvar, 1 ; <int> [#uses=1]
%tmp.1 = load sbyte* %inc.0.0 ; <sbyte> [#uses=1]
%tmp.2 = seteq sbyte %tmp.1, 0 ; <bool> [#uses=1]
%indvar.next = add uint %indvar, 1 ; <uint> [#uses=1]
br bool %tmp.2, label %loopexit, label %no_exit
loopexit: ; preds = %entry, %no_exit
%len.0.1 = phi int [ 0, %entry ], [ %inc.1, %no_exit ] ; <int> [#uses=1]
ret int %len.0.1
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13016
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Chris Lattner [Sat, 17 Apr 2004 18:08:33 +0000 (18:08 +0000)]
Even if there are not any induction variables in the loop, if we can compute
the trip count for the loop, insert one so that we can canonicalize the exit
condition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13015
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Chris Lattner [Fri, 16 Apr 2004 22:35:33 +0000 (22:35 +0000)]
Add support for evaluation of exp/log/log10/pow
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13011
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Chris Lattner [Fri, 16 Apr 2004 18:08:07 +0000 (18:08 +0000)]
Fix some really nasty dominance bugs that were exposed by my patch to
make the verifier more strict. This fixes building zlib
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13002
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Misha Brukman [Fri, 16 Apr 2004 17:37:12 +0000 (17:37 +0000)]
Fix retriving parent Function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13001
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Misha Brukman [Fri, 16 Apr 2004 17:13:52 +0000 (17:13 +0000)]
Fit comment into 80 cols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12996
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Brian Gaeke [Fri, 16 Apr 2004 17:13:44 +0000 (17:13 +0000)]
Regenerated using autoconf-2.57.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12995
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Brian Gaeke [Fri, 16 Apr 2004 17:13:33 +0000 (17:13 +0000)]
Refactor external benchmark checking stuff into one hairy
macro-to-bind-them-all, called EXTERNAL_BENCHMARK().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12994
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Misha Brukman [Fri, 16 Apr 2004 16:55:30 +0000 (16:55 +0000)]
Add idea about a disassembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12993
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Brian Gaeke [Fri, 16 Apr 2004 16:28:33 +0000 (16:28 +0000)]
Switch to including <iostream> for compatibility with gcc-3.0.x (Debian).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12990
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Misha Brukman [Fri, 16 Apr 2004 16:20:07 +0000 (16:20 +0000)]
* Fix capitalization of PICk
* Wrap long lines to 80 cols
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12988
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Brian Gaeke [Fri, 16 Apr 2004 15:57:32 +0000 (15:57 +0000)]
Include <cmath> for compatibility with gcc 3.0.x (the system compiler on
Debian.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12986
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Brian Gaeke [Fri, 16 Apr 2004 15:57:14 +0000 (15:57 +0000)]
Include <string> for compatibility with gcc 3.0.x (the system compiler on
Debian.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12985
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Brian Gaeke [Fri, 16 Apr 2004 15:57:02 +0000 (15:57 +0000)]
As a part of the bootstrapping process, the top-level tools-only target
should not build projects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12984
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Misha Brukman [Fri, 16 Apr 2004 15:47:21 +0000 (15:47 +0000)]
Assert if deleting BasicBlock before removing it from Function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12983
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Misha Brukman [Fri, 16 Apr 2004 15:46:43 +0000 (15:46 +0000)]
Assert if Instruction is being deleted before being removed from BasicBlock.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12982
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Chris Lattner [Fri, 16 Apr 2004 14:12:36 +0000 (14:12 +0000)]
Remove libraries that have no reason to be here, and keep breaking the nightly tester because their makefiles do not have the right dependencies!!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12981
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Chris Lattner [Fri, 16 Apr 2004 06:03:17 +0000 (06:03 +0000)]
Fix some of the strange CBE-only failures that happened last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12980
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Chris Lattner [Fri, 16 Apr 2004 05:51:47 +0000 (05:51 +0000)]
Make sure to check for a very bad class of errors: an instruction
that does not dominate all of its users, but is in the same basic block as
its users. This class of error is what caused the mysterious CBE only
failures last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12979
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Chris Lattner [Fri, 16 Apr 2004 05:35:58 +0000 (05:35 +0000)]
Bugpoint was not correctly capturing stderr! This caused it to "find" bugs
that didn't exist, missing the ones that do :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12978
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Chris Lattner [Fri, 16 Apr 2004 05:17:59 +0000 (05:17 +0000)]
Fix Inline/2004-04-15-InlineDeletesCall.ll
Basically we were using SimplifyCFG as a huge sledgehammer for a simple
optimization. Because simplifycfg does so many things, we can't use it
for this purpose.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12977
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Misha Brukman [Thu, 15 Apr 2004 21:01:21 +0000 (21:01 +0000)]
Add note about easier way to debug tests in the llvm tree.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12972
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Misha Brukman [Thu, 15 Apr 2004 20:49:32 +0000 (20:49 +0000)]
Add note about passing arguments to program being debugged.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12970
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Chris Lattner [Thu, 15 Apr 2004 20:45:45 +0000 (20:45 +0000)]
New testcase that Brian provided which crashes the inliner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12969
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Chris Lattner [Thu, 15 Apr 2004 20:26:22 +0000 (20:26 +0000)]
Fix a bug in the previous checkin: if the exit block is not the same as
the back-edge block, we must check the preincremented value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12968
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Brian Gaeke [Thu, 15 Apr 2004 20:23:13 +0000 (20:23 +0000)]
Give SparcV9CodeEmitter a head-of-file comment and a PassName.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12967
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Misha Brukman [Thu, 15 Apr 2004 15:38:48 +0000 (15:38 +0000)]
If we're going to use tabs, use them consistently. Maybe doxygen will find the
@parameter line documentation that way, too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12966
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Misha Brukman [Thu, 15 Apr 2004 15:33:49 +0000 (15:33 +0000)]
Removed obsolete doxygen options (they were blank anyway).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12965
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Misha Brukman [Thu, 15 Apr 2004 15:30:15 +0000 (15:30 +0000)]
The "best" of both worlds: readable C++ comments and valid HTML For doxygen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12964
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Misha Brukman [Thu, 15 Apr 2004 15:24:55 +0000 (15:24 +0000)]
Don't use invalid HTML in doxygen comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12963
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Misha Brukman [Thu, 15 Apr 2004 15:23:45 +0000 (15:23 +0000)]
Don't use invalid HTML in a doxygen comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12962
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Chris Lattner [Thu, 15 Apr 2004 15:21:43 +0000 (15:21 +0000)]
Change the canonical induction variable that we insert.
Instead of producing code like this:
Loop:
X = phi 0, X2
...
X2 = X + 1
if (X != N-1) goto Loop
We now generate code that looks like this:
Loop:
X = phi 0, X2
...
X2 = X + 1
if (X2 != N) goto Loop
This has two big advantages:
1. The trip count of the loop is now explicit in the code, allowing
the direct implementation of Loop::getTripCount()
2. This reduces register pressure in the loop, and allows X and X2 to be
put into the same register.
As a consequence of the second point, the code we generate for loops went
from:
.LBB2: # no_exit.1
...
mov %EDI, %ESI
inc %EDI
cmp %ESI, 2
mov %ESI, %EDI
jne .LBB2 # PC rel: no_exit.1
To:
.LBB2: # no_exit.1
...
inc %ESI
cmp %ESI, 3
jne .LBB2 # PC rel: no_exit.1
... which has two fewer moves, and uses one less register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12961
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Chris Lattner [Thu, 15 Apr 2004 15:16:02 +0000 (15:16 +0000)]
add some helpful methods. Rearrange #includes to proper order
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12960
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Chris Lattner [Thu, 15 Apr 2004 15:15:40 +0000 (15:15 +0000)]
Add some helpful methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12959
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Chris Lattner [Thu, 15 Apr 2004 15:07:24 +0000 (15:07 +0000)]
Factor a bunch of classes out into a public header
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12958
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Chris Lattner [Thu, 15 Apr 2004 15:06:59 +0000 (15:06 +0000)]
Publically export all of these classes from the ScalarEvolutions.cpp file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12957
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Chris Lattner [Thu, 15 Apr 2004 14:17:43 +0000 (14:17 +0000)]
Unbreak the build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12956
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Chris Lattner [Wed, 14 Apr 2004 22:01:22 +0000 (22:01 +0000)]
Implement a FIXME: if we're going to insert a cast, we might as well only
insert it once!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12955
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John Criswell [Wed, 14 Apr 2004 21:27:56 +0000 (21:27 +0000)]
Remove code to adjust the iterator for llvm.readio and llvm.writeio.
The iterator is pointing at the next instruction which should not disappear
when doing the load/store replacement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12954
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Brian Gaeke [Wed, 14 Apr 2004 21:21:56 +0000 (21:21 +0000)]
Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12953
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Chris Lattner [Wed, 14 Apr 2004 21:11:25 +0000 (21:11 +0000)]
This is a trivial tweak to the addrec insertion code: insert the increment
at the bottom of the loop instead of the top. This reduces the number of
overlapping live ranges a lot, for example, eliminating a spill in an important
loop in 183.equake with linear scan.
I still need to make the exit comparison of the loop use the post-incremented
version of this variable, but this is an easy first step.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12952
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Brian Gaeke [Wed, 14 Apr 2004 17:45:52 +0000 (17:45 +0000)]
Add a TargetData to the PassManager regardless of the TargetMachine.
This should unbreak the Sparc JIT again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12949
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Brian Gaeke [Wed, 14 Apr 2004 17:45:48 +0000 (17:45 +0000)]
Add a copy constructor for TargetData.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12948
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Chris Lattner [Wed, 14 Apr 2004 16:32:34 +0000 (16:32 +0000)]
We are now on LLVM 1.3
Make autoconf default to checking to look to see if our funny directory exists
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12947
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Chris Lattner [Wed, 14 Apr 2004 16:32:09 +0000 (16:32 +0000)]
Regenerated
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12946
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John Criswell [Wed, 14 Apr 2004 15:06:48 +0000 (15:06 +0000)]
Remove the return type check for llvm.readio. This check is done for all
functions and is not needed here.
Simplify the pointer type check per Chris's suggestions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12945
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