Andrew Lenharth
bf363b1165
No, IDEFs shouldn't be JITed
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llvm-svn: 22648
2005-08-04 15:32:36 +00:00
Misha Brukman
8b8272b648
* Unbreak release build
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* Add comments to #endif pragmas for readability
llvm-svn: 22647
2005-08-04 14:22:41 +00:00
Misha Brukman
e094f6c611
* Unbreak optimized build (noticed by Eric van Riet Paap)
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* Comment #endif clauses for readability
llvm-svn: 22646
2005-08-04 14:16:48 +00:00
Nate Begeman
09997f1012
Add Subtarget support to PowerPC. Next up, using it.
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llvm-svn: 22644
2005-08-04 07:12:09 +00:00
Chris Lattner
ea82ef5db1
refactor some code
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llvm-svn: 22643
2005-08-04 01:19:13 +00:00
Chris Lattner
4058094dce
this is not implemented by lsr yet
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llvm-svn: 22642
2005-08-04 01:18:48 +00:00
Chris Lattner
09241be4c7
invert to if's to make the logic simpler
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llvm-svn: 22641
2005-08-04 00:40:47 +00:00
Chris Lattner
df7961ec73
When processing outer loops and we find uses of an IV in inner loops, make
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sure to handle the use, just don't recurse into it.
This permits us to generate this code for a simple nested loop case:
.LBB_foo_0: ; entry
stwu r1, -48(r1)
stw r29, 44(r1)
stw r30, 40(r1)
mflr r11
stw r11, 56(r1)
lis r2, ha16(L_A$non_lazy_ptr)
lwz r30, lo16(L_A$non_lazy_ptr)(r2)
li r29, 1
.LBB_foo_1: ; no_exit.0
bl L_bar$stub
li r2, 1
or r3, r30, r30
.LBB_foo_2: ; no_exit.1
lfd f0, 8(r3)
stfd f0, 0(r3)
addi r4, r2, 1
addi r3, r3, 8
cmpwi cr0, r2, 100
or r2, r4, r4
bne .LBB_foo_2 ; no_exit.1
.LBB_foo_3: ; loopexit.1
addi r30, r30, 800
addi r2, r29, 1
cmpwi cr0, r29, 100
or r29, r2, r2
bne .LBB_foo_1 ; no_exit.0
.LBB_foo_4: ; return
lwz r11, 56(r1)
mtlr r11
lwz r30, 40(r1)
lwz r29, 44(r1)
lwz r1, 0(r1)
blr
instead of this:
_foo:
.LBB_foo_0: ; entry
stwu r1, -48(r1)
stw r28, 44(r1) ;; uses an extra register.
stw r29, 40(r1)
stw r30, 36(r1)
mflr r11
stw r11, 56(r1)
li r30, 1
li r29, 0
or r28, r29, r29
.LBB_foo_1: ; no_exit.0
bl L_bar$stub
mulli r2, r28, 800 ;; unstrength-reduced multiply
lis r3, ha16(L_A$non_lazy_ptr) ;; loop invariant address computation
lwz r3, lo16(L_A$non_lazy_ptr)(r3)
add r2, r2, r3
mulli r4, r29, 800 ;; unstrength-reduced multiply
addi r3, r3, 8
add r3, r4, r3
li r4, 1
.LBB_foo_2: ; no_exit.1
lfd f0, 0(r3)
stfd f0, 0(r2)
addi r5, r4, 1
addi r2, r2, 8 ;; multiple stride 8 IV's
addi r3, r3, 8
cmpwi cr0, r4, 100
or r4, r5, r5
bne .LBB_foo_2 ; no_exit.1
.LBB_foo_3: ; loopexit.1
addi r28, r28, 1 ;;; Many IV's with stride 1
addi r29, r29, 1
addi r2, r30, 1
cmpwi cr0, r30, 100
or r30, r2, r2
bne .LBB_foo_1 ; no_exit.0
.LBB_foo_4: ; return
lwz r11, 56(r1)
mtlr r11
lwz r30, 36(r1)
lwz r29, 40(r1)
lwz r28, 44(r1)
lwz r1, 0(r1)
blr
llvm-svn: 22640
2005-08-04 00:14:11 +00:00
Chris Lattner
8b1b7c9e7d
Teach loop-reduce to see into nested loops, to pull out immediate values
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pushed down by SCEV.
In a nested loop case, this allows us to emit this:
lis r3, ha16(L_A$non_lazy_ptr)
lwz r3, lo16(L_A$non_lazy_ptr)(r3)
add r2, r2, r3
li r3, 1
.LBB_foo_2: ; no_exit.1
lfd f0, 8(r2) ;; Uses offset of 8 instead of 0
stfd f0, 0(r2)
addi r4, r3, 1
addi r2, r2, 8
cmpwi cr0, r3, 100
or r3, r4, r4
bne .LBB_foo_2 ; no_exit.1
instead of this:
lis r3, ha16(L_A$non_lazy_ptr)
lwz r3, lo16(L_A$non_lazy_ptr)(r3)
add r2, r2, r3
addi r3, r3, 8
li r4, 1
.LBB_foo_2: ; no_exit.1
lfd f0, 0(r3)
stfd f0, 0(r2)
addi r5, r4, 1
addi r2, r2, 8
addi r3, r3, 8
cmpwi cr0, r4, 100
or r4, r5, r5
bne .LBB_foo_2 ; no_exit.1
llvm-svn: 22639
2005-08-03 23:44:42 +00:00
Chris Lattner
512f74d445
improve debug output
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llvm-svn: 22638
2005-08-03 23:30:08 +00:00
Nate Begeman
6cd034da8e
Scalar SSE: load +0.0 -> xorps/xorpd
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Scalar SSE: a < b ? c : 0.0 -> cmpss, andps
Scalar SSE: float -> i16 needs to be promoted
llvm-svn: 22637
2005-08-03 23:26:28 +00:00
Chris Lattner
215515c80b
this now passes
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llvm-svn: 22636
2005-08-03 22:51:40 +00:00
Chris Lattner
1dcd811d36
Move from Stage 0 to Stage 1.
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Only emit one PHI node for IV uses with identical bases and strides (after
moving foldable immediates to the load/store instruction).
This implements LoopStrengthReduce/dont_insert_redundant_ops.ll, allowing
us to generate this PPC code for test1:
or r30, r3, r3
.LBB_test1_1: ; Loop
li r2, 0
stw r2, 0(r30)
stw r2, 4(r30)
bl L_pred$stub
addi r30, r30, 8
cmplwi cr0, r3, 0
bne .LBB_test1_1 ; Loop
instead of this code:
or r30, r3, r3
or r29, r3, r3
.LBB_test1_1: ; Loop
li r2, 0
stw r2, 0(r29)
stw r2, 4(r30)
bl L_pred$stub
addi r30, r30, 8 ;; Two iv's with step of 8
addi r29, r29, 8
cmplwi cr0, r3, 0
bne .LBB_test1_1 ; Loop
llvm-svn: 22635
2005-08-03 22:51:21 +00:00
Andrew Lenharth
2865f0fe01
Alpha ABI specifies stack is always 16 byte alligned, and gcc does it, so I will too
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llvm-svn: 22634
2005-08-03 22:33:21 +00:00
Chris Lattner
96367799a2
Rename IVUse to IVUsersOfOneStride, use a struct instead of a pair to
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unify some parallel vectors and get field names more descriptive than
"first" and "second". This isn't lisp afterall :)
llvm-svn: 22633
2005-08-03 22:21:05 +00:00
Chris Lattner
230700ef26
Fix a nasty dangling pointer issue. The ScalarEvolution pass would keep a
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map from instruction* to SCEVHandles. When we delete instructions, we have
to tell it about it. We would run into nasty cases where new instructions
were reallocated at old instruction addresses and get the old map values.
Bad bad bad :(
llvm-svn: 22632
2005-08-03 21:36:09 +00:00
Chris Lattner
e69b731c71
Fix this to test the BE we care about
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llvm-svn: 22631
2005-08-03 21:01:46 +00:00
Chris Lattner
b2f675c588
Fix an obvious bug in the Log2 stuff that broke SingleSource/UnitTests/2005-05-12-Int64ToFP
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last night.
llvm-svn: 22630
2005-08-03 20:53:19 +00:00
Chris Lattner
d124203207
Fix PR611, codegen'ing SREM of FP operands to fmod or fmodf instead of
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the sequence used for integer ops
llvm-svn: 22629
2005-08-03 20:31:37 +00:00
Chris Lattner
eee2daf85d
The correct fix for PR612, which also fixes
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Transforms/LowerInvoke/2005-08-03-InvokeWithPHIUse.ll
llvm-svn: 22628
2005-08-03 18:51:44 +00:00
Chris Lattner
31641138cf
new testcase for PR612
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llvm-svn: 22627
2005-08-03 18:51:15 +00:00
Chris Lattner
edac412122
When inserting code, make sure not to insert it before PHI nodes. This
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fixes PR612 and Transforms/LowerInvoke/2005-08-03-InvokeWithPHI.ll
llvm-svn: 22626
2005-08-03 18:34:29 +00:00
Chris Lattner
a9161fc936
new testcase for PR612
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llvm-svn: 22625
2005-08-03 18:33:48 +00:00
Nate Begeman
3c0178c886
Add a couple rlwinm tests for bitfield clears
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llvm-svn: 22624
2005-08-03 18:27:17 +00:00
Nate Begeman
5a5045430c
Update rlwimi tests to catch all the cases we care about
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llvm-svn: 22623
2005-08-03 18:11:23 +00:00
Chris Lattner
ed6b5692c7
Testcase that used to crash simplifycfg
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llvm-svn: 22622
2005-08-03 18:01:07 +00:00
Chris Lattner
3672ceb70b
Fix Transforms/SimplifyCFG/2005-08-03-PHIFactorCrash.ll, a problem that
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occurred while bugpointing another testcase
llvm-svn: 22621
2005-08-03 17:59:45 +00:00
Chris Lattner
62b0ecdfb8
add support for Graphviz when viewing CFGs
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llvm-svn: 22620
2005-08-03 17:55:05 +00:00
Misha Brukman
41a00bbfa6
Fix grammar: apostrophe-s ('s) is possessive, not plural; also iff vs. if.
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llvm-svn: 22619
2005-08-03 17:29:52 +00:00
Chris Lattner
42474809e3
Wrap comments to 80 cols, fix code sequence for CountLeadingZeros_64 on
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non-ppc GCC 4.0 machines. Patch by Jim Laskey!
llvm-svn: 22618
2005-08-03 16:53:58 +00:00
Chris Lattner
adfe9f12ef
minor capitalization thing, patch by Jim Laskey
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llvm-svn: 22617
2005-08-03 16:52:22 +00:00
Chris Lattner
260411fd9f
Fix another bug in the clz patch that caused miscompilations when !gcc4
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llvm-svn: 22616
2005-08-03 01:04:40 +00:00
Chris Lattner
6e1d5a8b28
Finally, add the required constraint checks to fix Transforms/SimplifyCFG/2005-08-01-PHIUpdateFail.ll
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the right way
llvm-svn: 22615
2005-08-03 00:59:12 +00:00
Chris Lattner
a0cf824bef
un-xfail this
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llvm-svn: 22614
2005-08-03 00:58:44 +00:00
Chris Lattner
cbf4b650ba
Simplify some code, add the correct pred checks
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llvm-svn: 22613
2005-08-03 00:38:27 +00:00
Chris Lattner
c59014baef
Refactor code out of PropagatePredecessorsForPHIs, turning it into a pure function with no side-effects
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llvm-svn: 22612
2005-08-03 00:29:26 +00:00
Chris Lattner
0f4e0d19cc
use splice instead of remove/insert to avoid some symtab operations
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llvm-svn: 22611
2005-08-03 00:23:42 +00:00
Chris Lattner
adbd086f50
move two functions up in the file, use SafeToMergeTerminators to eliminate
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some duplicated code
llvm-svn: 22610
2005-08-03 00:19:45 +00:00
Chris Lattner
b9efb90e1a
Rip some code out of the main SimplifyCFG function into a subfunction and
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call it from the only place it is live. No functionality changes.
llvm-svn: 22609
2005-08-03 00:11:16 +00:00
Chris Lattner
0bd6f5c29f
This fails for now
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llvm-svn: 22608
2005-08-03 00:10:28 +00:00
Chris Lattner
df31d75597
Disable this patch:
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http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20050801/027345.html
This breaks real programs and only fixes an obscure regression testcase. A
real fix is in development.
llvm-svn: 22606
2005-08-02 23:31:38 +00:00
Chris Lattner
b5906d5783
Change a place to use an arbitrary value instead of null, when possible
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llvm-svn: 22605
2005-08-02 23:29:23 +00:00
Chris Lattner
239aee9cd3
If the user interrupts bugpoint, don't extract loops
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llvm-svn: 22603
2005-08-02 23:25:56 +00:00
Chris Lattner
65d1111d02
Add a note, people are responsible for requesting that they be added to the
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file.
llvm-svn: 22602
2005-08-02 22:10:21 +00:00
Chris Lattner
0755b356ab
Pass -export-dynamic to gcc when compiling with -native and the link is
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performed with -export-dynamic (aka. -disable-internalize).
Patch by Nicholas Riley!
llvm-svn: 22601
2005-08-02 22:07:38 +00:00
Chris Lattner
420424b477
Fix the non-gcc 4.0 paths for countleadingzeros
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Patch fixed by Jim Laskey
llvm-svn: 22598
2005-08-02 20:21:33 +00:00
Chris Lattner
4b86bc6f31
Fix inverted conditionals
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llvm-svn: 22597
2005-08-02 20:06:18 +00:00
Chris Lattner
31a972dc23
one more hunk that got dropped
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llvm-svn: 22596
2005-08-02 19:35:29 +00:00
Chris Lattner
75a8a64de4
This hunk accidentally got dropped. Patch by Jim Laskey
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llvm-svn: 22595
2005-08-02 19:30:55 +00:00
Chris Lattner
cc8ae687e1
Update to use the new MathExtras.h support for log2 computation.
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Patch contributed by Jim Laskey!
llvm-svn: 22594
2005-08-02 19:26:06 +00:00