Chris Lattner
ae143ceb83
avoid iterator invalidation.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36002 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-14 18:06:52 +00:00
Jeff Cohen
98a72203d7
An even better fix.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35998 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-14 17:18:29 +00:00
Jeff Cohen
e4aee1d3a4
Fix recent regression that broke several llvm-tests.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35996 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-14 16:55:19 +00:00
Chris Lattner
35b9b49fd1
Implement a few missing xforms: printf("foo\n") -> puts. printf("x") -> putchar
...
printf("") -> noop. Still need to do the xforms for fprintf.
This implements Transforms/SimplifyLibCalls/Printf.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35984 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-14 01:17:48 +00:00
Chris Lattner
8264a9fcca
in addition to merging, constantmerge should also delete trivially dead globals,
...
in order to clean up after simplifylibcalls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35982 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-14 01:11:54 +00:00
Chris Lattner
6fe5541003
Implement PR1201 and test/Transforms/InstCombine/malloc-free-delete.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35981 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-14 00:20:02 +00:00
Chris Lattner
f25646bfb3
use an accessor to simplify code.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35979 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-14 00:17:39 +00:00
Chris Lattner
c5494af8a9
Now that codegen prepare isn't defeating me, I can finally fix what I set
...
out to do! :)
This fixes a problem where LSR would insert a bunch of code into each MBB
that uses a particular subexpression (e.g. IV+base+C). The problem is that
this code cannot be CSE'd back together if inserted into different blocks.
This patch changes LSR to attempt to insert a single copy of this code and
share it, allowing codegenprepare to duplicate the code if it can be sunk
into various addressing modes. On CodeGen/ARM/lsr-code-insertion.ll,
for example, this gives us code like:
add r8, r0, r5
str r6, [r8, #+4]
..
ble LBB1_4 @cond_next
LBB1_3: @cond_true
str r10, [r8, #+4]
LBB1_4: @cond_next
...
LBB1_5: @cond_true55
ldr r6, LCPI1_1
str r6, [r8, #+4]
instead of:
add r10, r0, r6
str r8, [r10, #+4]
...
ble LBB1_4 @cond_next
LBB1_3: @cond_true
add r8, r0, r6
str r10, [r8, #+4]
LBB1_4: @cond_next
...
LBB1_5: @cond_true55
add r8, r0, r6
ldr r10, LCPI1_1
str r10, [r8, #+4]
Besides being smaller and more efficient, this makes it immediately
obvious that it is profitable to predicate LBB1_3 now :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35972 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-13 20:42:26 +00:00
Chris Lattner
dd77df3cbc
Completely rewrite addressing-mode related sinking of code. In particular,
...
this fixes problems where codegenprepare would sink expressions into load/stores
that are not valid, and fixes cases where it would miss important valid ones.
This fixes several serious codesize and perf issues, particularly on targets
with complex addressing modes like arm and x86. For example, now we compile
CodeGen/X86/isel-sink.ll to:
_test:
movl 8(%esp), %eax
movl 4(%esp), %ecx
cmpl $1233, %eax
ja LBB1_2 #F
LBB1_1: #T
movl $4, (%ecx,%eax,4)
movl $141, %eax
ret
LBB1_2: #F
movl (%ecx,%eax,4), %eax
ret
instead of:
_test:
movl 8(%esp), %eax
leal (,%eax,4), %ecx
addl 4(%esp), %ecx
cmpl $1233, %eax
ja LBB1_2 #F
LBB1_1: #T
movl $4, (%ecx)
movl $141, %eax
ret
LBB1_2: #F
movl (%ecx), %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35970 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-13 20:30:56 +00:00
Devang Patel
4beccb897d
Remove use of SlowOperationInformer.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35967 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-13 18:58:18 +00:00
Devang Patel
60b0d84594
Undo previous check-in.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35966 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-13 18:35:15 +00:00
Devang Patel
02c768608a
Hello uses LLVMSupport.a (SlowerOperationInformer)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35965 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-13 18:28:23 +00:00
Lauro Ramos Venancio
c763552299
Implement the "thread_local" keyword.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35950 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-12 18:32:50 +00:00
Reid Spencer
3234b3e1f2
Build Hello by default so it can be used in test cases.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35922 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11 21:03:37 +00:00
Chris Lattner
ab46275683
Fix Transforms/ScalarRepl/union-pointer.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35906 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11 15:45:25 +00:00
Chris Lattner
8a9f571052
Turn stuff like:
...
icmp slt i32 %X, 0 ; <i1>:0 [#uses=1]
sext i1 %0 to i32 ; <i32>:1 [#uses=1]
into:
%X.lobit = ashr i32 %X, 31 ; <i32> [#uses=1]
This implements InstCombine/icmp.ll:test[34]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35891 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11 06:57:46 +00:00
Chris Lattner
a2e2c9bbf3
Simplify some comparisons to arithmetic, this implements:
...
Transforms/InstCombine/icmp.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35890 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11 06:53:04 +00:00
Chris Lattner
ba41783dbb
canonicalize (x <u 2147483648) -> (x >s -1) and (x >u 2147483647) -> (x <s 0)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35886 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11 06:12:58 +00:00
Chris Lattner
66bc325bff
fix a miscompilation of:
...
define i32 @test(i32 %X) {
entry:
%Y = and i32 %X, 4 ; <i32> [#uses=1]
icmp eq i32 %Y, 0 ; <i1>:0 [#uses=1]
sext i1 %0 to i32 ; <i32>:1 [#uses=1]
ret i32 %1
}
by moving code out of commonIntCastTransforms into visitZExt. Simplify the
APInt gymnastics in it etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35885 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11 05:45:39 +00:00
Chris Lattner
ed4e51e58e
fix a regression introduced by my last patch.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35879 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11 03:27:24 +00:00
Chris Lattner
f4b1818728
Simplify SROA conversion to integer in some ways, make it more general in others.
...
We now tolerate small amounts of undefined behavior, better emulating what
would happen if the transaction actually occurred in memory. This fixes
SingleSource/UnitTests/2007-04-10-BitfieldTest.c on PPC, at least until
Devang gets a chance to fix the CFE from doing undefined things with bitfields :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35875 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11 00:57:54 +00:00
Chris Lattner
81973ef7cb
Strengthen the boundary conditions of this fold, implementing
...
InstCombine/set.ll:test25
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35852 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 23:52:13 +00:00
Owen Anderson
cc221cdf0c
Re-constify things that don't break the build. Last patch in this
...
series, I promise.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35848 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 23:38:18 +00:00
Chris Lattner
9fda270e2c
eliminate the last uses of some TLI methods.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35844 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 23:29:07 +00:00
Owen Anderson
f7c83188cd
Unconst-ify stuff that broke the build.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35843 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 23:08:26 +00:00
Owen Anderson
ad19014591
Const-ify some parameters, and some cosmetic cleanups. No functionality
...
change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35842 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 22:54:50 +00:00
Owen Anderson
0cd0461873
Tabs -> Spaces
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35841 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 22:31:43 +00:00
Owen Anderson
17cba6d232
Improve some _slow_ behavior introduced in my patches the last few days.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35839 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 22:25:09 +00:00
Chris Lattner
579633cd10
switch LSR to use isLegalAddressingMode instead of other simpler hooks
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35837 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 22:20:14 +00:00
Devang Patel
6c36157f3d
Check _all_ PHINodes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35836 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 22:20:10 +00:00
Devang Patel
c415afc726
Insert new pre-header before new header. Original pre-header may
...
happen to be an entry, in such case, it is not a good idea to
insert new block before entry.
Also fix typo in assertion check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35833 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 21:40:43 +00:00
Devang Patel
5464b96073
Preserve canonical loop form.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35829 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 20:19:46 +00:00
Reid Spencer
9101d8647f
Don't link against System or Support library. These things will already
...
be in the opt tool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35827 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 19:17:47 +00:00
Devang Patel
e98815469c
Do not create new pre-header. Reuse original pre-header.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35825 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 19:04:21 +00:00
Devang Patel
4522c8a44c
Simpler for() loops.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35822 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 17:09:13 +00:00
Devang Patel
cfde9594d1
Fix future bug. Of course, Chris spotted this.
...
Handle Argument or Undef as an incoming PHI value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35821 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 16:41:46 +00:00
Devang Patel
24a1c49172
More cosmetic changes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35820 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 16:21:29 +00:00
Devang Patel
322313376a
Only cosmetic changes. Zero functionality Change.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35819 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 16:11:48 +00:00
Chris Lattner
8546409d1b
Fix PR1304 and Transforms/InstCombine/2007-04-08-SingleEltVectorCrash.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35792 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 01:37:55 +00:00
Chris Lattner
599ded1a7f
Eliminate useless insertelement instructions. This implements
...
Transforms/InstCombine/vec_insertelt.ll and fixes PR1286.
We now compile the code from that bug into:
_foo:
movl 4(%esp), %eax
movdqa (%eax), %xmm0
movl 8(%esp), %ecx
psllw (%ecx), %xmm0
movdqa %xmm0, (%eax)
ret
instead of:
_foo:
subl $4, %esp
movl %ebp, (%esp)
movl %esp, %ebp
movl 12(%ebp), %eax
movdqa (%eax), %xmm0
#IMPLICIT_DEF %eax
pinsrw $2, %eax, %xmm0
xorl %ecx, %ecx
pinsrw $3, %ecx, %xmm0
pinsrw $4, %eax, %xmm0
pinsrw $5, %ecx, %xmm0
pinsrw $6, %eax, %xmm0
pinsrw $7, %ecx, %xmm0
movl 8(%ebp), %eax
movdqa (%eax), %xmm1
psllw %xmm0, %xmm1
movdqa %xmm1, (%eax)
movl %ebp, %esp
popl %ebp
ret
woo :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35788 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 01:11:16 +00:00
Owen Anderson
558fc740da
Cleanup some from my DomSet-removal changes. Add a new
...
isReachableFromEntry
test to ETForest to factor a common test out of code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35786 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 00:52:49 +00:00
Chris Lattner
51047859ed
Fix a typo that broke SimplifyLibCalls/SPrintF.ll (pr1315)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35768 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-08 18:11:26 +00:00
Chris Lattner
044e5337f5
reenable this xform, whoops :)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35765 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-08 08:01:49 +00:00
Chris Lattner
6cae0e06ac
Fix regression on Instcombine/apint-or2.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35763 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-08 07:55:22 +00:00
Chris Lattner
c5e7ea49eb
Generalize the code that handles (A&B)|(A&C) to work where B/C are not constants.
...
Add a new xform to simplify (A&B)|(~A&C). THis implements InstCombine/or2.ll:test1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35760 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-08 07:47:01 +00:00
Chris Lattner
5cef3c6eb7
implement a fixme: move optimizations for fwrite out of fputs into a new
...
fwrite optimizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35758 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-08 07:00:35 +00:00
Nick Lewycky
a397ce1cc2
Remove DominatorSet usage from LoopSimplify. Patch from Owen Anderson.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35757 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-08 01:04:30 +00:00
Chris Lattner
0cd3a23d2a
Significantly simplify the clients of GetConstantStringInfo, by having it
...
just return the string itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35755 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 21:58:02 +00:00
Chris Lattner
73f5d42a97
Fix problems in the sprintf optimizer
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35754 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 21:17:51 +00:00
Chris Lattner
3492cda48f
Change CastToCStr to take a pointer instead of a reference.
...
Fix some miscompilations in fprintf optimizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35753 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 21:04:50 +00:00
Chris Lattner
af33e6579a
Fix an off-by-one error that broke Prolangs/deriv2 with llc on x86
...
and Prolangs-C/cdecl
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35749 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 20:19:08 +00:00
Owen Anderson
e9ed4452bc
Add DomSet back, and revert the changes to LoopSimplify. Apparently the
...
ETForest updating mechanisms don't work as I thought they did. These changes
will be reapplied once the issue is worked out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35741 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 18:23:27 +00:00
Nick Lewycky
ac4d664d45
Add support for cast instructions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35734 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 15:48:32 +00:00
Owen Anderson
ba43963e96
Completely purge DomSet. This is the (hopefully) final patch for PR1171.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35731 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 07:17:27 +00:00
Owen Anderson
4f9e58ecdf
Completely purge DomSet from LoopSimplify. This is part of the
...
continuing work on PR1171.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35730 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 06:56:47 +00:00
Owen Anderson
a3ca0b648c
BreakCriticalEdges does still preserve DominatorTree.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35729 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 05:57:09 +00:00
Owen Anderson
2d43519454
Expunge DomSet from BreakCriticalEdges. This is part of the continuing
...
work for PR 1171.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35728 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 05:49:29 +00:00
Owen Anderson
c6fcf29e81
Expunge DomSet from CodeExtractor. This is part of the continuing work
...
on PR1171.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35726 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 05:31:27 +00:00
Nick Lewycky
a995d920d5
Support NE inequality in ValueRanges.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35724 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 04:49:12 +00:00
Owen Anderson
d44008ae40
Expunge a bunch of uses of DomSet from LoopSimplify. Many more remain.
...
This is the beginning of work for PR1171.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35720 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 04:37:14 +00:00
Nick Lewycky
f3a9e368f6
Cleanup. Refactor out the applying of value ranges to its own method.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35719 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 03:36:51 +00:00
Nick Lewycky
b01c77e137
Use TargetData to find the size of a type.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35718 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 03:16:12 +00:00
Nick Lewycky
8ac40dd747
Strengthen icmp snuggling by doing 'compare-or-equal-to' to 'compare'
...
first and then range testing second.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35715 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 02:30:14 +00:00
Devang Patel
c4625da483
Add loop rotation pass.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35714 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 01:25:15 +00:00
Chris Lattner
045af54275
fix a miscompilation in printf optimizer.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35713 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 01:18:36 +00:00
Chris Lattner
ef4fd35726
trunc to bool no longer compares against zero
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35712 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 01:03:46 +00:00
Chris Lattner
71bf3e2ef9
cleanups for strlen optimizer
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35711 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 01:02:00 +00:00
Chris Lattner
679d7188c7
Introduce a new ReplaceCallWith method, which simplifies a lot of code.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35710 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 00:42:32 +00:00
Chris Lattner
db895b82a3
fixes for strcpy optimizer
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35709 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 00:26:18 +00:00
Chris Lattner
7b50c8f278
Fix bugs in strncmp.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35708 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 00:06:57 +00:00
Chris Lattner
ceb375ecf2
fix 3 miscompilations and several compielr crashes in strcmp optimizer.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35707 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-07 00:01:51 +00:00
Chris Lattner
6897fe5861
Fix several nasty bugs in the strchr optimizer, this fixes
...
SimplifyLibCalls/2007-04-06-strchr-miscompile.ll and PR1307
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35706 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-06 23:38:55 +00:00
Chris Lattner
09c11aa7f5
clean up strcat optimizer, no functionality change.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35704 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-06 22:59:33 +00:00
Chris Lattner
c8e1741bb9
rename getConstantStringLength -> GetConstantStringInfo. Make it return
...
the start index of the array as well as the length. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35703 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-06 22:54:17 +00:00
Chris Lattner
4802d90ca8
implement Transforms/InstCombine/malloc2.ll and PR1313
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35700 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-06 18:57:34 +00:00
Chris Lattner
4913bf47fd
Fix Transforms/GlobalOpt/2007-04-05-Crash.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35689 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-05 21:09:42 +00:00
Chris Lattner
1984a32867
Use a worklist-driven algorithm instead of a recursive one.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35680 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-05 01:27:02 +00:00
Dale Johannesen
16ff304e2c
Prevent transformConstExprCastCall from generating conversions that assert
...
elsewhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35668 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-04 19:16:42 +00:00
Jeff Cohen
86796bec50
Fix 2007-04-04-BadFoldBitcastIntoMalloc.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35665 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-04 16:58:57 +00:00
Duncan Sands
0091bf2439
Fix comment.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35655 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-04 06:42:45 +00:00
Chris Lattner
7305084156
Fix a bug I introduced with my patch yesterday which broke Qt (I converted
...
some constant exprs to apints).
Thanks to Anton for tracking down a small testcase that triggered this!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35633 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-03 23:29:39 +00:00
Chris Lattner
01deb9d91c
reinstate the previous two patches, with a bugfix :)
...
ldecod now passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35626 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-03 17:43:25 +00:00
Evan Cheng
d89f41e9bb
Reverting back to 1.723. The last two commits broke JM (and possibily others) on ARM.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35620 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-03 08:11:50 +00:00
Chris Lattner
aed01d1931
split some code out into a helper function
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35615 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-03 05:11:24 +00:00
Chris Lattner
01d8c107ac
Split a whole ton of code out of visitICmpInst into visitICmpInstWithInstAndIntCst.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35614 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-03 04:46:52 +00:00
Chris Lattner
44ad43033e
Fix PR1253 and xor2.ll:test[01]
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35612 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-03 01:47:41 +00:00
Chris Lattner
1d31290634
allow -1 strides to reuse "1" strides.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35607 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-02 22:51:58 +00:00
Zhou Sheng
4a1822a6d8
1. Make use of APInt operation instead of using ConstantExpr::getXXX.
...
2. Use cheaper APInt methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35594 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-02 13:45:30 +00:00
Zhou Sheng
4351c649b2
Use uint32_t for bitwidth instead of unsigned.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35593 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-02 08:20:41 +00:00
Chris Lattner
1ebd89eb6b
Pass the type of the store access, not the type of the store, into the
...
target hook. This allows us to codegen a loop as:
LBB1_1: @cond_next
mov r2, #0
str r2, [r0, +r3, lsl #2 ]
add r3, r3, #1
cmn r3, #1
bne LBB1_1 @cond_next
instead of:
LBB1_1: @cond_next
mov r2, #0
str r2, [r0], #+4
add r3, r3, #1
cmn r3, #1
bne LBB1_1 @cond_next
This looks the same, but has one fewer induction variable (and therefore,
one fewer register) live in the loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35592 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-02 06:34:44 +00:00
Chris Lattner
cd1d6d5b03
Wrap long line
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35588 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-02 05:48:58 +00:00
Chris Lattner
acf4e074a9
use more obvious function name.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35587 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-02 05:42:22 +00:00
Chris Lattner
5c6e2db0c4
simplify (x+c)^signbit as (x+c+signbit), pointed out by PR1288. This implements
...
test/Transforms/InstCombine/xor.ll:test28
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35584 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-02 05:36:22 +00:00
Chris Lattner
c995123182
reduce use of std::set
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35576 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-02 01:44:59 +00:00
Chris Lattner
d9c3a0d7cc
Various passes before isel split edges and do other CFG-restructuring changes.
...
isel has its own particular features that it wants in the CFG, in order to
reduce the number of times a constant is computed, etc. Make sure that we
clean up the CFG before doing any other things for isel. Doing so can
dramatically reduce the number of split edges and reduce the number of
places that constants get computed. For example, this shrinks
CodeGen/Generic/phi-immediate-factoring.ll from 44 to 37 instructions on X86,
and from 21 to 17 MBB's in the output. This is primarily a code size win,
not a performance win.
This implements CodeGen/Generic/phi-immediate-factoring.ll and PR1296.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35575 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-02 01:35:34 +00:00
Chris Lattner
fe35555d09
print the type of an inserted IV in -debug mode.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35563 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-01 22:21:39 +00:00
Chris Lattner
55fc8c4c39
simplify this code, make it work for ap ints
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35561 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-01 20:57:36 +00:00
Zhou Sheng
3a507fda84
Avoid unnecessary APInt construction.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35555 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-01 17:13:37 +00:00
Reid Spencer
e9391fd9b5
For PR1297:
...
Support overloaded intrinsics bswap, ctpop, cttz, ctlz.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35547 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-01 07:35:23 +00:00
Chris Lattner
6abbdf90dd
Fix InstCombine/2007-03-31-InfiniteLoop.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35536 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-01 05:36:37 +00:00