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3120 Commits

Author SHA1 Message Date
Owen Anderson
3a2b58f3ad Rollback some changes that adversely affected performance. I'm currently rethinking 
my approach to this, so hopefully I'll find a way to do this without making this slower.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36392 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-24 06:40:39 +00:00
Devang Patel
2a5fa18997 Fix 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070423/048333.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36380 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-23 22:42:03 +00:00
Owen Anderson
1b7f584fd8 Make PredicateSimplifier not use DominatorTree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36300 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-21 07:38:12 +00:00
Owen Anderson
cdacc498e4 Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36299 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-21 07:12:44 +00:00
Jeff Cohen
09b362cee6 Comment out usage of write() for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36287 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-20 22:40:10 +00:00
Devang Patel
58d7fbf250 Avoid recursion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36272 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-20 20:04:37 +00:00
Owen Anderson
df07335b46 Move more passes to using ETForest instead of DominatorTree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36271 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-20 06:27:13 +00:00
Zhou Sheng
843f0767ac Make use of ConstantInt::isZero instead of ConstantInt::isNullValue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36261 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-19 05:39:12 +00:00
Zhou Sheng
223d65b651 Make the operations of APInt variables more efficient. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36260 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-19 05:35:00 +00:00
Evan Cheng
cc045d5df8 Revert Owen's last check-in. This is breaking Mac OS X / PPC llvm-gcc bootstrap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36258 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-18 22:39:00 +00:00
Owen Anderson
a65064bb3d Revert changes that caused breakage. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36255 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-18 06:46:57 +00:00
Owen Anderson
325171eed8 Switch more uses of DominatorTree over to ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36254 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-18 05:43:13 +00:00
Owen Anderson
fb4b3d117f Use ETForest instead of DominatorTree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36252 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-18 05:25:43 +00:00
Owen Anderson
ca2563d2d8 Use ETForest instead of DominatorTree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36249 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-18 04:55:33 +00:00
Owen Anderson
ee6dcaf906 Use new ETForest accessor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36248 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-18 04:46:35 +00:00
Owen Anderson
26c37b1fdc Use ETForest instead of DominatorTree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36247 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-18 04:39:32 +00:00
Dan Gohman
747603e39e Spell doFinalization right, so that it is a proper virtual override and 
gets called.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36208 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 18:21:36 +00:00
Chris Lattner
261cdfbe5e remove use of BasicBlock::getNext 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36205 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 18:09:47 +00:00
Chris Lattner
e24c92a698 remove use of BasicBlock::getNext 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36202 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 17:54:12 +00:00
Chris Lattner
a0e1b0e98d eliminate use of Instruction::getNext() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36200 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 17:51:03 +00:00
Chris Lattner
decb0ca18b remove use of Instruction::getNext 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36199 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 17:47:54 +00:00
Devang Patel
ac58516cdc Fix 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/047888.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36182 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 23:03:45 +00:00
Anton Korobeynikov
bed2946a96 Removed tabs everywhere except autogenerated & external files. Add make 
target for tabs checking.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36146 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 18:10:23 +00:00
Chris Lattner
a6a996d319 Fix PR1335 and Transforms/Inline/2007-04-15-InlineEH.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36090 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-15 21:38:06 +00:00
Owen Anderson
3dc6776b33 Remove ImmediateDominator analysis. The same information can be obtained from DomTree. A lot of code for 
constructing ImmediateDominator is now folded into DomTree construction.

This is part of the ongoing work for PR217.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36063 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-15 08:47:27 +00:00
Chris Lattner
83ae2fcacc fix SimplifyLibCalls/IsDigit.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36047 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-15 05:38:40 +00:00
Chris Lattner
31755a024d Extend store merging to support the 'if/then' version in addition to if/then/else. 
This sinks the two stores in this example into a single store in cond_next.  In this
case, it allows elimination of the load as well:

        store double 0.000000e+00, double* @s.3060
        %tmp3 = fcmp ogt double %tmp1, 5.000000e-01             ; <i1> [#uses=1]
        br i1 %tmp3, label %cond_true, label %cond_next
cond_true:              ; preds = %entry
        store double 1.000000e+00, double* @s.3060
        br label %cond_next
cond_next:              ; preds = %entry, %cond_true
        %tmp6 = load double* @s.3060            ; <double> [#uses=1]

This implements Transforms/InstCombine/store-merge.ll:test2


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36040 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-15 01:02:18 +00:00
Chris Lattner
3284d1f18a refactor some code, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36037 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-15 00:07:55 +00:00
Chris Lattner
e34e9a29dc fix long lines 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36031 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-14 23:32:02 +00:00
Chris Lattner
b7300fa8d2 Implement Transforms/InstCombine/vec_extract_elt.ll, transforming: 
define i32 @test(float %f) {
        %tmp7 = insertelement <4 x float> undef, float %f, i32 0
        %tmp17 = bitcast <4 x float> %tmp7 to <4 x i32>
        %tmp19 = extractelement <4 x i32> %tmp17, i32 0
        ret i32 %tmp19
}

into:

define i32 @test(float %f) {
        %tmp19 = bitcast float %f to i32                ; <i32> [#uses=1]
        ret i32 %tmp19
}

On PPC, this is the difference between:

_test:
        mfspr r2, 256
        oris r3, r2, 8192
        mtspr 256, r3
        stfs f1, -16(r1)
        addi r3, r1, -16
        addi r4, r1, -32
        lvx v2, 0, r3
        stvx v2, 0, r4
        lwz r3, -32(r1)
        mtspr 256, r2
        blr

and:

_test:
        stfs f1, -4(r1)
        nop
        nop
        nop
        lwz r3, -4(r1)
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36025 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-14 23:02:14 +00:00
Chris Lattner
6987833651 Implement InstCombine/vec_demanded_elts.ll:test2. This allows us to turn 
unsigned test(float f) {
 return _mm_cvtsi128_si32( (__m128i) _mm_set_ss( f*f ));
}

into:

_test:
        movss 4(%esp), %xmm0
        mulss %xmm0, %xmm0
        movd %xmm0, %eax
        ret

instead of:

_test:
        movss 4(%esp), %xmm0
        mulss %xmm0, %xmm0
        xorps %xmm1, %xmm1
        movss %xmm0, %xmm1
        movd %xmm1, %eax
        ret

GCC gets:

_test:
        subl    $28, %esp
        movss   32(%esp), %xmm0
        mulss   %xmm0, %xmm0
        xorps   %xmm1, %xmm1
        movss   %xmm0, %xmm1
        movaps  %xmm1, %xmm0
        movd    %xmm0, 12(%esp)
        movl    12(%esp), %eax
        addl    $28, %esp
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36020 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-14 22:29:23 +00:00
Chris Lattner
d6b7a1648c avoid copying sets and vectors around. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36017 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-14 22:10:17 +00:00
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