a1d92423cf
Enhance address-mode folding of ISD::ADD to handle cases where the
...
operands can't both be fully folded at the same time. For example,
in the included testcase, a global variable is being added with
an add of two values. The global variable wants RIP-relative
addressing, so it can't share the address with another base
register, but it's still possible to fold the initial add.
llvm-svn: 66865
2009-03-13 02:25:09 +00:00
50a839e61f
Add this test back.
...
llvm-svn: 66838
2009-03-12 23:01:35 +00:00
1f853d6a2a
Revert commit 66140 since it caused several failures
...
in the Ada testcase. Reverting this only covers up
the real problem, which is a nasty conceptual difficulty
in the phi elimination pass: when eliminating phi nodes
in landing pads, the register copies need to come before
the invoke, not at the end of the basic block which is
too late... See PR3784.
llvm-svn: 66826
2009-03-12 21:13:42 +00:00
56f9f80bb1
Typo.
...
llvm-svn: 66797
2009-03-12 17:07:39 +00:00
f16a991262
Fix test after Chris' select changes.
...
llvm-svn: 66795
2009-03-12 16:10:08 +00:00
0dd607cd13
Adjust this test for recent sroa improvements.
...
llvm-svn: 66791
2009-03-12 11:56:12 +00:00
4147f08e44
Move 3 "(add (select cc, 0, c), x) -> (select cc, x, (add, x, c))"
...
related transformations out of target-specific dag combine into the
ARM backend. These were added by Evan in r37685 with no testcases
and only seems to help ARM (e.g. test/CodeGen/ARM/select_xform.ll).
Add some simple X86-specific (for now) DAG combines that turn things
like cond ? 8 : 0 -> (zext(cond) << 3). This happens frequently
with the recently added cp constant select optimization, but is a
very general xform. For example, we now compile the second example
in const-select.ll to:
_test:
movsd LCPI2_0, %xmm0
ucomisd 8(%esp), %xmm0
seta %al
movzbl %al, %eax
movl 4(%esp), %ecx
movsbl (%ecx,%eax,4), %eax
ret
instead of:
_test:
movl 4(%esp), %eax
leal 4(%eax), %ecx
movsd LCPI2_0, %xmm0
ucomisd 8(%esp), %xmm0
cmovbe %eax, %ecx
movsbl (%ecx), %eax
ret
This passes multisource and dejagnu.
llvm-svn: 66779
2009-03-12 06:52:53 +00:00
ef0b7cc2d5
On x86, if the only use of a i64 load is a i64 store, generate a pair of double load and store instead.
...
llvm-svn: 66776
2009-03-12 05:59:15 +00:00
7b87e542dc
add no-unwind, remove duplicate run line.
...
llvm-svn: 66775
2009-03-12 05:56:37 +00:00
1d5cf4bcdd
add nounwinds
...
llvm-svn: 66773
2009-03-12 05:35:33 +00:00
5637df37cd
Revert r66024. The JIT encoding for CALLpcrel32 is wrong -- see PR3773, and the
...
assembly text output uses an indirect call ("call *") instead of a direct call.
llvm-svn: 66735
2009-03-11 23:01:47 +00:00
294943c99b
optimize i8 and i16 tls values.
...
llvm-svn: 66725
2009-03-11 22:40:04 +00:00
6cba561648
My last coalescer fix introduced a subtler one. It's aborting a commuting optimization too late and left the live intervals to be out of sync with instructions. This fixes 8b10b.
...
llvm-svn: 66715
2009-03-11 22:18:44 +00:00
25c6a46a81
For yonah, fix a vector shuffle case for v16i8 where we didn't properly clear some bits.
...
llvm-svn: 66684
2009-03-11 18:47:57 +00:00
be0d672ac4
implement support for C-style string literal concatenation in td files.
...
llvm-svn: 66663
2009-03-11 17:08:13 +00:00
ce6a26cb1a
Fixed a v8i16 shuffle case that should generate a pshufb instead of a pshuflw/hw.
...
llvm-svn: 66645
2009-03-11 06:35:11 +00:00
43d6377f89
reapply my previous patch (r66358) with a tweak to set the
...
alignment of the generated constant pool entry to the
desired alignment of a type. If we don't do this, we end up
trying to do movsd from 4-byte alignment memory. This fixes
450.soplex and 456.hmmer.
llvm-svn: 66641
2009-03-11 05:08:08 +00:00
64b3f9d7a7
Two coalescer fixes in one.
...
1. Use the same value# to represent unknown values being merged into sub-registers.
2. When coalescer commute an instruction and the destination is a physical register, update its sub-registers by merging in the extended ranges.
llvm-svn: 66610
2009-03-11 00:03:21 +00:00
63144deea9
Readd test, but XFAIL it.
...
llvm-svn: 66581
2009-03-10 21:31:00 +00:00
aa887653f4
Revert 66358 for now. It's breaking povray, 450.soplex, and 456.hmmer on x86 / Darwin.
...
llvm-svn: 66574
2009-03-10 20:47:18 +00:00
9a9a422886
Tweak the DejaGNU voodoo to match Bill's advice.
...
llvm-svn: 66547
2009-03-10 16:44:45 +00:00
073e4d16c5
Do not attempt to do parial redundancy elimination on void values.
...
Also fixed a punctuation error in the header comment.
This fixes PR3775.
llvm-svn: 66542
2009-03-10 15:04:53 +00:00
51b4a28878
Global variables don't have a corresponding llvm.dbg.declare, yet it is possible
...
to obtain debug info about them.
Introduce helpers to access debug info for global variables. Also introduce a
helper that works for both local and global variables.
llvm-svn: 66541
2009-03-10 13:41:26 +00:00
1c94228de3
If a function is marked alwaysinline, it must be inlined (possibly for correctness). Do so even if the callee has dynamic alloca and the caller doesn't.
...
llvm-svn: 66539
2009-03-10 07:57:50 +00:00
a042a82408
Add radar number.
...
llvm-svn: 66534
2009-03-10 06:53:54 +00:00
1522e2498f
wire up support for emitting "special" values from inline asm
...
format strings with the standard ${:foo} syntax.
llvm-svn: 66527
2009-03-10 05:37:13 +00:00
9895a1c66a
Check for warnings about inappropriate weak_imports.
...
Darwin-specific; marked XFAIL for others.
llvm-svn: 66514
2009-03-10 00:17:39 +00:00
04852aa933
Ignore debug info while evaluating function.
...
llvm-svn: 66490
2009-03-09 23:04:12 +00:00
4249b9a698
Fix PR3763 by using proper APInt methods instead of uint64_t's.
...
llvm-svn: 66434
2009-03-09 20:22:18 +00:00
ce5dfb692a
ARM isLegalAddressImmediate should check if type is a simple type now that optimizer can create values of funky scalar types.
...
llvm-svn: 66429
2009-03-09 19:15:00 +00:00
fb8ded911e
Yet another case where the spiller marked two uses of the same register on the same instruction as kill. This fixes PR3706.
...
llvm-svn: 66428
2009-03-09 19:00:05 +00:00
822015d96e
testcase for PR3744
...
llvm-svn: 66401
2009-03-09 05:44:59 +00:00
21a84f3054
teach SROA to handle promoting vector allocas with a memset into them into
...
a vector type instead of into an integer type.
llvm-svn: 66368
2009-03-08 04:17:04 +00:00
c009757761
Enhance SROA to "promote to scalar" allocas which are
...
memcpy/memmove'd into or out of. This fixes a serious
perf issue that Nate ran into.
llvm-svn: 66366
2009-03-08 04:04:21 +00:00
ec415efb44
Recognize triplets starting with armv5-, armv6- etc. And set the ARM arch version accordingly.
...
llvm-svn: 66365
2009-03-08 04:02:49 +00:00
de22116f39
If a MI uses the same register more than once, only mark one of them as 'kill'.
...
llvm-svn: 66363
2009-03-08 03:58:35 +00:00
ab5a443144
implement an optimization to codegen c ? 1.0 : 2.0 as load { 2.0, 1.0 } + c*4.
...
For 2009-03-07-FPConstSelect.ll we now produce:
_f:
xorl %eax, %eax
testl %edi, %edi
movl $4, %ecx
cmovne %rax, %rcx
leaq LCPI1_0(%rip), %rax
movss (%rcx,%rax), %xmm0
ret
previously we produced:
_f:
subl $4, %esp
cmpl $0, 8(%esp)
movss LCPI1_0, %xmm0
je LBB1_2 ## entry
LBB1_1: ## entry
movss LCPI1_1, %xmm0
LBB1_2: ## entry
movss %xmm0, (%esp)
flds (%esp)
addl $4, %esp
ret
on PPC the code also improves to:
_f:
cntlzw r2, r3
srwi r2, r2, 5
li r3, lo16(LCPI1_0)
slwi r2, r2, 2
addis r3, r3, ha16(LCPI1_0)
lfsx f1, r3, r2
blr
from:
_f:
li r2, lo16(LCPI1_1)
cmplwi cr0, r3, 0
addis r2, r2, ha16(LCPI1_1)
beq cr0, LBB1_2 ; entry
LBB1_1: ; entry
li r2, lo16(LCPI1_0)
addis r2, r2, ha16(LCPI1_0)
LBB1_2: ; entry
lfs f1, 0(r2)
blr
This also improves the existing pic-cpool case from:
foo:
subl $12, %esp
call .Lllvm$1.$piclabel
.Lllvm$1.$piclabel:
popl %eax
addl $_GLOBAL_OFFSET_TABLE_ + [.-.Lllvm$1.$piclabel], %eax
cmpl $0, 16(%esp)
movsd .LCPI1_0@GOTOFF(%eax), %xmm0
je .LBB1_2 # entry
.LBB1_1: # entry
movsd .LCPI1_1@GOTOFF(%eax), %xmm0
.LBB1_2: # entry
movsd %xmm0, (%esp)
fldl (%esp)
addl $12, %esp
ret
to:
foo:
call .Lllvm$1.$piclabel
.Lllvm$1.$piclabel:
popl %eax
addl $_GLOBAL_OFFSET_TABLE_ + [.-.Lllvm$1.$piclabel], %eax
xorl %ecx, %ecx
cmpl $0, 4(%esp)
movl $8, %edx
cmovne %ecx, %edx
fldl .LCPI1_0@GOTOFF(%eax,%edx)
ret
This triggers a few dozen times in spec FP 2000.
llvm-svn: 66358
2009-03-08 01:51:30 +00:00
e313283199
fix a serious pessimization that Tron on IRC pointed out where we would
...
"boolify" pointers, generating really awful code because getting the pointer
value requires a load itself. Before:
_foo:
movb $1, _X.b
ret
_get:
xorl %ecx, %ecx
movb _X.b, %al
testb %al, %al
movl $_Y, %eax
cmove %ecx, %eax
ret
With the xform disabled:
_foo:
movl $_Y, _X
ret
_get:
movl _X, %eax
ret
llvm-svn: 66351
2009-03-07 23:32:02 +00:00
ff659b5b86
Arithmetic instructions don't set EFLAGS bits OF and CF bits
...
the same say the "test" instruction does in overflow cases,
so eliminating the test is only safe when those bits aren't
needed, as is the case for COND_E and COND_NE, or if it
can be proven that no overflow will occur. For now, just
restrict the optimization to COND_E and COND_NE and don't
do any overflow analysis.
llvm-svn: 66318
2009-03-07 01:58:32 +00:00
211f3c0f97
Add a comment.
...
llvm-svn: 66278
2009-03-06 17:59:58 +00:00
0658cac532
Trailing whitespace.
...
llvm-svn: 66269
2009-03-06 12:25:56 +00:00
6a64f907c6
Trailing whitespace.
...
llvm-svn: 66268
2009-03-06 12:21:40 +00:00
ed7228319a
While thinking about the one-definition-rule and trying
...
to find a tiny mouse hole to squeeze through, it struck
me that globals without a name can be considered internal
since they can't be referenced from outside the current
module. This patch makes GlobalOpt give them internal
linkage. Also done for aliases even though they always
have names, since in my opinion anonymous aliases should
be allowed for consistency with global variables and
functions. So if that happens one day, this code is ready!
llvm-svn: 66267
2009-03-06 10:21:56 +00:00
25b625165f
While converting an aggregate to scalare, ignore and remove aggregate's debug info.
...
llvm-svn: 66262
2009-03-06 07:03:54 +00:00
5aed7765b8
While hoisting instruction to speculatively execute simple bb, ignore dbg intrinsics.
...
llvm-svn: 66255
2009-03-06 06:00:17 +00:00
e8c6d3102d
Skip DbgInfoIntrinsic.
...
llvm-svn: 66244
2009-03-06 02:59:27 +00:00
15af5524a4
Fix ScheduleDAGRRList::CopyAndMoveSuccessors' handling of nodes
...
with multiple chain operands. This can occur when the scheduler
has added chain operands to a node that already has a chain
operand, in order to handle physical register dependencies.
This fixes an llvm-gcc bootstrap failure on x86-64 introduced
in r66058.
llvm-svn: 66240
2009-03-06 02:23:01 +00:00
fc507a1f9c
Revert 66224.
...
llvm-svn: 66233
2009-03-06 01:39:36 +00:00
d926aaa28f
Revert rev. 66167.
...
We are still not out of woods yet.
llvm-svn: 66232
2009-03-06 01:37:41 +00:00
ab16577ade
Do not let debug info prevert globalopt from shriking a global vars to boolean.
...
llvm-svn: 66224
2009-03-06 00:21:00 +00:00
2c2f192c74
Fix the "test" optimization to recognize "dec" as an add of
...
negative one, as subtracts of immediates are canonicalized
to adds.
llvm-svn: 66180
2009-03-05 19:32:48 +00:00
14cc4a458e
Make this test more thorough. Not only should there be no %esi,
...
there should be no spilling of anything.
llvm-svn: 66179
2009-03-05 19:31:32 +00:00
709d6ac46d
GlobalOpt only process non constant local GVs while optimizing global vars.
...
If non constant local GV named A is used by a constant local GV named B (e.g. llvm.dbg.variable) and B is not used by anyone else then eliminate A as well as B.
In other words, debug info should not interfere in removal of unused GV.
--This life, and those below, will be ignored--
M test/Transforms/GlobalOpt/2009-03-03-dbg.ll
M lib/Transforms/IPO/GlobalOpt.cpp
llvm-svn: 66167
2009-03-05 18:12:02 +00:00
b7922dee15
Do not split edges to EH landing pads. It will cause code size explosion.
...
llvm-svn: 66140
2009-03-05 06:31:26 +00:00
abe4192442
Ignore the debug info intrinsics when looking for dependency through basic block.
...
llvm-svn: 66119
2009-03-05 01:45:43 +00:00
19ce8619da
Should have XFAILed this test.
...
llvm-svn: 66086
2009-03-04 22:29:34 +00:00
803da0db79
Temporarily revert r65994. It was causing rdar://6646455.
...
llvm-svn: 66083
2009-03-04 22:02:09 +00:00
55d7b2ac4f
Re-apply 66008, now that the unfoldMemoryOperand bug is fixed.
...
llvm-svn: 66058
2009-03-04 19:44:21 +00:00
5c204c92a4
Fix PR3720 by properly propagating alignment information from memcpy/memmove
...
onto element accesses.
llvm-svn: 66053
2009-03-04 19:20:50 +00:00
0dedc114de
Add a restore folder, which shaves a dozen or so machineinstrs off oggenc. Update a testcase to check this.
...
llvm-svn: 66029
2009-03-04 08:52:31 +00:00
9edd616b59
Fix PR3666: isel calls to constant addresses.
...
llvm-svn: 66024
2009-03-04 06:48:53 +00:00
7604d37723
PR3686: make the legalizer handle bitcast from i80 to x86 long double.
...
llvm-svn: 66021
2009-03-04 06:23:34 +00:00
6728f892be
Revert r66004 for now; it's causing a variety of test failures.
...
llvm-svn: 66008
2009-03-04 03:54:19 +00:00
e08f4cb9a1
Rename test.
...
llvm-svn: 66006
2009-03-04 02:47:25 +00:00
fe8d71f42a
Teach the x86 backend to eliminate "test" instructions by using the EFLAGS
...
result from add, sub, inc, and dec instructions in simple cases.
llvm-svn: 66004
2009-03-04 02:33:24 +00:00
b8905c4e2c
Fix PR3701. 1. X86 target renamed eflags register to flags. This matches what llvm-gcc generates so codegen knows flags register is being clobbered by inline asm. 2. BURR scheduler should also check if inline asm nodes can clobber "live" physical registers. Previously it was only checking target nodes with implicit defs.
...
llvm-svn: 65996
2009-03-04 01:41:49 +00:00
812459613b
If a global constant is dead then global's debug info should not prevent the optimizer in deleting the global. And while deleting global, delete global's debug info also.
...
llvm-svn: 65994
2009-03-04 01:22:23 +00:00
0365d3b8b5
Make my earlier patch to skip debug intrinsics
...
when counting work; it was only off by 1.
llvm-svn: 65993
2009-03-04 01:20:34 +00:00
6d2714738f
The DAG combiner was performing a BT combine. The BT combine had a value of -1,
...
so it changed it into a 31 via the TLO.ShrinkDemandedConstant() call. Then it
would go through the DAG combiner again. This time it had a value of 31, which
was turned into a -1 by TLI.SimplifyDemandedBits(). This would ping pong
forever.
Teach the TLO.ShrinkDemandedConstant() call not to lower a value if the demanded
value is an XOR of all ones.
llvm-svn: 65985
2009-03-04 00:18:06 +00:00
09c3e8ec00
Instruction counters must skip the bitcasts that
...
feed into llvm.dbg.declare nodes, as well as
the debug directives themselves.
llvm-svn: 65976
2009-03-03 22:36:47 +00:00
77456b7ab4
When removing a store to an alloca that has only one
...
use, check also for the case where it has two uses,
the other being a llvm.dbg.declare. This is needed so
debug info doesn't affect codegen.
llvm-svn: 65970
2009-03-03 21:26:39 +00:00
7fcd6148f7
Remove accidental check-ins in r65960. :-(
...
llvm-svn: 65961
2009-03-03 19:25:16 +00:00
a68fc7af63
Use > instead of >=. We want to promote aggregates of 128-bytes.
...
llvm-svn: 65960
2009-03-03 19:18:49 +00:00
506035105c
Ignore the debug info intrinsics when adding instructions into alias sets.
...
llvm-svn: 65934
2009-03-03 06:02:04 +00:00
fcf4ecec45
Testcase for line number sinking in InstCombine.
...
llvm-svn: 65911
2009-03-03 01:10:01 +00:00
d50ebbdf3f
If branch conditions' one successor is dominating another non-latch successor then this loop's iteration space can not be restricted. In this example block bb5 is always executed.
...
llvm-svn: 65902
2009-03-02 23:39:14 +00:00
5795a6091d
Fix PR3694: add an instcombine micro-optimization that helps
...
clean up when using variable length arrays in llvm-gcc.
llvm-svn: 65832
2009-03-02 09:18:21 +00:00
a9e981225e
Fix a problem with DAGCombine on 64b targets where folding
...
extracts + build_vector into a shuffle would fail, because the
type of the new build_vector would not be legal. Try harder to
create a legal build_vector type. Note: this will be totally
irrelevant once vector_shuffle no longer takes a build_vector for
shuffle mask.
New:
_foo:
xorps %xmm0, %xmm0
xorps %xmm1, %xmm1
subps %xmm1, %xmm1
mulps %xmm0, %xmm1
addps %xmm0, %xmm1
movaps %xmm1, 0
Old:
_foo:
xorps %xmm0, %xmm0
movss %xmm0, %xmm1
xorps %xmm2, %xmm2
unpcklps %xmm1, %xmm2
pshufd $80, %xmm1, %xmm1
unpcklps %xmm1, %xmm2
pslldq $16, %xmm2
pshufd $57, %xmm2, %xmm1
subps %xmm0, %xmm1
mulps %xmm0, %xmm1
addps %xmm0, %xmm1
movaps %xmm1, 0
llvm-svn: 65791
2009-03-01 23:44:07 +00:00
491f9e89ae
Functions marked malloc are noalias return.
...
llvm-svn: 65775
2009-03-01 16:19:31 +00:00
ef821b5fbe
Adjust this test for recent llvm-gcc changes.
...
llvm-svn: 65771
2009-03-01 15:01:51 +00:00
c2f95b56db
Minor optimization:
...
Look for situations like this:
%reg1024<def> = MOV r1
%reg1025<def> = MOV r0
%reg1026<def> = ADD %reg1024, %reg1025
r0 = MOV %reg1026
Commute the ADD to hopefully eliminate an otherwise unavoidable copy.
llvm-svn: 65752
2009-03-01 02:03:43 +00:00
25f282f566
tweak this to accept asmprinter changes. I have no way to verify this, hopefully
...
the buildbot will work.
llvm-svn: 65750
2009-03-01 01:28:40 +00:00
89d856e9e0
Fix a pretty awesome bug that only happened in a strange case with anonymous
...
types. This was reading the uint for the keyword after the token was advanced.
llvm-svn: 65743
2009-03-01 00:53:13 +00:00
3c4f6be2b4
adjust for asmprinter change.
...
llvm-svn: 65741
2009-03-01 00:26:51 +00:00
fb97bdc6a7
adjust for asmprinter change.
...
llvm-svn: 65740
2009-03-01 00:25:46 +00:00
b23aad01de
adjust test to make it more robust
...
llvm-svn: 65739
2009-03-01 00:24:40 +00:00
3243ea111e
Fix a long-standing bug and misfeature of the disassembler: when dealing with a
...
stripped .bc file, it didn't make any attempt to try to reuse anonymous types.
This causes an amazing type explosion due to types getting duplicated everywhere
they are referenced and other problems.
This also caused correctness issues, because opaque types are unique for each time
they are uttered in the file. This means that stripping a .bc file could produce
a .ll file that could not be assembled (e.g. 2009-02-28-StripOpaqueName.ll).
This patch fixes both of these issues.
llvm-svn: 65738
2009-03-01 00:03:38 +00:00
e2a87a98b3
one less space, fixes failure with rebuilt llvm-gcc.
...
llvm-svn: 65728
2009-02-28 22:20:02 +00:00
6311d06b2f
There is a way to specify targets that should succeed. It's the "XTARGET"
...
keyword.
llvm-svn: 65692
2009-02-28 12:11:01 +00:00
398dee1c4a
Last commit accidentially deleted this code.
...
llvm-svn: 65679
2009-02-28 06:02:14 +00:00
a079d31fd4
Unable to say "TARGET: *-*-darwin*"; falling back to "XFAIL: linux,ia64,alpha,sparc".
...
llvm-svn: 65667
2009-02-28 00:56:37 +00:00
c08336adc3
Testcase to insure C strings go to the cstring
...
section. Darwin-specific.
llvm-svn: 65655
2009-02-27 22:35:12 +00:00
000421eade
Refactor TLS code and add some tests. The tests and expected results are:
...
pic | declaration | linkage | visibility |
!pic | declaration | external | default | tls1.ll tls2.ll | local exec
pic | declaration | external | default | tls1-pic.ll tls2-pic.ll | general dynamic
!pic | !declaration | external | default | tls3.ll tls4.ll | initial exec
pic | !declaration | external | default | tls3-pic.ll tls4-pic.ll | general dynamic
!pic | declaration | external | hidden | tls7.ll tls8.ll | local exec
pic | declaration | external | hidden | X | local dynamic
!pic | !declaration | external | hidden | tls9.ll tls10.ll | local exec
pic | !declaration | external | hidden | X | local dynamic
!pic | declaration | internal | default | tls5.ll tls6.ll | local exec
pic | declaration | internal | default | X | local dynamic
The ones marked with an X have not been implemented since local dynamic is not implemented.
llvm-svn: 65632
2009-02-27 13:37:18 +00:00
2ad43a97cc
Make sure this test passes on linux-ppc.
...
llvm-svn: 65600
2009-02-27 00:51:50 +00:00
b2f5eaefbe
Update another test for the LoopInfo::print changes.
...
llvm-svn: 65598
2009-02-27 00:20:19 +00:00
b4e896baed
Update this test for the LoopInfo::print changes.
...
llvm-svn: 65597
2009-02-27 00:17:49 +00:00
8d0b4d4fd6
MachineLICM CSE should match destination register classes; avoid hoisting implicit_def's.
...
llvm-svn: 65592
2009-02-27 00:02:22 +00:00
df86f29347
make sure that make fully evaluates variables when determining how compile_c and
...
friends should work. This fixes 2006-11-30-Pubnames.cpp and friends on darwin
with the new -mmacosx-version-min change.
llvm-svn: 65564
2009-02-26 19:19:26 +00:00
264e46e1e9
Ignore dbg info intrinsics when folding conditional branch to
...
conditional branch predecessors.
llvm-svn: 65509
2009-02-26 06:56:37 +00:00
40abb7b5d0
ADDS{D|S}rr_Int and MULS{D|S}rr_Int are not commutable. The users of these intrinsics expect the high bits will not be modified.
...
llvm-svn: 65499
2009-02-26 03:12:02 +00:00
ca2d65467b
The last commit was overly conservative. It's ok to reuse value that's already marked livein.
...
llvm-svn: 65498
2009-02-26 03:02:21 +00:00
8b08bf9eca
Fix a typo that prevents hello.mm from running (and runs hello.m twice).
...
llvm-svn: 65493
2009-02-26 00:16:33 +00:00
a49de9de2e
Revert BuildVectorSDNode related patches: 65426, 65427, and 65296.
...
llvm-svn: 65482
2009-02-25 22:49:59 +00:00
af618171f4
Fix PR3667
...
llvm-svn: 65464
2009-02-25 18:20:01 +00:00
c642e53b8c
Check that records with a known constant size are not
...
copied field by LLVM field if the record has a variable
sized field in it. The problem is that the LLVM field
will not completely cover the variable sized gcc field.
llvm-svn: 65463
2009-02-25 18:10:49 +00:00
5d9cc1763b
Don't block basic block with only SwitchInst to fold into predecessors.
...
llvm-svn: 65456
2009-02-25 15:34:27 +00:00
0bddac16a8
Rename ScalarEvolution's getIterationCount to getBackedgeTakenCount,
...
to more accurately describe what it does. Expand its doxygen comment
to describe what the backedge-taken count is and how it differs
from the actual iteration count of the loop. Adjust names and
comments in associated code accordingly.
llvm-svn: 65382
2009-02-24 18:55:53 +00:00
786c5973f7
- Use the "Fast" flag instead of "OptimizeForSize" to determine whether to emit
...
a DBG_LABEL or not. We want to fall back to the original way of emitting debug
info when we're in -O0/-fast mode.
- Add plumbing in to pass the "Fast" flag to places that need it.
- XFAIL DebugInfo/deaddebuglabel.ll. This is finding 11 labels instead of 8. I
need to investigate still.
llvm-svn: 65367
2009-02-24 02:35:30 +00:00
3204dac652
Add a testcase for the problem fixed in r65289.
...
llvm-svn: 65365
2009-02-24 02:17:42 +00:00
4f356bb9b0
Fix a ValueTracking rule: RHS means operand 1, not 0. Add a simple
...
ashr instcombine to help expose this code. And apply the fix to
SelectionDAG's copy of this code too.
llvm-svn: 65364
2009-02-24 02:00:40 +00:00
98bac99265
Un-XFAIL this test.
...
llvm-svn: 65355
2009-02-24 00:37:28 +00:00
e288082644
While folding unconditional return move DbgRegionEndInst into the predecessor, instead of removing it. This fixes following tests from llvmgcc42 testsuite.
...
gcc.c-torture/execute/20000605-3.c
gcc.c-torture/execute/20020619-1.c
gcc.c-torture/execute/20030920-1.c
gcc.c-torture/execute/loop-ivopts-1.c
llvm-svn: 65353
2009-02-24 00:05:16 +00:00
f6e8c77e1c
Back out the change in 64918 that used sign-extensions when promoting
...
trip counts that use signed comparisons. It's not obviously the best
approach for preserving trip count information, and at any rate there
isn't anything in the tree right now that makes use of that, so for
now always using zero-extensions is preferable.
llvm-svn: 65347
2009-02-23 23:20:35 +00:00
318d7376ba
Fast-isel can't do TLS yet, so it should fall back to SDISel
...
if it sees TLS addresses.
llvm-svn: 65341
2009-02-23 22:03:08 +00:00
0fd45016c2
Use the -stack-alignment option instead of using a target triple
...
for avoiding dynamic stack realignment.
llvm-svn: 65319
2009-02-23 16:34:46 +00:00
7c528e95af
Add test case for checkin @r65314.
...
llvm-svn: 65315
2009-02-23 10:15:04 +00:00
9f8fddeed8
Only v1i16 (i.e. _m64) is returned via RAX / RDX.
...
llvm-svn: 65313
2009-02-23 09:03:22 +00:00
9af0d0c97e
Make this test use darwin targe triple, to avoid stack traffic on linux.
...
llvm-svn: 65312
2009-02-23 09:03:06 +00:00
e684da3e5d
Generate better code for v8i16 shuffles on SSE2
...
Generate better code for v16i8 shuffles on SSE2 (avoids stack)
Generate pshufb for v8i16 and v16i8 shuffles on SSSE3 where it is fewer uops.
Document the shuffle matching logic and add some FIXMEs for later further
cleanups.
New tests that test the above.
Examples:
New:
_shuf2:
pextrw $7, %xmm0, %eax
punpcklqdq %xmm1, %xmm0
pshuflw $128, %xmm0, %xmm0
pinsrw $2, %eax, %xmm0
Old:
_shuf2:
pextrw $2, %xmm0, %eax
pextrw $7, %xmm0, %ecx
pinsrw $2, %ecx, %xmm0
pinsrw $3, %eax, %xmm0
movd %xmm1, %eax
pinsrw $4, %eax, %xmm0
ret
=========
New:
_shuf4:
punpcklqdq %xmm1, %xmm0
pshufb LCPI1_0, %xmm0
Old:
_shuf4:
pextrw $3, %xmm0, %eax
movsd %xmm1, %xmm0
pextrw $3, %xmm1, %ecx
pinsrw $4, %ecx, %xmm0
pinsrw $5, %eax, %xmm0
========
New:
_shuf1:
pushl %ebx
pushl %edi
pushl %esi
pextrw $1, %xmm0, %eax
rolw $8, %ax
movd %xmm0, %ecx
rolw $8, %cx
pextrw $5, %xmm0, %edx
pextrw $4, %xmm0, %esi
pextrw $3, %xmm0, %edi
pextrw $2, %xmm0, %ebx
movaps %xmm0, %xmm1
pinsrw $0, %ecx, %xmm1
pinsrw $1, %eax, %xmm1
rolw $8, %bx
pinsrw $2, %ebx, %xmm1
rolw $8, %di
pinsrw $3, %edi, %xmm1
rolw $8, %si
pinsrw $4, %esi, %xmm1
rolw $8, %dx
pinsrw $5, %edx, %xmm1
pextrw $7, %xmm0, %eax
rolw $8, %ax
movaps %xmm1, %xmm0
pinsrw $7, %eax, %xmm0
popl %esi
popl %edi
popl %ebx
ret
Old:
_shuf1:
subl $252, %esp
movaps %xmm0, (%esp)
movaps %xmm0, 16(%esp)
movaps %xmm0, 32(%esp)
movaps %xmm0, 48(%esp)
movaps %xmm0, 64(%esp)
movaps %xmm0, 80(%esp)
movaps %xmm0, 96(%esp)
movaps %xmm0, 224(%esp)
movaps %xmm0, 208(%esp)
movaps %xmm0, 192(%esp)
movaps %xmm0, 176(%esp)
movaps %xmm0, 160(%esp)
movaps %xmm0, 144(%esp)
movaps %xmm0, 128(%esp)
movaps %xmm0, 112(%esp)
movzbl 14(%esp), %eax
movd %eax, %xmm1
movzbl 22(%esp), %eax
movd %eax, %xmm2
punpcklbw %xmm1, %xmm2
movzbl 42(%esp), %eax
movd %eax, %xmm1
movzbl 50(%esp), %eax
movd %eax, %xmm3
punpcklbw %xmm1, %xmm3
punpcklbw %xmm2, %xmm3
movzbl 77(%esp), %eax
movd %eax, %xmm1
movzbl 84(%esp), %eax
movd %eax, %xmm2
punpcklbw %xmm1, %xmm2
movzbl 104(%esp), %eax
movd %eax, %xmm1
punpcklbw %xmm1, %xmm0
punpcklbw %xmm2, %xmm0
movaps %xmm0, %xmm1
punpcklbw %xmm3, %xmm1
movzbl 127(%esp), %eax
movd %eax, %xmm0
movzbl 135(%esp), %eax
movd %eax, %xmm2
punpcklbw %xmm0, %xmm2
movzbl 155(%esp), %eax
movd %eax, %xmm0
movzbl 163(%esp), %eax
movd %eax, %xmm3
punpcklbw %xmm0, %xmm3
punpcklbw %xmm2, %xmm3
movzbl 188(%esp), %eax
movd %eax, %xmm0
movzbl 197(%esp), %eax
movd %eax, %xmm2
punpcklbw %xmm0, %xmm2
movzbl 217(%esp), %eax
movd %eax, %xmm4
movzbl 225(%esp), %eax
movd %eax, %xmm0
punpcklbw %xmm4, %xmm0
punpcklbw %xmm2, %xmm0
punpcklbw %xmm3, %xmm0
punpcklbw %xmm1, %xmm0
addl $252, %esp
ret
llvm-svn: 65311
2009-02-23 08:49:38 +00:00
9d31aca679
Introduce the BuildVectorSDNode class that encapsulates the ISD::BUILD_VECTOR
...
instruction. The class also consolidates the code for detecting constant
splats that's shared across PowerPC and the CellSPU backends (and might be
useful for other backends.) Also introduces SelectionDAG::getBUID_VECTOR() for
generating new BUILD_VECTOR nodes.
llvm-svn: 65296
2009-02-22 23:36:09 +00:00
d853864705
bug 3610: Test case.
...
llvm-svn: 65287
2009-02-22 15:54:44 +00:00
e779595af0
If a use operand is marked isKill, don't forget to add kill to its live interval as well.
...
llvm-svn: 65279
2009-02-22 08:35:56 +00:00
e4ffc030e2
Be bug compatible with gcc by returning MMX values in RAX.
...
llvm-svn: 65274
2009-02-22 08:05:12 +00:00
d44e80d7fc
Don't sign extend the char when expanding char -> int during
...
load(bitcast(char[4] to i32*)) evaluation.
llvm-svn: 65246
2009-02-21 20:50:42 +00:00
42aae86590
Drop bunch of half-working stuff in the ext_weak linkage support.
...
Now we're using one gross, but quite robust hack :) (previous ones
did not work, for example, when ext_weak symbol was used deep inside
constant expression in the initializer).
The proper fix of this problem will require some quite huge asmprinter
changes and that's why was postponed. This fixes PR3629 by the way :)
llvm-svn: 65230
2009-02-21 11:53:32 +00:00
34806b1fa4
If two-address def is dead and the instruction does not define other registers, and it doesn't produce side effects, just delete the instruction.
...
llvm-svn: 65218
2009-02-21 03:14:25 +00:00
107b06c4b9
Teach LSR sink to sink the immediate portion of the common expression back into uses if they fit in address modes of all the uses.
...
llvm-svn: 65215
2009-02-21 02:06:47 +00:00
bef6b2098e
rename a function to indicate that it checks for profitability as well
...
as legality. Make load sinking and gep sinking more careful: we only
do it when it won't pessimize loads from the stack. This has the added
benefit of not producing code that is unanalyzable to SROA.
llvm-svn: 65209
2009-02-21 00:46:50 +00:00
8a9481d50d
Fix strange logic in CollectIVUsers used to determine whether all uses are
...
addresses, part 1. This fixes an obvious logic bug. Previously if the only
in-loop use is a PHI, it would return AllUsesAreAddresses as true.
llvm-svn: 65178
2009-02-20 22:16:49 +00:00
2a9bad5ac1
Support return of MMX values in 64-bit mode.
...
llvm-svn: 65152
2009-02-20 20:43:02 +00:00
f13820148b
Fix a crash in the pre-alloc splitter exposed by recent codegen changes.
...
llvm-svn: 65121
2009-02-20 10:02:23 +00:00
52e8d4cc5d
make these tests pass when run on a G5.
...
llvm-svn: 65117
2009-02-20 07:10:11 +00:00
2a12ae7d1f
Implement "superhero" strength reduction, or full strength
...
reduction of address calculations down to basic pointer arithmetic.
This is currently off by default, as it needs a few other features
before it becomes generally useful. And even when enabled, full
strength reduction is only performed when it doesn't increase
register pressure, and when several other conditions are true.
This also factors out a bunch of exisiting LSR code out of
StrengthReduceStridedIVUsers into separate functions, and tidies
up IV insertion. This actually decreases register pressure even
in non-superhero mode. The change in iv-users-in-other-loops.ll
is an example of this; there are two more adds because there are
two fewer leas, and there is less spilling.
llvm-svn: 65108
2009-02-20 04:17:46 +00:00
dce6011eb5
Temporarily XFAIL this test.
...
llvm-svn: 64987
2009-02-19 00:13:55 +00:00
778c62ccb5
add proper asmwriter and asmparser support for anonymous functions.
...
llvm-svn: 64953
2009-02-18 21:48:13 +00:00
66c5a1dd50
The subprogram die may not exist while creating "default" scope.
...
llvm-svn: 64920
2009-02-18 17:29:38 +00:00
8078b8bddc
Use a sign-extend instead of a zero-extend when promoting a
...
trip count value when the original loop iteration condition is
signed and the canonical induction variable won't undergo signed
overflow. This isn't required for correctness; it just preserves
more information about original loop iteration values.
Add a getTruncateOrSignExtend method to ScalarEvolution,
following getTruncateOrZeroExtend.
llvm-svn: 64918
2009-02-18 17:22:41 +00:00
ad4254935f
Add a test for r61358, which I forgot to add way back when.
...
llvm-svn: 64904
2009-02-18 07:50:22 +00:00
b694533a54
Change the argument type in this test to something less convoluted,
...
since it isn't actually used.
llvm-svn: 64883
2009-02-18 04:25:04 +00:00
a40d5e14ab
GV with null value initializer shouldn't go to BSS if it's meant for a mergeable strings section. Currently it only checks for Darwin. Someone else please check if it should apply to other targets as well.
...
llvm-svn: 64877
2009-02-18 02:19:52 +00:00
8212ebb5cf
Fix a corner case in the new indvars promotion logic: if there
...
are multiple IV's in a loop, some of them may under go signed
or unsigned wrapping even if the IV that's used in the loop
exit condition doesn't. Restrict sign-extension-elimination
and zero-extension-elimination to only those that operate on
the original loop-controlling IV.
llvm-svn: 64866
2009-02-18 00:52:00 +00:00
bf3ba5a1e9
If an alias is dead and so is its aliasee, then globaldce would
...
crash because the alias would still be using the aliasee when the
aliasee was deleted.
llvm-svn: 64844
2009-02-17 23:05:26 +00:00
f4dad74621
And now, not so elegant, test case...
...
llvm-svn: 64838
2009-02-17 22:48:18 +00:00
528987a1e8
Emit debug info for bitfields.
...
llvm-svn: 64815
2009-02-17 21:23:59 +00:00
24f31a0e59
commit a tweaked version of Daniel's patch for PR3599. We now
...
eliminate all the extensions and all but the one required truncate
from the testcase, but the or/and/shift stuff still isn't zapped.
llvm-svn: 64809
2009-02-17 20:47:23 +00:00
f505cd5ebb
A couple of places where reused use operands should be marked kill. This is exposed by recent availability fallthrough changes.
...
llvm-svn: 64745
2009-02-17 06:41:03 +00:00
19b9ed7a30
Testcase for rev. 64704
...
llvm-svn: 64705
2009-02-17 00:15:08 +00:00
161861deb0
Strengthen the "non-constant stride must dominate loop preheader" check.
...
llvm-svn: 64703
2009-02-17 00:13:06 +00:00
f68d29edd5
Fix EnforceKnownAlignment so that it doesn't ever reduce the alignment
...
of an alloca or global variable.
llvm-svn: 64693
2009-02-16 23:02:21 +00:00
ab0c5ecc54
Test case for llvm-gcc rev. 64648.
...
llvm-svn: 64649
2009-02-16 19:24:29 +00:00
Dan Gohman