f21a220bcd
Implement PR5795 by merging duplicated return blocks. This could go further
...
by merging all returns in a function into a single one, but simplifycfg
currently likes to duplicate the return (an unfortunate choice!)
llvm-svn: 91890
2009-12-22 06:07:30 +00:00
2b297ed9ee
convert to filecheck
...
llvm-svn: 91889
2009-12-22 06:04:26 +00:00
dbf7074296
Fix a bug in !subst where TableGen would go and resubstitute text it had
...
just substituted. This could cause infinite looping in certain
pathological cases.
llvm-svn: 91843
2009-12-21 21:21:34 +00:00
0fc1f6c595
XFAIL these tests on powerpc, under the assumption that no one cares. If you care, feel free to fix.
...
llvm-svn: 91826
2009-12-21 17:31:59 +00:00
8fb07c5a21
fix PR5837 by having SSAUpdate reuse phi nodes for the
...
'GetValueInMiddleOfBlock' case, instead of inserting
duplicates.
A similar fix is almost certainly needed by the machine-level
SSAUpdate implementation.
llvm-svn: 91820
2009-12-21 07:16:11 +00:00
7bc85a931e
add check lines for min/max tests.
...
llvm-svn: 91816
2009-12-21 06:08:50 +00:00
33269813df
really convert this to filecheck.
...
llvm-svn: 91815
2009-12-21 06:06:10 +00:00
d4fb4296df
give instcombine some helper functions for matching MIN and MAX, and
...
implement some optimizations for MIN(MIN()) and MAX(MAX()) and
MIN(MAX()) etc. This substantially improves the code in PR5822 but
doesn't kick in much elsewhere. 2 max's were optimized in
pairlocalalign and one in smg2000.
llvm-svn: 91814
2009-12-21 06:03:05 +00:00
7a72d50de7
filecheckize
...
llvm-svn: 91813
2009-12-21 05:53:13 +00:00
ffbd02829c
enhance x-(-A) -> x+A to preserve NUW/NSW.
...
Use the presence of NSW/NUW to fold "icmp (x+cst), x" to a constant in
cases where it would otherwise be undefined behavior.
Surprisingly (to me at least), this triggers hundreds of the times in
a few benchmarks: lencode, ldecode, and 466.h264ref seem to *really*
like this.
llvm-svn: 91812
2009-12-21 04:04:05 +00:00
900ce231f9
Optimize all cases of "icmp (X+Cst), X" to something simpler. This triggers
...
a bunch in lencode, ldecod, spass, 176.gcc, 252.eon, among others. It is
also the first part of PR5822
llvm-svn: 91811
2009-12-21 03:19:28 +00:00
d18b455086
convert to filecheck
...
llvm-svn: 91810
2009-12-21 03:11:05 +00:00
25bf6f8946
fix an overly conservative caching issue that caused memdep to
...
cache a pointer as being unavailable due to phi trans in the
wrong place. This would cause later queries to fail even when
they didn't involve phi trans.
llvm-svn: 91787
2009-12-19 21:29:22 +00:00
95b431dd32
fix inconsistent use of tabs
...
llvm-svn: 91783
2009-12-19 20:44:43 +00:00
8ac077df57
Emit direction operand in binary insns that stores in memory.
...
llvm-svn: 91777
2009-12-19 13:52:01 +00:00
bda8002e7f
Test cases for changes done in 91768.
...
llvm-svn: 91773
2009-12-19 11:38:14 +00:00
4ad5eba568
fix PR5827 by disabling the phi slicing transformation in a case
...
where instcombine would have to split a critical edge due to a
phi node of an invoke. Since instcombine can't change the CFG,
it has to bail out from doing the transformation.
llvm-svn: 91763
2009-12-19 07:01:15 +00:00
b175de6356
Increase opportunities to optimize (brcond (srl (and c1), c2)).
...
llvm-svn: 91717
2009-12-18 21:31:31 +00:00
532cd232fb
Reapply 91459 with a simple fix for the problem that broke the x86_64-darwin
...
bootstrap. This also replaces the WeakVH references that Chris objected to
with normal Value references.
llvm-svn: 91711
2009-12-18 20:14:40 +00:00
d7015906d0
Make 'set_option' work with list options.
...
This works now: (set_option "list_opt", ["val_1", "val_2", "val_3"])
llvm-svn: 91679
2009-12-18 11:27:26 +00:00
86b9d75dc8
Optimize icmp of null and select of two constants even if the select has
...
multiple uses. (The construct in question was found in gcc.)
llvm-svn: 91675
2009-12-18 08:22:35 +00:00
4cf30b72bf
On recent Intel u-arch's, folding loads into some unary SSE instructions can
...
be non-optimal. To be precise, we should avoid folding loads if the instructions
only update part of the destination register, and the non-updated part is not
needed. e.g. cvtss2sd, sqrtss. Unfolding the load from these instructions breaks
the partial register dependency and it can improve performance. e.g.
movss (%rdi), %xmm0
cvtss2sd %xmm0, %xmm0
instead of
cvtss2sd (%rdi), %xmm0
An alternative method to break dependency is to clear the register first. e.g.
xorps %xmm0, %xmm0
cvtss2sd (%rdi), %xmm0
llvm-svn: 91672
2009-12-18 07:40:29 +00:00
51fbfb726f
Tidy up this testcase and add test for tailcall optimization
...
with unreachable.
llvm-svn: 91650
2009-12-18 01:05:06 +00:00
3152b0471b
Handle ARM inline asm "w" constraints with 64-bit ("d") registers.
...
The change in SelectionDAGBuilder is needed to allow using bitcasts to convert
between f64 (the default type for ARM "d" registers) and 64-bit Neon vector
types. Radar 7457110.
llvm-svn: 91649
2009-12-18 01:03:29 +00:00
7f4326f8b6
Remove "tail" keywords. These calls are not intended to be tail calls.
...
This protects this test from depending on codegen not performing the
tail call optimization by default.
llvm-svn: 91648
2009-12-18 01:02:18 +00:00
78c5919b14
Add test case for the phi reuse patch.
...
llvm-svn: 91642
2009-12-18 00:11:44 +00:00
04d8cb74f3
Instruction fixes, added instructions, and AsmString changes in the
...
X86 instruction tables.
Also (while I was at it) cleaned up the X86 tables, removing tabs and
80-line violations.
This patch was reviewed by Chris Lattner, but please let me know if
there are any problems.
* X86*.td
Removed tabs and fixed 80-line violations
* X86Instr64bit.td
(IRET, POPCNT, BT_, LSL, SWPGS, PUSH_S, POP_S, L_S, SMSW)
Added
(CALL, CMOV) Added qualifiers
(JMP) Added PC-relative jump instruction
(POPFQ/PUSHFQ) Added qualifiers; renamed PUSHFQ to indicate
that it is 64-bit only (ambiguous since it has no
REX prefix)
(MOV) Added rr form going the other way, which is encoded
differently
(MOV) Changed immediates to offsets, which is more correct;
also fixed MOV64o64a to have to a 64-bit offset
(MOV) Fixed qualifiers
(MOV) Added debug-register and condition-register moves
(MOVZX) Added more forms
(ADC, SUB, SBB, AND, OR, XOR) Added reverse forms, which
(as with MOV) are encoded differently
(ROL) Made REX.W required
(BT) Uncommented mr form for disassembly only
(CVT__2__) Added several missing non-intrinsic forms
(LXADD, XCHG) Reordered operands to make more sense for
MRMSrcMem
(XCHG) Added register-to-register forms
(XADD, CMPXCHG, XCHG) Added non-locked forms
* X86InstrSSE.td
(CVTSS2SI, COMISS, CVTTPS2DQ, CVTPS2PD, CVTPD2PS, MOVQ)
Added
* X86InstrFPStack.td
(COM_FST0, COMP_FST0, COM_FI, COM_FIP, FFREE, FNCLEX, FNOP,
FXAM, FLDL2T, FLDL2E, FLDPI, FLDLG2, FLDLN2, F2XM1, FYL2X,
FPTAN, FPATAN, FXTRACT, FPREM1, FDECSTP, FINCSTP, FPREM,
FYL2XP1, FSINCOS, FRNDINT, FSCALE, FCOMPP, FXSAVE,
FXRSTOR)
Added
(FCOM, FCOMP) Added qualifiers
(FSTENV, FSAVE, FSTSW) Fixed opcode names
(FNSTSW) Added implicit register operand
* X86InstrInfo.td
(opaque512mem) Added for FXSAVE/FXRSTOR
(offset8, offset16, offset32, offset64) Added for MOV
(NOOPW, IRET, POPCNT, IN, BTC, BTR, BTS, LSL, INVLPG, STR,
LTR, PUSHFS, PUSHGS, POPFS, POPGS, LDS, LSS, LES, LFS,
LGS, VERR, VERW, SGDT, SIDT, SLDT, LGDT, LIDT, LLDT,
LODSD, OUTSB, OUTSW, OUTSD, HLT, RSM, FNINIT, CLC, STC,
CLI, STI, CLD, STD, CMC, CLTS, XLAT, WRMSR, RDMSR, RDPMC,
SMSW, LMSW, CPUID, INVD, WBINVD, INVEPT, INVVPID, VMCALL,
VMCLEAR, VMLAUNCH, VMRESUME, VMPTRLD, VMPTRST, VMREAD,
VMWRITE, VMXOFF, VMXON) Added
(NOOPL, POPF, POPFD, PUSHF, PUSHFD) Added qualifier
(JO, JNO, JB, JAE, JE, JNE, JBE, JA, JS, JNS, JP, JNP, JL,
JGE, JLE, JG, JCXZ) Added 32-bit forms
(MOV) Changed some immediate forms to offset forms
(MOV) Added reversed reg-reg forms, which are encoded
differently
(MOV) Added debug-register and condition-register moves
(CMOV) Added qualifiers
(AND, OR, XOR, ADC, SUB, SBB) Added reverse forms, like MOV
(BT) Uncommented memory-register forms for disassembler
(MOVSX, MOVZX) Added forms
(XCHG, LXADD) Made operand order make sense for MRMSrcMem
(XCHG) Added register-register forms
(XADD, CMPXCHG) Added unlocked forms
* X86InstrMMX.td
(MMX_MOVD, MMV_MOVQ) Added forms
* X86InstrInfo.cpp: Changed PUSHFQ to PUSHFQ64 to reflect table
change
* X86RegisterInfo.td: Added debug and condition register sets
* x86-64-pic-3.ll: Fixed testcase to reflect call qualifier
* peep-test-3.ll: Fixed testcase to reflect test qualifier
* cmov.ll: Fixed testcase to reflect cmov qualifier
* loop-blocks.ll: Fixed testcase to reflect call qualifier
* x86-64-pic-11.ll: Fixed testcase to reflect call qualifier
* 2009-11-04-SubregCoalescingBug.ll: Fixed testcase to reflect call
qualifier
* x86-64-pic-2.ll: Fixed testcase to reflect call qualifier
* live-out-reg-info.ll: Fixed testcase to reflect test qualifier
* tail-opts.ll: Fixed testcase to reflect call qualifiers
* x86-64-pic-10.ll: Fixed testcase to reflect call qualifier
* bss-pagealigned.ll: Fixed testcase to reflect call qualifier
* x86-64-pic-1.ll: Fixed testcase to reflect call qualifier
* widen_load-1.ll: Fixed testcase to reflect call qualifier
llvm-svn: 91638
2009-12-18 00:01:26 +00:00
250b119d98
Allow instcombine to combine "sext(a) >u const" to "a >u trunc(const)".
...
llvm-svn: 91631
2009-12-17 22:42:29 +00:00
7cc86b4cc6
Make the ptrtoint comparison simplification work if one side is a global.
...
llvm-svn: 91624
2009-12-17 21:27:47 +00:00
5842c9968a
Slightly generalize transformation of memmove(a,a,n) so that it also applies
...
to memcpy. (Such a memcpy is technically illegal, but in practice is safe
and is generated by struct self-assignment in C code.)
llvm-svn: 91621
2009-12-17 21:07:31 +00:00
f3927b7994
Re-revert 91459. It's breaking the x86_64 darwin bootstrap.
...
llvm-svn: 91607
2009-12-17 18:34:24 +00:00
1fe2678a06
Add a 'set_option' action for use in OptionPreprocessor.
...
llvm-svn: 91594
2009-12-17 07:49:16 +00:00
e67cae33e1
Aggressively flip compare constant expressions where appropriate; constant
...
folding in particular expects null to be on the RHS.
llvm-svn: 91587
2009-12-17 06:07:04 +00:00
aadf060b92
Revert this dag combine change:
...
Fold (zext (and x, cst)) -> (and (zext x), cst)
DAG combiner likes to optimize expression in the other way so this would end up cause an infinite looping.
llvm-svn: 91574
2009-12-17 00:40:05 +00:00
ab42d42390
Reapply r91459, it was only unmasking the bug, and since TOT is still broken having it reverted does no good.
...
llvm-svn: 91559
2009-12-16 20:09:53 +00:00
133efc317e
Revert "Reapply 91184 with fixes and an addition to the testcase to cover the
...
problem", this broke llvm-gcc bootstrap for release builds on
x86_64-apple-darwin10.
This reverts commit db22309800b224a9f5f51baf76071d7a93ce59c9.
llvm-svn: 91534
2009-12-16 10:56:17 +00:00
f278addbdc
reapply my strstr optimization. I have reproduced the x86-64 bootstrap
...
miscompile (i386.o miscompares) but it happens both with and without
this patch.
llvm-svn: 91532
2009-12-16 09:32:05 +00:00
23fbd54cfe
Make this test pass on Linux.
...
llvm-svn: 91521
2009-12-16 07:35:25 +00:00
c69d9607f8
XFAIL on ppc-darwin.
...
llvm-svn: 91495
2009-12-16 02:11:38 +00:00
1be6286028
Re-enable 91381 with fixes.
...
llvm-svn: 91489
2009-12-16 00:53:11 +00:00
177be32334
revert my strstr optimization, I'm told it breaks x86-64 bootstrap.
...
Will reapply with a fix when I get a chance.
llvm-svn: 91486
2009-12-16 00:46:02 +00:00
56f041406d
Do better with physical reg operands (typically, from inline asm)
...
in local register allocator. If a reg-reg copy has a phys reg
input and a virt reg output, and this is the last use of the phys
reg, assign the phys reg to the virt reg. If a reg-reg copy has
a phys reg output and we need to reload its spilled input, reload
it directly into the phys reg than passing it through another reg.
Following 76208, there is sometimes no dependency between the def of
a phys reg and its use; this creates a window where that phys reg
can be used for spilling (this is true in linear scan also). This
is bad and needs to be fixed a better way, although 76208 works too
well in practice to be reverted. However, there should normally be
no spilling within inline asm blocks. The patch here goes a long way
towards making this actually be true.
llvm-svn: 91485
2009-12-16 00:29:41 +00:00
e44756d7c2
Reapply 91184 with fixes and an addition to the testcase to cover the problem
...
found last time. Instead of trying to modify the IR while iterating over it,
I've change it to keep a list of WeakVH references to dead instructions, and
then delete those instructions later. I also added some special case code to
detect and handle the situation when both operands of a memcpy intrinsic are
referencing the same alloca.
llvm-svn: 91459
2009-12-15 22:00:51 +00:00
26ab363361
optimize strstr, PR5783
...
llvm-svn: 91438
2009-12-15 19:14:40 +00:00
66a664870b
Convert llvmc tests to FileCheck.
...
llvm-svn: 91420
2009-12-15 07:21:14 +00:00
62b65ecf18
Support hook invocation from 'append_cmd'.
...
llvm-svn: 91419
2009-12-15 07:20:50 +00:00
792f0913ee
For fastcc on x86, let ECX be used as a return register after EAX and EDX
...
llvm-svn: 91410
2009-12-15 03:27:52 +00:00
fcb5453dc7
Disable 91381 for now. It's miscompiling ARMISelDAG2DAG.cpp.
...
llvm-svn: 91405
2009-12-15 03:07:11 +00:00
096fc103fb
Validate the generated C++ code in llvmc tests.
...
Checks that the code generated by 'tblgen --emit-llvmc' can be actually
compiled. Also fixes two bugs found in this way:
- forward_transformed_value didn't work with non-list arguments
- cl::ZeroOrOne is now called cl::Optional
llvm-svn: 91404
2009-12-15 03:04:52 +00:00
cb0721e363
Pipe 'grep' output to 'count'.
...
llvm-svn: 91403
2009-12-15 03:04:14 +00:00
2cb65bd5ab
Allow $CALL(Hook, '$INFILE') for non-join tools.
...
llvm-svn: 91402
2009-12-15 03:04:02 +00:00
852c486946
Make 91378 more conservative.
...
1. Only perform (zext (shl (zext x), y)) -> (shl (zext x), y) when y is a constant. This makes sure it remove at least one zest.
2. If the shift is a left shift, make sure the original shift cannot shift out bits.
llvm-svn: 91399
2009-12-15 03:00:32 +00:00
0e8b9e32d1
Use sbb x, x to materialize carry bit in a GPR. The result is all one's or all zero's.
...
llvm-svn: 91381
2009-12-15 00:53:42 +00:00
d1521ef40c
Fold (zext (and x, cst)) -> (and (zext x), cst).
...
llvm-svn: 91380
2009-12-15 00:52:11 +00:00
ca7c690d3b
Propagate zest through logical shift.
...
llvm-svn: 91378
2009-12-15 00:41:36 +00:00
cecad35728
Fix integer cast code to handle vector types.
...
llvm-svn: 91362
2009-12-14 23:40:38 +00:00
1dba6ea72f
Add radar fixed in comment.
...
llvm-svn: 91312
2009-12-14 19:07:25 +00:00
0c20054cc4
Remove empty file completely
...
llvm-svn: 91277
2009-12-14 14:15:15 +00:00
aaa6ac10a6
revert r91184, because it causes a crash on a .bc file I just
...
sent to Bob.
llvm-svn: 91268
2009-12-14 05:11:02 +00:00
897889ef6b
Add a test for the 'init' option property.
...
llvm-svn: 91259
2009-12-14 04:06:38 +00:00
26fdd7265b
Disable r91104 for x86. It causes partial register stall which pessimize code in 32-bit.
...
llvm-svn: 91223
2009-12-12 20:03:14 +00:00
401e6093c9
Fix some CHECK lines which were ignored by accident.
...
llvm-svn: 91214
2009-12-12 09:25:50 +00:00
895f364ae6
Revise scalar replacement to be more flexible about handle bitcasts and GEPs.
...
While scanning through the uses of an alloca, keep track of the current offset
relative to the start of the alloca, and check memory references to see if
the offset & size correspond to a component within the alloca. This has the
nice benefit of unifying much of the code from isSafeUseOfAllocation,
isSafeElementUse, and isSafeUseOfBitCastedAllocation. The code to rewrite
the uses of a promoted alloca, after it is determined to be safe, is
reorganized in the same way.
Also, when rewriting GEP instructions, mark them as "in-bounds" since all the
indices are known to be safe.
llvm-svn: 91184
2009-12-11 23:47:40 +00:00
e27e028cdd
Lower setcc branchless, if this is profitable.
...
Based on the patch by Brian Lucas!
llvm-svn: 91175
2009-12-11 23:01:29 +00:00
1d459e4937
Implement vector widening, splitting, and scalarizing for SIGN_EXTEND_INREG.
...
llvm-svn: 91158
2009-12-11 21:31:27 +00:00
bffa061e02
Change this to the correct PR number.
...
llvm-svn: 91148
2009-12-11 20:09:21 +00:00
84ba039cf2
Make getUniqueExitBlocks's precondition assert more precise, to
...
avoid spurious failures. This fixes PR5758.
llvm-svn: 91147
2009-12-11 20:05:23 +00:00
6d306bb32b
Fix the result type of SELECT nodes lowered from Select instructions with
...
aggregate return values. This fixes PR5754.
llvm-svn: 91145
2009-12-11 19:50:50 +00:00
fc51282cbe
Honour setHasCalls() set from isel.
...
This is used in some weird cases like general dynamic TLS model.
This fixes PR5723
llvm-svn: 91144
2009-12-11 19:39:55 +00:00
ff2ac71b25
Tests for 91103 and 91104.
...
llvm-svn: 91105
2009-12-11 06:02:21 +00:00
4b91e0194b
Add a test for the fix in revision 91009.
...
llvm-svn: 91062
2009-12-10 21:11:40 +00:00
4986588ddb
It's not safe to coalesce a move where src and dst registers have different subregister indices. e.g.:
...
%reg16404:1<def> = MOV8rr %reg16412:2<kill>
llvm-svn: 91061
2009-12-10 20:59:45 +00:00
9ccc879006
Fix PR5744, a case where we were getting the pointer size instead of the
...
value size. This only manifested when memdep inprecisely returns clobber,
which is do to a caching issue in the PR5744 testcase. We can 'efficiently
emulate' this by using '-no-aa'
llvm-svn: 91004
2009-12-10 00:11:45 +00:00
2262909b20
Fix test.
...
llvm-svn: 90988
2009-12-09 22:24:42 +00:00
493b882f80
Optimize splat of a scalar load into a shuffle of a vector load when it's legal. e.g.
...
vector_shuffle (scalar_to_vector (i32 load (ptr + 4))), undef, <0, 0, 0, 0>
=>
vector_shuffle (v4i32 load ptr), undef, <1, 1, 1, 1>
iff ptr is 16-byte aligned (or can be made into 16-byte aligned).
llvm-svn: 90984
2009-12-09 21:00:30 +00:00
ca5f9cb18b
fix hte last remaining known (by me) phi translation bug. When we reanalyze
...
clobbers to forward pieces of large stores to small loads, we need to consider
the properly phi translated pointer in the store block.
llvm-svn: 90978
2009-12-09 18:21:46 +00:00
9f9010ef47
Add a minor optimization: if we haven't changed the operands of an
...
add, there is no need to scan the world to find the same add again.
This invalidates the previous testcase, which wasn't wonderful anyway,
because it needed a run of instcombine to permute the use-lists in
just the right way to before GVN was run (so it was really fragile).
Not a big loss.
llvm-svn: 90973
2009-12-09 17:27:45 +00:00
fa2e536831
fix PR5733, a case where we'd replace an add with a lexically identical
...
binary operator that wasn't an add. In this case, a xor. Whoops.
llvm-svn: 90971
2009-12-09 17:18:49 +00:00
8f77035568
merge crash-2.ll into crash.ll
...
llvm-svn: 90969
2009-12-09 17:17:26 +00:00
10398e74ae
the code in GVN that tries to forward large loads to small
...
stores is not phi translating, thus it miscompiles really
crazy testcases. This is from inspection, I haven't seen
this in the wild.
llvm-svn: 90930
2009-12-09 02:43:05 +00:00
972e6d8d00
Switch GVN and memdep to use PHITransAddr, which correctly handles
...
phi translation of complex expressions like &A[i+1]. This has the
following benefits:
1. The phi translation logic is all contained in its own class with
a strong interface and verification that it is self consistent.
2. The logic is more correct than before. Previously, if intermediate
expressions got PHI translated, we'd miss the update and scan for
the wrong pointers in predecessor blocks. @phi_trans2 is a testcase
for this.
3. We have a lot less code in memdep.
We can handle phi translation across blocks of things like @phi_trans3,
which is pretty insane :).
This patch should fix the miscompiles of 255.vortex, and I tested it
with a bootstrap of llvm-gcc, llvm-test and dejagnu of course.
llvm-svn: 90926
2009-12-09 01:59:31 +00:00
d938faff4b
Teach InferPtrAlignment to infer GV+cst alignment and use it to simplify x86 isl lowering code.
...
llvm-svn: 90925
2009-12-09 01:53:58 +00:00
e52b1fa128
Remove tests that are not suitable anymore. Plus they are not testing the original bugfixes anymore. These tests were inserted to check bug fixes in code that handled debug info intrinsics. These intrinsics are no longer used and now llvm parser simply ignores old .dbg intrinsics from these dead tests.
...
llvm-svn: 90923
2009-12-09 01:46:00 +00:00
512001ac7d
Revert 90858 90875 and 90805 for now.
...
llvm-svn: 90898
2009-12-08 23:21:45 +00:00
0c2544fd6b
- Support inline asm 'w' constraint for 128-bit vector types.
...
- Also support the 'q' NEON registers asm code.
llvm-svn: 90894
2009-12-08 23:06:22 +00:00
0f620b81c1
CMake/lit: Add llvm_{unit_,}site_config parameters, and always pass them when running tests from the project files.
...
llvm-svn: 90869
2009-12-08 19:47:36 +00:00
7d723ec70d
Do not try to push dead variable's debug info into namespace info.
...
llvm-svn: 90857
2009-12-08 15:01:35 +00:00
6a3df7b0c7
Teach GlobalOpt to delete aliases with internal linkage (after
...
forwarding any uses). GlobalDCE can also do this, but is only
run at -O3.
llvm-svn: 90850
2009-12-08 10:10:20 +00:00
dd2b2f8cba
Reduce (cmp 0, and_su (foo, bar)) into (bit foo, bar). This saves extra instruction. Patch inspired by Brian Lucas!
...
llvm-svn: 90819
2009-12-08 01:03:04 +00:00
8d61ec3002
Test case for 90787.
...
llvm-svn: 90791
2009-12-07 19:42:22 +00:00
76a7edc36d
Use FileCheck and set nounwind on calls.
...
llvm-svn: 90790
2009-12-07 19:40:26 +00:00
9528ccdd77
Don't enable the post-RA scheduler on x86 except at -O3. In its
...
current form, it is too expensive in compile time.
llvm-svn: 90781
2009-12-07 19:04:31 +00:00
6b6be99632
Implement 'forward_value' and 'forward_transformed_value'.
...
llvm-svn: 90770
2009-12-07 17:03:05 +00:00
75dfed4fa5
Dynamic stack realignment use of sp register as source/dest register
...
in "bic sp, sp, #15" leads to unpredicatble behaviour in Thumb2 mode.
Emit the following code instead:
mov r4, sp
bic r4, r4, #15
mov sp, r4
llvm-svn: 90724
2009-12-06 22:39:50 +00:00
6d6f10fe91
fix PR5698
...
llvm-svn: 90708
2009-12-06 17:17:23 +00:00
778cb92235
constant fold loads from memcpy's from global constants. This is important
...
because clang lowers nontrivial automatic struct/array inits to memcpy from
a global array.
llvm-svn: 90698
2009-12-06 05:29:56 +00:00
93236ba327
add support for forwarding mem intrinsic values to non-local loads.
...
llvm-svn: 90697
2009-12-06 04:54:31 +00:00
850a3cd905
gvn is optimizing this better now.
...
llvm-svn: 90696
2009-12-06 04:16:05 +00:00
42376066eb
Handle forwarding local memsets to loads. For example, we optimize this:
...
short x(short *A) {
memset(A, 1, sizeof(*A)*100);
return A[42];
}
to 'return 257' instead of doing the load.
llvm-svn: 90695
2009-12-06 01:57:02 +00:00
eb5bb1bf78
merge two tests.
...
llvm-svn: 90691
2009-12-06 01:47:24 +00:00
f89986235d
Temporarily revert r90502. It was causing the llvm-gcc bootstrap on PPC to fail.
...
llvm-svn: 90653
2009-12-05 07:30:23 +00:00
a0e9d700dc
Generalize this optimization to work on equality comparisons between any two
...
integers that are constant except for a single bit (the same n-th bit in each).
llvm-svn: 90646
2009-12-05 05:00:00 +00:00
abc77742c8
Fix this code to use DIScope instead of DICompileUnit, as in r90181.
...
Don't print "SrcLine"; just print the filename and line number, which
is obvious enough and more informative.
llvm-svn: 90631
2009-12-05 00:23:29 +00:00
6aea8dccf1
Remove now-redundant llvm-as invocations.
...
llvm-svn: 90626
2009-12-05 00:02:37 +00:00
f85dc3f0f1
Add testcase for PR4262.
...
llvm-svn: 90623
2009-12-04 23:29:57 +00:00
74356efae9
Temporarily revert r72620 because r72619 was reverted.
...
llvm-svn: 90619
2009-12-04 23:16:56 +00:00
1ddfd9f96c
Fix PR5551 by not ignoring the top level constantexpr when
...
folding a load from constant.
llvm-svn: 90545
2009-12-04 06:29:29 +00:00
1c21aaca06
Small and carefully crafted testcase showing a miscompilation by GVN
...
that I'm working on. This is manifesting as a miscompile of 255.vortex
on some targets. No check lines yet because it fails.
llvm-svn: 90520
2009-12-04 02:12:12 +00:00
ca9cf65455
Also attempt trivial coalescing for live intervals that end in a copy.
...
The coalescer is supposed to clean these up, but when setting up parameters
for a function call, there may be copies to physregs. If the defining
instruction has been LICM'ed far away, the coalescer won't touch it.
The register allocation hint does not always work - when the register
allocator is backtracking, it clears the hints.
This patch takes care of a few more cases that r90163 missed.
llvm-svn: 90502
2009-12-04 00:16:04 +00:00
9655f84662
Don't pull vector sext through both hands of a logical operation, since doing so prevents the fusion of vector sext and setcc into vsetcc.
...
Add a testcase for the above transformation.
Fix a bogus use of APInt noticed while tracking this down.
llvm-svn: 90423
2009-12-03 07:11:29 +00:00
0bbd3077ce
Recognize canonical forms of vector shuffles where the same vector is used for
...
both source operands. In the canonical form, the 2nd operand is changed to an
undef and the shuffle mask is adjusted to only reference elements from the 1st
operand. Radar 7434842.
llvm-svn: 90417
2009-12-03 06:40:55 +00:00
0b6e260066
Fix this crasher, and add a FIXME for a missed optimization.
...
llvm-svn: 90408
2009-12-03 03:43:29 +00:00
65812b58f2
add a failing testcase.
...
llvm-svn: 90380
2009-12-03 01:46:18 +00:00
77c36d68f3
fix PR5673 by being more careful about pointers to functions.
...
llvm-svn: 90369
2009-12-03 01:05:45 +00:00
76bf386af0
Remove unnecessary check.
...
llvm-svn: 90352
2009-12-02 22:02:20 +00:00
b9878ee6b6
Cleanup/remove some parts of the lifetime region handling code in memdep and GVN,
...
per Chris' comments. Adjust testcases to match.
llvm-svn: 90304
2009-12-02 07:35:19 +00:00
4ca1981e82
merge sext-2 into sext.ll
...
llvm-svn: 90293
2009-12-02 05:34:35 +00:00
0a12a8f9fe
rename test
...
llvm-svn: 90292
2009-12-02 05:32:33 +00:00
fe206d2a13
filecheckize
...
llvm-svn: 90291
2009-12-02 05:32:16 +00:00
bb3eac9e7a
Fixed an assertion failure for tracking sext of a vector of integers
...
llvm-svn: 90290
2009-12-02 04:59:58 +00:00
732351f732
Fix PR5391: support early clobber physical register def tied with a use (ewwww)
...
- A valno should be set HasRedefByEC if there is an early clobber def in the middle of its live ranges. It should not be set if the def of the valno is defined by an early clobber.
- If a physical register def is tied to an use and it's an early clobber, it just means the HasRedefByEC is set since it's still one continuous live range.
- Add a couple of missing checks for HasRedefByEC in the coalescer. In general, it should not coalesce a vr with a physical register if the physical register has a early clobber def somewhere. This is overly conservative but that's the price for using such a nasty inline asm "feature".
llvm-svn: 90269
2009-12-01 22:25:00 +00:00
8a8ba87ac8
test case for IV-Users simplification loop improvement
...
llvm-svn: 90260
2009-12-01 21:53:51 +00:00
0a2c0bcb14
Clear function specific containers while processing end of a function, even if DW_TAG_subprogram for current function is not found.
...
llvm-svn: 90247
2009-12-01 18:13:48 +00:00
367b5eafb7
minimize this a bit more.
...
llvm-svn: 90216
2009-12-01 07:30:01 +00:00
fd75b90d81
merge 2009-11-29-ReverseMap.ll into crash.ll
...
llvm-svn: 90212
2009-12-01 06:22:10 +00:00
3c9aca9079
fix PR5640 by tracking whether a block is the header of a loop more
...
precisely, which prevents us from infinitely peeling the loop.
llvm-svn: 90211
2009-12-01 06:04:43 +00:00
26667abbd3
Use CFG connectedness as a secondary sort key when deciding the order of copy coalescing.
...
This means that well connected blocks are copy coalesced before the less connected blocks. Connected blocks are more difficult to
coalesce because intervals are more complicated, so handling them first gives a greater chance of success.
llvm-svn: 90194
2009-12-01 03:03:00 +00:00
03f90ab0a9
Add a comment about A[i+(j+1)].
...
llvm-svn: 90185
2009-12-01 01:38:10 +00:00
1d31fc9123
Fix PR5614: parts of a physical register def may be killed the rest.
...
llvm-svn: 90180
2009-12-01 00:44:45 +00:00
3daa96b079
Test case for r90175.
...
llvm-svn: 90176
2009-12-01 00:13:06 +00:00
020d8d4c63
New virtual registers created for spill intervals should inherit allocation hints from the original register.
...
This helps us avoid silly copies when rematting values that are copied to a physical register:
leaq _.str44(%rip), %rcx
movq %rcx, %rsi
call _strcmp
becomes:
leaq _.str44(%rip), %rsi
call _strcmp
The coalescer will not touch the movq because that would tie down the physical register.
llvm-svn: 90163
2009-11-30 22:55:54 +00:00
120037fec7
Debug info is disabled on PPC Darwin.
...
llvm-svn: 90160
2009-11-30 22:23:29 +00:00
8a29dd4c7f
Add a testcase for the current llvm-gcc build failure.
...
llvm-svn: 90112
2009-11-30 07:02:18 +00:00
031cb00246
Add test case for r90108
...
llvm-svn: 90109
2009-11-30 02:42:27 +00:00
fef0c67d01
Fix this test on 64-bit systems which seem to use i64 for gep indices sometimes
...
while 32-bit gcc uses i32.
llvm-svn: 90106
2009-11-30 02:23:57 +00:00
95ef6c9560
Commit r90099 made LLVM simplify one of these constant expressions a little
...
more. Update the syntax we're checking for and filecheckize it too.
This will fix the selfhost buildbots but will 'break' the others (sigh) because
they're still linked against older LLVM which is emitting less optimized IR.
llvm-svn: 90104
2009-11-30 00:38:56 +00:00
e35e6f097d
Teach ConstantFolding to do a better job when folding gep(bitcast).
...
This permits the devirtualization of llvm.org/PR3100#c9 when compiled by clang.
llvm-svn: 90099
2009-11-29 21:40:55 +00:00
1cc4cca193
add testcases for the foo_with_overflow op xforms added recently and
...
fix bugs exposed by the tests. Testcases from Alastair Lynn!
llvm-svn: 90056
2009-11-29 02:57:29 +00:00
0d39613f65
add PR#
...
llvm-svn: 90049
2009-11-29 01:28:58 +00:00
73d45454be
Add a testcase for:
...
void test(int N, double* G) {
long j;
for (j = 1; j < N - 1; j++)
G[j] = G[j] + G[j+1] + G[j-1];
}
which we now compile to one load in the loop:
LBB1_2: ## %bb
movsd 16(%rsi,%rax,8), %xmm2
incq %rdx
addsd %xmm2, %xmm1
addsd %xmm1, %xmm0
movapd %xmm2, %xmm1
movsd %xmm0, 8(%rsi,%rax,8)
incq %rax
cmpq %rcx, %rax
jne LBB1_2
instead of:
LBB1_2: ## %bb
movsd 8(%rsi,%rax,8), %xmm0
addsd 16(%rsi,%rax,8), %xmm0
addsd (%rsi,%rax,8), %xmm0
movsd %xmm0, 8(%rsi,%rax,8)
incq %rax
cmpq %rcx, %rax
jne LBB1_2
llvm-svn: 90048
2009-11-29 01:15:43 +00:00
a73adac52e
add a testcase for
...
void test9(int N, double* G) {
long j;
for (j = 1; j < N - 1; j++)
G[j+1] = G[j] + G[j+1];
}
llvm-svn: 90047
2009-11-29 01:04:40 +00:00
cd261c9c26
Implement PR5634.
...
llvm-svn: 90046
2009-11-29 00:51:17 +00:00
218a3393f4
Teach memdep to look for memory use intrinsics during dependency queries. Fixes
...
PR5574.
llvm-svn: 90045
2009-11-28 21:27:49 +00:00
32140312ca
reenable load address insertion in load pre. This allows us to
...
handle cases like this:
void test(int N, double* G) {
long j;
for (j = 1; j < N - 1; j++)
G[j+1] = G[j] + G[j+1];
}
where G[1] isn't live into the loop.
llvm-svn: 90041
2009-11-28 16:08:18 +00:00
c7bc66dfc6
implement a FIXME: limit the depth that DecomposeGEPExpression goes the same
...
way that getUnderlyingObject does it.
This fixes the 'DecomposeGEPExpression and getUnderlyingObject disagree!'
assertion on sqlite3.
llvm-svn: 90038
2009-11-28 15:12:41 +00:00
cf0b198827
disable value insertion for now, I need to figure out how
...
to inform GVN about the newly inserted values. This fixes
PR5631.
llvm-svn: 90022
2009-11-27 22:50:07 +00:00
d141f885a1
I accidentally implemented this :)
...
llvm-svn: 90014
2009-11-27 19:56:00 +00:00
2f0354ecf0
add support for recursive phi translation and phi
...
translation of add with immediate. This allows us
to optimize this function:
void test(int N, double* G) {
long j;
G[1] = 1;
for (j = 1; j < N - 1; j++)
G[j+1] = G[j] + G[j+1];
}
to only do one load every iteration of the loop.
llvm-svn: 90013
2009-11-27 19:11:31 +00:00
e66f84e012
add two simple test cases we now optimize (to one load in the loop each) and one we don't (corresponding to the fixme I added yesterday).
...
llvm-svn: 90012
2009-11-27 18:08:30 +00:00
2226db66ab
fix PR5436 by making the 'simple' case of SRoA not promote out of range
...
array indexes. The "complex" case of SRoA still handles them, and correctly.
This fixes a weirdness where we'd correctly avoid transforming A[0][42] if
the 42 was too large, but we'd only do it if it was one gep, not two separate
ones.
llvm-svn: 90007
2009-11-27 16:37:41 +00:00
92ba18e9e4
filecheckize
...
llvm-svn: 90006
2009-11-27 16:31:59 +00:00
b56334b4f2
While this test is testing a problem in the generic part of codegen,
...
the problem only shows for msp430 and pic16 which is why it specifies
them using -march. But it is wrong to put such tests in CodeGen/Generic,
since not everyone builds these targets. Put a copy of the test in each
of the target test directories.
llvm-svn: 90005
2009-11-27 16:04:14 +00:00
25be93dfed
teach GVN's load PRE to insert computations of the address in predecessors
...
where it is not available. It's unclear how to get this inserted
computation into GVN's scalar availability sets, Owen, help? :)
llvm-svn: 89997
2009-11-27 08:25:10 +00:00
41a5bba4e0
add some tests for memdep phi translation + PRE.
...
llvm-svn: 89996
2009-11-27 06:42:42 +00:00
fa76d23c1d
this test is failing, and is expected to.
...
llvm-svn: 89995
2009-11-27 06:36:28 +00:00
4f1552bde7
filecheckize
...
llvm-svn: 89994
2009-11-27 06:33:09 +00:00
66426c70e6
rename test.
...
llvm-svn: 89993
2009-11-27 06:31:55 +00:00
a9a76ccf56
Fix phi translation in load PRE to agree with the phi
...
translation done by memdep, and reenable gep translation
again.
llvm-svn: 89992
2009-11-27 06:31:14 +00:00
b018bda665
redisable this, my bootstrap worked because it wasn't an optimized build, whoops.
...
llvm-svn: 89991
2009-11-27 05:53:01 +00:00
fb8a718fc3
try again.
...
llvm-svn: 89990
2009-11-27 05:19:56 +00:00
14444f5c1a
this is causing buildbot failures, disable for now.
...
llvm-svn: 89985
2009-11-27 01:52:22 +00:00
5030c6ab21
teach phi translation of GEPs to simplify geps like 'gep x, 0'.
...
This allows us to compile the example from PR5313 into:
LBB1_2: ## %bb
incl %ecx
movb %al, (%rsi)
movslq %ecx, %rax
movb (%rdi,%rax), %al
testb %al, %al
jne LBB1_2
instead of:
LBB1_2: ## %bb
movslq %eax, %rcx
incl %eax
movb (%rdi,%rcx), %cl
movb %cl, (%rsi)
movslq %eax, %rcx
cmpb $0, (%rdi,%rcx)
jne LBB1_2
llvm-svn: 89981
2009-11-27 00:34:38 +00:00
4c88e814b8
teach memdep to do trivial PHI translation of GEPs. More to
...
come.
llvm-svn: 89979
2009-11-27 00:07:37 +00:00
9bd2136ca3
Teach memdep to phi translate bitcasts. This allows us to compile
...
the example in GCC PR16799 to:
LBB1_2: ## %bb1
movl %eax, %eax
subq %rax, %rdi
movq %rdi, (%rcx)
movl (%rdi), %eax
testl %eax, %eax
je LBB1_2
instead of:
LBB1_2: ## %bb1
movl (%rdi), %ecx
subq %rcx, %rdi
movq %rdi, (%rax)
cmpl $0, (%rdi)
je LBB1_2
llvm-svn: 89978
2009-11-26 23:41:07 +00:00
dfaa592de1
convert to filecheck
...
llvm-svn: 89977
2009-11-26 23:32:59 +00:00
a73ecf0b00
Fix PR5471 by removing an instcombine xform. Some pieces of the code
...
generates store to undef and some generates store to null as the idiom
for undefined behavior. Since simplifycfg zaps both, don't remove the
undefined behavior in instcombine.
llvm-svn: 89971
2009-11-26 22:04:42 +00:00
5fe97e7aca
@test9 is a testcase for r89958. Before 89958, we misanalyzed the
...
first expression as P+4+4*i which we considered to possibly alias
P+4*j. Now we correctly analyze the former one as P+1+4*i.
@test10 is a sanity test that verfies that we know that P+4+4*i != P+4*i.
llvm-svn: 89960
2009-11-26 19:25:46 +00:00
1bf7ff704a
Implement PR1143 (at -m64) by making basicaa look through extensions. We
...
previously already handled it at -m32 because there were no i32->i64
extensions for addressing.
llvm-svn: 89959
2009-11-26 18:53:33 +00:00
631c5b2cb9
teach GetLinearExpression to be a bit more aggressive.
...
llvm-svn: 89955
2009-11-26 17:00:01 +00:00
ba0014a44c
update status of this. basicaa is much improved now,
...
only missing the one form (in this testcase). Dan, do you
consider this example to be important?
llvm-svn: 89953
2009-11-26 16:42:00 +00:00
29bc8a91d3
Teach basicaa that x|c == x+c when the c bits of x are clear. This
...
allows us to compile the example in readme.txt into:
LBB1_1: ## %bb
movl 4(%rdx,%rax), %ecx
movl %ecx, %esi
imull (%rdx,%rax), %esi
imull %esi, %ecx
movl %esi, 8(%rdx,%rax)
imull %ecx, %esi
movl %ecx, 12(%rdx,%rax)
movl %esi, 16(%rdx,%rax)
imull %ecx, %esi
movl %esi, 20(%rdx,%rax)
addq $16, %rax
cmpq $4000, %rax
jne LBB1_1
instead of:
LBB1_1:
movl (%rdx,%rax), %ecx
imull 4(%rdx,%rax), %ecx
movl %ecx, 8(%rdx,%rax)
imull 4(%rdx,%rax), %ecx
movl %ecx, 12(%rdx,%rax)
imull 8(%rdx,%rax), %ecx
movl %ecx, 16(%rdx,%rax)
imull 12(%rdx,%rax), %ecx
movl %ecx, 20(%rdx,%rax)
addq $16, %rax
cmpq $4000, %rax
jne LBB1_1
GCC (4.2) doesn't seem to be able to eliminate the loads in this
testcase either, it generates:
L2:
movl (%rdx), %eax
imull 4(%rdx), %eax
movl %eax, 8(%rdx)
imull 4(%rdx), %eax
movl %eax, 12(%rdx)
imull 8(%rdx), %eax
movl %eax, 16(%rdx)
imull 12(%rdx), %eax
movl %eax, 20(%rdx)
addl $4, %ecx
addq $16, %rdx
cmpl $1002, %ecx
jne L2
llvm-svn: 89952
2009-11-26 16:26:43 +00:00
12dacdd359
teach basicaa that A[i] != A[i+1].
...
llvm-svn: 89951
2009-11-26 16:18:10 +00:00
453751031a
rename test
...
llvm-svn: 89950
2009-11-26 16:08:41 +00:00
7a5b56aca9
Change the other half of aliasGEP (which handles GEP differencing) to use DecomposeGEPExpression. This dramatically simplifies and shrinks the code by eliminating the horrible CheckGEPInstructions method, fixes a miscompilation ( @test3 ) and makes the code more aggressive. In particular, we now handle the @test4 case, which is reduced from the SmallPtrSet constructor. Missing this caused us to emit a variable length memset instead of a fixed size one.
...
llvm-svn: 89922
2009-11-26 02:17:34 +00:00
0d23076adf
add a new random feature test
...
llvm-svn: 89921
2009-11-26 02:16:28 +00:00
a4c986cbdd
Test for 89905.
...
llvm-svn: 89906
2009-11-26 00:35:01 +00:00
979ac9fce4
Test for llvm-gcc checkin 89898.
...
llvm-svn: 89899
2009-11-25 23:50:09 +00:00
44df27e964
ProcessImplicitDefs should watch out for invalidated iterator and extra implicit operands on copies.
...
llvm-svn: 89880
2009-11-25 21:13:39 +00:00
2db07581b7
Support PIC loading of constant pool entries
...
llvm-svn: 89863
2009-11-25 12:17:58 +00:00
2b8fed15e0
Reverting patch in revision 89758, initial attempt at fixing PR5373 has proven to be bogus.
...
llvm-svn: 89844
2009-11-25 05:38:41 +00:00
5ece8f0a20
Do not store R31 into the caller's link area on PPC.
...
This violates the ABI (that area is "reserved"), and
while it is safe if all code is generated with current
compilers, there is some very old code around that uses
that slot for something else, and breaks if it is stored
into. Adjust testcases looking for current behavior.
I've verified that the stack frame size is right in all
testcases, whether it changed or not. 7311323.
llvm-svn: 89811
2009-11-24 22:59:02 +00:00
5fd452d596
Fix for PR5373, Credit to Jakub Staszak.
...
llvm-svn: 89758
2009-11-24 11:51:52 +00:00
184ec26fcd
Enable predication of NEON instructions in Thumb2 mode.
...
llvm-svn: 89748
2009-11-24 08:06:15 +00:00
2522908653
Materialize global addresses via movt/movw pair, this is always better
...
than doing the same via constpool:
1. Load from constpool costs 3 cycles on A9, movt/movw pair - just 2.
2. Load from constpool might stall up to 300 cycles due to cache miss.
3. Movt/movw does not use load/store unit.
4. Less constpool entries => better compiler performance.
This is only enabled on ELF systems, since darwin does not have needed
relocations (yet).
llvm-svn: 89720
2009-11-24 00:44:37 +00:00
dbb4140f37
move fconst[sd] to UAL. <rdar://7414913>
...
llvm-svn: 89700
2009-11-23 21:08:25 +00:00
50b293d65e
update test for 89694
...
llvm-svn: 89695
2009-11-23 20:39:53 +00:00
580b80d6d9
Make ConstantFoldConstantExpression recursively visit the entire
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ConstantExpr, not just the top-level operator. This allows it to
fold many more constants.
Also, make GlobalOpt call ConstantFoldConstantExpression on
GlobalVariable initializers.
llvm-svn: 89659
2009-11-23 16:22:21 +00:00
1f522d98f8
Fix a use of an invalidated iterator in the case where there are multiple
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adjacent uses of a dead basic block from the same user. This fixes PR5596.
llvm-svn: 89658
2009-11-23 16:13:39 +00:00
922d4ab574
Reapply r88830 with a bugfix: this transform only applies to icmp eq/ne. This
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fixes part of PR5438.
llvm-svn: 89639
2009-11-23 03:17:33 +00:00
db1e9f1290
remove a silly condition that doesn't make a lot of sense anymore.
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llvm-svn: 89601
2009-11-22 16:15:59 +00:00
f161e97a9e
Miss two, PR5307.
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llvm-svn: 89596
2009-11-22 15:35:28 +00:00
cc856372b0
Convert Thumb2 tests to FileCheck for PR5307.
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llvm-svn: 89595
2009-11-22 15:18:27 +00:00
a9268a4525
Turns out stuff gets allocated to different registers depending on the subtarget.
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llvm-svn: 89594
2009-11-22 15:15:52 +00:00
21d7e8aeb1
Convert ARM tests to FileCheck for PR5307.
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llvm-svn: 89593
2009-11-22 14:23:33 +00:00
2e245f4e18
Convert test to FileCheck.
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llvm-svn: 89589
2009-11-22 13:16:36 +00:00
8966897524
Forgot to alter RUN line when converting to FileCheck.
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llvm-svn: 89588
2009-11-22 13:09:48 +00:00
7150767800
Fix for bad FileCheck converts in revision 89584.
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llvm-svn: 89586
2009-11-22 12:50:05 +00:00
15dd46215e
Convert a few tests to FileCheck for PR5307.
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llvm-svn: 89584
2009-11-22 11:45:44 +00:00
67e6cab49f
Fix pr5470. Tablegen handles template arguments by temporarily setting their
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values, resolving references to them, and then removing the definitions.
If a template argument is set to an undefined value, we need to resolve
references to that argument to an explicit undefined value. The current code
leaves the reference to the template argument as it is, which causes an
assertion failure later when the definition of the template argument is
removed.
llvm-svn: 89581
2009-11-22 03:58:57 +00:00
e09e95b35c
Revert 89562. We're being sneakier than I was giving us credit for, and this
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isn't necessary.
llvm-svn: 89568
2009-11-21 23:34:09 +00:00
43fd822249
Darwin requires a frame pointer for all non-leaf functions to support correct
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backtraces.
llvm-svn: 89562
2009-11-21 21:40:08 +00:00
4c83e2c253
Don't leave temporary files in the test directory.
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llvm-svn: 89531
2009-11-21 02:05:31 +00:00
b91eba382d
When generating a vector the really slow way, via loads
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and stores, handle the case where the element size is not
a valid target type correctly (PPC).
llvm-svn: 89521
2009-11-21 00:53:23 +00:00
73f9a9e2c8
Enable hoisting load from constant memories.
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llvm-svn: 89510
2009-11-20 23:31:34 +00:00
c1f532e930
Recommitting PALIGNR shift width fixes.
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Thanks to Daniel Dunbar for fixing clang intrinsics:
http://llvm.org/viewvc/llvm-project?view=rev&revision=89499
llvm-svn: 89500
2009-11-20 22:28:42 +00:00
8495a506eb
Remove an incorrect overaggressive optimization
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(PPC specific).
llvm-svn: 89496
2009-11-20 22:16:40 +00:00
19d92728d0
Reverting PALIGNR fix until I figure out how this
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broke the Clang testsuite.
llvm-svn: 89495
2009-11-20 22:09:28 +00:00
fbed130173
Fixed PALIGNR to take 8-bit rotations in all cases.
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Also fixed the corresponding testcase, and the PALIGNR
intrinsic (tested for correctness with llvm-gcc).
llvm-svn: 89491
2009-11-20 21:40:28 +00:00
fbffe63528
Make Loop::getLoopLatch() work on loops which don't have preheaders, as
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it may be used in contexts where preheader insertion may have failed due
to an indirectbr.
Make LoopSimplify's LoopSimplify::SeparateNestedLoop properly fail in
the case that it would require splitting an indirectbr edge.
These fix PR5502.
llvm-svn: 89484
2009-11-20 20:51:18 +00:00
d15302afa0
Fix IPSCCP's code for deleting dead blocks to tolerate outstanding
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blockaddress users. This fixes PR5569.
llvm-svn: 89483
2009-11-20 20:19:14 +00:00
bdb43a9d99
Remat VLDRD from constpool. Clean up some instruction property specifications.
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llvm-svn: 89478
2009-11-20 19:57:15 +00:00
cc0a0cb4b7
Fix PR5558, which was caused by a wrong fix for PR3393 (see commit 63048),
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which was an expensive checks failure due to a bug in the checking. This
patch in essence reverts the original fix for PR3393, and refixes it by a
tweak to the way expensive checking is done.
llvm-svn: 89454
2009-11-20 10:45:10 +00:00
e986c44a9b
Try to work around grep's "Binary file (standard input) matches" complaints seen
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on ppc buildbot.
llvm-svn: 89452
2009-11-20 09:53:25 +00:00
fa559f46c4
Fix -march= name for x86-64.
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llvm-svn: 89445
2009-11-20 02:52:08 +00:00
20c8ab655e
Fix fast-isel to avoid selecting the return instruction if a
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tail call has been encountered.
llvm-svn: 89444
2009-11-20 02:51:26 +00:00
bbd50b0f78
Also CSE non-pic load from constant pools.
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llvm-svn: 89440
2009-11-20 02:10:27 +00:00
62167b9516
Teach getSmallConstantTripMultiple about Shl operators.
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llvm-svn: 89426
2009-11-20 01:09:34 +00:00
81a2851bcb
Fix codegen of conditional move of immediates. We were not making use of the immediate forms of cmov instructions at all.
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llvm-svn: 89423
2009-11-20 00:54:03 +00:00
c0cc2ae45b
Specify proper arch and triple for 64-bit.
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llvm-svn: 89418
2009-11-20 00:40:21 +00:00
7dc8d2d025
Testcase for r89415.
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llvm-svn: 89417
2009-11-20 00:32:16 +00:00
94e617627d
Extend CaptureTracking to indicate when a value is never stored, even
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if it is not ultimately captured. Teach BasicAliasAnalysis that a
local object address which does not escape and is never stored does
not alias with a value resulting from a load.
llvm-svn: 89398
2009-11-19 21:57:48 +00:00
cbc6ebb6fd
Enable hoisting of loads from constant memory by default. In cases where
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they are lowered to instruction sequences more complex than a simple
load, such that CodeGen cannot rematerialize them, a reload from a
spill slot is likely to be cheaper than the complex sequence.
llvm-svn: 89374
2009-11-19 19:00:10 +00:00
0b2099ad5f
Unbreak test, Bruno please check.
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llvm-svn: 89329
2009-11-19 07:18:49 +00:00
b18525937c
More consistent thumb1 asm printing.
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llvm-svn: 89328
2009-11-19 06:57:41 +00:00
2a6c92fcb6
Shrink ldr / str [sp, imm0-1024] to 16-bit instructions.
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llvm-svn: 89326
2009-11-19 06:32:27 +00:00
4713b282ce
- Add sugregister logic to handle f64=(f32,f32).
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- Support mips1 like load/store of doubles:
Instead of:
sdc $f0, X($3)
Generate:
swc $f0, X($3)
swc $f1, X+4($3)
llvm-svn: 89322
2009-11-19 06:06:13 +00:00
77f0ea6b93
Test from Dhrystone to make sure that we're not emitting an aligned load for a
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string that's aligned at 8-bytes instead of 16-bytes.
llvm-svn: 89295
2009-11-19 01:33:57 +00:00
6456fb94f5
Fix buildbots.
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llvm-svn: 89274
2009-11-18 23:30:38 +00:00
3bd09434a6
Add XCore support for indirectbr / blockaddress.
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llvm-svn: 89273
2009-11-18 23:20:42 +00:00
108aadf972
Tail duplication still needs to iterate. Duplicating new instructions onto
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the tail of a block may make that block a new candidate for duplication.
llvm-svn: 89264
2009-11-18 22:52:37 +00:00
e9e9121f94
Not all ASM has # for comments.
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llvm-svn: 89250
2009-11-18 21:54:13 +00:00
575c3f3d72
Fix PR5300.
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When TwoAddressInstructionPass deletes a dead instruction, make sure that all
register kills are accounted for. The 2-addr register does not get special
treatment.
llvm-svn: 89246
2009-11-18 21:33:35 +00:00
4797e58d6b
Fix inverted test and add testcase from failing self-host.
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llvm-svn: 89167
2009-11-18 00:02:18 +00:00
50ee5e7ddb
Remove fragile test.
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llvm-svn: 89150
2009-11-17 21:52:40 +00:00
cdde77c6a3
Enable arm jumpt table adjustment.
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llvm-svn: 89143
2009-11-17 21:24:11 +00:00
a2873f4d59
Forgot to commit test fixes
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llvm-svn: 89138
2009-11-17 20:38:36 +00:00
fffff88a3c
Enable -split-phi-edges by default, except when -regalloc=local.
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The local register allocator doesn't like it when LiveVariables is run.
We should also disable edge splitting under -O0, but that has to wait a bit.
llvm-svn: 89125
2009-11-17 19:15:50 +00:00
ba4e5da727
Generalize OptimizeLoopTermCond to optimize more loop terminating icmp to use postinc iv.
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llvm-svn: 89116
2009-11-17 18:10:11 +00:00
84efacfaad
Revert 89021. It's miscompiling llvm-gcc driver driver at -O0.
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llvm-svn: 89082
2009-11-17 09:55:52 +00:00
9f0d55d8d8
Enable -split-phi-edges by default
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llvm-svn: 89021
2009-11-17 01:07:22 +00:00
d33400e636
MOV64rm should be marked isReMaterializable.
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llvm-svn: 89019
2009-11-17 00:55:55 +00:00
0ad7efbace
Convert to FileCheck
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llvm-svn: 89007
2009-11-17 00:20:26 +00:00
4781c3caf8
Convert to FileCheck
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llvm-svn: 89002
2009-11-17 00:03:38 +00:00
805d195649
Cleanup. Missed removing these when converting. Oops.
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llvm-svn: 89001
2009-11-17 00:00:33 +00:00
b43e1ff236
Fix this test - there don't appear to be any actual Reload Reuses
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in this testcase.
llvm-svn: 88998
2009-11-16 23:49:55 +00:00
9dede3b383
Revert r87049, which was the workaround for the regression triggered
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by the recent FixedStackPseudoSourceValue-related changes, now that
the specific bug that affected it is fixed, in r88954.
llvm-svn: 88997
2009-11-16 23:43:42 +00:00
0632b53bfe
Revert the test from r88984. It relies on being able to mmap 16GB of
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address space (though it only uses a small fraction of that), and the
buildbots disallow that.
Also add a comment to the Makefile's ulimit line warning future
developers that changing it won't work.
llvm-svn: 88994
2009-11-16 23:32:30 +00:00
1deb0b9f53
Convert to FileCheck
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llvm-svn: 88991
2009-11-16 23:19:29 +00:00
10d3604a9e
Make X86-64 in the Large model always emit 64-bit calls.
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The large code model is documented at
http://www.x86-64.org/documentation/abi.pdf and says that calls should
assume their target doesn't live within the 32-bit pc-relative offset
that fits in the call instruction.
To do this, we turn off the global-address->target-global-address
conversion in X86TargetLowering::LowerCall(). The first attempt at
this broke the lazy JIT because it can separate the movabs(imm->reg)
from the actual call instruction. The lazy JIT receives the address of
the movabs as a relocation and needs to record the return address from
the call; and then when that call happens, it needs to patch the
movabs with the newly-compiled target. We could thread the call
instruction into the relocation and record the movabs<->call mapping
explicitly, but that seems to require at least as much new
complication in the code generator as this change.
To fix this, we make lazy functions _always_ go through a call
stub. You'd think we'd only have to force lazy calls through a stub on
difficult platforms, but that turns out to break indirect calls
through a function pointer. The right fix for that is to distinguish
between calls and address-of operations on uncompiled functions, but
that's complex enough to leave for someone else to do.
Another attempt at this defined a new CALL64i pseudo-instruction,
which expanded to a 2-instruction sequence in the assembly output and
was special-cased in the X86CodeEmitter's emitInstruction()
function. That broke indirect calls in the same way as above.
This patch also removes a hack forcing Darwin to the small code model.
Without far-call-stubs, the small code model requires things of the
JITMemoryManager that the DefaultJITMemoryManager can't provide.
Thanks to echristo for lots of testing!
llvm-svn: 88984
2009-11-16 22:41:33 +00:00
f25ef4ffb0
- Check memoperand alignment instead of checking stack alignment. Most load / store folding instructions are not referencing spill stack slots.
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- Mark MOVUPSrm re-materializable.
llvm-svn: 88974
2009-11-16 21:56:03 +00:00
Chris Lattner