a04542b61e
Optimize setDepthDirty and setHeightDirty a little, as they showed
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up on a profile.
llvm-svn: 61344
2008-12-22 21:11:33 +00:00
a6fbc282b2
Add an assertion to the ScheduleDAGInstrs class to catch SUnits
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reallocations. We don't do cloning on MachineInstr schedule DAGs,
but this is a worthwhile sanity check regardless.
llvm-svn: 61343
2008-12-22 21:08:08 +00:00
fd87a5088e
Add an accesor for the isNormalMemory field in the SDep class.
...
llvm-svn: 61342
2008-12-22 21:06:56 +00:00
7782de7525
Add an assertion to catch SUnits reallocations. And add a doxygen
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comment for the ScheduleDAGSDNodes class.
llvm-svn: 61341
2008-12-22 21:06:20 +00:00
9de060ebd2
Clarify a comment.
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llvm-svn: 61338
2008-12-22 19:44:39 +00:00
2fe093f2b8
Use ignore & grep instead of XFAIL.
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llvm-svn: 61307
2008-12-21 07:47:49 +00:00
10eb8e533f
Turn strcmp into memcmp, such as strcmp(P, "x") --> memcmp(P, "x", 2).
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llvm-svn: 61297
2008-12-21 00:19:21 +00:00
ab316350bf
Fix fast-isel to not emit invalid assembly when presented with a
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constant shift count that doesn't fit in the shift instruction's
immediate field. This fixes PR3242.
llvm-svn: 61281
2008-12-20 17:19:40 +00:00
a12f115972
Reword the comment for ConstantInt's getLimitedValue.
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llvm-svn: 61280
2008-12-20 17:06:39 +00:00
4bc10c9e77
Remove redundant test for vector-nature. Scan the vector first to see whether
...
our optz'n will apply to it, then build the replacement vector only if needed.
llvm-svn: 61279
2008-12-20 16:48:00 +00:00
350d45b87b
LiveInterval::removeKills and isKill don't need 'this' and
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can be static member functions.
llvm-svn: 61278
2008-12-20 16:44:40 +00:00
24fe9a1dc2
Use SmallVector's pop_back_val.
...
llvm-svn: 61277
2008-12-20 16:42:33 +00:00
bb92a1b815
Use the correct Preds and Succs lists in setHeightDirty()
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and setDepthDirty(), respectively. This fixes PR3241.
llvm-svn: 61276
2008-12-20 16:34:57 +00:00
7be667c075
More precise XFAIL.
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llvm-svn: 61265
2008-12-19 22:28:23 +00:00
be2a77f52c
Un-XFAIL this test because it's passing and John doesn't seem interested in un-XFAILing it.
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llvm-svn: 61264
2008-12-19 22:25:01 +00:00
650b1e7ff8
Use ~0u instead of -1u as the special value, to hopefully avoid
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warnings on compilers that warn about such things.
llvm-svn: 61263
2008-12-19 22:23:43 +00:00
0869f78555
Fix PR3149. If an early clobber def is a physical register and it is tied to an input operand, it effectively extends the live range of the physical register. Currently we do not have a good way to represent this.
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172 %ECX<def> = MOV32rr %reg1039<kill>
180 INLINEASM <es:subl $5,$1
sbbl $3,$0>, 10, %EAX<def>, 14, %ECX<earlyclobber,def>, 9, %EAX<kill>,
36, <fi#0>, 1, %reg0, 0, 9, %ECX<kill>, 36, <fi#1>, 1, %reg0, 0
188 %EAX<def> = MOV32rr %EAX<kill>
196 %ECX<def> = MOV32rr %ECX<kill>
204 %ECX<def> = MOV32rr %ECX<kill>
212 %EAX<def> = MOV32rr %EAX<kill>
220 %EAX<def> = MOV32rr %EAX
228 %reg1039<def> = MOV32rr %ECX<kill>
The early clobber operand ties ECX input to the ECX def.
The live interval of ECX is represented as this:
%reg20,inf = [46,47:1)[174,230:0) 0@174-(230) 1@46-(47)
The right way to represent this is something like
%reg20,inf = [46,47:2)[174,182:1)[181:230:0) 0@174-(182) 1@181-230 @2@46-(47)
Of course that won't work since that means overlapping live ranges defined by two val#.
The workaround for now is to add a bit to val# which says the val# is redefined by a early clobber def somewhere. This prevents the move at 228 from being optimized away by SimpleRegisterCoalescing::AdjustCopiesBackFrom.
llvm-svn: 61259
2008-12-19 20:58:01 +00:00
8dd90a7245
The fields for the stoppoint debug intrinsic have not changed, so update the
...
version number assertions.
llvm-svn: 61257
2008-12-19 19:56:36 +00:00
dc2b987abb
This test works again for Darwin because a patch was reverted.
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llvm-svn: 61254
2008-12-19 19:08:13 +00:00
05a868f7af
Add dyn_cast_or_null bindings for some additional classes missed in r61252.
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llvm-svn: 61253
2008-12-19 18:51:17 +00:00
29e3894e7d
C bindings for dyn_cast_or_null.
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This operation can be used to build dyn_cast, isa, and cast.
llvm-svn: 61252
2008-12-19 18:39:45 +00:00
af4c0bf44f
Add support for writing LLVM IR to a specified BitstreamWriter.
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Patch by Lukasz Janyst!
llvm-svn: 61251
2008-12-19 18:37:59 +00:00
b289d4163b
Move the patterns which have i8 immediates before the patterns
...
that have i32 immediates so that they get selected first. This
currently only matters in the JIT, as assemblers will
automatically use the smallest encoding.
llvm-svn: 61250
2008-12-19 18:25:21 +00:00
f1fb65c747
Use dyn_cast intead of isa + cast in the generated DAGISel code. This
...
reduces the amount of code slightly when assertions are enabled.
llvm-svn: 61249
2008-12-19 18:13:39 +00:00
3b3de7c228
- CodeGenPrepare does not split loop back edges but it only knows about back edges of single block loops. It now does a DFS walk to find loop back edges.
...
- Use SplitBlockPredecessors to factor out common predecessors of the critical edge destination. This is disabled for now due to some regressions.
llvm-svn: 61248
2008-12-19 18:03:11 +00:00
9c148c8fc2
Fix some release-assert warnings
...
llvm-svn: 61244
2008-12-19 17:03:38 +00:00
770b4b830a
Fix bug 3202.
...
The EH_frame and .eh symbols are now private, except for darwin9 and earlier.
The patch also fixes the definition of PrivateGlobalPrefix on pcc linux.
llvm-svn: 61242
2008-12-19 10:55:56 +00:00
3cde35175c
Update the .cvs files for nocapture.
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llvm-svn: 61241
2008-12-19 09:41:54 +00:00
8d69f48833
Commit missed files from nocapture change.
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llvm-svn: 61240
2008-12-19 09:38:31 +00:00
2abb108f1b
Resubmit support for the 'nocapture' attribute.
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The problematic part of this patch is that we were out of attribute bits,
requiring some fancy bit hacking to make it fit (by shrinking alignment)
without breaking existing users or the file format.
This change will require users to rebuild llvm-gcc to match llvm.
llvm-svn: 61239
2008-12-19 06:39:12 +00:00
19a54ffc7f
Perform this loop only when the -debug flag is specified.
...
llvm-svn: 61238
2008-12-19 02:09:57 +00:00
8c82a8a984
Initialize the ImplicitDefed member, to avoid getting stale
...
data from a previous block.
llvm-svn: 61237
2008-12-19 00:46:20 +00:00
b4c55bb857
Fix RegScavenger::forward() to work on basic blocks containing exactly
...
one instruction.
llvm-svn: 61236
2008-12-19 00:45:13 +00:00
4293cea3e5
Delete the RegScavenging constructor that takes a MachineBasicBlock
...
argument. Nothing was using it, and it set the MBB member without
calling enterBasicBlock, which was problematic.
llvm-svn: 61234
2008-12-19 00:34:32 +00:00
308a1acaaf
Fix test to account for generating some vector code for mul v2i64 instead
...
of incorrectly generating pmuldq
llvm-svn: 61228
2008-12-18 23:42:37 +00:00
070de29fcf
Didn't mean to commit this.
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llvm-svn: 61222
2008-12-18 22:19:50 +00:00
9abd04bf3f
Teach LowerSubregs to preserve kill/dead information when lowering
...
subreg instructions.
llvm-svn: 61220
2008-12-18 22:14:08 +00:00
4c13e77d49
Re-XFAIL this test until debug stuff settles down.
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llvm-svn: 61219
2008-12-18 22:13:31 +00:00
c4ce336205
Make LowerSubregs' debug output for EXTRACT_SUBREG consistent with
...
that of INSERT_SUBREG and SUBREG_TO_REG.
llvm-svn: 61218
2008-12-18 22:11:34 +00:00
d38c00c85b
Fix a copy+pasto in an assertion message.
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llvm-svn: 61217
2008-12-18 22:07:25 +00:00
451afdd9fe
Fix indentation level.
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llvm-svn: 61216
2008-12-18 22:06:01 +00:00
69cd963b9a
When emitting instructions that define EFLAGS and the EFLAGS value isn't
...
used, mark the defs as dead.
llvm-svn: 61215
2008-12-18 22:03:42 +00:00
975f78ae79
When setting up the frame pointer, add it as a live-in register to all
...
non-entry blocks, so that it doesn't appear use-before-def anywhere.
llvm-svn: 61214
2008-12-18 22:01:52 +00:00
0ab1144c79
Print subreg information in MachineInstr::dump.
...
llvm-svn: 61213
2008-12-18 21:51:27 +00:00
998fd29ce1
Fixed x86 code generation of multiple for v2i64. It was incorrect for SSE4.1.
...
llvm-svn: 61211
2008-12-18 21:42:19 +00:00
6e5f4bc1e7
Added some basic test cases for r61209
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llvm-svn: 61210
2008-12-18 20:05:58 +00:00
a501640ffa
Added support for vector widening.
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llvm-svn: 61209
2008-12-18 20:03:17 +00:00
8e0f6f272f
Remove dead comments.
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llvm-svn: 61201
2008-12-18 09:01:18 +00:00
c3a70ade66
Oops! Left out a line.
...
Simplifying the sdiv might allow further simplifications for our users.
llvm-svn: 61196
2008-12-18 06:42:28 +00:00
0f0e63fe73
Make all the vector elements positive in an srem of constant vector.
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llvm-svn: 61195
2008-12-18 06:31:11 +00:00
Dan Gohman